# EDGAR Filing Document

**Accession Number:** 0001190935
**File Stem:** 0001193125-23-064774
**Filing Date:** 2023-3
**Character Count:** 800405
**Document Hash:** e21a0dce2acffce091073d07b26135a9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-064774.hdr.sgml**: 20230309

**ACCESSION NUMBER**: 0001193125-23-064774

**CONFORMED SUBMISSION TYPE**: N-CSRS

**PUBLIC DOCUMENT COUNT**: 17

**FILED AS OF DATE**: 20230309

**DATE AS OF CHANGE**: 20230308

**EFFECTIVENESS DATE**: 20230309

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PIMCO CORPORATE & INCOME OPPORTUNITY FUND
- **CENTRAL INDEX KEY:** 0001190935
- **IRS NUMBER:** 466121513
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** N-CSRS
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-21238
- **FILM NUMBER:** 23717535

**BUSINESS ADDRESS:**
- **STREET 1:** 1633 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
- **BUSINESS PHONE:** 212-739-4000

**MAIL ADDRESS:**
- **STREET 1:** 1633 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PIMCO CORPORATE OPPORTUNITY FUND
- **DATE OF NAME CHANGE:** 20021022

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PIMCO CORPORATE ADVANTAGE FUND
- **DATE OF NAME CHANGE:** 20020919

?xml version="1.0" encoding="utf-8" ? PIMCO Corporate & Income Opportunity Fund

#### UNITED STATES

#### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM N-CSR

#### CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES
Investment Company Act file number: 811-21238

### PIMCO Corporate & Income Opportunity Fund

#### (Exact name of registrant as specified in charter)

#### 1633 Broadway, New York, NY 10019

#### (Address of principal executive offices)

#### Bijal Y. Parikh

#### Treasurer (Principal Financial & Accounting Officer)

#### 650 Newport Center Drive, Newport Beach, CA 92660

#### (Name and address of agent for service)
Copies to:

#### David C. Sullivan

#### Ropes & Gray LLP

#### Prudential Tower

#### 800 Boylston Street

#### Boston, MA 02199
Registrant's telephone number, including area code: (844) 337-4626

Date of fiscal year end: June 30

Date of reporting period: December 31, 2022

Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

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**Item 1.** **Reports to Shareholders.**<br>

The following is a copy of the report transmitted to shareholders pursuant to Rule 30e-1 under the Investment Company Act of 1940, as amended (the "1940 Act") (17 CFR 270.30e-1).

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![LOGO](g414266g1g13e39.jpg)

PIMCO CLOSED-END FUNDS

## Semiannual Report
December 31, 2022

PIMCO Corporate & Income Opportunity Fund \| PTY \| NYSE

PIMCO Corporate & Income Strategy Fund \| PCN \| NYSE

PIMCO High Income Fund \| PHK \| NYSE

PIMCO Income Strategy Fund \| PFL \| NYSE

PIMCO Income Strategy Fund II \| PFN \| NYSE

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#### **Table of Contents**

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|:---|:---|:---|
|  | | Page |
| &nbsp;&nbsp; [Letter from the Chair of the Board & President](#tx410724_1) |  | 2 |
| &nbsp;&nbsp; [Important Information About the Funds](#tx410724_2) |  | 4 |
| &nbsp;&nbsp; [Financial Highlights](#tx410724_4) |  | 16 |
| &nbsp;&nbsp; [Statements of Assets and Liabilities](#tx410724_5) |  | 20 |
| &nbsp;&nbsp; [Statements of Operations](#tx410724_6) |  | 21 |
| &nbsp;&nbsp; [Statements of Changes in Net Assets](#tx410724_7) |  | 22 |
| &nbsp;&nbsp; [Statements of Cash Flows](#tx410724_8) |  | 24 |
| &nbsp;&nbsp; [Notes to Financial Statements](#tx410724_9) |  | 84 |
| &nbsp;&nbsp; [Glossary](#tx410724_11) |  | 114 |
| &nbsp;&nbsp; [Distribution Information](#tx410724_13) |  | 115 |
| &nbsp;&nbsp; [Investment Strategy Updates](#tx410724_51) |  | 116 |
| &nbsp;&nbsp; [Changes to Boards of Trustees](#tx410724_15) |  | 117 |
| Fund | Fund<br>Summary | Schedule of<br>Investments |
| &nbsp;&nbsp; [PIMCO Corporate & Income Opportunity Fund](#tx410724_1001) | 11 | [25](#tx410724_1006) |
| &nbsp;&nbsp; [PIMCO Corporate & Income Strategy Fund](#tx410724_1002) | 12 | [40](#tx410724_1007) |
| &nbsp;&nbsp; [PIMCO High Income Fund](#tx410724_1003) | 13 | [51](#tx410724_1008) |
| &nbsp;&nbsp; [PIMCO Income Strategy Fund](#tx410724_1004) | 14 | [62](#tx410724_1009) |
| &nbsp;&nbsp; [PIMCO Income Strategy Fund II](#tx410724_1005) | 15 | [73](#tx410724_1010) |

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Letter from the Chair of the Board & President &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;

Dear Shareholder,

2022 was a challenging year in the financial markets. We continue to work tirelessly to navigate global markets and manage the assets that you have entrusted with us. Following this letter is the PIMCO Closed-End Funds Semiannual Report, which covers the six-month reporting period ended December 31, 2022 (the "reporting period"). On the subsequent pages, you will find details regarding investment results and a discussion of the factors that most affected performance during the reporting period.

For the six-month reporting period ended December 31, 2022

The global economy faced significant headwinds in 2022, including those related to higher inflation, the COVID-19 pandemic, and the Russia-Ukraine conflict. In the U.S., second quarter 2022, prior to the beginning of the reporting period, annualized gross domestic product ("GDP") was -0.6%. The economy then strengthened, as third quarter annualized GDP was +3.2%. The Commerce Department's initial estimate for fourth quarter 2022 annualized GDP — released after the reporting period ended — was 2.9%.

The Federal Reserve Board (the "Fed" or "U.S. central bank") took actions to combat elevated inflation. In March 2022, the Fed raised the federal funds rate 0.25% to a range between 0.25% and 0.50%, its first rate hike since 2018. The U.S. central bank then raised rates at its next six meetings, for a total increase of 4.25% in 2022. At the end of the year, the federal funds rate was in a range between 4.25% and 4.50%.

Economies outside the U.S. also faced several headwinds. In its October 2022 World Economic Outlook Update, the International Monetary Fund (the "IMF") downgraded its expectation for 2022 GDP citing "turbulent challenges" including high inflation, tightening financial conditions, as well as the ongoing Russia-Ukraine conflict and COVID-19 pandemic. For 2022, the IMF included in its projections that GDP would grow 1.6% in the U.S. (from 5.7% in 2021), 3.1% in the eurozone (from 5.2% in 2021), 3.6% in the U.K. (from 7.4% in 2021), and 1.7% in Japan (the same as in 2021).

Several central banks tightened their respective monetary policies in recent years. For example, in December 2021, prior to the beginning of the reporting period, the Bank of England (the "BoE") raised rates for the first time since COVID-19 began. The BoE again raised rates at its next eight meetings, for a total of 3.50% in rate hikes since its first increase. The European Central Bank raised rates four times in 2022, for a total increase of 2.50%. In contrast, the Bank of Japan (the "BoJ") maintained its loose monetary policy for most of 2022. However, in December 2022 the BoJ announced that it would allow its 10-year government bond yield to rise to 0.5% (previously limited to 0.25%). The news sent the 10-year bond yield and Japanese yen higher, as market participants interpreted the announcement to mean that the BoJ may pivot from its previous monetary stance.

During the reporting period, short- and long-term U.S. Treasury yields moved higher. The yield on the benchmark 10-year U.S. Treasury note was 3.88% on December 31, 2022, versus 2.98% on June 30, 2022. The Bloomberg Global Treasury Index (USD Hedged), which tracks fixed-rate, local currency government debt of investment grade countries, including developed and emerging markets, returned -2.97%. Meanwhile, the Bloomberg Global Aggregate Credit Index (USD Hedged), a widely used index of global investment grade credit bonds, returned -1.59%. In contrast, riskier fixed income asset classes, including high yield corporate bonds and emerging market debt, generated positive returns. The ICE BofAML Developed Markets High Yield Constrained Index (USD Hedged), a widely used index of below-investment-grade bonds, returned 3.82%, whereas emerging market external debt, as represented by the JPMorgan Emerging Markets Bond Index (EMBI) Global (USD Hedged), returned 2.93%. Emerging market local bonds, as represented by the JPMorgan Government Bond Index-Emerging Markets Global Diversified Index (Unhedged), returned 3.33%.

Amid periods of volatility, global equities generally posted mixed results during the reporting period as economic and geopolitical concerns impacted investor sentiment. U.S. equities, as represented by the S&P 500 Index, returned 2.31%.

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|:---|:---|
| **2** | **PIMCO CLOSED-END FUNDS** |

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&nbsp;&nbsp;&nbsp;&nbsp;

Global equities, as represented by the MSCI World Index, returned 2.97%, while emerging market equities, as measured by the MSCI Emerging Markets Index, returned -2.99%. Meanwhile, Japanese equities, as represented by the Nikkei 225 Index (in Japanese yen), returned -0.06% and European equities, as represented by the MSCI Europe Index (in euro), returned 5.05%.

Commodity prices were volatile and generated mixed returns during the reporting period. Brent crude oil, which was approximately $119.78 a barrel at the start of the reporting period, fell to roughly $82.82 a barrel at the end of December 2022. In contrast, prices of other commodities, such as copper and gold, edged higher during the period.

Finally, there were also periods of volatility in the foreign exchange markets. We believe this was driven by several factors, including economic growth expectations and changing central bank monetary policies, as well as rising inflation, COVID-19 variants, and geopolitical events. The U.S. dollar was mixed against several major currencies. For example, during the reporting period, the U.S. dollar returned -2.11%, +0.78%, and -3.51% versus the euro, the British pound and the Japanese yen, respectively.

Thank you for the assets you have placed with us. We deeply value your trust, and we will continue to work diligently to meet your broad investment needs. For any questions regarding your PIMCO Closed-End Funds investments, please contact your financial adviser, or call the Funds' shareholder servicing agent at (844) 33-PIMCO. We also invite you to visit our website at pimco.com to learn more about our global viewpoints.

Sincerely,

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| | |
|:---|:---|
| ![LOGO](g414266g1g26k88.jpg) | ![LOGO](g414266g1g59t56.jpg) |
| ![LOGO](g414266g1g54k60.jpg) | ![LOGO](g414266g1g62v48.jpg) |
| Deborah A. DeCotis | Eric D. Johnson |
| Chair of the Board of Trustees | President |

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Past performance is no guarantee of future results. Unless otherwise noted, index returns reflect the reinvestment of income distributions and capital gains, if any, but do not reflect fees, brokerage commissions or other expenses of investing. It is not possible to invest directly in an unmanaged index.

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|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022<sub>3</sub> |

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Important Information About the Funds &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;

We believe that bond funds have an important role to play in a well-diversified investment portfolio. It is important to note, however, that in an environment where interest rates may trend upward, rising rates would negatively impact the performance of most bond funds, and fixed-income securities and other instruments held by a Fund are likely to decrease in value. A wide variety of factors can cause interest rates or yields of U.S. Treasury securities (or yields of other types of bonds) to rise (e.g., central bank monetary policies, inflation rates, general economic conditions, etc.). In addition, changes in interest rates can be sudden and unpredictable, and there is no guarantee that Fund management will anticipate such movement accurately. A Fund may lose money as a result of movements in interest rates.

As of the date of this report, interest rates in the United States and many parts of the world, including certain European countries, continue to increase. In efforts to combat inflation, the U.S. Federal Reserve raised interest rates multiple times in 2022 and has indicated an expectation that it will continue to raise interest rates in 2023. Thus, bond funds currently face a heightened level of risk associated with rising interest rates and/or bond yields. This could be driven by a variety of factors, including but not limited to central bank monetary policies, changing inflation or real growth rates, general economic conditions, increasing bond issuances or reduced market demand for low yielding investments. Further, while bond markets have steadily grown over the past three decades, dealer inventories of corporate bonds are near historic lows in relation to market size. As a result, there has been a significant reduction in the ability of dealers to "make markets".

Bond funds and individual bonds with a longer duration (a measure used to determine the sensitivity of a security's price to changes in interest rates) tend to be more sensitive to changes in interest rates, usually making them more volatile than securities or funds with shorter durations. All of the factors mentioned above, individually or collectively, could lead to increased volatility and/or lower liquidity in the fixed income markets or negatively impact a Fund's performance or cause a Fund to incur losses.

A Fund may enter into opposite sides of multiple interest rate swaps or other derivatives with respect to the same underlying reference instrument (e.g., a 10-year U.S. treasury) that have different effective dates with respect to interest accrual time periods also for the principal purpose of generating distributable gains (characterized as ordinary income for tax purposes) that are not part of a Fund's duration or yield curve management strategies. In such a "paired swap transaction", a Fund would generally enter into one or more interest rate swap agreements whereby a Fund agrees to make regular payments starting at the time the Fund enters into the agreements equal to a floating interest rate in return for payments equal to a fixed interest rate (the "initial leg"). A Fund would also enter into one or more interest rate

swap agreements on the same underlying instrument, but take the opposite position (i.e., in this example, a Fund would make regular payments equal to a fixed interest rate in return for receiving payments equal to a floating interest rate) with respect to a contract whereby the payment obligations do not commence until a date following the commencement of the initial leg (the "forward leg").

A Fund may engage in investment strategies, including those that employ the use of paired swaps transactions, the use of interest rate swaps to seek to capitalize on differences between short-term and long-term interest rates and other derivatives transactions, to, among other things, seek to generate current, distributable income, even if such strategies could potentially result in declines in the Fund's net asset value ("NAV"). A Fund's income and gain-generating strategies, including certain derivatives strategies, may generate current income and gains taxable as ordinary income sufficient to support monthly distributions even in situations when a Fund has experienced a decline in net assets due to, for example, adverse changes in the broad U.S. or non-U.S. equity markets or a Fund's debt investments, or arising from its use of derivatives. For instance, a portion of a Fund's monthly distributions may be sourced from paired swap transactions utilized to produce current distributable ordinary income for tax purposes on the initial leg, with a substantial possibility that a Fund will later realize a corresponding capital loss and potential decline in its NAV with respect to the forward leg (to the extent there are not corresponding offsetting capital gains being generated from other sources). Because some or all of these transactions may generate capital losses without corresponding offsetting capital gains, portions of a Fund's distributions recognized as ordinary income for tax purposes (such as from paired swap transactions) may be economically similar to a taxable return of capital when considered together with such capital losses.

The use of derivatives may subject the Funds to greater volatility than investments in traditional securities. The Funds may use derivative instruments for hedging purposes or as part of an investment strategy. Use of these instruments may involve certain costs and risks such as liquidity risk (which may be heightened for highly-customized derivatives), interest rate risk, market risk, credit risk and management risk, as well as risks arising from changes in applicable requirements. They also involve the risk of improper valuation and the risk that changes in the value of a derivative instrument may not correlate perfectly with the underlying asset, rate or index.

Changes in regulation relating to a Fund's use of derivatives and related instruments could potentially limit or impact a Fund's ability to invest in derivatives, limit a Fund's ability to employ certain strategies that use derivatives and/or adversely affect the value or performance of derivatives and the Fund. Certain derivative transactions may have a

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| **4** | **PIMCO CLOSED-END FUNDS** |

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&nbsp;&nbsp;&nbsp;&nbsp;

leveraging effect on a Fund. For example, a small investment in a derivative instrument may have a significant impact on a Fund's exposure to interest rates, currency exchange rates or other investments. As a result, a relatively small price movement in a derivative instrument may cause an immediate and substantial loss or gain. A Fund may engage in such transactions regardless of whether the Fund owns the asset, instrument or components of the index underlying the derivative instrument. A Fund may invest a significant portion of its assets in these types of instruments. If it does, a Fund's investment exposure could far exceed the value of its portfolio securities and its investment performance could be primarily dependent upon securities it does not own.

Certain Funds' monthly distributions may include, among other possible sources, interest income from its debt portfolio and payments and premiums (characterized as capital for financial accounting purposes and as ordinary income for tax purposes) generated by certain types of interest rate derivatives.

Strategies involving interest rate derivatives (including swaps that are paired) may attempt to capitalize on differences between short-term and long-term interest rates as part of a Fund's duration and yield curve active management strategies. For instance, in the event that long-term interest rates are higher than short-term interest rates, a Fund may elect to pay a floating short-term interest rate and to receive a long-term fixed interest rate for a stipulated period of time, thereby generating payments as a function of the difference between current short-term interest rates and long-term interest rates, so long as the floating short-term interest rate (which may rise) is lower than the fixed long-term interest rate.

The notional exposure of a Fund's interest rate derivatives may represent a multiple of the Fund's total net assets. There can be no assurance a Fund's strategies involving interest rate derivatives will work as intended and such strategies are subject to the risks related to the use of derivatives generally, as discussed above (see also Note 6, Financial Derivative Instruments and Note 7, Principal and Other Risks, in the Notes to Financial Statements for further discussion on the use of derivative instruments and certain of the risks associated therewith).

A Fund's use of leverage creates the opportunity for increased income for the Fund's common shareholders, but also creates special risks. Leverage is a speculative technique that may expose a Fund to greater risk and increased costs. If shorter-term interest rates rise relative to the rate of return on a Fund's portfolio, the interest and other costs of leverage to the Fund could exceed the rate of return on the debt obligations and other investments held by the Fund, thereby reducing return to the Fund's common shareholders. In addition, fees and expenses of any form of leverage used by a Fund will be borne entirely

by its common shareholders (and not by preferred shareholders, if any) and will reduce the investment return of the Fund's common shares. Moreover, to make payments of interest and other loan costs, a Fund may be forced to sell portfolio securities when it is not otherwise advantageous to do so.

In addition, because the fees received by PIMCO are based on the average weekly total managed assets (including any assets attributable to any preferred shares or other forms of leverage that may be outstanding) minus any accrued liabilities (other than liabilities representing leverage) of PIMCO Income Strategy Fund and PIMCO Income Strategy Fund II, and on the average daily NAV (including daily net assets attributable to any preferred shares that may be outstanding) of PIMCO Corporate & Income Opportunity Fund, PIMCO Corporate & Income Strategy Fund and PIMCO High Income Fund, PIMCO has a financial incentive for a Fund to use certain forms of leverage, which may create a conflict of interest between PIMCO, on the one hand, and the common shareholders of a Fund, on the other hand.

There can be no assurance that a Fund's use of leverage will result in a higher yield on its common shares, and it may result in losses. Leverage creates several major types of risks for a Fund's common shareholders, including: (1) the likelihood of greater volatility of NAV and market price of the Fund's common shares, and of the investment return to the Fund's common shareholders, than a comparable portfolio without leverage; (2) the possibility either that the Fund's common share dividends will fall if the interest and other costs of leverage rise, or that dividends paid on the Fund's common shares will fluctuate because such costs vary over time; and (3) the effects of leverage in a declining market or a rising interest rate environment, as leverage is likely to cause a greater decline in the NAV of the Fund's common shares than if the Fund were not leveraged and may result in a greater decline in the market value of the Fund's common shares.

Classifications of the Funds' portfolio holdings in this report are made according to financial reporting standards. The classification of a particular portfolio holding as shown in the Allocation Breakdown and Schedule of Investments sections of this report may differ from the classification used for the Funds' compliance calculations, including those used in the Funds' prospectus, investment objectives, regulatory, and other investment limitations and policies, which may be based on different asset class, sector or geographical classifications. Each Fund is separately monitored for compliance with respect to prospectus and regulatory requirements.

The geographical classification of foreign (non-U.S.) securities in this report, if any, are classified by the country of incorporation of a holding. In certain instances, a security's country of incorporation may be different from its country of economic exposure.

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| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022<sub>5</sub> |

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Important Information About the Funds (Cont.)

Beginning in January 2020, global financial markets have experienced and may continue to experience significant volatility resulting from the spread of a novel coronavirus known as COVID-19. The outbreak of COVID-19 has resulted in travel and border restrictions, quarantines, supply chain disruptions, lower consumer demand and general market uncertainty. In 2022, many countries lifted some or all restrictions related to COVID-19. However, the effects of COVID-19 have and may continue to adversely affect the global economy, the economies of certain nations and individual issuers, all of which may negatively impact the Funds' performance. In addition, COVID-19 and governmental responses to COVID-19 may negatively impact the capabilities of the Funds' service providers and disrupt the Funds' operations.

The United States' enforcement of restrictions on U.S. investments in certain issuers and tariffs on goods from certain other countries has contributed to and may continue to contribute to international trade tensions and may impact portfolio securities. The United States' enforcement of sanctions or other similar measures on various Russian entities and persons, and the Russian government's response, may also negatively impact securities and instruments that are economically tied to Russia.

The United Kingdom's withdrawal from the European Union may impact Fund returns. The withdrawal may cause substantial volatility in foreign exchange markets, lead to weakness in the exchange rate of the British pound, result in a sustained period of market uncertainty, and destabilize some or all of the other European Union member countries and/or the Eurozone.

The Funds may invest in certain instruments that rely in some fashion upon the London Interbank Offered Rate ("LIBOR"). LIBOR is an average interest rate, determined by the ICE Benchmark Administration, that banks charge one another for the use of short-term money. The United Kingdom's Financial Conduct Authority, which regulates LIBOR, has announced plans to ultimately phase out the use of LIBOR. The transition may result in a reduction in the value of certain instruments held by a Fund or a reduction in the effectiveness of related Fund transactions such as hedges. There remains uncertainty regarding future utilization of LIBOR and the nature of any replacement rate (e.g., the Secured Overnight Financing Rate, which is intended to replace U.S. dollar LIBOR and measures the cost of overnight borrowings through repurchase agreement transactions collateralized with U.S. Treasury securities). Any potential effects of the transition away from LIBOR on a Fund or on certain instruments in which a Fund invests can be difficult to ascertain, and they may vary depending on a variety of factors. Any such effects of the transition away from LIBOR, as well as other unforeseen effects, could result in losses to a Fund.

The common shares of the Funds trade on the New York Stock Exchange. As with any stock, the price of a Fund's common shares will fluctuate with market conditions and other factors. If you sell your common shares of a Fund, the price received may be more or less than your original investment. Shares of closed-end management investment companies, such as the Funds, frequently trade at a discount from their NAV and may trade at a price that is less than the initial offering price and/or the NAV of such shares. Further, if a Fund's shares trade at a price that is more than the initial offering price and/or the NAV of such shares, including at a substantial premium and/or for an extended period of time, there is no assurance that any such premium will be sustained for any period of time and will not decrease, or that the shares will not trade at a discount to NAV thereafter.

Investments in loans through a purchase of a loan or a direct assignment of a financial institution's interests with respect to a loan are generally subject to risks similar to those of investments in other types of debt obligations, including, among others, credit risk, interest rate risk, variable and floating rate securities risk, and, as applicable, risks associated with mortgage-related securities. In addition, in many cases loans are subject to the risks associated with below-investment grade securities. In the case of a loan participation or assignment, a Fund generally has no right to enforce compliance with the terms of the loan agreement with the borrower. As a result, a Fund may be subject to the credit risk of both the borrower and the lender that is selling the loan agreement. In the event of the insolvency of the lender selling a loan participation, a Fund may be treated as a general creditor of the lender and may not benefit from any set-off between the lender and the borrower. A Fund may be subject to heightened or additional risks and potential liabilities and costs by investing in mezzanine and other subordinated loans, including those arising under bankruptcy, fraudulent conveyance, equitable subordination, lender liability, environmental and other laws and regulations, and risks and costs associated with debt servicing and taking foreclosure actions associated with the loans.

Mortgage-related and other asset-backed securities represent interests in "pools" of mortgages or other assets such as consumer loans or receivables held in trust and often involve risks that are different from or possibly more acute than risks associated with other types of debt instruments. Generally, rising interest rates tend to extend the duration of fixed rate mortgage-related securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, if a Fund holds mortgage-related securities, it may exhibit additional volatility since individual mortgage holders are less likely to exercise prepayment options, thereby putting additional downward pressure on the value of these securities and potentially causing the Fund to lose money. This is known as extension risk. Mortgage-backed

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|:---|:---|
| **6** | **PIMCO CLOSED-END FUNDS** |

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securities can be highly sensitive to rising interest rates, such that even small movements can cause an investing Fund to lose value. Mortgage-backed securities, and in particular those not backed by a government guarantee, are subject to credit risk. In addition, adjustable and fixed rate mortgage-related securities are subject to prepayment risk. When interest rates decline, borrowers may pay off their mortgages sooner than expected. This can reduce the returns of the Funds because the Funds may have to reinvest that money at the lower prevailing interest rates. The Funds' investments in other asset-backed securities are subject to risks similar to those associated with mortgage-related securities, as well as additional risks associated with the nature of the assets and the servicing of those assets. Payment of principal and interest on asset- backed securities may be largely dependent upon the cash flows generated by the assets backing the securities, and asset-backed securities may not have the benefit of any security interest in the related assets. Additionally, investments in subordinate mortgage-backed and other asset-backed instruments will be subject to risks arising from delinquencies and foreclosures, thereby exposing a Fund's investment portfolio to potential losses. Subordinate securities of mortgage-backed and other asset-backed instruments are also subject to greater credit risk than those mortgage-backed or other asset-backed securities that are more highly rated.

A Fund may also invest in the residual or equity tranches of mortgage- related and other asset-backed instruments, which may be referred to as subordinate mortgage-backed or asset-backed instruments and interest-only mortgage-backed or asset-backed instruments. Because an investment in the residual or equity tranche of a mortgage-related or other asset-backed instrument will be the first to bear losses incurred by such instrument, these investments may involve a significantly greater degree of risk than investments in other tranches of a mortgage-related or other asset-backed instruments.

High-yield bonds (commonly referred to as "junk bonds") typically have a lower credit rating than other bonds. Lower-rated bonds generally involve a greater risk to principal than higher-rated bonds. Further, markets for lower-rated bonds are typically less liquid than for higher- rated bonds, and public information is usually less abundant in markets for lower-rated bonds. Thus, high yield investments increase the chance that a Fund will lose money. PIMCO does not rely solely on credit ratings, and develops its own analysis of issuer credit quality. A Fund may purchase unrated securities (which are not rated by a rating agency) if PIMCO determines that the security is of comparable quality to a rated security that a Fund may purchase. Unrated securities may be less liquid than comparable rated securities and involve the risk that PIMCO may not accurately evaluate the security's comparative credit quality, which could result in a Fund's portfolio having a higher level of credit and/or high yield risk than PIMCO has estimated or desires for

the Fund, and could negatively impact the Fund's performance and/or returns. Certain Funds may invest a substantial portion of their assets in unrated securities and therefore may be particularly subject to the associated risks. To the extent that a Fund invests in high yield and/or unrated securities, the Fund's success in achieving its investment objectives may depend more heavily on the portfolio manager's creditworthiness analysis than if the Fund invested exclusively in higher-quality and rated securities. The Funds may hold defaulted securities that may involve special considerations including bankruptcy proceedings, other regulatory and legal restrictions affecting the Funds' ability to trade, and the availability of prices from independent pricing services or dealer quotations. Defaulted obligations might be repaid only after lengthy workout or bankruptcy proceedings, during which the issuer might not make any interest or other payments. Defaulted securities are often illiquid and may not be actively traded. Sales of securities in bankrupt companies at an acceptable price may be difficult and differences compared to the value of the securities used by the Funds could be material. The credit quality of a particular security or group of securities does not ensure the stability or safety of the overall portfolio.

Contingent convertible securities ("CoCos") are a form of hybrid debt security issued primarily by non-U.S. issuers, which have loss absorption mechanisms built into their terms. The risks of investing in CoCos include, without limitation, the risk that interest payments will be cancelled by the issuer or a regulatory authority, the risk of ranking junior to other creditors in the event of a liquidation or other bankruptcy-related event as a result of holding subordinated debt, the risk of the Fund's investment becoming further subordinated as a result of conversion from debt to equity, the risk that the principal amount due can be written down to a lesser amount, and the general risks applicable to fixed income investments, including interest rate risk, credit risk, market risk and liquidity risk, any of which could result in losses to the Fund. CoCos may experience a loss absorption mechanism trigger event, which would likely be the result of, or related to, the deterioration of the issuer's financial condition (e.g., a decrease in the issuer's capital ratio) and status as a going concern. In such a case, with respect to CoCos that provide for conversion into common stock upon the occurrence of the trigger event, the market price of the issuer's common stock received by the Fund will have likely declined, perhaps substantially, and may continue to decline, which may adversely affect the Fund's NAV.

Variable and floating rate securities may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Conversely, floating rate securities will not generally increase in value if interest rates decline. Inverse floating rate securities may decrease in value if interest rates increase. Inverse floating rate securities may also exhibit greater price volatility than a fixed rate obligation with similar

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| | | |
|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022<sub>7</sub> |

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Important Information About the Funds (Cont.)

credit quality. When a Fund holds variable or floating rate securities, a decrease (or, in the case of inverse floating rate securities, an increase) in market interest rates will adversely affect the income received from such securities and the NAV of the Funds' shares.

As the use of technology has become more prevalent in the course of business, the Funds have become potentially more susceptible to operational and information security risks resulting from breaches in cyber security. A breach in cyber security refers to both intentional and unintentional cyber events that may, among other things, cause a Fund to lose proprietary information, suffer data corruption and/or destruction or lose operational capacity, result in the unauthorized release or other misuse of confidential information, or otherwise disrupt normal business operations.

Cyber security failures or breaches may result in financial losses to a Fund and its shareholders. These failures or breaches may also result in disruptions to business operations, potentially resulting in financial losses; interference with a Fund's ability to calculate its NAV, process shareholder transactions or otherwise transact business with shareholders; impediments to trading; violations of applicable privacy and other laws; regulatory fines; penalties; third party claims in litigation; reputational damage; reimbursement or other compensation costs; additional compliance and cyber security risk management costs and other adverse consequences. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future. There is also a risk that cyber security breaches may not be detected. The Funds and their shareholders may suffer losses as a result of a cyber security breach related to the Funds, its service providers, trading counterparties or the issuers in which a Fund invests.

The Funds may be subject to various risks. A description of certain of these risks is available in the Notes to Financial Statements of this report.

On each applicable Fund Summary page in this Shareholder Report, the Average Annual Total Return table and Cumulative Returns chart measure performance assuming that any dividend and capital gain distributions were reinvested. Total return is calculated by determining the percentage change in NAV or market price (as applicable) in the specified period. Returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions. Total return for a period of more than one year represents the average annual total return. Performance at market price will differ from results at NAV. Although market price returns tend to reflect investment results over time, during shorter periods returns at market price can also be influenced by factors such as changing views about a Fund, market conditions, supply and demand for the Fund's shares, or changes in the Fund's dividends. Performance shown is net of fees and expenses. Historical NAV performance for a Fund may have been positively impacted by fee

waivers or expense limitations in place during some or all of the periods shown, if applicable. Future performance (including total return or yield) and distributions may be negatively impacted by the expiration or reduction of any such fee waivers or expense limitations.

The dividend rate that a Fund pays on its common shares may vary as portfolio and market conditions change, and will depend on a number of factors, including without limit the amount of a Fund's undistributed net investment income and net short- and long-term capital gains, as well as the costs of any leverage obtained by a Fund. As portfolio and market conditions change, the rate of distributions on the common shares and a Fund's dividend policy could change. There can be no assurance that a change in market conditions or other factors will not result in a change in a Fund's distribution rate or that the rate will be sustainable in the future.

The following table discloses the inception date and diversification status of each Fund:

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| | | |
|:---|:---|:---|
| Fund Name | Inception<br>Date | Diversification<br>Status |
|  PIMCO Corporate & Income Opportunity Fund | 12/27/02 | Diversified |
|  PIMCO Corporate & Income Strategy Fund | 12/21/01 | Diversified |
|  PIMCO High Income Fund | 04/30/03 | Diversified |
|  PIMCO Income Strategy Fund | 08/29/03 | Diversified |
|  PIMCO Income Strategy Fund II | 10/29/04 | Diversified |

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An investment in a Fund is not a bank deposit and is not guaranteed or insured by the Federal Deposit Insurance Corporation or any other government agency. It is possible to lose money on investments in the Funds.

The Trustees are responsible generally for overseeing the management of the Funds. The Trustees authorize the Funds to enter into service agreements with Pacific Investment Management Company LLC ("PIMCO") and other service providers in order to provide, and in some cases authorize service providers to procure through other parties, necessary or desirable services on behalf of the Funds. Shareholders are not parties to or third-party beneficiaries of such service agreements. Neither a Fund's prospectus or Statement of Additional Information ("SAI"), any press release or shareholder report, any contracts filed as exhibits to a Fund's registration statement, nor any other communications, disclosure documents or regulatory filings (including this report) from or on behalf of a Fund creates a contract between or among any shareholders of a Fund, on the one hand, and the Fund, a service provider to the Fund, and/or the Trustees or officers of the Fund, on the other hand.

The Trustees (or the Funds and their officers, service providers or other delegates acting under authority of the Trustees) may amend its most recent prospectus or use a new prospectus or SAI with respect to a

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| | |
|:---|:---|
| **8** | **PIMCO CLOSED-END FUNDS** |

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&nbsp;&nbsp;&nbsp;&nbsp;

Fund, adopt and disclose new or amended policies and other changes in press releases and shareholder reports and/or amend, file and/or issue any other communications, disclosure documents or regulatory filings, and may amend or enter into any contracts to which a Fund is a party, and interpret the investment objective(s), policies, restrictions and contractual provisions applicable to any Fund, without shareholder input or approval, except in circumstances in which shareholder approval is specifically required by law (such as changes to fundamental investment policies) or where a shareholder approval requirement was specifically disclosed in a Fund's then-current prospectus, SAI or shareholder report and is otherwise still in effect.

PIMCO has adopted written proxy voting policies and procedures ("Proxy Policy") as required by Rule 206(4)-6 under the Investment Advisers Act of 1940, as amended. The Proxy Policy has been adopted by the Funds as the policies and procedures that PIMCO will use when voting proxies on behalf of the Funds. A description of the policies and procedures that PIMCO uses to vote proxies relating to portfolio securities of each Fund, and information about how each Fund voted proxies relating to portfolio securities held during the most recent twelve-month period ended June 30th, are available without charge, upon request, by calling the Funds at (844) 33-PIMCO, on the Funds' website at www.pimco.com, and on the Securities and Exchange Commission's ("SEC") website at www.sec.gov.

The Funds file portfolio holdings information with the SEC on Form N-PORT within 60 days of the end of each fiscal quarter. The Funds' complete schedules of securities holdings as of the end of each fiscal quarter will be made available to the public on the SEC's website at www.sec.gov and on PIMCO's website at www.pimco.com, and will be made available, upon request, by calling PIMCO at (844) 33-PIMCO.

SEC rules allow shareholder reports to be delivered to investors by providing access to such reports online free of charge and by mailing a notice that the report is electronically available. Investors may elect to receive all reports in paper free of charge by contacting their financial intermediary or, if invested directly with a Fund, investors can inform the Fund by calling (844) 33-PIMCO. Any election to receive reports in paper will apply to all funds held with the fund complex if invested directly with a Fund or to all funds held in the investor's account if invested through a financial intermediary, such as a broker-dealer or bank.

In April 2020, the SEC adopted amended rules modifying the registration, communications, and offering processes for registered closed-end funds and interval funds. Among other things, the amendments: (1) permit qualifying closed-end funds to use a short-form registration statement to offer securities in eligible transactions and certain funds to qualify as Well Known Seasoned Issuers; (2) permit interval funds to pay registration fees based on net issuance of shares

in a manner similar to mutual funds; (3) require closed-end funds and interval funds to include additional disclosures in their annual reports; and (4) require certain information to be filed in interactive data format. The new rules have phased compliance dates, with some requirements having already taken effect and others requiring compliance as late as February 1, 2023.

In October 2020, the SEC adopted a rule related to the use of derivatives, short sales, reverse repurchase agreements and certain other transactions by registered investment companies that rescinds and withdraws prior guidance of the SEC and its staff regarding asset segregation and cover transactions. Subject to certain exceptions, the rule requires funds that trade derivatives and other transactions that create future payment or delivery obligations to comply with a value-at-risk leverage limit and certain derivatives risk management program and reporting requirements. These requirements may limit the ability of the Funds to use derivatives and reverse repurchase agreements and similar financing transactions as part of their investment strategies and may increase the cost of the Funds' investments and cost of doing business, which could adversely affect investors. The rule went into effect on February 19, 2021. The compliance date for the new rule and related reporting requirements was August 19, 2022.

In October 2020, the SEC adopted a rule regarding the ability of a fund to invest in other funds. The rule allows a fund to acquire shares of another fund in excess of certain limitations currently imposed by the Investment Company Act of 1940 (the "Act") without obtaining individual exemptive relief from the SEC, subject to certain conditions. The rule also includes the rescission of certain exemptive relief from the SEC and guidance from the SEC staff for funds to invest in other funds. The effective date for the rule was January 19, 2021, and the compliance date for the rule was January 19, 2022.

In December 2020, the SEC adopted a rule addressing fair valuation of fund investments. The new rule sets forth requirements for good faith determinations of fair value as well as for the performance of fair value determinations, including related oversight and reporting obligations. The new rule also defines "readily available market quotations" for purposes of the definition of "value" under the Act, and the SEC noted that this definition will apply in all contexts under the Act. The effective date for the rule was March 8, 2021. The compliance date for the new rule and the related reporting requirements was September 8, 2022.

In May 2022, the SEC proposed amendments to a current rule governing fund naming conventions. In general, the current rule requires funds with certain types of names to adopt a policy to invest at least 80% of their assets in the type of investment suggested by the name. The proposed amendments would expand the scope of the current rule in a number of ways that would result in an expansion of

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| | | |
|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022<sub>9</sub> |

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Important Information About the Funds (Cont.)

the types of fund names that would require the fund to adopt an 80% investment policy under the rule. Additionally, the proposed amendments would modify the circumstances under which a fund may deviate from its 80% investment policy and address the use and valuation of derivatives instruments for purposes of the rule. The proposal's impact on the Funds will not be known unless and until any final rulemaking is adopted.

In May 2022, the SEC proposed a framework that would require certain registered funds (such as the Funds) to disclose their environmental, social, and governance ("ESG") investing practices. Among other things, the proposed requirements would mandate that funds meeting three pre-defined classifications (*i.e.*, integrated, ESG focused and/or impact funds) provide prospectus and shareholder report disclosure related to the ESG factors, criteria and processes used in managing the fund. The proposal's impact on the Funds will not be known unless and until any final rulemaking is adopted.

In October 2022, the SEC adopted changes to the mutual fund and exchange-traded fund ("ETF") shareholder report and registration statement disclosure requirements and the registered fund advertising rules, which will impact the disclosures provided to shareholders. The rule amendments are effective as of January 24, 2023, but the SEC is providing an 18-month compliance period following the effective date for such amendments other than those addressing fee and expense information in advertisements that might be materially misleading.

In November 2022, the SEC adopted amendments to Form N-PX under the Act to improve the utility to investors of proxy voting information reported by mutual funds, ETFs and certain other funds. The rule amendments will expand the scope of funds' Form N-PX reporting obligations, subject managers to Form N-PX reporting obligations for "Say on Pay" votes, enhance Form N-PX disclosures, permit joint reporting by funds, managers and affiliated managers on Form N-PX; and require website availability of fund proxy voting records. The amendments will become effective on July 1, 2024. Funds and managers will be required to file their first reports covering the period from July 1, 2023 to June 30, 2024 on amended Form N-PX by August 31, 2024.

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|:---|:---|
| **10** | **PIMCO CLOSED-END FUNDS** |

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PIMCO Corporate & Income Opportunity Fund

Symbol on NYSE - PTY

Allocation Breakdown as of December 31, 2022<sup>†</sup><sup>§</sup>

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| | |
|:---|:---|
|  Corporate Bonds & Notes | 37.3% |
|  Loan Participations and Assignments | 31.9% |
|  Non-Agency Mortgage-Backed Securities | 7.3% |
|  Asset-Backed Securities | 6.8% |
|  Short-Term Instruments | 6.2% |
|  Common Stocks | 2.6% |
|  Preferred Securities | 1.9% |
|  Sovereign Issues | 1.8% |
|  U.S. Government Agencies | 1.2% |
|  Warrants | 1.2% |
|  Municipal Bonds & Notes | 1.1% |
|  Other | 0.7% |

---

---

| | |
|:---|:---|
| <sup>†</sup> | % of Investments, at value.  |

---

---

| | |
|:---|:---|
| <sup>§</sup> | Allocation Breakdown and % of investments exclude securities sold short and financial derivative instruments, if any.  |

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Fund Information (as of December 31, 2022)<sup>(1)</sup>

---

| | |
|:---|:---|
|  Market Price | $12.01 |
|  NAV | $10.92 |
|  Premium/(Discount) to NAV | 9.98% |
|  Market Price Distribution Rate<sup>(2)</sup> | 11.87% |
|  NAV Distribution Rate<sup>(2)</sup> | 13.05% |
|  Total Effective Leverage<sup>(3)</sup> | 38.68% |

---

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 |
|  | 6 Month\* | 1 Year | 5 Year | 10 Year | Commencement<br>of Operations<br>(12/27/02) |
| Market Price | 3.06% | (17.97)% | 3.83% | 7.04% | 11.40% |
| NAV | 5.21% | (12.32)% | 5.54% | 9.08% | 12.24% |

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All Fund returns are net of fees and expenses and include applicable fee waivers and/or expense limitations. Absent any applicable fee waivers and/or expense limitations, performance would have been lower and there can be no assurance that any such waivers or limitations will continue in the future.

\* Cumulative return.

<sup>(1)</sup> Performance quoted represents past performance. Past performance is not a guarantee or a reliable indicator of future results. Current performance may be lower or higher than performance shown. Investment return and the principal value of an investment will fluctuate. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the sale of Fund shares. Total return, market price, NAV, market price distribution rate, and NAV distribution rate will fluctuate with changes in market conditions. The NAV presented may differ from the NAV reported for the same period in other Fund materials. Performance current to the most recent month-end is available at www.pimco.com or via (844) 33-PIMCO. Performance is calculated assuming all dividends and distributions are reinvested at prices obtained under the Fund's dividend reinvestment plan. Performance does not reflect any brokerage commissions in connection with the purchase or sale of Fund shares. 

<sup>(2)</sup> Distribution rates are not performance and are calculated by annualizing the most recent distribution per share and dividing by the NAV or market price, as applicable, as of the reported date. Distributions may be comprised of ordinary income, net capital gains, and/or a return of capital (''ROC'') of your investment in the Fund. Because the distribution rate may include a ROC, it should not be confused with yield or income. If the Fund estimates that a portion of its distribution may be comprised of amounts from sources other than net investment income in accordance with its policies and good accounting practices, the Fund will notify shareholders of the estimated composition of such distribution through a Section 19 Notice. Please refer to the most recent Section 19 Notice, if applicable, for additional information regarding the estimated composition of distributions. Please visit www.pimco.com for most recent Section 19 Notice, if applicable. Final determination of a distribution's tax character will be made on Form 1099 DIV sent to shareholders each January. 

<sup>(3)</sup> Represents total effective leverage outstanding, as a percentage of total managed assets. Total effective leverage consists of preferred shares, reverse repurchase agreements and other borrowings, credit default swap notional and floating rate notes issued in tender option bond transactions, as applicable (collectively "Total Effective Leverage"). The Fund may engage in other transactions not included in Total Effective Leverage disclosed above that may give rise to a form of leverage, including certain derivative transactions. For the purpose of calculating Total Effective Leverage outstanding as a percentage of total managed assets, total managed assets refer to total assets (including assets attributable to Total Effective Leverage that may be outstanding) minus accrued liabilities (other than liabilities representing Total Effective Leverage). 

Investment Objective and Strategy Overview

PIMCO Corporate & Income Opportunity Fund's investment objective is to seek maximum total return through a combination of current income and capital appreciation.

Fund Insights at NAV

The following affected performance (on a gross basis) during the reporting period:

» Exposure to emerging market debt contributed to absolute performance as the sector posted positive performance.

» Exposure to high yield corporate credit contributed to absolute performance as the sector posted positive performance.

» Interest rate positioning, most notably short exposure at the 30-year portion of the curve, contributed to absolute performance as rates rose.

» Exposure to U.S. residential mortgage credit detracted from absolute performance as the sector posted negative performance.

» Exposure to asset-backed securities detracted from absolute performance as the sector posted negative performance.

» Security selection within municipal bonds detracted from performance as select municipal securities posted negative returns.

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| | | |
|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022<sub>11</sub> |

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PIMCO Corporate & Income Strategy Fund

Symbol on NYSE - PCN

Allocation Breakdown as of December 31, 2022<sup>†</sup><sup>§</sup>

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| | |
|:---|:---|
|  Corporate Bonds & Notes | 36.3% |
|  Loan Participations and Assignments | 26.0% |
|  Asset-Backed Securities | 9.3% |
|  Short-Term Instruments | 9.0% |
|  Non-Agency Mortgage-Backed Securities | 6.8% |
|  Common Stocks | 3.3% |
|  Preferred Securities | 2.3% |
|  U.S. Government Agencies | 1.7% |
|  Sovereign Issues | 1.6% |
|  Warrants | 1.5% |
|  Municipal Bonds & Notes | 1.3% |
|  Other | 0.9% |

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| | |
|:---|:---|
| <sup>†</sup> | % of Investments, at value.  |

---

---

| | |
|:---|:---|
| <sup>§</sup> | Allocation Breakdown and % of investments exclude securities sold short and financial derivative instruments, if any.  |

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Fund Information (as of December 31, 2022)<sup>(1)</sup>

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| | |
|:---|:---|
|  Market Price | $11.85 |
|  NAV | $11.25 |
|  Premium/(Discount) to NAV | 5.33% |
|  Market Price Distribution Rate<sup>(2)</sup> | 11.39% |
|  NAV Distribution Rate<sup>(2)</sup> | 12.00% |
|  Total Effective Leverage<sup>(3)</sup> | 30.07% |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 |
|  | 6 Month\* | 1 Year | 5 Year | 10 Year | Commencement<br>of Operations<br>(12/21/01) |
| Market Price | 0.30% | (22.23)% | 1.65% | 6.27% | 9.72% |
| NAV | 4.15% | (11.47)% | 4.39% | 7.51% | 10.37% |

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All Fund returns are net of fees and expenses and include applicable fee waivers and/or expense limitations. Absent any applicable fee waivers and/or expense limitations, performance would have been lower and there can be no assurance that any such waivers or limitations will continue in the future.

\* Cumulative return.

<sup>(1)</sup> Performance quoted represents past performance. Past performance is not a guarantee or a reliable indicator of future results. Current performance may be lower or higher than performance shown. Investment return and the principal value of an investment will fluctuate. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the sale of Fund shares. Total return, market price, NAV, market price distribution rate, and NAV distribution rate will fluctuate with changes in market conditions. The NAV presented may differ from the NAV reported for the same period in other Fund materials. Performance current to the most recent month-end is available at www.pimco.com or via (844) 33-PIMCO. Performance is calculated assuming all dividends and distributions are reinvested at prices obtained under the Fund's dividend reinvestment plan. Performance does not reflect any brokerage commissions in connection with the purchase or sale of Fund shares. 

<sup>(2)</sup> Distribution rates are not performance and are calculated by annualizing the most recent distribution per share and dividing by the NAV or market price, as applicable, as of the reported date. Distributions may be comprised of ordinary income, net capital gains, and/or a return of capital (''ROC'') of your investment in the Fund. Because the distribution rate may include a ROC, it should not be confused with yield or income. If the Fund estimates that a portion of its distribution may be comprised of amounts from sources other than net investment income in accordance with its policies and good accounting practices, the Fund will notify shareholders of the estimated composition of such distribution through a Section 19 Notice. Please refer to the most recent Section 19 Notice, if applicable, for additional information regarding the estimated composition of distributions. Please visit www.pimco.com for most recent Section 19 Notice, if applicable. Final determination of a distribution's tax character will be made on Form 1099 DIV sent to shareholders each January. 

<sup>(3)</sup> Represents total effective leverage outstanding, as a percentage of total managed assets. Total effective leverage consists of preferred shares, reverse repurchase agreements and other borrowings, credit default swap notional and floating rate notes issued in tender option bond transactions, as applicable (collectively "Total Effective Leverage"). The Fund may engage in other transactions not included in Total Effective Leverage disclosed above that may give rise to a form of leverage, including certain derivative transactions. For the purpose of calculating Total Effective Leverage outstanding as a percentage of total managed assets, total managed assets refer to total assets (including assets attributable to Total Effective Leverage that may be outstanding) minus accrued liabilities (other than liabilities representing Total Effective Leverage). 

Investment Objective and Strategy Overview

PIMCO Corporate & Income Strategy Fund's primary investment objective is to seek high current income, with secondary objectives of capital preservation and appreciation.

Fund Insights at NAV

The following affected performance (on a gross basis) during the reporting period:

» Exposure to emerging market debt contributed to absolute performance as the sector posted positive performance.

» Exposure to holdings related to special situation investments, which include companies undergoing stress, distress, challenges, or significant transition, contributed to absolute performance as the securities posted positive returns.

» Exposure to high yield corporate credit contributed to absolute performance as the sector posted positive performance.

» Exposure to U.S. residential mortgage credit detracted from absolute performance as the sector posted negative performance.

» Security selection within municipal bonds detracted from performance as a select taxable municipal security posted negative returns.

» Exposure to asset-backed securities detracted from absolute performance as the sector posted negative performance.

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| | |
|:---|:---|
| **12** | **PIMCO CLOSED-END FUNDS** |

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PIMCO High Income Fund

Symbol on NYSE - PHK

Allocation Breakdown as of December 31, 2022<sup>†</sup><sup>§</sup>

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| | |
|:---|:---|
|  Corporate Bonds & Notes | 34.5% |
|  Loan Participations and Assignments | 22.3% |
|  Short-Term Instruments | 12.2% |
|  Non-Agency Mortgage-Backed Securities | 6.9% |
|  Asset-Backed Securities | 6.4% |
|  Municipal Bonds & Notes | 4.5% |
|  Preferred Securities | 4.3% |
|  Common Stocks | 3.7% |
|  U.S. Government Agencies | 1.8% |
|  Warrants | 1.3% |
|  Sovereign Issues | 1.1% |
|  Other | 1.0% |

---

---

| | |
|:---|:---|
| <sup>†</sup> | % of Investments, at value.  |

---

---

| | |
|:---|:---|
| <sup>§</sup> | Allocation Breakdown and % of investments exclude securities sold short and financial derivative instruments, if any.  |

---

Fund Information (as of December 31, 2022)<sup>(1)</sup>

---

| | |
|:---|:---|
|  Market Price | $4.73 |
|  NAV | $4.64 |
|  Premium/(Discount) to NAV | 1.94% |
|  Market Price Distribution Rate<sup>(2)</sup> | 12.18% |
|  NAV Distribution Rate<sup>(2)</sup> | 12.41% |
|  Total Effective Leverage<sup>(3)</sup> | 28.18% |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 |
|  | 6 Month\* | 1 Year | 5 Year | 10 Year | Commencement<br>of Operations<br>(04/30/03) |
| Market Price | (2.81)% | (13.84)% | 1.95% | 4.24% | 7.19% |
| NAV | 4.27% | (10.44)% | 4.82% | 9.30% | 10.17% |

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All Fund returns are net of fees and expenses and include applicable fee waivers and/or expense limitations. Absent any applicable fee waivers and/or expense limitations, performance would have been lower and there can be no assurance that any such waivers or limitations will continue in the future.

\* Cumulative return.

<sup>(1)</sup> Performance quoted represents past performance. Past performance is not a guarantee or a reliable indicator of future results. Current performance may be lower or higher than performance shown. Investment return and the principal value of an investment will fluctuate. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the sale of Fund shares. Total return, market price, NAV, market price distribution rate, and NAV distribution rate will fluctuate with changes in market conditions. The NAV presented may differ from the NAV reported for the same period in other Fund materials. Performance current to the most recent month-end is available at www.pimco.com or via (844) 33-PIMCO. Performance is calculated assuming all dividends and distributions are reinvested at prices obtained under the Fund's dividend reinvestment plan. Performance does not reflect any brokerage commissions in connection with the purchase or sale of Fund shares. 

<sup>(2)</sup> Distribution rates are not performance and are calculated by annualizing the most recent distribution per share and dividing by the NAV or market price, as applicable, as of the reported date. Distributions may be comprised of ordinary income, net capital gains, and/or a return of capital (''ROC'') of your investment in the Fund. Because the distribution rate may include a ROC, it should not be confused with yield or income. If the Fund estimates that a portion of its distribution may be comprised of amounts from sources other than net investment income in accordance with its policies and good accounting practices, the Fund will notify shareholders of the estimated composition of such distribution through a Section 19 Notice. Please refer to the most recent Section 19 Notice, if applicable, for additional information regarding the estimated composition of distributions. Please visit www.pimco.com for most recent Section 19 Notice, if applicable. Final determination of a distribution's tax character will be made on Form 1099 DIV sent to shareholders each January. 

<sup>(3)</sup> Represents total effective leverage outstanding, as a percentage of total managed assets. Total effective leverage consists of preferred shares, reverse repurchase agreements and other borrowings, credit default swap notional and floating rate notes issued in tender option bond transactions, as applicable (collectively "Total Effective Leverage"). The Fund may engage in other transactions not included in Total Effective Leverage disclosed above that may give rise to a form of leverage, including certain derivative transactions. For the purpose of calculating Total Effective Leverage outstanding as a percentage of total managed assets, total managed assets refer to total assets (including assets attributable to Total Effective Leverage that may be outstanding) minus accrued liabilities (other than liabilities representing Total Effective Leverage). 

Investment Objective and Strategy Overview

PIMCO High Income Fund's primary investment objective is to seek high current income, with capital appreciation as a secondary objective.

Fund Insights at NAV

The following affected performance (on a gross basis) during the reporting period:

» Exposure to holdings related to special situation investments, which include companies undergoing stress, distress, challenges, or significant transition, contributed to absolute performance as the securities posted positive returns.

» Exposure to emerging market debt contributed to absolute performance as the sector posted positive performance.

» Interest rate positioning, most notably short exposure at the 30-year portion of the curve, contributed to absolute performance as rates rose.

» Security selection within municipal bonds detracted from performance as select municipal securities posted negative returns.

» Exposure to U.S. residential mortgage credit detracted from absolute performance as the sector posted negative performance.

» Security selection within bank loans detracted from absolute performance as select securities posted negative returns.

» Exposure to bank capital detracted from absolute performance as the sector posted negative returns.

---

| | | |
|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022<sub>13</sub> |

---

------

PIMCO Income Strategy Fund

Symbol on NYSE - PFL

Allocation Breakdown as of December 31, 2022<sup>†</sup><sup>§</sup>

---

| | |
|:---|:---|
|  <br> Corporate Bonds & Notes | 36.1% |
|  Loan Participations and Assignments | 26.0% |
|  Short-Term Instruments | 17.5% |
|  Asset-Backed Securities | 5.2% |
|  Non-Agency Mortgage-Backed Securities | 4.6% |
|  Common Stocks | 3.2% |
|  Preferred Securities | 1.6% |
|  U.S. Government Agencies | 1.4% |
|  Warrants | 1.3% |
|  Sovereign Issues | 1.2% |
|  Municipal Bonds & Notes | 1.1% |
|  Other | 0.8% |

---

---

| | |
|:---|:---|
| <sup>†</sup> | % of Investments, at value.  |

---

---

| | |
|:---|:---|
| <sup>§</sup> | Allocation Breakdown and % of investments exclude securities sold short and financial derivative instruments, if any.  |

---

Fund Information (as of December 31, 2022)<sup>(1)</sup>

---

| | |
|:---|:---|
|  Market Price | $8.11 |
|  NAV | $8.04 |
|  Premium/(Discount) to NAV | 0.87% |
|  Market Price Distribution Rate<sup>(2)</sup> | 12.04% |
|  NAV Distribution Rate<sup>(2)</sup> | 12.15% |
|  Total Effective Leverage<sup>(3)</sup> | 33.23% |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 |
|  | 6 Month\* | 1 Year | 5 Year | 10 Year | Commencement<br>of Operations<br>(08/29/03) |
| Market Price | (4.36)% | (17.47)% | 2.86% | 5.63% | 5.85% |
| NAV | 1.66% | (13.61)% | 3.43% | 6.13% | 6.19% |

---

All Fund returns are net of fees and expenses and include applicable fee waivers and/or expense limitations. Absent any applicable fee waivers and/or expense limitations, performance would have been lower and there can be no assurance that any such waivers or limitations will continue in the future.

\* Cumulative return.

<sup>(1)</sup> Performance quoted represents past performance. Past performance is not a guarantee or a reliable indicator of future results. Current performance may be lower or higher than performance shown. Investment return and the principal value of an investment will fluctuate. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the sale of Fund shares. Total return, market price, NAV, market price distribution rate, and NAV distribution rate will fluctuate with changes in market conditions. The NAV presented may differ from the NAV reported for the same period in other Fund materials. Performance current to the most recent month-end is available at www.pimco.com or via (844) 33-PIMCO. Performance is calculated assuming all dividends and distributions are reinvested at prices obtained under the Fund's dividend reinvestment plan. Performance does not reflect any brokerage commissions in connection with the purchase or sale of Fund shares. 

<sup>(2)</sup> Distribution rates are not performance and are calculated by annualizing the most recent distribution per share and dividing by the NAV or market price, as applicable, as of the reported date. Distributions may be comprised of ordinary income, net capital gains, and/or a return of capital (''ROC'') of your investment in the Fund. Because the distribution rate may include a ROC, it should not be confused with yield or income. If the Fund estimates that a portion of its distribution may be comprised of amounts from sources other than net investment income in accordance with its policies and good accounting practices, the Fund will notify shareholders of the estimated composition of such distribution through a Section 19 Notice. Please refer to the most recent Section 19 Notice, if applicable, for additional information regarding the estimated composition of distributions. Please visit www.pimco.com for most recent Section 19 Notice, if applicable. Final determination of a distribution's tax character will be made on Form 1099 DIV sent to shareholders each January. 

<sup>(3)</sup> Represents total effective leverage outstanding, as a percentage of total managed assets. Total effective leverage consists of preferred shares, reverse repurchase agreements and other borrowings, credit default swap notional and floating rate notes issued in tender option bond transactions, as applicable (collectively "Total Effective Leverage"). The Fund may engage in other transactions not included in Total Effective Leverage disclosed above that may give rise to a form of leverage, including certain derivative transactions. For the purpose of calculating Total Effective Leverage outstanding as a percentage of total managed assets, total managed assets refer to total assets (including assets attributable to Total Effective Leverage that may be outstanding) minus accrued liabilities (other than liabilities representing Total Effective Leverage). 

Investment Objective and Strategy Overview

PIMCO Income Strategy Fund's investment objective is to seek high current income, consistent with the preservation of capital.

Fund Insights at NAV

The following affected performance (on a gross basis) during the reporting period:

» Exposure to emerging market debt contributed to absolute performance as the sector posted positive performance.

» Exposure to holdings related to special situation investments, which include companies undergoing stress, distress, challenges, or significant transition, contributed to absolute performance as the securities posted positive returns.

» Exposure to high yield corporate credit contributed to absolute performance as the sector posted positive performance.

» Exposure to U.S. residential mortgage credit detracted from absolute performance as the sector posted negative performance.

» Security selection within bank loans detracted from absolute performance as the securities posted negative returns.

» Exposure to bank capital detracted from absolute performance as the sector posted negative returns.

---

| | |
|:---|:---|
| **14** | **PIMCO CLOSED-END FUNDS** |

---

------

PIMCO Income Strategy Fund II

Symbol on NYSE - PFN

Allocation Breakdown as of December 31, 2022<sup>†</sup><sup>§</sup>

---

| | |
|:---|:---|
|  Corporate Bonds & Notes | 36.0% |
|  Loan Participations and Assignments | 24.7% |
|  Short-Term Instruments | 14.5% |
|  Non-Agency Mortgage-Backed Securities | 7.5% |
|  Asset-Backed Securities | 5.4% |
|  Common Stocks | 3.5% |
|  Preferred Securities | 2.0% |
|  Warrants | 1.5% |
|  U.S. Government Agencies | 1.4% |
|  Municipal Bonds & Notes | 1.4% |
|  Sovereign Issues | 1.2% |
|  Other | 0.9% |

---

---

| | |
|:---|:---|
| <sup>†</sup> | % of Investments, at value.  |

---

---

| | |
|:---|:---|
| <sup>§</sup> | Allocation Breakdown and % of investments exclude securities sold short and financial derivative instruments, if any.  |

---

Fund Information (as of December 31, 2022)<sup>(1)</sup>

---

| | |
|:---|:---|
|  Market Price | $7.07 |
|  NAV | $7.09 |
|  Premium/(Discount) to NAV | (0.28)% |
|  Market Price Distribution Rate<sup>(2)</sup> | 12.19% |
|  NAV Distribution Rate<sup>(2)</sup> | 12.15% |
|  Total Effective Leverage<sup>(3)</sup> | 31.22% |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 | Average Annual Total Return<sup>(1)</sup> for the period ended December 31, 2022 |
|  | 6 Month\* | 1 Year | 5 Year | 10 Year | Commencement<br>of Operations<br>(10/29/04) |
| Market Price | (5.33)% | (17.31)% | 2.54% | 5.87% | 5.04% |
| NAV | 1.93% | (13.66)% | 3.13% | 6.41% | 5.36% |

---

All Fund returns are net of fees and expenses and include applicable fee waivers and/or expense limitations. Absent any applicable fee waivers and/or expense limitations, performance would have been lower and there can be no assurance that any such waivers or limitations will continue in the future.

\* Cumulative return.

<sup>(1)</sup> Performance quoted represents past performance. Past performance is not a guarantee or a reliable indicator of future results. Current performance may be lower or higher than performance shown. Investment return and the principal value of an investment will fluctuate. Returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the sale of Fund shares. Total return, market price, NAV, market price distribution rate, and NAV distribution rate will fluctuate with changes in market conditions. The NAV presented may differ from the NAV reported for the same period in other Fund materials. Performance current to the most recent month-end is available at www.pimco.com or via (844) 33-PIMCO. Performance is calculated assuming all dividends and distributions are reinvested at prices obtained under the Fund's dividend reinvestment plan. Performance does not reflect any brokerage commissions in connection with the purchase or sale of Fund shares. 

<sup>(2)</sup> Distribution rates are not performance and are calculated by annualizing the most recent distribution per share and dividing by the NAV or market price, as applicable, as of the reported date. Distributions may be comprised of ordinary income, net capital gains, and/or a return of capital (''ROC'') of your investment in the Fund. Because the distribution rate may include a ROC, it should not be confused with yield or income. If the Fund estimates that a portion of its distribution may be comprised of amounts from sources other than net investment income in accordance with its policies and good accounting practices, the Fund will notify shareholders of the estimated composition of such distribution through a Section 19 Notice. Please refer to the most recent Section 19 Notice, if applicable, for additional information regarding the estimated composition of distributions. Please visit www.pimco.com for most recent Section 19 Notice, if applicable. Final determination of a distribution's tax character will be made on Form 1099 DIV sent to shareholders each January. 

<sup>(3)</sup> Represents total effective leverage outstanding, as a percentage of total managed assets. Total effective leverage consists of preferred shares, reverse repurchase agreements and other borrowings, credit default swap notional and floating rate notes issued in tender option bond transactions, as applicable (collectively "Total Effective Leverage"). The Fund may engage in other transactions not included in Total Effective Leverage disclosed above that may give rise to a form of leverage, including certain derivative transactions. For the purpose of calculating Total Effective Leverage outstanding as a percentage of total managed assets, total managed assets refer to total assets (including assets attributable to Total Effective Leverage that may be outstanding) minus accrued liabilities (other than liabilities representing Total Effective Leverage). 

Investment Objective and Strategy Overview

PIMCO Income Strategy Fund II's investment objective is to seek high current income, consistent with the preservation of capital.

Fund Insights at NAV

The following affected performance (on a gross basis) during the reporting period:

» Exposure to emerging market debt contributed to absolute performance as the sector posted positive performance.

» Exposure to holdings related to special situation investments, which include companies undergoing stress, distress, challenges, or significant transition, contributed to absolute performance as the securities posted positive returns.

» Exposure to high yield corporate credit contributed to absolute performance as the sector posted positive performance.

» Security selection within municipal bonds detracted from performance as municipal securities posted negative returns.

» Exposure to U.S. residential mortgage credit detracted from absolute performance as the sector posted negative performance.

» Security selection within bank loans detracted from absolute performance as the securities posted negative returns.

---

| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **15** |

---

------

Financial Highlights &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | | **Investment Operations** | **Investment Operations** | **Less Distributions to ARPS<sup>(c)</sup>** | **Less Distributions to ARPS<sup>(c)</sup>** | | **Less Distributions to Common Shareholders<sup>(d)</sup>** | **Less Distributions to Common Shareholders<sup>(d)</sup>** | **Less Distributions to Common Shareholders<sup>(d)</sup>** | **Less Distributions to Common Shareholders<sup>(d)</sup>** |
| Selected Per Share Data for the Year or Period Ended^: | **Net Asset<br>Value<br>Beginning<br>of Year<br>or Period<sup>(a)</sup>** | **Net<br>Investment<br>Income<br>(Loss)<sup>(b)</sup>** | **Net<br>Realized/<br>Unrealized<br>Gain (Loss)** | **From Net<br>Investment<br>Income** | **From Net<br>Realized<br>Capital<br>Gains** | **Net Increase<br>(Decrease)<br>in Net Assets**<br> **Applicable<br>to Common<br>Shareholders<br>Resulting<br>from<br>Operations** | **From Net<br>Investment<br>Income** | **From Net<br>Realized<br>Capital<br>Gains** | **Tax Basis<br>Return of<br>Capital** | **Total** |
|  **PIMCO Corporate & Income Opportunity Fund** |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/01/2022 - 12/31/2022+ | $11.21 | $0.68 | $(0.15) | $(0.05) | $0.00 | $0.48 | $(0.86) | $0.00 | $0.00 | $(0.86) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/01/2021 - 06/30/2022<sup>(i)</sup> | 14.40 | 1.21 | (3.22) | (0.01) | 0.00 | (2.02) | (1.32) | 0.00 | 0.00 | (1.32)<sup>(j)</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2021 | 12.44 | 1.32 | 1.78 | 0.00 | 0.00 | 3.10 | (1.22) | 0.00 | (0.34) | (1.56) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2020 | 14.66 | 1.36 | (2.41) | (0.05) | 0.00 | (1.10) | (1.59) | 0.00 | 0.00 | (1.59) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2019 | 14.80 <sup>(h)</sup> | 1.36 | 0.09 | (0.13) | 0.00 | 1.32 | (1.63) | 0.00 | 0.00 | (1.63) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2018 | 14.87 | 1.30 | 0.16 | (0.09) | 0.00 | 1.37 | (1.56) | 0.00 | 0.00 | (1.56) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2017 | 13.27 | 1.21 | 2.06 | (0.04) | 0.00 | 3.23 | (1.59) | 0.00 | (0.14) | (1.73) |
|  **PIMCO Corporate & Income Strategy Fund** |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/01/2022 - 12/31/2022+ | $11.60 | $0.61 | $(0.17) | $(0.01) | $0.00 | $0.43 | $(0.83) | $0.00 | $0.00 | $(0.83) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/01/2021 - 06/30/2022<sup>(i)</sup> | 14.54 | 1.11 | (2.93) | 0.00 | 0.00 | (1.82) | (1.24) | 0.00 | 0.00 | (1.24)<sup>(j)</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2021 | 12.76 | 1.24 | 1.77 | 0.00 | 0.00 | 3.01 | (1.35) | 0.00 | 0.00 | (1.35) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2020 | 14.94 | 1.31 | (2.07) | (0.01) | 0.00 | (0.77) | (1.41) | 0.00 | 0.00 | (1.41) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2019 | &nbsp;&nbsp;&nbsp;&nbsp;14.90 <sup>(h)</sup> | 1.22 | 0.20 | (0.05) | 0.00 | 1.37 | (1.43) | 0.00 | 0.00 | (1.43) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2018 | 15.32 | 1.20 | (0.24) | (0.03) | 0.00 | 0.93 | (1.35) | 0.00 | 0.00 | (1.35) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2017 | 14.28 | 1.12 | 1.70 | (0.01) | 0.00 | 2.81 | (1.75) | 0.00 | (0.02) | (1.77) |
|  **PIMCO High Income Fund** |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/01/2022 - 12/31/2022+ | $4.72 | $0.25 | $(0.04) | $(0.01) | $0.00 | $0.20 | $(0.29) | $0.00 | $0.00 | $(0.29) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/01/2021 - 06/30/2022<sup>(i)</sup> | 5.92 | 0.47 | (1.14) | 0.00 | 0.00 | (0.67) | (0.53) | 0.00 | 0.00 | (0.53)<sup>(j)</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2021 | 5.01 | 0.56 | 0.93 | 0.00 | 0.00 | 1.49 | (0.44) | 0.00 | (0.14) | (0.58) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2020 | 6.38 | 0.65 | (1.30) | (0.01) | 0.00 | (0.66) | (0.68) | 0.00 | (0.03) | (0.71) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2019 | 6.54 <sup>(h)</sup> | 0.61 | 0.11 | (0.03) | 0.00 | 0.69 | (0.73) | 0.00 | (0.16) | (0.89) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2018 | 6.90 | 0.62 | 0.01 | (0.02) | 0.00 | 0.61 | (0.84) | 0.00 | (0.13) | (0.97) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2017 | 6.63 | 0.67 | 0.71 | (0.01) | 0.00 | 1.37 | (0.91) | 0.00 | (0.19) | (1.10) |
|  **PIMCO Income Strategy Fund** |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/01/2022 - 12/31/2022+ | $8.39 | $0.43 | $(0.27) | $(0.04) | $0.00 | $0.12 | $(0.49) | $0.00 | $0.00 | $(0.49) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/01/2021 - 06/30/2022<sup>(i)</sup> | 10.66 | 0.75 | (2.11) | (0.02) | 0.00 | (1.38) | (0.90) | 0.00 | 0.00 | (0.90)<sup>(j)</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2021 | 9.46 | 0.91 | 1.32 | (0.02) | 0.00 | 2.21 | (0.84) | 0.00 | (0.24) | (1.08) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2020 | 11.00 | 1.01 | (1.52) | (0.04) | 0.00 | (0.55) | (0.97) | 0.00 | (0.11) | (1.08) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2019 | 11.14 <sup>(h)</sup> | 0.90 | 0.02 | (0.07) | 0.00 | 0.85 | (0.99) | 0.00 | (0.09) | (1.08) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2018 | 11.60 | 0.87 | (0.19) | (0.06) | 0.00 | 0.62 | (1.07) | 0.00 | (0.01) | (1.08) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2017 | 10.53 | 0.88 | 1.31 | (0.04) | 0.00 | 2.15 | (1.08) | 0.00 | 0.00 | (1.08) |
|  **PIMCO Income Strategy Fund II** |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/01/2022 - 12/31/2022+ | $7.38 | $&nbsp;&nbsp;&nbsp;&nbsp;0.38 | $&nbsp;&nbsp;&nbsp;&nbsp;(0.21) | $&nbsp;&nbsp;&nbsp;&nbsp;(0.03) | $&nbsp;&nbsp;&nbsp;&nbsp;0.00 | $0.14 | $(0.43) | $0.00 | $0.00 | $(0.43) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08/01/2021 - 06/30/2022<sup>(i)</sup> | 9.42 | 0.67 | (1.90) | (0.02) | 0.00 | (1.25) | (0.80) | 0.00 | 0.00 | (0.80)<sup>(j)</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2021 | 8.53 | 0.78 | 1.05 | (0.02) | 0.00 | 1.81 | (0.75) | 0.00 | (0.21) | (0.96) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2020 | 9.91 | 0.86 | (1.32) | (0.03) | 0.00 | &nbsp;&nbsp;&nbsp;&nbsp;(0.49) | (0.90) | 0.00 | (0.06) | (0.96) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2019 | 10.07 <sup>(h)</sup> | 0.83 | 0.04 | (0.05) | 0.00 | 0.82 | &nbsp;&nbsp;&nbsp;&nbsp;(1.03) | &nbsp;&nbsp;&nbsp;&nbsp;`0.00 | &nbsp;&nbsp;&nbsp;&nbsp;0.00 | &nbsp;&nbsp;&nbsp;&nbsp;(1.03) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2018 | 10.33 | 0.79 | (0.05) | (0.04) | 0.00 | 0.70 | (0.96) | 0.00 | 0.00 | (0.96) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 07/31/2017 | 9.42 | 0.80 | 1.10 | (0.03) | 0.00 | 1.87 | (0.96) | 0.00 | 0.00 | (0.96) |

---

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| | | |
|:---|:---|:---|
| **16** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | | **Common Share** | **Common Share** | **Common Share** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** | **Ratios/Supplemental Data** |
| | | | | | | | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** | **Ratios to Average Net Assets Applicable to Common Shareholders<sup>(f)</sup>** |  | |
| **Increase<br>resulting from<br>Common Share<br>offering** | **Offering**<br> **Cost<br>Charged to<br>Paid in Capital** | **Increase<br>Resulting from<br>Tender of<br>ARPS<sup>(c)</sup>** | **Net Asset<br>Value End of<br>Year or<br>Period<sup>(a)</sup>** | **Market Price<br>End of Year<br>or Period** | **Total<br>Investment<br>Return<sup>(e)</sup>** | **Net Assets<br>Applicable<br>to Common<br>Shareholders<br>End of Year<br>(000s)** | **Expense<sup>(g)</sup>** |  | **Expenses<br>Excluding<br>Waivers<sup>(g)</sup>** |  | **Expenses<br>Excluding<br>Interest<br>Expense** |  | **&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;<br>Expenses<br>Excluding<br>Interest<br>Expense<br>and<br>Waivers** |  | **Net<br>Investment<br>Income (Loss)** |  | **Portfolio<br>Turnover<br>Rate** |
| $&nbsp;&nbsp;&nbsp;&nbsp;0.10 | $0.00 | $&nbsp;&nbsp;&nbsp;&nbsp;0.00 | $&nbsp;&nbsp;&nbsp;&nbsp;10.93 | $&nbsp;&nbsp;&nbsp;&nbsp;12.01 | 3.06% | $1423827 | 2.16 | %\* | 2.16 | %\* | 0.77 | %\* | 0.77 | %\* | 11.95 | %\* | 19% |
| 0.15 | 0.00 | 0.00 | 11.21 | 12.51 | (33.71) | 1361439 | 1.13 | \* | 1.13 | \* | 0.77 | \* | 0.77 | \* | 9.86 |  | 58 |
| 0.42 | &nbsp;&nbsp;&nbsp;&nbsp;(0.00) | 0.00 | 14.40 | 20.56 | 46.75 | 1643538 | 1.06 |  | 1.06 |  | 0.76 |  | 0.76 |  | 9.60 |  | 58 |
| 0.47 | 0.00 | 0.00 | 12.44 | 15.34 | (8.77) | 1248837 | 1.30 |  | 1.30 |  | 0.82 |  | 0.82 |  | 10.20 |  | 34 |
| 0.15 | 0.00 | 0.02 | 14.66 | 18.60 | 14.48 | 1291233 | 1.35 |  | 1.35 |  | 0.80 |  | 0.80 |  | 9.44 |  | 22 |
| 0.12 | 0.00 | 0.00 | 14.80 <sup>(h)</sup> | 17.95 | 16.78 | 1219515 | 1.26 |  | 1.26 |  | 0.81 |  | 0.81 |  | 8.73 |  | 19 |
| 0.10 | 0.00 | 0.00 | 14.87 | 16.92 | 29.18 | 1140768 | 1.08 |  | 1.08 |  | 0.83 |  | 0.83 |  | 8.68 |  | 39 |
| $0.06 | $0.00 | $0.00 | $11.26 | $11.85 | 0.30% | $521650 | 2.35 | %\* | 2.35 | %\* | 0.87 | %\* | 0.87 | %\* | 10.40 | %\* | 17% |
| 0.12 | 0.00 | 0.00 | 11.60 | 12.65 | (27.59) | 509542 | 1.22 | \* | 1.22 | \* | 0.88 | \* | 0.88 | \* | 8.89 | \* | 47 |
| 0.12 | (0.00) | 0.00 | 14.54 | 18.93 | 34.41 | 605830 | 1.15 |  | 1.15 |  | 0.87 |  | 0.87 |  | 8.95 |  | 48 |
| N/A | N/A | 0.00 | 12.76 | 15.29 | (7.72) | 509488 | 1.57 |  | 1.57 |  | 0.87 |  | 0.87 |  | 9.57 |  | 31 |
| N/A | N/A | 0.10 | 14.94 | 18.08 | 9.20 | 591931 | 1.60 |  | 1.60 |  | 0.94 |  | 0.94 |  | 8.39 |  | 18 |
| N/A | N/A | 0.00 | 14.90 <sup>(h)</sup> | 18.09 | 9.61 | 586592 | 1.36 |  | 1.36 |  | 0.94 |  | 0.94 |  | 7.97 |  | 20 |
| N/A | N/A | 0.00 | 15.32 | 17.92 | 30.63 | 599266 | 1.17 |  | 1.17 |  | 0.93 |  | 0.93 |  | 7.65 |  | 38 |
| $0.01 | $0.00 | $0.00 | $4.64 | $4.73 | (2.81)% | $647071 | 2.54 | %\* | 2.54 | %\* | 0.84 | %\* | 0.84 | %\* | 10.26 | %\* | 16% |
| 0.00 | 0.00 | 0.00 | 4.72 | 5.17 | (18.39) | 640448 | 1.18 | \* | 1.18 | \* | 0.86 | \* | 0.86 | \* | 9.30 | \* | 37 |
| N/A | N/A | 0.00 | 5.92 | 6.95 | 47.82 | 792773 | 1.14 |  | 1.14 |  | 0.86 |  | 0.86 |  | 9.96 |  | 60 |
| N/A | N/A | 0.00 | 5.01 | 5.18 | (27.55) | 664144 | 1.73 |  | 1.73 |  | 0.86 |  | 0.86 |  | 11.42 |  | 40 |
| N/A | N/A | 0.04 | 6.38 | 8.03 | 3.57 | 835988 | 1.86 |  | 1.86 |  | 0.91 |  | 0.91 |  | 9.74 |  | 20 |
| N/A | N/A | 0.00 | 6.54 <sup>(h)</sup> | 8.67 | 13.13 | 847052 | 1.48 |  | 1.48 |  | 0.90 |  | 0.90 |  | 9.30 |  | 27 |
| N/A | N/A | 0.00 | 6.90 | 8.71 | (1.45) | 884912 | 1.25 |  | 1.25 |  | 0.90 |  | 0.90 |  | 10.08 |  | 32 |
| $0.02 | $0.00 | $0.00 | $8.04 | $8.11 | (4.36)% | $296426 | 2.68 | %\* | 2.68 | %\* | 1.29 | %\* | 1.29 | %\* | 10.21 | %\* | 20% |
| 0.01 | 0.00 | 0.00 | 8.39 | 8.99 | (21.16) | 297796 | 1.64 | \* | 1.64 | \* | 1.37 | \* | 1.37 | \* | 8.31 | \* | 47 |
| 0.07 | 0.00 | 0.00 | 10.66 | 12.47 | 38.31 | 365580 | 1.62 |  | 1.62 |  | 1.36 |  | 1.36 |  | 8.81 |  | 42 |
| 0.09 | (0.00) | 0.00 | 9.46 | 9.95 | (7.65) | 295167 | 1.69 |  | 1.69 |  | 1.21 |  | 1.21 |  | 10.03 |  | 21 |
| 0.06 | 0.00 | 0.03 | 11.00 | 11.99 | 8.10 | 305453 | 1.69 |  | 1.69 |  | 1.18 |  | 1.18 |  | 8.39 |  | 17 |
| N/A | N/A | 0.00 | 11.14 <sup>(h)</sup> | 12.23 | 10.37 | 284677 | 1.48 |  | 1.48 |  | 1.17 |  | 1.17 |  | 7.67 |  | 21 |
| N/A | N/A | 0.00 | 11.60 | 12.17 | 28.11 | 294525 | 1.35 |  | 1.35 |  | 1.17 |  | 1.17 |  | 8.01 |  | 40 |
| $0.01 | $0.00 | $0.00 | $7.10 | $7.07 | (5.33)% | $575456 | 2.45 | %\* | 2.45 | %\* | 1.23 | %\* | 1.23 | %\* | 10.24 | %\* | 18% |
| 0.01 | 0.00 | 0.00 | 7.38 | 7.92 | (21.31) | 581955 | 1.54 | \* | 1.54 | \* | 1.29 | \* | 1.29 | \* | 8.32 | \* | 45 |
| 0.04 | 0.00 | 0.00 | 9.42 | 11.01 | 37.03 | 723617 | 1.54 |  | 1.54 |  | 1.29 |  | 1.29 |  | 8.58 |  | 38 |
| 0.07 | (0.00) | 0.00 | 8.53 | 8.88 | (7.75) | 605851 | 1.62 |  | 1.62 |  | 1.15 |  | 1.15 |  | 9.49 |  | 21 |
| 0.04 | 0.00 | 0.01 | 9.91 | 10.70 | 11.03 | 632927 | 1.66 |  | 1.66 |  | 1.12 |  | 1.12 |  | 8.57 |  | 17 |
| N/A | N/A | 0.00 | 10.07 <sup>(h)</sup> | 10.70 | 9.19 | 600890 | 1.41 |  | 1.41 |  | 1.10 |  | 1.10 |  | 7.79 |  | 18 |
| N/A | N/A | 0.00 | 10.33 | 10.76 | 26.32 | 612310 | 1.26 |  | 1.26 |  | 1.09 |  | 1.09 |  | 8.15 |  | 26 |

---

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **17** |

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------

Financial Highlights (Cont.)

---

| | | | | |
|:---|:---|:---|:---|:---|
| Ratios/Supplemental Data |  |  |  |  |
|  | **ARPS** | **ARPS** | **ARPS** | **ARPS** |
| Selected Per Share Data for the Year or Period Ended^: | **Total Amount<br>Outstanding** | **Asset Coverage per<br>Preferred Share<sup>(1)</sup>** | **Involuntary<br>Liquidating<br>Preference per<br>Preferred Share<sup>(2)</sup>** | **Average<br>Market Value<br>per ARPS<sup>(3)</sup>** |
|  **PIMCO Corporate & Income Opportunity Fund** |  |  |  |  |
| 07/1/2022 - 12/31/2022+ | $212650000 | $192163 | $25000 | N/A |
| 08/01/2021 - 06/30/2022<sup>(i)</sup> | 212650000 | 184988 | 25000 | N/A |
| 07/31/2021 | 212650000 | 218218 | 25000 | N/A |
| 07/31/2020 | 212650000 | 171815 | 25000 | N/A |
| 07/31/2019 | 212650000 | 176730 | 25000 | N/A |
| 07/31/2018 | 237950000 | 153072 | 25000 | N/A |
| 07/31/2017 | 237950000 | 144819 | 25000 | N/A |
|  **PIMCO Corporate & Income Strategy Fund** |  |  |  |  |
| 07/1/2022 - 12/31/2022+ | $23525000 | $578738 | $&nbsp;&nbsp;&nbsp;&nbsp;25000 | N/A |
| 08/01/2021 - 06/30/2022<sup>(i)</sup> | 23525000 | 566333 | 25000 | N/A |
| 07/31/2021 | 23525000 | 668805 | 25000 | N/A |
| 07/31/2020 | 23525000 | 566423 | 25000 | N/A |
| 07/31/2019 | 23525000 | 653838 | 25000 | N/A |
| 07/31/2018 | 55525000 | 289023 | 25000 | N/A |
| 07/31/2017 | 55525000 | 294755 | 25000 | N/A |
|  **PIMCO High Income Fund** |  |  |  |  |
| 07/1/2022 - 12/31/2022+ | $58050000 | $303363 | $25000 | N/A |
| 08/01/2021 - 06/30/2022<sup>(i)</sup> | 58050000 | 300723 | 25000 | N/A |
| 07/31/2021 | 58050000 | 366413 | 25000 | N/A |
| 07/31/2020 | 58050000 | 311018 | 25000 | N/A |
| 07/31/2019 | 58050000 | 384900 | 25000 | N/A |
| 07/31/2018 | 101975000 | 232587 | 25000 | N/A |
| 07/31/2017 | 101975000 | 241894 | 25000 | N/A |
|  **PIMCO Income Strategy Fund** |  |  |  |  |
| 07/1/2022 - 12/31/2022+ | $45200000 | $188753 | $25000 | N/A |
| 08/01/2021 - 06/30/2022<sup>(i)</sup> | 45200000 | 189645 | 25000 | N/A |
| 07/31/2021 | 45200000 | 227165 | 25000 | N/A |
| 07/31/2020 | 45200000 | 188225 | 25000 | N/A |
| 07/31/2019 | 45200000 | 193873 | 25000 | N/A |
| 07/31/2018 | 51275000 | 163725 | 25000 | N/A |
| 07/31/2017 | 51275000 | 168552 | 25000 | N/A |
|  **PIMCO Income Strategy Fund II** |  |  |  |  |
| 07/1/2022 - 12/31/2022+ | $87425000 | $189330 | $25000 | N/A |
| 08/01/2021 - 06/30/2022<sup>(i)</sup> | 87425000 | 191350 | 25000 | N/A |
| 07/31/2021 | 87425000 | 231880 | 25000 | N/A |
| 07/31/2020 | 87425000 | 198210 | 25000 | N/A |
| 07/31/2019 | 87425000 | 205928 | 25000 | N/A |
| 07/31/2018 | 92450000 | 187429 | 25000 | N/A |
| 07/31/2017 | 92450000 | 190527 | 25000 | N/A |

---

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| | |
|:---|:---|
| ^ | A zero balance may reflect actual amounts rounding to less than $0.01 or 0.01%.  |

---

+ Unaudited.

\* Annualized, except for organizational expense, if any.

<sup>(a)</sup> Includes adjustments required by U.S. GAAP and may differ from net asset values and performance reported elsewhere by the Funds.

<sup>(b)</sup> Per share amounts based on average number of common shares outstanding during the year or period. 

<sup>(c)</sup> Auction Rate Preferred Shareholders ("ARPS"). See Note 14, Auction Rate Preferred Shares, in the Notes to Financial Statements for more information.

<sup>(d)</sup> The tax characterization of distributions is determined in accordance with Federal income tax regulations. The actual tax characterization of distributions paid is determined at the end of the fiscal year. See Note 2, Distributions — Common Shares, in the Notes to Financial Statements for more information. 

<sup>(e)</sup> Total investment return is calculated assuming a purchase of a common share at the market price on the first day and a sale of a common share at the market price on the last day of each year or period reported. Dividends and distributions, if any, are assumed, for purposes of this calculation, to be reinvested at prices obtained under the Funds' dividend reinvestment plan. Total investment return does not reflect brokerage commissions in connection with the purchase or sale of Fund shares. 

---

| | | |
|:---|:---|:---|
| **18** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

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------

&nbsp;&nbsp;&nbsp;&nbsp;

<sup>(e)</sup> Total investment return is calculated assuming a purchase of a common share at the market price on the first day and a sale of a common share at the market price on the last day of each year or period reported. Dividends and distributions, if any, are assumed, for purposes of this calculation, to be reinvested at prices obtained under the Funds' dividend reinvestment plan. Total investment return does not reflect brokerage commissions in connection with the purchase or sale of Fund shares. 

<sup>(f)</sup> Calculated on the basis of income and expenses applicable to both common and preferred shares relative to the average net assets of common shareholders. The expense ratio and net investment income do not reflect the effects of dividend payments to preferred shareholders.

<sup>(g)</sup> Ratio includes interest expense which primarily relates to participation in borrowing and financing transactions. See Note 5, Borrowings and Other Financing Transactions, in the Notes to Financial Statements for more information.

<sup>(h)</sup> The NAV presented may differ from the NAV reported for the same period in other Fund materials.

<sup>(i)</sup> Fiscal year end changed from July 31<sup>st</sup> to June 30<sup>th</sup>.

<sup>(j)</sup> Total distributions for the period ended June 30, 2022 may be lower than prior fiscal years due to fiscal year end change resulting in a reduction of the amount of days in the period ended June 30, 2022. 

<sup>1</sup> "Asset Coverage per Preferred Share" means the ratio that the value of the total assets of the Fund, less all liabilities and indebtedness not represented by ARPS, bears to the aggregate of the involuntary liquidation preference of ARPS, expressed as a dollar amount per ARPS.

<sup>2</sup> "Involuntary Liquidating Preference" means the amount to which a holder of ARPS would be entitled upon the involuntary liquidation of the Fund in preference to the Common Shareholders, expressed as a dollar amount per Preferred Share.

<sup>3</sup> The ARPS have no readily ascertainable market value. Auctions for the ARPS have failed since February 2008, there is currently no active trading market for the ARPS and the Fund is not able to reliably estimate what their value would be in a third-party market sale. The liquidation value of the ARPS represents its liquidation preference, which approximates fair value of the shares less any accumulated unpaid dividends. See Note 14, Auction-Rate Preferred Shares, in the notes to Financial Statements for more information.

---

| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **19** |

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------

---

| | | | |
|:---|:---|:---|:---|
| Statements of Assets and Liabilities |  | December 31, 2022 | (Unaudited) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| (Amounts in thousands<sup>†</sup>, except per share amounts) | **PIMCO**<br> **Corporate &<br>Income**<br> **Opportunity**<br> **Fund** | **PIMCO**<br> **Corporate &<br>Income**<br> **Strategy**<br> **Fund** | **PIMCO High<br>Income Fund** | **PIMCO Income<br>Strategy**<br> **Fund** | **PIMCO Income<br>Strategy**<br> **Fund II** |
|  **Assets:** |  |  |  |  |  |
|  *Investments, at value* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Investments in securities\* | $2029050 | $690522 | $846141 | $420231 | $789643 |
|  *Financial Derivative Instruments* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Exchange-traded or centrally cleared | 2110 | 813 | 2048 | 437 | 880 |
| &nbsp;&nbsp;&nbsp;&nbsp; Over the counter | 2484 | 181 | 100 | 69 | 168 |
|  Cash | 0 | 0 | 0 | 15 | 24 |
|  Deposits with counterparty | 75901 | 25617 | 25940 | 14505 | 25583 |
|  Foreign currency, at value | 6875 | 1816 | 1315 | 1257 | 3663 |
|  Receivable for investments sold | 97729 | 19762 | 18035 | 1864 | 8705 |
|  Receivable for TBA investments sold | 0 | 0 | 89 | 0 | 0 |
|  Receivable for Fund shares sold | 1198 | 677 | 0 | 0 | 0 |
|  Interest and/or dividends receivable | 36642 | 13261 | 14516 | 6855 | 13042 |
|  Other assets | 2555 | 1691 | 2605 | 1074 | 1501 |
|  **Total Assets** | 2254544 | 754340 | 910789 | 446307 | 843209 |
|  **Liabilities:** |  |  |  |  |  |
|  *Borrowings & Other Financing Transactions* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Payable for reverse repurchase agreements | $460193 | $175886 | $179422 | $88008 | $144098 |
|  *Financial Derivative Instruments* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Exchange-traded or centrally cleared | 1559 | 658 | 1602 | 468 | 900 |
| &nbsp;&nbsp;&nbsp;&nbsp; Over the counter | 9460 | 1252 | 1745 | 831 | 1697 |
|  Payable for investments purchased | 94087 | 18180 | 7966 | 7358 | 20129 |
|  Payable for TBA investments purchased | 0 | 0 | 176 | 0 | 0 |
|  Payable for unfunded loan commitments | 17963 | 1252 | 1604 | 2825 | 1512 |
|  Deposits from counterparty | 17529 | 6252 | 5618 | 1801 | 5411 |
|  Distributions payable to common shareholders | 15328 | 5178 | 6693 | 3000 | 5819 |
|  Distributions payable to auction rate preferred shareholders | 292 | 26 | 64 | 55 | 121 |
|  Overdraft due to custodian | 612 | 79 | 291 | 0 | 0 |
|  Accrued management fees | 966 | 402 | 487 | 335 | 607 |
|  Accrued taxes payable | 78 | 0 | 0 | 0 | 34 |
|  **Total Liabilities** | 618067 | 209165 | 205668 | 104681 | 180328 |
|  **Auction Rate Preferred Shares<sup>^</sup>** | 212650 | 23525 | 58050 | 45200 | 87425 |
|  **Net Assets Applicable to Common Shareholders** | $1423827 | $521650 | $647071 | $296426 | $575456 |
|  **Net Assets Applicable to Common Shareholders Consist of:** |  |  |  |  |  |
|  Par value <sup>^^</sup> | $1 | $0 | $1 | $0 | $1 |
|  Paid in capital in excess of par | 1946786 | 690196 | &nbsp;&nbsp;&nbsp;&nbsp;1004655 | 402602 | 799619 |
|  Distributable earnings (accumulated loss) | (522960) | &nbsp;&nbsp;&nbsp;&nbsp;(168546) | (357585) | &nbsp;&nbsp;&nbsp;&nbsp;(106176) | &nbsp;&nbsp;&nbsp;&nbsp;(224164) |
|  **Net Assets Applicable to Common Shareholders** | $1423827 | $521650 | $647071 | $296426 | $575456 |
|  **Net Asset Value Per Common Share<sup>(a)</sup>** | $10.93 | $11.26 | $4.64 | $8.04 | $7.10 |
|  **Common Shares Outstanding** | 130294 | 46319 | 139463 | 36849 | 81045 |
|  **Auction Rate Preferred Shares Issued and Outstanding** | 9 | 1 | 2 | 2 | 3 |
|  Cost of investments in securities | $&nbsp;&nbsp;&nbsp;&nbsp;2433056 | $822616 | $1046627 | $503877 | $949134 |
|  Cost of foreign currency held | $6856 | $1877 | $1512 | $1293 | $3725 |
|  Cost or premiums of financial derivative instruments, net | $(62126) | $(9603) | $54492 | $(2170) | $2491 |
|  \* Includes repurchase agreements of: | $112093 | $59330 | $98910 | $62195 | $96917 |

---

---

| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

---

---

| | |
|:---|:---|
| <sup>^</sup> | ($0.00001 par value and $25,000 liquidation preference per share)  |

---

---

| | |
|:---|:---|
| <sup>^^</sup> | ($0.00001 per share)  |

---

<sup>(a)</sup> Includes adjustments required by U.S. GAAP and may differ from net asset values and performance reported elsewhere by the Funds.

---

| | | |
|:---|:---|:---|
| **20** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

Statements of Operations &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Six Months Ended December 31, 2022 (Unaudited) |  |  |  |  |  |
| (Amounts in thousands<sup>†</sup>) | **PIMCO**<br> **Corporate &**<br> **Income**<br> **Opportunity**<br> **Fund** | **PIMCO**<br> **Corporate &**<br> **Income**<br> **Strategy**<br> **Fund** | **PIMCO High**<br> **Income Fund** | **PIMCO Income<br>Strategy**<br> **Fund** | **PIMCO Income<br>Strategy**<br> **Fund II** |
|  **Investment Income:** |  |  |  |  |  |
|  Interest, net of foreign taxes\* | $&nbsp;&nbsp;&nbsp;&nbsp;100406 | $33645 | $41703 | $19541 | $37304 |
|  Dividends | 691 | 258 | 698 | 173 | 307 |
| &nbsp;&nbsp;&nbsp;&nbsp; Total Income | 101097 | 33903 | 42401 | 19714 | 37611 |
|  **Expenses:** |  |  |  |  |  |
|  Management fees | 5361 | 2252 | 2741 | 1925 | 3544 |
|  Trustee fees and related expenses | 13 | 2 | 2 | 1 | 2 |
|  Interest expense | 9973 | 3941 | 5643 | 2127 | 3623 |
|  Auction agent fees and commissions | 104 | 9 | 24 | 20 | 48 |
|  Auction rate preferred shares related expenses | 1 | 22 | 13 | 14 | 29 |
|  Miscellaneous expense | 12 | 9 | 10 | 4 | 7 |
| &nbsp;&nbsp;&nbsp;&nbsp; Total Expenses | 15464 | 6235 | 8433 | 4091 | 7253 |
|  **Net Investment Income (Loss)** | 85633 | 27668 | 33968 | 15623 | 30358 |
|  **Net Realized Gain (Loss):** |  |  |  |  |  |
|  Investments in securities | (3149) | 8502 | 33542 | 2208 | 5227 |
|  Exchange-traded or centrally cleared financial derivative instruments | 41964 | 29867 | 38713 | 2527 | 5503 |
|  Over the counter financial derivative instruments | (8223) | 2171 | 3400 | 2674 | 4025 |
|  Foreign currency | (2760) | (1773) | (150) | (214) | (384) |
|  **Net Realized Gain (Loss)** | 27832 | 38767 | 75505 | 7195 | 14371 |
|  **Net Change in Unrealized Appreciation (Depreciation):** |  |  |  |  |  |
|  Investments in securities | (23367) | (19216) | (46703) | (13948) | (23157) |
|  Exchange-traded or centrally cleared financial derivative instruments | (15838) | (21882) | (28175) | 68 | (1968) |
|  Over the counter financial derivative instruments | (1012) | (2623) | (4137) | (2257) | (3992) |
|  Short sales | (11) | 0 | 0 | 0 | 0 |
|  Foreign currency assets and liabilities | (8684) | (3164) | (2179) | (926) | (1629) |
|  **Net Change in Unrealized Appreciation (Depreciation)** | (48912) | &nbsp;&nbsp;&nbsp;&nbsp;(46885) | &nbsp;&nbsp;&nbsp;&nbsp;(81194) | &nbsp;&nbsp;&nbsp;&nbsp;(17063) | &nbsp;&nbsp;&nbsp;&nbsp;(30746) |
|  **Net Increase (Decrease) in Net Assets Resulting from Operations** | $64553 | $19550 | $28279 | $5755 | $13983 |
|  **Distributions on Auction Rate Preferred Shares from Net Investment Income and/or Realized Capital Gains** | $(6170) | $(547) | $(1347) | $(1292) | $(2497) |
|  **Net Increase (Decrease) in Net Assets Applicable to Common Shareholders Resulting from Operations** | $58383 | $19003 | $26932 | $4463 | $11486 |
|  \* Foreign tax withholdings - Interest | $76 | $27 | $36 | $18 | $35 |

---

---

| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

---

---

| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **21** |

---

------

Statements of Changes in Net Assets &nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **PIMCO**<br> **Corporate & Income Opportunity Fund** | **PIMCO**<br> **Corporate & Income Opportunity Fund** | **PIMCO**<br> **Corporate & Income Opportunity Fund** | **PIMCO**<br> **Corporate & Income Strategy Fund** | **PIMCO**<br> **Corporate & Income Strategy Fund** | **PIMCO**<br> **Corporate & Income Strategy Fund** |
| (Amounts in thousands<sup>†</sup>) | **Six Months Ended**<br> **December 31, 2022**<br> (Unaudited) | **Period from**<br> **August 1, 2021 to**<br> **June 30, 2022<sup>(a)</sup>** | **Year Ended**<br> **July 31, 2021** | **Six Months Ended**<br> **December 31, 2022**<br> (Unaudited) | **Period from**<br> **August 1, 2021 to**<br> **June 30, 2022<sup>(a)</sup>** | **Year Ended**<br> **July 31, 2021** |
|  **Increase (Decrease) in Net Assets from:** |  |  |  |  |  |  |
|  **Operations:** |  |  |  |  |  |  |
|  Net investment income (loss) | $85633 | $142611 | $143594 | $27668 | $47576 | $50459 |
|  Net realized gain (loss) | 27832 | 127805 | (30612) | 38767 | 55173 | (25010) |
|  Net change in unrealized appreciation (depreciation) | (48912) | (516355) | 217812 | (46885) | (183070) | 95304 |
|  **Net Increase (Decrease) in Net Assets Resulting from Operations** | 64553 | (245939) | 330794 | 19550 | (80321) | 120753 |
|  Distributions on auction rate preferred shares from net investment income and/or realized capital gains | (6170) | (997) | (318) | (547) | (87) | (27) |
|  **Net Increase (Decrease) in Net Assets Applicable to Common Shareholders Resulting from Operations** | 58383 | (246936) | 330476 | 19003 | (80408) | 120726 |
|  **Distributions to Common Shareholders:** |  |  |  |  |  |  |
|  From net investment income and/or net realized capital gains | (108869) | (154695) | (133020) | (37341) | (52821) | (54756) |
|  Tax basis return of capital | 0 | 0 | (36889) | 0 | 0 | 0 |
|  **Total Distributions to Common Shareholders<sup>(b)</sup>** | (108869) | (154695) | (169909) | (37341) | (52821) | (54756) |
|  **Common Share Transactions\*:** |  |  |  |  |  |  |
|  Net proceeds from at-the-market offering | 98900 | 99728 | 213794 | 26348 | 31500 | 25618 |
|  Net at-the-market offering costs | 0 | 102 | 88 | 0 | 149 | (46) |
|  Issued as reinvestment of distributions | 13974 | 19702 | 20252 | 4098 | 5292 | 4800 |
|  **Total increase (decrease) resulting from common share transactions** | 112874 | 119532 | 234134 | 30446 | 36941 | 30372 |
|  **Total increase (decrease) in net assets applicable to common shareholders** | 62388 | (282099) | 394701 | 12108 | (96288) | 96342 |
|  **Net Assets Applicable to Common Shareholders:** |  |  |  |  |  |  |
|  Beginning of year or period | 1361439 | 1643538 | 1248837 | 509542 | 605830 | 509488 |
|  End of year or period | $&nbsp;&nbsp;&nbsp;&nbsp;1423827 | $&nbsp;&nbsp;&nbsp;&nbsp;1361439 | $&nbsp;&nbsp;&nbsp;&nbsp;1643538 | $&nbsp;&nbsp;&nbsp;&nbsp;521650 | $&nbsp;&nbsp;&nbsp;&nbsp;509542 | $&nbsp;&nbsp;&nbsp;&nbsp;605830 |
|  **\* Common Share Transactions:** |  |  |  |  |  |  |
|  Shares sold | 7677 | 6129 | 12480 | 2038 | 1932 | 1454 |
|  Shares issued as reinvestment of distributions | 1149 | 1229 | 1205 | 339 | 333 | 297 |
|  Net increase (decrease) in common shares outstanding | 8826 | 7358 | 13685 | 2377 | 2265 | 1751 |

---

---

| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

---

<sup>(a)</sup> Fiscal year end changed from July 31st to June 30th.

<sup>(b)</sup> The tax characterization of distributions is determined in accordance with Federal income tax regulations. The actual tax characterization of distributions paid is determined at the end of the fiscal year. See Note 2, Distributions — Common Shares, in the Notes to Financial Statements for more information. 

---

| | | |
|:---|:---|:---|
| **22** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **PIMCO**<br> **High Income Fund** | **PIMCO**<br> **High Income Fund** | **PIMCO**<br> **High Income Fund** | **PIMCO**<br> **Income Strategy Fund** | **PIMCO**<br> **Income Strategy Fund** | **PIMCO**<br> **Income Strategy Fund** | **PIMCO**<br> **Income Strategy Fund II** | **PIMCO**<br> **Income Strategy Fund II** | **PIMCO**<br> **Income Strategy Fund II** |
| **Six Months Ended**<br> **December 31, 2022**<br> (Unaudited) | **Period from**<br> **August 1, 2021 to**<br> **June 30, 2022<sup>(a)</sup>** | **Year Ended**<br> **July 31, 2021** | **Six Months Ended**<br> **December 31, 2022**<br> (Unaudited) | **Period from**<br> **August 1, 2021 to**<br> **June 30, 2022<sup>(a)</sup>** | **Year Ended**<br> **July 31, 2021** | **Six Months Ended**<br> **December 31, 2022**<br> (Unaudited) | **Period from**<br> **August 1, 2021 to**<br> **June 30, 2022<sup>(a)</sup>** | **Year Ended**<br> **July 31, 2021** |
| $33968 | $63684 | $74602 | $15623 | $26309 | $29956 | $30358 | $52001 | $58329 |
| 75505 | 104357 | (26302) | 7195 | 22077 | &nbsp;&nbsp;&nbsp;&nbsp;(12033) | 14371 | 77080 | (26509) |
| &nbsp;&nbsp;&nbsp;&nbsp;(81194) | &nbsp;&nbsp;&nbsp;&nbsp;(258669) | &nbsp;&nbsp;&nbsp;&nbsp;149376 | &nbsp;&nbsp;&nbsp;&nbsp;(17063) | &nbsp;&nbsp;&nbsp;&nbsp;(96771) | 55184 | &nbsp;&nbsp;&nbsp;&nbsp;(30746) | &nbsp;&nbsp;&nbsp;&nbsp;(226310) | &nbsp;&nbsp;&nbsp;&nbsp;102442 |
| 28279 | (90628) | 197676 | 5755 | (48385) | 73107 | 13983 | (97229) | 134262 |
| (1347) | (217) | (69) | (1292) | (726) | (718) | (2497) | (1396) | (1388) |
| 26932 | (90845) | 197607 | 4463 | (49111) | 72389 | 11486 | (98625) | 132874 |
| (39642) | (71078) | (57461) | (17766) | (31501) | (27617) | (34497) | (62269) | (55505) |
| 0 | 0 | (19329) | 0 | 0 | (8099) | 0 | 0 | (15939) |
| (39642) | (71078) | (76790) | (17766) | (31501) | (35716) | (34497) | (62269) | (71444) |
| 14912 | 1990 | 0 | 10184 | 9688 | 30494 | 12888 | 12114 | 48744 |
| 0 | 0 | 0 | 0 | 13 | 60 | 0 | 38 | 63 |
| 4421 | 7608 | 7812 | 1749 | 3127 | 3186 | 3624 | 7080 | 7529 |
| &nbsp;&nbsp;&nbsp;&nbsp;<br>19333 | 9598 | 7812 | 11933 | 12828 | 33740 | 16512 | 19232 | 56336 |
| &nbsp;&nbsp;&nbsp;&nbsp;<br>6623 | (152325) | 128629 | (1370) | (67784) | 70413 | (6499) | (141662) | 117766 |
| 640448 | 792773 | 664144 | 297796 | 365580 | 295167 | 581955 | 723617 | 605851 |
| $&nbsp;&nbsp;&nbsp;&nbsp;647071 | $640448 | $792773 | $296426 | $297796 | $365580 | $575456 | $581955 | $723617 |
| 2982 | 345 | 0 | 1134 | 925 | 2766 | 1664 | 1259 | 4997 |
| 926 | 1306 | 1349 | 208 | 301 | 297 | 492 | 774 | 800 |
| 3908 | 1651 | 1349 | 1342 | 1226 | 3063 | 2156 | 2033 | 5797 |

---

---

| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **23** |

---

------

Statements of Cash Flows &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Six Months Ended December 31, 2022 (Unaudited) |  |  |  |  |  |
| (Amounts in thousands<sup>†</sup>) | **PIMCO<br>Corporate &<br>Income<br>Opportunity<br>Fund** | **PIMCO<br>Corporate &<br>Income<br>Strategy<br>Fund** | **PIMCO High<br>Income<br>Fund** | **PIMCO Income<br>Strategy<br>Fund** | **PIMCO Income<br>Strategy<br>Fund II** |
|  **Cash Flows Provided by (Used for) Operating Activities:** |  |  |  |  |  |
|  Net increase (decrease) in net assets resulting from operations | $64553 | $19550 | $28279 | $5755 | $13983 |
|  **Adjustments to Reconcile Net Increase (Decrease) in Net Assets from Operations to Net Cash Provided by (Used for) Operating Activities:** |  |  |  |  |  |
|  Purchases of long-term securities | (404798) | (117673) | &nbsp;&nbsp;&nbsp;&nbsp;(134966) | (71858) | (128994) |
|  Proceeds from sales of long-term securities | 622551 | 213850 | 259249 | 102729 | 199933 |
| (Purchases) Proceeds from sales of short-term portfolio investments, net | 1368 | (24842) | (61354) | (42099) | (54190) |
| (Increase) decrease in deposits with counterparty | 23116 | 15961 | 9817 | 5198 | 8640 |
| (Increase) decrease in receivable for investments sold | (12921) | 7348 | 1075 | 7413 | 13768 |
| (Increase) decrease in interest and/or dividends receivable | (2785) | (2044) | (1247) | (775) | (1409) |
|  Proceeds from (Payments on) exchange-traded or centrally cleared financial derivative instruments | 23706 | 7036 | 8947 | 2561 | 3659 |
|  Proceeds from (Payments on) over the counter financial derivative instruments | (7318) | 2171 | 3400 | 2674 | 3991 |
| (Increase) decrease in other assets | (1851) | (1056) | (2592) | (538) | (1117) |
|  Increase (decrease) in payable for investments purchased | 2311 | (8588) | (23408) | (7367) | (7528) |
|  Increase (decrease) in payable for unfunded loan commitments | (10544) | (3348) | (4501) | (2314) | (4040) |
|  Increase (decrease) in deposits from counterparty | 9654 | 900 | 2865 | 109 | 2689 |
|  Increase (decrease) in accrued management fees | 84 | 32 | 32 | 8 | 1 |
|  Proceeds from (Payments on) short sales transactions, net | (392) | 0 | 0 | 0 | 0 |
|  Proceeds from (Payments on) foreign currency transactions | (3275) | (1822) | (291) | (231) | (416) |
|  Increase (decrease) in other liabilities | (160) | (65) | (57) | (35) | (53) |
|  *Net Realized (Gain) Loss* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Investments in securities | 3149 | (8502) | (33542) | (2208) | (5227) |
| &nbsp;&nbsp;&nbsp;&nbsp; Exchange-traded or centrally cleared financial derivative instruments | (41964) | (29867) | (38713) | (2527) | (5503) |
| &nbsp;&nbsp;&nbsp;&nbsp; Over the counter financial derivative instruments | 8223 | (2171) | (3400) | (2674) | (4025) |
| &nbsp;&nbsp;&nbsp;&nbsp; Foreign currency | 2760 | 1773 | 150 | 214 | 384 |
|  *Net Change in Unrealized (Appreciation) Depreciation* |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Investments in securities | 23367 | 19216 | 46703 | 13948 | 23157 |
| &nbsp;&nbsp;&nbsp;&nbsp; Exchange-traded or centrally cleared financial derivative instruments | 15838 | 21882 | 28175 | (68) | 1968 |
| &nbsp;&nbsp;&nbsp;&nbsp; Over the counter financial derivative instruments | 1012 | 2623 | 4137 | 2257 | 3992 |
| &nbsp;&nbsp;&nbsp;&nbsp; Short sales | 11 | 0 | 0 | 0 | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp; Foreign currency assets and liabilities | 8684 | 3164 | 2179 | 926 | 1629 |
|  Net amortization (accretion) on investments | (12116) | (3466) | (5006) | (1982) | (3947) |
|  **Net Cash Provided by (Used for) Operating Activities** | 312263 | 112062 | 85931 | 9116 | 61345 |
|  **Cash Flows Received from (Used for) Financing Activities:** |  |  |  |  |  |
|  Net proceeds from at-the-market offering | 97702 | 25671 | 14912 | 10683 | 13337 |
|  Increase (decrease) in overdraft due to custodian | 612 | 79 | 291 | 0 | 0 |
|  Cash distributions paid to common shareholders\* | (93976) | (32999) | (35034) | (15903) | (30714) |
|  Cash distributions paid to auction rate preferred shareholders | (5969) | (528) | (1303) | (1255) | (2410) |
|  Proceeds from reverse repurchase agreements | 1736517 | 661350 | 609884 | 231160 | 461723 |
|  Payments on reverse repurchase agreements | &nbsp;&nbsp;&nbsp;&nbsp;(2050196) | (765936) | (675905) | &nbsp;&nbsp;&nbsp;&nbsp;(233825) | &nbsp;&nbsp;&nbsp;&nbsp;(502474) |
|  **Net Cash Received from (Used for) Financing Activities** | (315310) | &nbsp;&nbsp;&nbsp;&nbsp;(112363) | (87155) | (9140) | (60538) |
|  **Net Increase (Decrease) in Cash and Foreign Currency** | (3047) | (301) | (1224) | (24) | 807 |
|  **Cash and Foreign Currency:** |  |  |  |  |  |
|  Beginning of period | 9922 | 2117 | 2539 | 1296 | 2880 |
|  End of period | $6875 | $1816 | $1315 | $1272 | $3687 |
|  \* Reinvestment of distributions to common shareholders | $13974 | $4098 | $4421 | $1749 | $3624 |
|  **Supplemental Disclosure of Cash Flow Information:** |  |  |  |  |  |
|  Interest expense paid during the period | $7288 | $2792 | $4582 | $1579 | $2715 |
|  Non Cash Payment in Kind | $6674 | $2128 | $5111 | $1181 | $2747 |

---

---

| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

---

A Statement of Cash Flows is presented when a Fund has a significant amount of borrowing during the period, based on the average total borrowing outstanding in relation to total assets or when substantially all of a Fund's investments are not classified as Level 1 or 2 in the fair value hierarchy.

---

| | | |
|:---|:---|:---|
| **24** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

Schedule of Investments PIMCO Corporate & Income Opportunity Fund &nbsp;&nbsp;&nbsp;&nbsp; December 31, 2022 (Unaudited)

#### (Amounts in thousands\*, except number of shares, contracts, units and ounces, if any)

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| INVESTMENTS IN SECURITIES 142.5% | INVESTMENTS IN SECURITIES 142.5% | INVESTMENTS IN SECURITIES 142.5% |
| LOAN PARTICIPATIONS AND ASSIGNMENTS 45.5% | LOAN PARTICIPATIONS AND ASSIGNMENTS 45.5% | LOAN PARTICIPATIONS AND ASSIGNMENTS 45.5% |
|  Altar Bidco, Inc. | Altar Bidco, Inc. | Altar Bidco, Inc. |
|  10.512% due 02/01/2030 | 3450 | 2961 |
|  American Airlines, Inc. | American Airlines, Inc. | American Airlines, Inc. |
|  8.993% (LIBOR03M + 4.750%) due 04/20/2028 ~ | 12003 | 11971 |
|  AmSurg LLC | AmSurg LLC | AmSurg LLC |
|  TBD% due 04/29/2027 µ | 3446 | 3373 |
|  AP Core Holdings LLC | AP Core Holdings LLC | AP Core Holdings LLC |
|  9.884% (LIBOR01M + 5.500%) due 09/01/2027 ~ | 39237 | 35552 |
|  Arches Buyer, Inc. | Arches Buyer, Inc. | Arches Buyer, Inc. |
|  7.634% (LIBOR01M + 3.250%) due 12/06/2027 ~ | 2270 | 2108 |
|  Carnival Corp. | Carnival Corp. | Carnival Corp. |
|  5.648% (EUR001M + 3.750%) due 06/30/2025 ~ | 23575 | 24325 |
|  7.384% (LIBOR01M + 3.000%) due 06/30/2025 ~ | 1777 | 1709 |
|  Casino Guichard-Perrachon SA | Casino Guichard-Perrachon SA | Casino Guichard-Perrachon SA |
|  5.340% (EUR003M + 4.000%) due 08/31/2025 ~ | 5600 | 5101 |
|  Cengage Learning, Inc. | Cengage Learning, Inc. | Cengage Learning, Inc. |
|  7.814% (LIBOR06M + 4.750%) due 07/14/2026 ~ | 3095 | 2791 |
|  Comexposium | Comexposium | Comexposium |
|  4.969% (EUR001Y + 4.000%) due 03/28/2026 ~ | 24800 | 22255 |
|  Coty, Inc. | Coty, Inc. | Coty, Inc. |
|  4.019% (EUR001M + 2.500%) due 04/07/2025 ~ | 6045 | 6257 |
|  Diamond Sports Group LLC | Diamond Sports Group LLC | Diamond Sports Group LLC |
|  12.317% due 05/25/2026 | 30952 | 29411 |
|  DirecTV Financing LLC | DirecTV Financing LLC | DirecTV Financing LLC |
|  9.384% (LIBOR01M + 5.000%) due 08/02/2027 ~ | 23091 | 22531 |
|  Encina Private Credit LLC | Encina Private Credit LLC | Encina Private Credit LLC |
|  TBD% - 8.684% (LIBOR01M + 4.366%) due 11/30/2025 «~µ | 27444 | 26855 |
|  Endure Digital, Inc. | Endure Digital, Inc. | Endure Digital, Inc. |
|  7.717% (LIBOR01M + 3.500%) due 02/10/2028 ~ | 7000 | 6318 |
|  Envision Healthcare Corp. | Envision Healthcare Corp. | Envision Healthcare Corp. |
|  12.119% due 04/29/2027 | 18954 | 18551 |
|  15.744% due 04/28/2028 | 44402 | 36335 |
|  Forbes Energy Services LLC | Forbes Energy Services LLC | Forbes Energy Services LLC |
|  7.000% due 06/30/2023 « | 935 | 0 |
|  11.000% due 06/30/2023 « | 13 | 0 |
|  Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. |
|  12.138% due 10/15/2027 | 15435 | 15242 |
|  12.565% due 10/18/2027 | 9245 | 6743 |
|  GIP Blue Holding LP | GIP Blue Holding LP | GIP Blue Holding LP |
|  9.230% (LIBOR03M + 4.500%) due 09/29/2028 ~ | 1 | 1 |
|  Hudson River Trading LLC | Hudson River Trading LLC | Hudson River Trading LLC |
|  7.438% due 03/20/2028 | 4752 | 4505 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  7.445% due 02/01/2029 | 8809 | 8522 |
|  Lealand Finance Co. BV | Lealand Finance Co. BV | Lealand Finance Co. BV |
|  7.384% (LIBOR01M + 3.000%) due 06/28/2024 ~ | 189 | 123 |
|  Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) |
|  8.384% (LIBOR01M + 1.000%) due 06/30/2025 ~(b) | 2116 | 1136 |
|  MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC |
|  8.985% (LIBOR03M + 4.250%) due 09/01/2028 ~ | 15741 | 13518 |
|  Naked Juice LLC | Naked Juice LLC | Naked Juice LLC |
|  10.680% due 01/24/2030 | 2200 | 1778 |
|  Nuuday AS | Nuuday AS | Nuuday AS |
|  TBD% due 12/31/2027 | 6600 | 6579 |
|  Poseidon Bidco SASU | Poseidon Bidco SASU | Poseidon Bidco SASU |
|  7.452% (EUR003M + 5.250%) due 07/14/2028 «~ | 15800 | 14572 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Promotora de Informaciones SA | Promotora de Informaciones SA | Promotora de Informaciones SA |
|  6.708% (EUR003M + 5.250%) due 12/31/2026 «~ | 24591 | 22638 |
|  8.000% (EUR003M + 8.000%) due 06/30/2027 «~ | 8037 | 7528 |
|  PUG LLC | PUG LLC | PUG LLC |
|  7.884% (LIBOR01M + 3.500%) due 02/12/2027 ~ | 18985 | 15805 |
|  8.634% (LIBOR01M + 4.250%) due 02/12/2027 «~ | 9950 | 8283 |
|  Redstone Holdco 2 LP | Redstone Holdco 2 LP | Redstone Holdco 2 LP |
|  9.108% (LIBOR03M + 4.750%) due 04/27/2028 ~ | 21124 | 14726 |
|  RegionalCare Hospital Partners Holdings, Inc. | RegionalCare Hospital Partners Holdings, Inc. | RegionalCare Hospital Partners Holdings, Inc. |
|  8.165% (LIBOR03M + 3.750%) due 11/16/2025 ~ | 2279 | 2154 |
|  Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. |
|  9.485% (LIBOR03M + 4.750%) due 06/01/2028 «~ | 5135 | 2439 |
|  Sigma Bidco BV | Sigma Bidco BV | Sigma Bidco BV |
|  3.738% (EUR006M + 3.500%) due 07/02/2025 ~ | 23000 | 21450 |
|  Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) |
|  10.750% (EUR006M) due 06/30/2023 ~(b) | 57140 | 39350 |
|  Sunshine Luxembourg SARL | Sunshine Luxembourg SARL | Sunshine Luxembourg SARL |
|  8.480% (LIBOR03M + 3.750%) due 10/01/2026 ~ | 486 | 467 |
|  Surgery Center Holdings, Inc. | Surgery Center Holdings, Inc. | Surgery Center Holdings, Inc. |
|  8.050% (LIBOR03M + 3.750%) due 08/31/2026 ~ | 5522 | 5466 |
|  Syniverse Holdings, Inc. | Syniverse Holdings, Inc. | Syniverse Holdings, Inc. |
|  11.580% due 05/13/2027 | 41969 | 36827 |
|  Team Health Holdings, Inc. | Team Health Holdings, Inc. | Team Health Holdings, Inc. |
|  7.134% (LIBOR01M + 2.750%) due 02/06/2024 ~ | 32653 | 28082 |
|  9.573% due 03/02/2027 | 7080 | 5357 |
|  Telemar Norte Leste SA | Telemar Norte Leste SA | Telemar Norte Leste SA |
|  TBD% due 02/26/2035 « | 34951 | 12233 |
|  TransDigm, Inc. | TransDigm, Inc. | TransDigm, Inc. |
|  6.980% (LIBOR03M + 2.250%) due 05/30/2025 ~ | 27 | 27 |
|  7.830% due 02/22/2027 | 11505 | 11480 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  9.438% (LIBOR01M + 5.000%) due 06/26/2026 ~ | 34695 | 19581 |
|  9.938% (LIBOR01M + 5.500%) due 06/26/2026 ~ | 18412 | 10391 |
|  Uber Technologies, Inc. | Uber Technologies, Inc. | Uber Technologies, Inc. |
|  8.235% (LIBOR03M + 3.500%) due 02/25/2027 ~ | 1385 | 1385 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  9.730% (LIBOR03M + 5.000%) due 09/01/2025 ~ | 31177 | 22152 |
|  Viad Corp. | Viad Corp. | Viad Corp. |
|  9.384% (LIBOR01M + 5.000%) due 07/30/2028 ~ | 4444 | 4215 |
|  Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) |
|  15.000% due 03/15/2029 (b) | 4243 | 3299 |
|  Windstream Services LLC | Windstream Services LLC | Windstream Services LLC |
|  8.423% due 02/28/2027 « | 14910 | 14224 |
|  10.673% (LIBOR01M + 6.250%) due 09/21/2027 ~ | 7488 | 6811 |
|  Total Loan Participations and Assignments (Cost $739,658) | Total Loan Participations and Assignments (Cost $739,658) | 647493 |
| CORPORATE BONDS & NOTES 53.2% | CORPORATE BONDS & NOTES 53.2% | CORPORATE BONDS & NOTES 53.2% |
| BANKING & FINANCE 14.3% | BANKING & FINANCE 14.3% | BANKING & FINANCE 14.3% |
|  ADLER Real Estate AG | ADLER Real Estate AG | ADLER Real Estate AG |
|  3.000% due 04/27/2026 | 400 | 299 |
|  Ally Financial, Inc. | Ally Financial, Inc. | Ally Financial, Inc. |
|  8.000% due 11/01/2031 (l) | 3550 | 3701 |
|  Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. |
|  4.625% due 06/15/2029 (l) | 2060 | 1651 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Armor Holdco, Inc. | Armor Holdco, Inc. | Armor Holdco, Inc. |
|  8.500% due 11/15/2029 (l) | 14000 | 10533 |
|  Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA |
|  1.875% due 01/09/2026 | 500 | 460 |
|  2.625% due 04/28/2025 | 19170 | 18621 |
|  3.625% due 09/24/2024 | 9609 | 9789 |
|  5.375% due 01/18/2028 •  | 8500 | 7357 |
|  8.000% due 01/22/2030 •  | 3909 | 3671 |
|  8.500% due 09/10/2030 •  | 4500 | 4249 |
|  10.500% due 07/23/2029 | 6159 | 6123 |
|  Banco de Credito del Peru SA | Banco de Credito del Peru SA | Banco de Credito del Peru SA |
|  4.650% due 09/17/2024 | 1600 | 394 |
|  Barclays PLC | Barclays PLC | Barclays PLC |
|  7.437% due 11/02/2033 •  | 4670 | 4907 |
|  BNP Paribas SA | BNP Paribas SA | BNP Paribas SA |
|  3.132% due 01/20/2033 •  | 4119 | 3262 |
|  BOI Finance BV | BOI Finance BV | BOI Finance BV |
|  7.500% due 02/16/2027 | 7100 | 6138 |
|  Corsair International Ltd. | Corsair International Ltd. | Corsair International Ltd. |
|  5.473% due 01/28/2027 •  | 1300 | 1381 |
|  5.823% due 01/28/2029 •  | 1100 | 1166 |
|  Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. |
|  13.850% (T-BILL 1MO + 9.250%) due 04/03/2028 ~ | 1900 | 1539 |
|  Country Garden Holdings Co. Ltd. | Country Garden Holdings Co. Ltd. | Country Garden Holdings Co. Ltd. |
|  2.700% due 07/12/2026 | 300 | 172 |
|  3.125% due 10/22/2025 | 200 | 123 |
|  4.800% due 08/06/2030 | 200 | 107 |
|  6.150% due 09/17/2025 | 200 | 131 |
|  8.000% due 01/27/2024 | 300 | 232 |
|  Credit Agricole SA | Credit Agricole SA | Credit Agricole SA |
|  7.875% due 01/23/2024 •(h)(i) | 400 | 398 |
|  Credit Suisse Group AG | Credit Suisse Group AG | Credit Suisse Group AG |
|  6.373% due 07/15/2026 •(l) | 1200 | 1128 |
|  6.375% due 08/21/2026 •(h)(i)(l) | 1300 | 935 |
|  6.442% due 08/11/2028 •(l) | 4000 | 3649 |
|  6.537% due 08/12/2033 •(l) | 2300 | 2024 |
|  7.250% due 09/12/2025 •(h)(i)(l) | 200 | 144 |
|  7.500% due 07/17/2023 •(h)(i)(l) | 600 | 481 |
|  7.500% due 07/17/2023 •(h)(i) | 700 | 561 |
|  7.500% due 12/11/2023 •(h)(i) | 2736 | 2397 |
|  7.500% due 12/11/2023 •(h)(i)(l) | 1100 | 964 |
|  Doric Nimrod Air Alpha Pass-Through Trust | Doric Nimrod Air Alpha Pass-Through Trust | Doric Nimrod Air Alpha Pass-Through Trust |
|  5.250% due 05/30/2025 | 13 | 13 |
|  Essential Properties LP | Essential Properties LP | Essential Properties LP |
|  2.950% due 07/15/2031 (l) | 500 | 365 |
|  GLP Capital LP | GLP Capital LP | GLP Capital LP |
|  3.250% due 01/15/2032 (l) | 400 | 320 |
|  GSPA Monetization Trust | GSPA Monetization Trust | GSPA Monetization Trust |
|  6.422% due 10/09/2029 | 4940 | 4747 |
|  Hampton Roads PPV LLC | Hampton Roads PPV LLC | Hampton Roads PPV LLC |
|  6.171% due 06/15/2053 | 1800 | 1560 |
|  Hestia Re Ltd. | Hestia Re Ltd. | Hestia Re Ltd. |
|  13.840% (T-BILL 1MO + 9.500%) due 04/22/2025 ~ | 1878 | 1549 |
|  Huarong Finance Co. Ltd. | Huarong Finance Co. Ltd. | Huarong Finance Co. Ltd. |
|  3.375% due 02/24/2030 | 300 | 229 |
|  3.875% due 11/13/2029 | 700 | 554 |
|  4.250% due 11/07/2027 | 200 | 171 |
|  4.500% due 05/29/2029 | 1300 | 1080 |
|  4.750% due 04/27/2027 | 200 | 175 |
|  Intesa Sanpaolo SpA | Intesa Sanpaolo SpA | Intesa Sanpaolo SpA |
|  7.750% due 01/11/2027 •(h)(i) | 2400 | 2485 |
|  8.248% due 11/21/2033 •  | 14304 | 14552 |
|  MPT Operating Partnership LP | MPT Operating Partnership LP | MPT Operating Partnership LP |
|  3.375% due 04/24/2030 | 2100 | 1664 |
|  National Health Investors, Inc. | National Health Investors, Inc. | National Health Investors, Inc. |
|  3.000% due 02/01/2031 (l) | 800 | 578 |
|  Sanders Re Ltd. | Sanders Re Ltd. | Sanders Re Ltd. |
|  16.090% (T-BILL 3MO + 11.750%) due 04/09/2029 ~ | 3241 | 3078 |
|  Seazen Group Ltd. | Seazen Group Ltd. | Seazen Group Ltd. |
|  6.000% due 08/12/2024 | 200 | 157 |
|  Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC |
|  5.659% due 06/30/2027 | 711 | 849 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **25** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Opportunity Fund | (Cont.) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Uniti Group LP | Uniti Group LP | Uniti Group LP |
|  6.000% due 01/15/2030 (l) | 20566 | 13040 |
|  7.875% due 02/15/2025 (l) | 30470 | 29560 |
|  VICI Properties LP | VICI Properties LP | VICI Properties LP |
|  3.875% due 02/15/2029 (l) | 3300 | 2897 |
|  4.500% due 09/01/2026 (l) | 4050 | 3817 |
|  4.500% due 01/15/2028 (l) | 3050 | 2816 |
|  5.750% due 02/01/2027 (l) | 600 | 586 |
|  Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC |
|  8.500% due 05/09/2026 | 20412 | 16202 |
|  Yosemite Re Ltd. | Yosemite Re Ltd. | Yosemite Re Ltd. |
|  14.087% (T-BILL 3MO + 9.750%) due 06/06/2025 ~ | 1790 | 1725 |
|  |  | 203456 |
| INDUSTRIALS 33.1% |  |  |
|  AA Bond Co. Ltd. | AA Bond Co. Ltd. | AA Bond Co. Ltd. |
|  5.500% due 07/31/2050 | 3541 | 3714 |
|  Air Canada Pass-Through Trust | Air Canada Pass-Through Trust | Air Canada Pass-Through Trust |
|  5.250% due 10/01/2030 | 1198 | 1133 |
|  Altice Financing SA | Altice Financing SA | Altice Financing SA |
|  5.750% due 08/15/2029 (l) | 6551 | 5165 |
|  Altice France Holding SA | Altice France Holding SA | Altice France Holding SA |
|  10.500% due 05/15/2027 (l) | 12200 | 9329 |
|  American Airlines Pass-Through Trust | American Airlines Pass-Through Trust | American Airlines Pass-Through Trust |
|  3.350% due 04/15/2031 (l) | 1135 | 982 |
|  3.375% due 11/01/2028 (l) | 438 | 366 |
|  3.700% due 04/01/2028 (l) | 1842 | 1594 |
|  Arches Buyer, Inc. | Arches Buyer, Inc. | Arches Buyer, Inc. |
|  4.250% due 06/01/2028 (l) | 3400 | 2664 |
|  Boeing Co. | Boeing Co. | Boeing Co. |
|  5.705% due 05/01/2040 (l) | 7570 | 7251 |
|  5.930% due 05/01/2060 (l) | 1804 | 1653 |
|  6.125% due 02/15/2033 (l) | 3988 | 4066 |
|  British Airways Pass-Through Trust | British Airways Pass-Through Trust | British Airways Pass-Through Trust |
|  4.250% due 05/15/2034 | 54 | 48 |
|  Carvana Co. | Carvana Co. | Carvana Co. |
|  10.250% due 05/01/2030 | 5800 | 2736 |
|  CDW LLC | CDW LLC | CDW LLC |
|  3.569% due 12/01/2031 (l) | 2300 | 1900 |
|  CGG SA | CGG SA | CGG SA |
|  7.750% due 04/01/2027 | 16519 | 14511 |
|  8.750% due 04/01/2027 (l) | 8648 | 6927 |
|  Champion Path Holdings Ltd. | Champion Path Holdings Ltd. | Champion Path Holdings Ltd. |
|  4.500% due 01/27/2026 | 3300 | 2881 |
|  4.850% due 01/27/2028 | 2800 | 2362 |
|  Community Health Systems, Inc. | Community Health Systems, Inc. | Community Health Systems, Inc. |
|  8.000% due 03/15/2026 (l) | 29415 | 26841 |
|  CVS Pass-Through Trust | CVS Pass-Through Trust | CVS Pass-Through Trust |
|  7.507% due 01/10/2032 (l) | 1371 | 1428 |
|  DISH DBS Corp. | DISH DBS Corp. | DISH DBS Corp. |
|  5.250% due 12/01/2026 (l) | 10002 | 8444 |
|  5.750% due 12/01/2028 (l) | 17500 | 14000 |
|  DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) |
|  7.000% due 12/31/2027 (b) | 8767 | 2416 |
|  Dufry One BV | Dufry One BV | Dufry One BV |
|  3.625% due 04/15/2026 | 9345 | 8898 |
|  Endurance International Group Holdings, Inc. | Endurance International Group Holdings, Inc. | Endurance International Group Holdings, Inc. |
|  6.000% due 02/15/2029 | 1000 | 689 |
|  Exela Intermediate LLC | Exela Intermediate LLC | Exela Intermediate LLC |
|  11.500% due 07/15/2026 | 158 | 28 |
|  Ford Motor Co. | Ford Motor Co. | Ford Motor Co. |
|  7.700% due 05/15/2097 (l) | 26551 | 25176 |
|  Greene King Finance PLC | Greene King Finance PLC | Greene King Finance PLC |
|  5.322% (SONIO/N + 1.919%) due 12/15/2034 ~ | 350 | 327 |
|  HCA, Inc. | HCA, Inc. | HCA, Inc. |
|  7.500% due 11/15/2095 (l) | 4800 | 5168 |
|  HF Sinclair Corp. | HF Sinclair Corp. | HF Sinclair Corp. |
|  4.500% due 10/01/2030 (l) | 10345 | 9106 |
|  IHO Verwaltungs GmbH (3.875% Cash or 4.625% PIK) | IHO Verwaltungs GmbH (3.875% Cash or 4.625% PIK) | IHO Verwaltungs GmbH (3.875% Cash or 4.625% PIK) |
|  3.875% due 05/15/2027 (b) | 256 | 233 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  6.500% due 03/15/2030 (l) | 33857 | 30352 |
|  Inter Media & Communication SpA | Inter Media & Communication SpA | Inter Media & Communication SpA |
|  6.750% due 02/09/2027 | 7000 | 7122 |
|  Market Bidco Finco PLC | Market Bidco Finco PLC | Market Bidco Finco PLC |
|  4.750% due 11/04/2027 | 1800 | 1555 |
|  Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. |
|  4.875% due 06/06/2025 (l) | 4300 | 3956 |
|  5.375% due 12/04/2029 (l) | 200 | 161 |
|  5.750% due 07/21/2028 (l) | 4100 | 3435 |
|  5.750% due 07/21/2028 | 200 | 168 |
|  MGM China Holdings Ltd. | MGM China Holdings Ltd. | MGM China Holdings Ltd. |
|  5.250% due 06/18/2025 (l) | 2400 | 2261 |
|  Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. |
|  4.810% due 09/17/2030 (l) | 21100 | 17953 |
|  Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) |
|  11.000% due 02/15/2028 (b) | 105 | 116 |
|  NPC Ukrenergo | NPC Ukrenergo | NPC Ukrenergo |
|  6.875% due 11/09/2028 ^(c) | 1000 | 178 |
|  Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. |
|  0.000% due 01/30/2023 (f)(h) | 1279 | 3 |
|  Olympus Water U.S. Holding Corp. | Olympus Water U.S. Holding Corp. | Olympus Water U.S. Holding Corp. |
|  5.375% due 10/01/2029 | 6300 | 4918 |
|  Oracle Corp. | Oracle Corp. | Oracle Corp. |
|  3.850% due 04/01/2060 | 200 | 134 |
|  4.100% due 03/25/2061 (j)(l) | 2600 | 1817 |
|  Petroleos Mexicanos | Petroleos Mexicanos | Petroleos Mexicanos |
|  6.700% due 02/16/2032 (l) | 7494 | 5899 |
|  Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. |
|  7.250% due 11/01/2025 (l) | 10800 | 9143 |
|  Prosus NV | Prosus NV | Prosus NV |
|  1.985% due 07/13/2033 | 1100 | 800 |
|  2.778% due 01/19/2034 | 1600 | 1237 |
|  3.832% due 02/08/2051 | 1900 | 1154 |
|  QVC, Inc. | QVC, Inc. | QVC, Inc. |
|  5.950% due 03/15/2043 (l) | 3261 | 1617 |
|  Russian Railways Via RZD Capital PLC | Russian Railways Via RZD Capital PLC | Russian Railways Via RZD Capital PLC |
|  7.487% due 03/25/2031 ^(c) | 1500 | 980 |
|  Sands China Ltd. | Sands China Ltd. | Sands China Ltd. |
|  2.800% due 03/08/2027 (l) | 1800 | 1544 |
|  3.350% due 03/08/2029 (l) | 1600 | 1309 |
|  3.750% due 08/08/2031 (l) | 330 | 260 |
|  5.900% due 08/08/2028 (l) | 11531 | 10812 |
|  Studio City Finance Ltd. | Studio City Finance Ltd. | Studio City Finance Ltd. |
|  5.000% due 01/15/2029 (l) | 1200 | 888 |
|  5.000% due 01/15/2029 | 200 | 148 |
|  6.000% due 07/15/2025 (l) | 4400 | 3822 |
|  6.500% due 01/15/2028 (l) | 4200 | 3268 |
|  Syngenta Finance NV | Syngenta Finance NV | Syngenta Finance NV |
|  4.892% due 04/24/2025 (l) | 200 | 194 |
|  Topaz Solar Farms LLC | Topaz Solar Farms LLC | Topaz Solar Farms LLC |
|  4.875% due 09/30/2039 (l) | 3900 | 3470 |
|  5.750% due 09/30/2039 (l) | 31181 | 29638 |
|  U.S. Airways Pass-Through Trust | U.S. Airways Pass-Through Trust | U.S. Airways Pass-Through Trust |
|  3.950% due 05/15/2027 (l) | 533 | 485 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  10.625% due 07/15/2027 (l) | 8644 | 1902 |
|  United Airlines Pass-Through Trust | United Airlines Pass-Through Trust | United Airlines Pass-Through Trust |
|  4.150% due 02/25/2033 | 77 | 69 |
|  United Group BV | United Group BV | United Group BV |
|  4.875% due 07/01/2024 | 200 | 200 |
|  Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) |
|  8.250% due 04/30/2028 (b)(l) | 11533 | 11615 |
|  Vale SA | Vale SA | Vale SA |
|  3.202% due 12/29/2049 ~(h) | 250000 | 17666 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  7.500% due 09/01/2025 (l) | 12780 | 8829 |
|  Viking Cruises Ltd. | Viking Cruises Ltd. | Viking Cruises Ltd. |
|  13.000% due 05/15/2025 (l) | 13655 | 14428 |
|  Viking Ocean Cruises Ship Ltd. | Viking Ocean Cruises Ship Ltd. | Viking Ocean Cruises Ship Ltd. |
|  5.625% due 02/15/2029 | 100 | 81 |
|  VOC Escrow Ltd. | VOC Escrow Ltd. | VOC Escrow Ltd. |
|  5.000% due 02/15/2028 (l) | 13238 | 11407 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) |
|  10.500% due 11/15/2026 (b) | 62397 | 57561 |
|  Windstream Escrow LLC | Windstream Escrow LLC | Windstream Escrow LLC |
|  7.750% due 08/15/2028 (l) | 17165 | 14027 |
|  Wynn Macau Ltd. | Wynn Macau Ltd. | Wynn Macau Ltd. |
|  4.875% due 10/01/2024 (l) | 600 | 567 |
|  5.125% due 12/15/2029 (l) | 1200 | 973 |
|  5.500% due 01/15/2026 (l) | 500 | 459 |
|  5.500% due 01/15/2026 | 4100 | 3768 |
|  5.500% due 10/01/2027 (l) | 1300 | 1138 |
|  5.625% due 08/26/2028 (l) | 4535 | 3883 |
|  |  | 471406 |
| UTILITIES 5.8% | UTILITIES 5.8% | UTILITIES 5.8% |
|  Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. |
|  6.750% due 08/06/2023 | 3900 | 3765 |
|  7.125% due 02/11/2025 | 8800 | 8035 |
|  7.125% due 02/11/2025 (l) | 1800 | 1644 |
|  Mountain States Telephone & Telegraph Co. | Mountain States Telephone & Telegraph Co. | Mountain States Telephone & Telegraph Co. |
|  7.375% due 05/01/2030 (l) | 6900 | 6714 |
|  NGD Holdings BV | NGD Holdings BV | NGD Holdings BV |
|  6.750% due 12/31/2026 | 1261 | 587 |
|  Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) |
|  7.350% due 12/01/2026 ^(b) | 355 | 196 |
|  Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) |
|  7.720% due 12/01/2026 ^(b) | 9761 | 2611 |
|  Oi SA | Oi SA | Oi SA |
|  10.000% due 07/27/2025 | 64484 | 11143 |
|  Pacific Gas & Electric Co. | Pacific Gas & Electric Co. | Pacific Gas & Electric Co. |
|  3.300% due 03/15/2027 (l) | 3862 | 3441 |
|  3.750% due 08/15/2042 | 46 | 31 |
|  4.000% due 12/01/2046 (l) | 1006 | 677 |
|  4.200% due 03/01/2029 (l) | 4200 | 3759 |
|  4.300% due 03/15/2045 (l) | 257 | 183 |
|  4.450% due 04/15/2042 (l) | 2491 | 1863 |
|  4.500% due 12/15/2041 (l) | 65 | 46 |
|  4.600% due 06/15/2043 (l) | 1036 | 787 |
|  4.750% due 02/15/2044 (l) | 15063 | 11582 |
|  4.950% due 07/01/2050 (l) | 8191 | 6382 |
|  Peru LNG SRL | Peru LNG SRL | Peru LNG SRL |
|  5.375% due 03/22/2030 | 18496 | 15475 |
|  Rio Oil Finance Trust | Rio Oil Finance Trust | Rio Oil Finance Trust |
|  9.250% due 07/06/2024 | 1696 | 1722 |
|  9.250% due 07/06/2024 (l) | 1614 | 1638 |
|  |  | 82281 |
|  Total Corporate Bonds & Notes (Cost $906,555) |  | 757143 |
| CONVERTIBLE BONDS & NOTES 0.3% | CONVERTIBLE BONDS & NOTES 0.3% | CONVERTIBLE BONDS & NOTES 0.3% |
| INDUSTRIALS 0.3% | INDUSTRIALS 0.3% | INDUSTRIALS 0.3% |
|  DISH Network Corp. |  |  |
|  3.375% due 08/15/2026 | 5900 | 3711 |
|  Total Convertible Bonds & Notes (Cost $5,900) |  | 3711 |
| MUNICIPAL BONDS & NOTES 1.6% | MUNICIPAL BONDS & NOTES 1.6% | MUNICIPAL BONDS & NOTES 1.6% |
| CALIFORNIA 0.2% | CALIFORNIA 0.2% | CALIFORNIA 0.2% |
|  Golden State, California Tobacco Securitization Corp. Revenue Bonds, Series 2021 | Golden State, California Tobacco Securitization Corp. Revenue Bonds, Series 2021 | Golden State, California Tobacco Securitization Corp. Revenue Bonds, Series 2021 |
|  3.850% due 06/01/2050 | 1000 | 886 |
|  4.214% due 06/01/2050 | 2400 | 1879 |
|  |  | 2765 |
| ILLINOIS 0.4% | ILLINOIS 0.4% | ILLINOIS 0.4% |
|  Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 |
|  7.517% due 01/01/2040 | 5000 | 5278 |

---

---

| | | |
|:---|:---|:---|
| **26** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Chicago, Illinois General Obligation Bonds, Series 2015 | Chicago, Illinois General Obligation Bonds, Series 2015 | Chicago, Illinois General Obligation Bonds, Series 2015 |
|  7.750% due 01/01/2042 | 51 | 52 |
|  Chicago, Illinois General Obligation Bonds, Series 2017 | Chicago, Illinois General Obligation Bonds, Series 2017 | Chicago, Illinois General Obligation Bonds, Series 2017 |
|  7.045% due 01/01/2029 | 145 | 147 |
|  |  | 5477 |
| PUERTO RICO 0.6% | PUERTO RICO 0.6% | PUERTO RICO 0.6% |
|  Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 |
|  0.000% due 11/01/2043 (f) | 10868 | 4768 |
|  0.000% due 11/01/2051 (f) | 11793 | 3980 |
|  |  | 8748 |
| WEST VIRGINIA 0.4% | WEST VIRGINIA 0.4% | WEST VIRGINIA 0.4% |
|  Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 |
|  0.000% due 06/01/2047 (f) | 78700 | 5860 |
|  Total Municipal Bonds & Notes<br>(Cost $27,264) |  | 22850 |
| U.S. GOVERNMENT AGENCIES 1.8% | U.S. GOVERNMENT AGENCIES 1.8% | U.S. GOVERNMENT AGENCIES 1.8% |
|  Fannie Mae | Fannie Mae | Fannie Mae |
|  3.000% due 01/25/2042 (a)(l) | 141 | 9 |
|  3.500% due 02/25/2033 (a)(l) | 973 | 93 |
|  4.500% due 07/25/2050 (a) | 4856 | 998 |
|  5.000% due 02/25/2036 ~(a) | 235 | 34 |
|  10.139% due 07/25/2029 •  | 2010 | 2194 |
|  Freddie Mac | Freddie Mac | Freddie Mac |
|  0.040% due 03/15/2043 •(l) | 69 | 44 |
|  0.217% due 09/15/2042 •  | 711 | 413 |
|  0.325% due 03/15/2044 •  | 1822 | 1211 |
|  0.542% due 07/15/2039 •  | 2207 | 1566 |
|  1.013% due 02/15/2036 ~ | 5228 | 4309 |
|  3.000% due 12/25/2050 (a) | 7730 | 1243 |
|  3.227% due 02/15/2034 ~(a) | 993 | 88 |
|  3.500% due 10/15/2035 (a)(l) | 980 | 106 |
|  5.992% due 11/25/2055 «~ | 13654 | 8392 |
|  11.939% due 12/25/2027 ~ | 4170 | 4189 |
|  Ginnie Mae | Ginnie Mae | Ginnie Mae |
|  2.397% due 01/20/2042 •(a) | 874 | 81 |
|  3.500% due 09/16/2041 (a) | 255 | 31 |
|  3.500% due 06/20/2042 (a)(l) | 141 | 25 |
|  Total U.S. Government Agencies<br>(Cost $28,396) |  | &nbsp;&nbsp;&nbsp;&nbsp;25026 |
| NON-AGENCY MORTGAGE-BACKED SECURITIES 10.3% | NON-AGENCY MORTGAGE-BACKED SECURITIES 10.3% | NON-AGENCY MORTGAGE-BACKED SECURITIES 10.3% |
|  Adjustable Rate Mortgage Trust | Adjustable Rate Mortgage Trust | Adjustable Rate Mortgage Trust |
|  4.729% due 05/25/2036 •  | 1474 | 566 |
|  5.539% due 01/25/2035 •  | 2515 | 2183 |
|  Banc of America Funding Trust | Banc of America Funding Trust | Banc of America Funding Trust |
|  4.629% due 06/26/2036 ~ | 4629 | 3719 |
|  5.500% due 01/25/2036 | 51 | 51 |
|  6.000% due 07/25/2037 ^ | 313 | 245 |
|  BCAP LLC Trust | BCAP LLC Trust | BCAP LLC Trust |
|  3.082% due 03/27/2036 ~ | 2421 | 1746 |
|  3.733% due 02/26/2036 ~ | 1451 | 1307 |
|  4.611% due 03/26/2037 þ | 1236 | 1676 |
|  7.000% due 12/26/2036 ~ | 2088 | 1397 |
|  Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust |
|  3.586% due 11/25/2036 ^~ | 499 | 267 |
|  3.642% due 08/25/2046 ^~ | 2636 | 1872 |
|  3.697% due 08/25/2036 ^~ | 2073 | 1103 |
|  3.908% due 09/25/2035 ^~ | 470 | 279 |
|  3.923% due 11/25/2034 ~ | 181 | 167 |
|  Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust |
|  4.789% due 04/25/2037 ~ | 7998 | 6597 |
|  Bear Stearns Mortgage Funding Trust | Bear Stearns Mortgage Funding Trust | Bear Stearns Mortgage Funding Trust |
|  7.500% due 08/25/2036 þ | 178 | 178 |
|  Benchmark Mortgage Trust | Benchmark Mortgage Trust | Benchmark Mortgage Trust |
|  2.760% due 02/15/2054 ~ | 8388 | 4921 |
|  BFLD Trust | BFLD Trust | BFLD Trust |
|  8.018% due 10/15/2035 •  | 4700 | 3853 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  CD Mortgage Trust | CD Mortgage Trust | CD Mortgage Trust |
|  5.688% due 10/15/2048 | 604 | 532 |
|  Chase Mortgage Finance Trust | Chase Mortgage Finance Trust | Chase Mortgage Finance Trust |
|  3.946% due 12/25/2035 ^~ | 8 | 7 |
|  6.000% due 02/25/2037 ^ | 1193 | 492 |
|  6.000% due 03/25/2037 ^ | 289 | 157 |
|  6.000% due 07/25/2037 ^ | 1000 | 489 |
|  Citigroup Commercial Mortgage Trust | Citigroup Commercial Mortgage Trust | Citigroup Commercial Mortgage Trust |
|  5.447% due 12/10/2049 ~ | 328 | 162 |
|  Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust |
|  3.463% due 03/25/2037 ^~ | 252 | 220 |
|  3.762% due 11/25/2035 ~ | 10845 | 6262 |
|  3.993% due 04/25/2037 ^~ | 1750 | 1463 |
|  6.000% due 11/25/2036 ~ | 9341 | 5544 |
|  CitiMortgage Alternative Loan Trust | CitiMortgage Alternative Loan Trust | CitiMortgage Alternative Loan Trust |
|  5.750% due 04/25/2037 ^ | 1242 | 1108 |
|  Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust |
|  6.480% due 12/10/2049 ~ | 928 | 149 |
|  Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust |
|  6.000% due 08/25/2037 ^~ | 1426 | 854 |
|  Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust |
|  0.861% due 04/25/2037 ^•(a) | 13611 | 1143 |
|  3.594% due 06/25/2037 ^~ | 915 | 783 |
|  4.773% due 03/20/2046 •  | 2640 | 2061 |
|  4.929% due 08/25/2035 ~ | 227 | 125 |
|  5.500% due 03/25/2035 | 381 | 174 |
|  5.500% due 09/25/2035 ^ | 3071 | 2098 |
|  5.541% due 02/25/2036 •  | 925 | 748 |
|  5.750% due 01/25/2035 | 245 | 231 |
|  5.750% due 02/25/2035 | 366 | 257 |
|  6.000% due 02/25/2035 | 457 | 349 |
|  6.000% due 04/25/2036 | 1241 | 613 |
|  6.000% due 05/25/2036 ^ | 1394 | 710 |
|  6.000% due 02/25/2037 ^ | 497 | 192 |
|  6.000% due 02/25/2037 | 1486 | 840 |
|  6.000% due 04/25/2037 ^ | 4094 | 2068 |
|  6.000% due 08/25/2037 ^•  | 6438 | 3388 |
|  6.250% due 10/25/2036 ^ | 1433 | 909 |
|  6.250% due 12/25/2036 ^•  | 2366 | 1094 |
|  6.500% due 08/25/2036 ^ | 659 | 237 |
|  6.500% due 09/25/2036 ^ | 321 | 185 |
|  Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust |
|  5.500% due 07/25/2037 ^ | 410 | 191 |
|  6.000% due 04/25/2036 ^ | 248 | 153 |
|  Credit Suisse Mortgage Capital Mortgage-Backed Trust | Credit Suisse Mortgage Capital Mortgage-Backed Trust | Credit Suisse Mortgage Capital Mortgage-Backed Trust |
|  5.750% due 04/25/2036 ^ | 904 | 501 |
|  Eurosail PLC | Eurosail PLC | Eurosail PLC |
|  4.861% due 06/13/2045 ~ | 4487 | 3863 |
|  7.511% due 06/13/2045 ~ | 1394 | 1385 |
|  First Horizon Alternative Mortgage Securities Trust | First Horizon Alternative Mortgage Securities Trust | First Horizon Alternative Mortgage Securities Trust |
|  6.250% due 11/25/2036 ^ | 981 | 366 |
|  Freddie Mac | Freddie Mac | Freddie Mac |
|  9.428% due 01/25/2034 •  | 5000 | 3946 |
|  11.728% due 11/25/2041 ~ | 8800 | 7529 |
|  GS Mortgage Securities Corp. | GS Mortgage Securities Corp. | GS Mortgage Securities Corp. |
|  7.736% due 08/15/2039 ~ | 2600 | 2624 |
|  GS Mortgage Securities Corp. Trust | GS Mortgage Securities Corp. Trust | GS Mortgage Securities Corp. Trust |
|  4.591% due 10/10/2032 ~ | 9200 | 8673 |
|  GSR Mortgage Loan Trust | GSR Mortgage Loan Trust | GSR Mortgage Loan Trust |
|  3.338% due 03/25/2037 ^~ | 1345 | 822 |
|  3.954% due 11/25/2035 ^~ | 531 | 437 |
|  HomeBanc Mortgage Trust | HomeBanc Mortgage Trust | HomeBanc Mortgage Trust |
|  5.589% due 03/25/2035 ~ | 80 | 61 |
|  IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust |
|  6.500% due 07/25/2037 ^ | 6455 | 2096 |
|  Jackson Park Trust | Jackson Park Trust | Jackson Park Trust |
|  3.242% due 10/14/2039 ~ | 4368 | 3158 |
|  JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust |
|  3.585% due 03/25/2037 ~ | 4330 | 3860 |
|  JP Morgan Mortgage Trust | JP Morgan Mortgage Trust | JP Morgan Mortgage Trust |
|  3.340% due 06/25/2036 ^~ | 334 | 240 |
|  3.478% due 02/25/2036 ^~ | 947 | 704 |
|  3.850% due 01/25/2037 ^~ | 441 | 359 |
|  4.006% due 10/25/2035 ~ | 11 | 10 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Lehman Mortgage Trust | Lehman Mortgage Trust | Lehman Mortgage Trust |
|  6.000% due 07/25/2037 ^ | 65 | 58 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  4.829% due 06/25/2047 •  | 1599 | 1426 |
|  MASTR Alternative Loan Trust | MASTR Alternative Loan Trust | MASTR Alternative Loan Trust |
|  6.750% due 07/25/2036 | 2815 | 1045 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  2.736% due 03/25/2036 ^~ | 2035 | 1118 |
|  Morgan Stanley Capital Trust | Morgan Stanley Capital Trust | Morgan Stanley Capital Trust |
|  6.118% due 12/15/2036 •  | 8125 | 6421 |
|  Natixis Commercial Mortgage Securities Trust | Natixis Commercial Mortgage Securities Trust | Natixis Commercial Mortgage Securities Trust |
|  6.718% due 11/15/2034 •  | 4500 | 4327 |
|  RBSSP Resecuritization Trust | RBSSP Resecuritization Trust | RBSSP Resecuritization Trust |
|  4.256% due 08/27/2037 •  | 8000 | 3966 |
|  4.609% due 10/27/2036 ~ | 3609 | 1123 |
|  Residential Accredit Loans, Inc. Trust | Residential Accredit Loans, Inc. Trust | Residential Accredit Loans, Inc. Trust |
|  4.769% due 08/25/2036 ^~ | 350 | 335 |
|  4.849% due 05/25/2037 ^•  | 165 | 138 |
|  6.000% due 08/25/2036 ^ | 314 | 262 |
|  6.000% due 05/25/2037 ^ | 1056 | 843 |
|  Residential Asset Securitization Trust | Residential Asset Securitization Trust | Residential Asset Securitization Trust |
|  5.750% due 02/25/2036 ^ | 295 | 114 |
|  6.000% due 02/25/2037 ^ | 1460 | 681 |
|  6.250% due 09/25/2037 ^ | 4633 | 1867 |
|  Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust |
|  4.412% due 02/25/2037 ~ | 1470 | 1021 |
|  Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust |
|  3.688% due 07/25/2035 ^~ | 912 | 776 |
|  3.694% due 01/25/2036 ^~ | 3971 | 2500 |
|  4.022% due 11/25/2036 ^~ | 2134 | 1791 |
|  Structured Asset Mortgage Investments Trust | Structured Asset Mortgage Investments Trust | Structured Asset Mortgage Investments Trust |
|  4.509% due 08/25/2036 •  | 74 | 63 |
|  SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust |
|  2.278% due 04/25/2037 ^~ | 215 | 130 |
|  3.128% due 02/25/2037 ^~ | 1518 | 1315 |
|  3.232% due 02/25/2037 ^~ | 181 | 157 |
|  Wachovia Mortgage Loan Trust LLC | Wachovia Mortgage Loan Trust LLC | Wachovia Mortgage Loan Trust LLC |
|  1.464% due 08/25/2036 •  | 2346 | 924 |
|  WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust |
|  3.211% due 02/25/2037 ^~ | 531 | 477 |
|  3.367% due 07/25/2037 ^~ | 423 | 354 |
|  3.672% due 10/25/2036 ^~ | 763 | 657 |
|  3.864% due 07/25/2037 ^~ | 865 | 794 |
|  Washington Mutual Mortgage Pass-Through Certificates Trust | Washington Mutual Mortgage Pass-Through Certificates Trust | Washington Mutual Mortgage Pass-Through Certificates Trust |
|  2.888% due 05/25/2047 ^•  | 118 | 15 |
|  6.000% due 10/25/2035 ^ | 926 | 636 |
|  6.000% due 03/25/2036 ^ | 1154 | 1064 |
|  6.000% due 02/25/2037 | 2538 | 1998 |
|  Total Non-Agency Mortgage-Backed Securities (Cost $167,099) | Total Non-Agency Mortgage-Backed Securities (Cost $167,099) | &nbsp;&nbsp;&nbsp;&nbsp;147145 |
| ASSET-BACKED SECURITIES 9.6% | ASSET-BACKED SECURITIES 9.6% | ASSET-BACKED SECURITIES 9.6% |
|  Adagio CLO DAC |  |  |
|  0.000% due 04/30/2031 ~ | 1800 | 503 |
|  Ameriquest Mortgage Securities, Inc. Asset-Backed Pass-Through Certificates | Ameriquest Mortgage Securities, Inc. Asset-Backed Pass-Through Certificates | Ameriquest Mortgage Securities, Inc. Asset-Backed Pass-Through Certificates |
|  5.739% due 03/25/2033 •  | 37 | 36 |
|  Apidos CLO |  |  |
|  0.000% due 01/20/2031 ~ | 8800 | 2931 |
|  Belle Haven ABS CDO Ltd. |  |  |
|  3.998% due 07/05/2046 ~ | 324260 | 2395 |
|  Carlyle Global Market Strategies CLO Ltd. | Carlyle Global Market Strategies CLO Ltd. | Carlyle Global Market Strategies CLO Ltd. |
|  0.000% due 04/17/2031 ~ | 6000 | 1801 |
|  CIFC Funding Ltd. |  |  |
|  0.000% due 04/24/2030 ~ | 4100 | 942 |
|  0.000% due 10/22/2031 ~ | 3000 | 630 |
|  Cork Street CLO Designated Activity Co. | Cork Street CLO Designated Activity Co. | Cork Street CLO Designated Activity Co. |
|  0.000% due 11/27/2028 ~ | 800 | 251 |
|  Credit-Based Asset Servicing & Securitization LLC | Credit-Based Asset Servicing & Securitization LLC | Credit-Based Asset Servicing & Securitization LLC |
|  3.221% due 12/25/2035 ^þ | 1 | 1 |
|  Crown City CLO |  |  |
|  0.000% due 04/20/2035 ~ | 1600 | 1081 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **27** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Opportunity Fund | (Cont.) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Dryden CLO Ltd. |  |  |
|  0.000% due 07/17/2031 ~ | 14311 | 6855 |
|  First Franklin Mortgage Loan Trust  | First Franklin Mortgage Loan Trust  | First Franklin Mortgage Loan Trust  |
|  4.709% due 10/25/2036 •  | 2918 | 1992 |
|  Fremont Home Loan Trust |  |  |
|  4.539% due 01/25/2037 ~ | 5450 | 2490 |
|  4.869% due 02/25/2036 •  | 12460 | 8086 |
|  Glacier Funding CDO Ltd. |  |  |
|  4.778% due 08/04/2035 ~ | 7164 | 930 |
|  Grosvenor Place CLO BV |  |  |
|  0.000% due 04/30/2029 ~ | 750 | 141 |
|  GSAMP Trust |  |  |
|  4.529% due 12/25/2036 ~ | 1339 | 726 |
|  Home Equity Mortgage Loan Asset-Backed Trust | Home Equity Mortgage Loan Asset-Backed Trust | Home Equity Mortgage Loan Asset-Backed Trust |
|  4.549% due 07/25/2037 ~ | 2560 | 1384 |
|  JP Morgan Mortgage Acquisition Trust | JP Morgan Mortgage Acquisition Trust | JP Morgan Mortgage Acquisition Trust |
|  6.330% due 07/25/2036 ^þ | 100 | 30 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  6.790% due 06/24/2046 þ | 373 | 402 |
|  LNR CDO Ltd. | LNR CDO Ltd. | LNR CDO Ltd. |
|  4.669% due 02/28/2043 ~ | 3231 | 52 |
|  Long Beach Mortgage Loan Trust | Long Beach Mortgage Loan Trust | Long Beach Mortgage Loan Trust |
|  4.989% due 01/25/2036 •  | 4251 | 3856 |
|  Marlette Funding Trust | Marlette Funding Trust | Marlette Funding Trust |
|  0.000% due 09/17/2029 «(f) | 15 | 1174 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  3.881% due 03/25/2037 þ | 6069 | 1420 |
|  Morgan Stanley ABS Capital, Inc. Trust | Morgan Stanley ABS Capital, Inc. Trust | Morgan Stanley ABS Capital, Inc. Trust |
|  4.539% due 10/25/2036 ~ | 5765 | 2853 |
|  Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust |
|  6.250% due 02/25/2037 ^~ | 773 | 365 |
|  N-Star REL CDO Ltd. |  |  |
|  4.540% due 02/01/2041 •  | 468 | 466 |
|  Orient Point CDO Ltd. |  |  |
|  4.013% due 10/03/2045 •  | 57125 | 19108 |
|  4.013% due 10/03/2045 ~ | 57300 | 19166 |
|  Renaissance Home Equity Loan Trust | Renaissance Home Equity Loan Trust | Renaissance Home Equity Loan Trust |
|  5.612% due 04/25/2037 þ | 11496 | 3476 |
|  7.238% due 09/25/2037 ^þ | 7971 | 3741 |
|  Securitized Asset-Backed Receivables LLC Trust | Securitized Asset-Backed Receivables LLC Trust | Securitized Asset-Backed Receivables LLC Trust |
|  4.809% due 03/25/2036 ~ | 11074 | 10172 |
|  SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust |
|  0.000% due 10/28/2029 «(f) | 8 | 4688 |
|  SLM Student Loan Trust |  |  |
|  0.000% due 01/25/2042 «(f) | 7 | 2394 |
|  SMB Private Education Loan Trust | SMB Private Education Loan Trust | SMB Private Education Loan Trust |
|  0.000% due 09/18/2046 «(f) | 3 | 900 |
|  0.000% due 10/15/2048 «(f) | 3 | 1020 |
|  Sofi Professional Loan Program LLC | Sofi Professional Loan Program LLC | Sofi Professional Loan Program LLC |
|  0.000% due 05/25/2040 (f) | 7500 | 760 |
|  0.000% due 07/25/2040 «(f) | 38 | 457 |
|  SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC |
|  0.000% due 09/25/2040 «(f) | 3226 | 441 |
|  South Coast Funding Ltd. | South Coast Funding Ltd. | South Coast Funding Ltd. |
|  5.192% due 08/10/2038 •  | 18693 | 1468 |
|  Structured Asset Investment Loan Trust | Structured Asset Investment Loan Trust | Structured Asset Investment Loan Trust |
|  5.364% due 06/25/2035 ~ | 6263 | 4803 |
|  Symphony CLO Ltd. | Symphony CLO Ltd. | Symphony CLO Ltd. |
|  8.611% due 07/14/2026 •  | 3600 | 3427 |
|  Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. |
|  4.892% due 12/05/2036 •  | 10299 | 9090 |
|  4.912% due 08/05/2036 •  | 469 | 418 |
|  4.912% due 08/05/2036 ^~ | 9083 | 8107 |
|  Total Asset-Backed Securities<br>(Cost $218,846) | Total Asset-Backed Securities<br>(Cost $218,846) | &nbsp;&nbsp;&nbsp;&nbsp;137429 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| SOVEREIGN ISSUES 2.6% | SOVEREIGN ISSUES 2.6% | SOVEREIGN ISSUES 2.6% |
|  Argentina Government International Bond | Argentina Government International Bond | Argentina Government International Bond |
|  0.500% due 07/09/2030 þ | 9499 | 2198 |
|  1.000% due 07/09/2029 | 1352 | 362 |
|  1.400% due 03/25/2023 | 175495 | 533 |
|  1.500% due 07/09/2035 þ | 9460 | 2143 |
|  1.500% due 07/09/2046 þ | 115 | 30 |
|  3.500% due 07/09/2041 þ | 17491 | 5015 |
|  3.875% due 01/09/2038 þ(l) | 22691 | 7225 |
|  15.500% due 10/17/2026 | 92410 | 72 |
|  Ghana Government International Bond | Ghana Government International Bond | Ghana Government International Bond |
|  6.375% due 02/11/2027 ^(c) | 1100 | 426 |
|  7.875% due 02/11/2035 ^(c) | 1300 | 471 |
|  8.750% due 03/11/2061 ^(c) | 400 | 142 |
|  10.750% due 10/14/2030 ^ | 800 | 566 |
|  Provincia de Buenos Aires | Provincia de Buenos Aires | Provincia de Buenos Aires |
|  72.913% due 04/12/2025 | 857105 | 2365 |
|  Russia Government International Bond | Russia Government International Bond | Russia Government International Bond |
|  5.625% due 04/04/2042 ^(c) | 13400 | 8509 |
|  5.875% due 09/16/2043 ^(c) | 200 | 119 |
|  12.750% due 06/24/2028 ^(c) | 100 | 78 |
|  State Agency of Roads of Ukraine | State Agency of Roads of Ukraine | State Agency of Roads of Ukraine |
|  6.250% due 06/24/2030 | 1300 | 230 |
|  Ukraine Government International Bond | Ukraine Government International Bond | Ukraine Government International Bond |
|  4.375% due 01/27/2032 ^(c) | 17523 | 3493 |
|  7.750% due 09/01/2024 ^(c) | 9800 | 2464 |
|  Venezuela Government International Bond | Venezuela Government International Bond | Venezuela Government International Bond |
|  8.250% due 10/13/2024 ^(c) | 70 | 6 |
|  9.250% due 09/15/2027 ^(c) | 598 | 57 |
|  Total Sovereign Issues (Cost $73,233) | Total Sovereign Issues (Cost $73,233) | &nbsp;&nbsp;&nbsp;&nbsp;36504 |
|  | **SHARES** |  |
| COMMON STOCKS 3.7% | COMMON STOCKS 3.7% | COMMON STOCKS 3.7% |
| COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% |
|  Clear Channel Outdoor Holdings, Inc. (d) | 1167686 | 1226 |
|  iHeartMedia, Inc. 'A' (d) | 275106 | 1686 |
|  iHeartMedia, Inc. 'B' «(d) | 213502 | 1178 |
|  |  | 4090 |
| CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% |  |
|  Promotora de Informaciones SA | 1233318 | 371 |
| ENERGY 0.1% |  |  |
|  Axis Energy Services 'A' «(d)(j) | 6085 | 212 |
|  Noble Corp. PLC (d) | 27545 | 1039 |
|  |  | 1251 |
| FINANCIALS 1.1% |  |  |
|  Banca Monte dei Paschi di Siena SpA (d) | 2152500 | 4435 |
|  Credit Suisse Group AG | 92485 | 276 |
|  Intelsat SA «(d)(j) | 459445 | 11027 |
|  |  | 15738 |
| INDUSTRIALS 2.2% |  |  |
|  Mcdermott International Ltd. (d) | 57729 | 18 |
|  Neiman Marcus Group Ltd. LLC «(d)(j) | 152491 | 26847 |
|  Syniverse Holdings, Inc. «(j) | 4987151 | 4793 |

---

---

| | | |
|:---|:---|:---|
|  | **SHARES** | **MARKET<br>VALUE<br>(000S)** |
|  Voyager Aviation Holdings LLC «(d) | 2841 | 0 |
|  Westmoreland Mining Holdings «(d)(j) | 45070 | 338 |
|  |  | 31996 |
| **REAL ESTATE 0.0%** | **REAL ESTATE 0.0%** | **REAL ESTATE 0.0%** |
|  Stearns Holding LLC 'B' «(d) | 42113 | 0 |
|  Total Common Stocks<br>(Cost $66,427) | Total Common Stocks<br>(Cost $66,427) | 53446 |
| **RIGHTS 0.0%** | **RIGHTS 0.0%** | **RIGHTS 0.0%** |
| FINANCIALS 0.0% |  |  |
|  Intelsat Jackson Holdings SA «(d) | 48585 | 328 |
|  Total Rights (Cost $0) |  | 328 |
| **WARRANTS 1.7%** | **WARRANTS 1.7%** | **WARRANTS 1.7%** |
| **FINANCIALS 0.0%** | **FINANCIALS 0.0%** | **FINANCIALS 0.0%** |
|  Guranteed Rate, Inc. - Exp. 12/31/2060 « | 202 | 0 |
|  Intelsat Emergence SA - Exp. 02/17/2027 « | 1383 | 5 |
|  Intelsat Jackson Holdings SA - Exp. 12/05/2025 « | 48071 | 360 |
|  |  | 365 |
| **INFORMATION TECHNOLOGY 1.7%** | **INFORMATION TECHNOLOGY 1.7%** | **INFORMATION TECHNOLOGY 1.7%** |
|  Windstream Holdings LLC - Exp. 9/21/2055 « | 1181266 | 23913 |
|  Total Warrants (Cost $19,985) | Total Warrants (Cost $19,985) | 24278 |
| PREFERRED SECURITIES 2.6% | PREFERRED SECURITIES 2.6% | PREFERRED SECURITIES 2.6% |
| BANKING & FINANCE 2.3% | BANKING & FINANCE 2.3% | BANKING & FINANCE 2.3% |
|  AGFC Capital Trust | AGFC Capital Trust | AGFC Capital Trust |
|  5.829% (US0003M + 1.750%) due 01/15/2067 ~(l) | 1800000 | 1009 |
|  Brighthouse Holdings LLC | Brighthouse Holdings LLC | Brighthouse Holdings LLC |
|  6.500% due 07/27/2037 þ(h) | 110000 | 98 |
|  Charles Schwab Corp. | Charles Schwab Corp. | Charles Schwab Corp. |
|  4.000% due 12/01/2030 •(h) | 100000 | 80 |
|  Compeer Financial ACA | Compeer Financial ACA | Compeer Financial ACA |
|  4.875% due 08/15/2026 •(h) | 4400000 | 4375 |
|  Farm Credit Bank of Texas |  |  |
|  5.700% due 09/15/2025 •(h) | 1000000 | 930 |
|  Stichting AK Rabobank Certificaten |  |  |
|  6.500% due 12/29/2049 þ(h) | 25700000 | 26457 |
|  |  | 32949 |
| INDUSTRIALS 0.3% |  |  |
|  Voyager Aviation Holdings LLC « | 17047 | 4575 |
|  Total Preferred Securities (Cost $48,350) | Total Preferred Securities (Cost $48,350) | 37524 |
| REAL ESTATE INVESTMENT TRUSTS 0.7% | REAL ESTATE INVESTMENT TRUSTS 0.7% | REAL ESTATE INVESTMENT TRUSTS 0.7% |
| REAL ESTATE 0.7% | REAL ESTATE 0.7% | REAL ESTATE 0.7% |
|  CBL & Associates Properties, Inc. | 11978 | 277 |
|  Uniti Group, Inc. | 572252 | 3165 |
|  VICI Properties, Inc. | 210228 | 6811 |
|  Total Real Estate Investment Trusts<br>(Cost $5,302) | Total Real Estate Investment Trusts<br>(Cost $5,302) | &nbsp;&nbsp;&nbsp;&nbsp;10253 |

---

---

| | | |
|:---|:---|:---|
| 28.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  |  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| SHORT-TERM INSTRUMENTS 8.9% | SHORT-TERM INSTRUMENTS 8.9% | SHORT-TERM INSTRUMENTS 8.9% | SHORT-TERM INSTRUMENTS 8.9% | SHORT-TERM INSTRUMENTS 8.9% |
| REPURCHASE AGREEMENTS (k) 7.9% | REPURCHASE AGREEMENTS (k) 7.9% | REPURCHASE AGREEMENTS (k) 7.9% | REPURCHASE AGREEMENTS (k) 7.9% | REPURCHASE AGREEMENTS (k) 7.9% |
|  |  |  | $— | &nbsp;&nbsp;&nbsp;&nbsp;112093 |
| ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% |
|  19.474% due 05/19/2023 - 06/16/2023 (e)(f)(g) | ARS | 278198 |  | 845 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| U.S. TREASURY BILLS 0.9% | U.S. TREASURY BILLS 0.9% | U.S. TREASURY BILLS 0.9% | U.S. TREASURY BILLS 0.9% | U.S. TREASURY BILLS 0.9% |
|  4.045% due 01/05/2023 - 03/02/2023 (e)(f)(o) | $— | 13025 | $— | 12982 |
| Total Short-Term Instruments<br>(Cost $126,041) | Total Short-Term Instruments<br>(Cost $126,041) | Total Short-Term Instruments<br>(Cost $126,041) |  | 125920 |
| Total Investments in Securities<br>(Cost $2,433,056) | Total Investments in Securities<br>(Cost $2,433,056) | Total Investments in Securities<br>(Cost $2,433,056) | $— | &nbsp;&nbsp;&nbsp;&nbsp;2029050 |
| Total Investments 142.5%<br>(Cost $2,433,056) | Total Investments 142.5%<br>(Cost $2,433,056) | Total Investments 142.5%<br>(Cost $2,433,056) | $— | 2029050 |

---

---

| | | |
|:---|:---|:---|
|  | **MARKET<br>VALUE<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Financial Derivative<br>Instruments (m)(n) (0.5)%<br> (Cost or Premiums, net $(62126)) | $— | (6425) |
| Auction-Rate Preferred Shares (14.9)% |  | (212650) |
| Other Assets and Liabilities, net (27.1)% |  | (386148) |
| Net Assets Applicable to Common Shareholders 100.0% | $— | &nbsp;&nbsp;&nbsp;&nbsp;1423827 |

---

#### NOTES TO SCHEDULE OF INVESTMENTS:&nbsp;&nbsp;&nbsp;&nbsp;
\* A zero balance may reflect actual amounts rounding to less than one thousand. 

---

| | |
|:---|:---|
| ^ | Security is in default.  |

---

---

| | |
|:---|:---|
| « | Security valued using significant unobservable inputs (Level 3).  |

---

---

| | |
|:---|:---|
| µ | All or a portion of this amount represents unfunded loan commitments. The interest rate for the unfunded portion will be determined at the time of funding. See Note 4, Securities and Other Investments, in the Notes to Financial Statements for more information regarding unfunded loan commitments.  |

---

---

| | |
|:---|:---|
| ~ | Variable or Floating rate security. Rate shown is the rate in effect as of period end. Certain variable rate securities are not based on a published reference rate and spread, rather are determined by the issuer or agent and are based on current market conditions. Reference rate is as of reset date, which may vary by security. These securities may not indicate a reference rate and/or spread in their description.  |

---

• Rate shown is the rate in effect as of period end. The rate may be based on a fixed rate, a capped rate or a floor rate and may convert to a variable or floating rate in the future. These securities do not indicate a reference rate and spread in their description. 

---

| | |
|:---|:---|
| þ | Coupon represents a rate which changes periodically based on a predetermined schedule or event. Rate shown is the rate in effect as of period end.  |

---

(a) Security is an Interest Only ("IO") or IO Strip. 

(b) Payment in-kind security. 

(c) Security is not accruing income as of the date of this report. 

(d) Security did not produce income within the last twelve months. 

(e) Coupon represents a weighted average yield to maturity. 

(f) Zero coupon security. 

(g) Principal amount of security is adjusted for inflation. 

(h) Perpetual maturity; date shown, if applicable, represents next contractual call date. 

(i) Contingent convertible security. 

&nbsp;&nbsp;&nbsp;&nbsp;(j) RESTRICTED SECURITIES:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Issuer Description | Acquisition<br>Date | Cost | Market<br>Value | **Market Value**<br> **as Percentage**<br> **of Net Assets**<br> **Applicable**<br> **to Common**<br> **Shareholders** |
|  Axis Energy Services 'A' | 07/01/2021 | $89 | $212 | 0.01% |
|  Intelsat SA | 06/19/2017 - 02/23/2022 | 31412 | 11027 | 0.77 |
|  Neiman Marcus Group Ltd. LLC | 09/25/2020 | 4911 | 26847 | 1.89 |
|  Oracle Corp. 4.100% due 03/25/2061 | 03/22/2021 - 10/05/2021 | 2737 | 1817 | 0.13 |
|  Syniverse Holdings, Inc. | 05/12/2022 - 11/30/2022 | 4894 | 4793 | 0.34 |
|  Westmoreland Mining Holdings | 07/29/2015 - 03/26/2019 | 1172 | 338 | 0.02 |
|  |  | $&nbsp;&nbsp;&nbsp;&nbsp;45215 | $&nbsp;&nbsp;&nbsp;&nbsp;45034 | 3.16% |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS
&nbsp;&nbsp;&nbsp;&nbsp;(k) REPURCHASE AGREEMENTS:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Lending<br>Rate | Settlement<br>Date | Maturity<br>Date | Principal<br>Amount | Collateralized By | Collateral<br>(Received) | Repurchase<br>Agreements,<br>at Value | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> |
| FICC | 1.900% | 12/30/2022 | 01/03/2023 | $893 | U.S. Treasury Bills 0.000% due 06/29/2023 | $(911) | $893 | $893 |
|  | 4.280 | 12/30/2022 | 01/03/2023 | &nbsp;&nbsp;&nbsp;&nbsp;111200 | U.S. Treasury Inflation Protected Securities 0.250% due 07/15/2029 | (113424) | 111200 | 111253 |
|  Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(114335) | $&nbsp;&nbsp;&nbsp;&nbsp;112093 | $&nbsp;&nbsp;&nbsp;&nbsp;112146 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 29.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Opportunity Fund | (Cont.) |

---

#### REVERSE REPURCHASE AGREEMENTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Counterparty | **Borrowing**<br> **Rate<sup>(2)</sup>** | **Settlement**<br> **Date** | **Maturity**<br> **Date** | **Amount<br>Borrowed<sup>(2)</sup>** | Payable for<br>Reverse<br>Repurchase<br>Agreements |
|  BOS | 3.760% | 09/12/2022 | 01/10/2023 | $(2353) | $&nbsp;&nbsp;&nbsp;&nbsp;(2381) |
|  BPS | 3.550 | 08/18/2022 | 02/02/2023 | (710) | (720) |
|  | 3.640 | 10/27/2022 | 02/13/2023 | (1720) | (1732) |
|  | 3.760 | 08/31/2022 | 02/13/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(2876) | (2913) |
|  | 3.760 | 10/20/2022 | 02/13/2023 | (2563) | (2583) |
|  | 3.760 | 11/15/2022 | 02/13/2023 | (1877) | (1886) |
|  | 3.760 | 11/29/2022 | 02/13/2023 | (1442) | (1447) |
|  | 3.900 | 10/27/2022 | 03/02/2023 | (742) | (748) |
|  | 3.900 | 11/08/2022 | 03/02/2023 | (945) | (951) |
|  | 3.935 | 10/27/2022 | 03/01/2023 | (1210) | (1219) |
|  | 4.420 | 10/07/2022 | 01/09/2023 | (8136) | (8224) |
|  | 4.450 | 10/31/2022 | 02/03/2023 | (698) | (704) |
|  | 4.500 | 11/14/2022 | 01/17/2023 | (3151) | (3171) |
|  | 4.600 | 09/22/2022 | 03/23/2023 | (18643) | (18889) |
|  | 4.600 | 10/19/2022 | 01/19/2023 | (1940) | (1959) |
|  | 4.600 | 11/14/2022 | 01/19/2023 | (6598) | (6640) |
|  | 4.620 | 09/23/2022 | 03/23/2023 | (9358) | (9480) |
|  | 4.650 | 11/21/2022 | 01/27/2023 | (2587) | (2602) |
|  | 4.720 | 10/27/2022 | 01/30/2023 | (6556) | (6615) |
|  | 4.720 | 10/31/2022 | 02/03/2023 | (2676) | (2698) |
|  | 4.720 | 11/08/2022 | 01/30/2023 | (1261) | (1270) |
|  | 4.720 | 11/08/2022 | 01/31/2023 | (1576) | (1587) |
|  | 4.720 | 12/12/2022 | 01/30/2023 | (629) | (631) |
|  | 4.720 | 12/22/2022 | 01/30/2023 | (415) | (416) |
|  | 4.970 | 11/14/2022 | 02/10/2023 | (1200) | (1208) |
|  | 4.970 | 11/18/2022 | 02/10/2023 | (1647) | (1658) |
|  BRC | 7.000 | 12/21/2022 | TBD<sup>(3)</sup> | (4053) | (4340) |
|  BYR | 4.950 | 09/26/2022 | 03/24/2023 | $&nbsp;&nbsp;&nbsp;&nbsp;(14837) | (14956) |
|  | 4.960 | 10/03/2022 | 04/03/2023 | (18892) | (19067) |
|  | 4.960 | 10/06/2022 | 04/03/2023 | (829) | (836) |
|  | 4.960 | 10/11/2022 | 04/11/2023 | (5611) | (5659) |
|  | 4.960 | 11/29/2022 | 04/03/2023 | (6522) | (6550) |
|  CDC | 3.270 | 07/14/2022 | 01/09/2023 | (7619) | (7739) |
|  | 3.270 | 11/14/2022 | 01/09/2023 | (670) | (673) |
|  | 3.990 | 09/06/2022 | 03/03/2023 | (7291) | (7387) |
|  | 3.990 | 11/09/2022 | 03/03/2023 | (931) | (936) |
|  | 4.170 | 10/06/2022 | 01/04/2023 | (945) | (955) |
|  | 4.170 | 12/14/2022 | 01/04/2023 | (1314) | (1317) |
|  | 4.450 | 10/14/2022 | 02/13/2023 | (3750) | (3787) |
|  | 4.450 | 10/28/2022 | 01/30/2023 | (1000) | (1008) |
|  | 4.450 | 10/31/2022 | 01/30/2023 | (17973) | (18116) |
|  | 4.450 | 11/01/2022 | 01/30/2023 | (1222) | (1231) |
|  | 4.450 | 11/08/2022 | 01/30/2023 | (1208) | (1216) |
|  | 4.550 | 10/13/2022 | 02/10/2023 | (9816) | (9917) |
|  | 4.600 | 11/18/2022 | 01/17/2023 | (3065) | (3083) |
|  | 4.620 | 10/14/2022 | 02/13/2023 | (23649) | (23894) |
|  | 4.620 | 11/01/2022 | 02/13/2023 | (1118) | (1127) |
|  | 4.620 | 11/02/2022 | 02/13/2023 | (4153) | (4186) |
|  | 4.640 | 11/23/2022 | 02/13/2023 | (3828) | (3848) |
|  | 4.650 | 10/28/2022 | 04/06/2023 | (1000) | (1009) |
|  | 4.680 | 11/14/2022 | 02/13/2023 | (2788) | (2806) |
|  | 4.680 | 11/15/2022 | 02/13/2023 | (1182) | (1189) |
|  | 4.730 | 10/31/2022 | 01/30/2023 | (6826) | (6884) |
|  | 4.730 | 11/15/2022 | 01/30/2023 | (4327) | (4355) |
|  | 4.730 | 11/23/2022 | 01/30/2023 | (5069) | (5096) |
|  | 4.760 | 10/07/2022 | 04/05/2023 | (3684) | (3727) |
|  | 4.810 | 10/21/2022 | 02/17/2023 | (3288) | (3321) |
|  | 4.850 | 10/11/2022 | 04/06/2023 | (2728) | (2759) |
|  | 4.860 | 11/10/2022 | 02/10/2023 | (2140) | (2156) |
|  | 4.860 | 11/18/2022 | 02/07/2023 | (662) | (667) |
|  | 4.860 | 12/13/2022 | 02/10/2023 | (186) | (186) |
|  | 4.910 | 10/24/2022 | 02/21/2023 | (11702) | (11816) |
|  CEW | 2.400 | 08/05/2022 | TBD<sup>(3)</sup> | (3294) | (4012) |
|  CIB | 4.600 | 10/17/2022 | 01/17/2023 | $(235) | (237) |
|  DBL | 2.040 | 11/18/2022 | 02/06/2023 | (1355) | (1455) |
|  | 2.120 | 11/24/2022 | 02/22/2023 | (1025) | (1100) |
|  | 2.180 | 11/18/2022 | 02/06/2023 | (1706) | (1831) |
|  | 2.230 | 11/22/2022 | 02/20/2023 | (5032) | (5400) |

---

---

| | | |
|:---|:---|:---|
| **30** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Borrowing**<br> **Rate<sup>(2)</sup>** | **Settlement**<br> **Date** | **Maturity**<br> **Date** | **Amount<br>Borrowed<sup>(2)</sup>** | **Payable for<br>Reverse<br>Repurchase<br>Agreements** |
|  | 3.590% | 11/18/2022 | 02/06/2023 | (1268) | $&nbsp;&nbsp;&nbsp;&nbsp; (1540) |
|  IND | 4.530 | 10/28/2022 | 01/31/2023 | $(1877) | (1893) |
|  | 4.530 | 11/08/2022 | 01/31/2023 | (566) | (570) |
|  | 4.720 | 10/28/2022 | 01/31/2023 | (8354) | (8428) |
|  | 4.740 | 11/07/2022 | 01/31/2023 | (1206) | (1215) |
|  | 4.820 | 10/28/2022 | 01/31/2023 | (2101) | (2120) |
|  | 4.880 | 11/07/2022 | 03/07/2023 | (305) | (307) |
|  | 4.980 | 11/07/2022 | 03/07/2023 | (1628) | (1641) |
|  JML | 1.500 | 09/14/2022 | TBD<sup>(3)</sup> | (2201) | (2358) |
|  | 2.050 | 09/14/2022 | TBD<sup>(3)</sup> | (370) | (397) |
|  | 2.070 | 09/14/2022 | TBD<sup>(3)</sup> | (8136) | (8730) |
|  | 2.160 | 11/15/2022 | 02/15/2023 | (5950) | (6388) |
|  | 2.160 | 11/22/2022 | 02/20/2023 | (2353) | (2525) |
|  | 2.200 | 11/24/2022 | 02/22/2023 | (3186) | (3419) |
|  MBC | 2.050 | 11/02/2022 | TBD<sup>(3)</sup> | (15552) | (16690) |
|  MEI | 3.860 | 10/11/2022 | 02/28/2023 | $(561) | (566) |
|  | 3.860 | 10/26/2022 | 02/28/2023 | (2897) | (2919) |
|  | 4.350 | 10/07/2022 | 01/09/2023 | (286) | (289) |
|  | 4.700 | 11/04/2022 | 02/13/2023 | (2573) | (2594) |
|  | 4.700 | 11/09/2022 | 02/13/2023 | (1409) | (1419) |
|  | 4.720 | 10/24/2022 | 01/27/2023 | (1284) | (1296) |
|  | 4.720 | 11/09/2022 | 01/27/2023 | (2554) | (2572) |
|  | 4.770 | 10/24/2022 | 01/27/2023 | (1785) | (1802) |
|  RDR | 4.260 | 10/06/2022 | 02/03/2023 | (874) | (883) |
|  | 4.430 | 10/26/2022 | 01/30/2023 | (8295) | (8365) |
|  | 4.430 | 11/23/2022 | 01/30/2023 | (1507) | (1514) |
|  | 4.500 | 10/31/2022 | 01/30/2023 | (2020) | (2036) |
|  | 4.600 | 11/04/2022 | 02/03/2023 | (11354) | (11441) |
|  | 4.700 | 11/10/2022 | 02/10/2023 | (1386) | (1396) |
|  | 4.700 | 12/09/2022 | 01/30/2023 | (714) | (716) |
|  SCX | 2.020 | 11/10/2022 | 02/09/2023 | (602) | (647) |
|  | 4.530 | 10/07/2022 | 04/06/2023 | $(4889) | (4943) |
|  SOG | 3.830 | 10/24/2022 | 02/17/2023 | (2035) | (2051) |
|  | 3.980 | 09/12/2022 | 01/12/2023 | (936) | (947) |
|  | 4.250 | 09/15/2022 | 01/13/2023 | (501) | (507) |
|  | 4.250 | 11/16/2022 | 01/13/2023 | (1050) | (1056) |
|  | 4.340 | 10/06/2022 | 02/06/2023 | (980) | (991) |
|  | 4.360 | 09/30/2022 | 01/30/2023 | (5618) | (5683) |
|  | 4.390 | 11/14/2022 | 01/27/2023 | (1629) | (1639) |
|  | 4.540 | 12/12/2022 | 02/06/2023 | (7691) | (7712) |
|  | 4.620 | 10/13/2022 | 02/13/2023 | (3022) | (3054) |
|  | 4.640 | 10/14/2022 | 02/14/2023 | (439) | (443) |
|  | 4.640 | 11/07/2022 | 02/14/2023 | (5785) | (5828) |
|  | 4.640 | 11/15/2022 | 02/14/2023 | (2029) | (2042) |
|  | 4.660 | 11/16/2022 | 01/24/2023 | (1050) | (1056) |
|  | 4.750 | 10/31/2022 | 01/31/2023 | (810) | (816) |
|  | 4.750 | 11/16/2022 | 01/31/2023 | (1050) | (1056) |
|  | 4.760 | 10/17/2022 | 02/17/2023 | (1383) | (1397) |
|  | 4.790 | 11/02/2022 | 02/02/2023 | (7566) | (7628) |
|  | 4.790 | 11/07/2022 | 02/02/2023 | (1928) | (1943) |
|  | 4.820 | 11/30/2022 | 02/22/2023 | (1032) | (1036) |
|  | 4.830 | 11/04/2022 | 02/06/2023 | (4678) | (4716) |
|  | 4.830 | 11/16/2022 | 02/06/2023 | (990) | (996) |
|  | 4.900 | 10/12/2022 | 04/12/2023 | (7690) | (7777) |
|  UBS | 2.110 | 11/24/2022 | 02/22/2023 | (4012) | (4305) |
|  | 4.220 | 09/19/2022 | 01/19/2023 | $(5658) | (5729) |
|  Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | $&nbsp;&nbsp;&nbsp;&nbsp;(460193) |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS SUMMARY
The following is a summary by counterparty of the market value of Borrowings and Other Financing Transactions and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> | Payable for<br>Reverse<br>Repurchase<br>Agreements | Payable for<br>Sale-Buyback<br>Transactions | Total<br>Borrowings and<br>Other Financing<br>Transactions | Collateral<br>Pledged/(Received) | Net Exposure<sup>(4)</sup> |
|  Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement |
|  BOS | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $(2381) | $0 | $(2381) | $2621 | $240 |
|  BPS | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(81951) | &nbsp;&nbsp;&nbsp;&nbsp;0 | &nbsp;&nbsp;&nbsp;&nbsp;(81951) | &nbsp;&nbsp;&nbsp;&nbsp;96417 | &nbsp;&nbsp;&nbsp;&nbsp;14466 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **31** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Opportunity Fund | (Cont.) |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup>** | **Payable for<br>Reverse<br>Repurchase<br>Agreements** | **Payable for<br>Sale-Buyback<br>Transactions** | **Total<br>Borrowings and<br>Other Financing<br>Transactions** | **Collateral<br>Pledged/(Received)** | **Net Exposure<sup>(4)</sup>** |
|  BRC | $0 | $(4340) | $0 | $(4340) | $4188 | $(152) |
|  BYR | 0 | (47068) | 0 | (47068) | 55845 | 8777 |
|  CDC | 0 | (136391) | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(136391) | 153158 | &nbsp;&nbsp;&nbsp;&nbsp;16767 |
|  CEW | 0 | (4012) | 0 | (4012) | 3714 | (298) |
|  CIB | 0 | (237) | 0 | (237) | 277 | 40 |
|  DBL | 0 | (11326) | 0 | (11326) | 13227 | 1901 |
|  FICC | 112146 | 0 | 0 | 112146 | &nbsp;&nbsp;&nbsp;&nbsp;(114335) | (2189) |
|  IND | 0 | (16174) | 0 | (16174) | 18963 | 2789 |
|  JML | 0 | (23817) | 0 | (23817) | 26047 | 2230 |
|  MBC | 0 | (16690) | 0 | (16690) | 18246 | 1556 |
|  MEI | 0 | (13457) | 0 | (13457) | 15765 | 2308 |
|  RDR | 0 | (26351) | 0 | (26351) | 27335 | 984 |
|  SCX | 0 | (5590) | 0 | (5590) | 5939 | 349 |
|  SOG | 0 | (60374) | 0 | (60374) | 70806 | 10432 |
|  UBS | 0 | (10034) | 0 | (10034) | 11286 | 1252 |
|  Total Borrowings and Other Financing Transactions | $&nbsp;&nbsp;&nbsp;&nbsp;112146 | $&nbsp;&nbsp;&nbsp;&nbsp;(460193) | $&nbsp;&nbsp;&nbsp;&nbsp;0 |  |  |  |

---

#### CERTAIN TRANSFERS ACCOUNTED FOR AS SECURED BORROWINGS

#### Remaining Contractual Maturity of the Agreements

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Overnight and<br>Continuous | Up to 30 days | 31-90 days | Greater Than 90 days | Total |
|  Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements |
|  Corporate Bonds & Notes | $0 | $(120500) | $(250313) | $(88063) | $(458876) |
|  U.S. Government Agencies | 0 | (237) | 0 | 0 | (237) |
|  Sovereign Issues | 0 | (289) | 0 | 0 | (289) |
|  Preferred Securities | 0 | 0 | 0 | (791) | (791) |
|  Total Borrowings | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(121026) | $&nbsp;&nbsp;&nbsp;&nbsp;(250313) | $&nbsp;&nbsp;&nbsp;&nbsp;(88854) | $(460193) |
|  Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | $&nbsp;&nbsp;&nbsp;&nbsp;(460193) |

---

(l) Securities with an aggregate market value of $536,501 and cash of $755 have been pledged as collateral under the terms of the above master agreements as of December 31, 2022. 

<sup>(1)</sup> Includes accrued interest. 

<sup>(2)</sup> The average amount of borrowings outstanding during the period ended December 31, 2022 was $(590692) at a weighted average interest rate of 2.673%. Average borrowings may include reverse repurchase agreements and sale-buyback transactions, if held during the period. 

<sup>(3)</sup> Open maturity reverse repurchase agreement. 

<sup>(4)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from borrowings and other financing transactions can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

&nbsp;&nbsp;&nbsp;&nbsp;(m) FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Variation Margin | Variation Margin |
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Asset | Liability |
|  Atlantia SPA | 1.000% | Quarterly | 12/20/2025 | 1.872% | 1000 | $&nbsp;&nbsp;&nbsp;&nbsp;(45) | $&nbsp;&nbsp;&nbsp;&nbsp;20 | $&nbsp;&nbsp;&nbsp;&nbsp;(25) | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 |
|  Atlantia SpA | 1.000 | Quarterly | 06/20/2026 | 2.054 | 4500 | (155) | (4) | (159) | 0 | (3) |
|  Boeing Co. | 1.000 | Quarterly | 12/20/2024 | 1.077 | $1200 | (20) | 19 | (1) | 0 | 0 |
|  Boeing Co. | 1.000 | Quarterly | 06/20/2025 | 1.165 | 700 | (10) | 7 | (3) | 0 | 0 |
|  Boeing Co. | 1.000 | Quarterly | 12/20/2025 | 1.224 | 400 | (7) | 5 | (2) | 0 | 0 |
|  Boeing Co. | 1.000 | Quarterly | 06/20/2026 | 1.265 | 12700 | (231) | 130 | (101) | 2 | 0 |
|  Boeing Co. | 1.000 | Quarterly | 06/20/2027 | 1.357 | 9100 | (397) | 272 | (125) | 1 | 0 |
|  Bombardier, Inc. | 5.000 | Quarterly | 06/20/2024 | 2.622 | 5200 | (29) | 211 | 182 | 0 | (12) |
|  Bombardier, Inc. | 5.000 | Quarterly | 12/20/2024 | 2.780 | 1000 | (2) | 44 | 42 | 0 | 0 |
|  Bombardier, Inc. | 5.000 | Quarterly | 06/20/2025 | 3.222 | 200 | (15) | 23 | 8 | 0 | 0 |
|  Bombardier, Inc. | 5.000 | Quarterly | 06/20/2027 | 4.245 | 5300 | (619) | 775 | 156 | 0 | (5) |
|  Energy Transfer Operating LP | 1.000 | Quarterly | 06/20/2026 | 0.840 | 100 | (2) | 3 | 1 | 0 | 0 |

---

---

| | | |
|:---|:---|:---|
| **32** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value<sup>(4)</sup>** | **Variation Margin** | **Variation Margin** |
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value<sup>(4)</sup>** | **Asset** | **Liability** |
|  Jaguar Land Rover Automotive | 5.000% | Quarterly | 06/20/2026 | 9.564% | 300 | $21 | $(59) | $(38) | $0 | $0 |
|  Jaguar Land Rover Automotive | 5.000 | Quarterly | 12/20/2026 | 9.896 | 11447 | 424 | (2134) | (1710) | 8 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 12/20/2025 | 2.767 | 16300 | (2597) | 1764 | (833) | 1 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 06/20/2026 | 2.993 | 11400 | (853) | 101 | (752) | 0 | (5) |
|  Rolls-Royce PLC | 1.000 | Quarterly | 06/20/2027 | 3.357 | 6100 | (460) | (128) | (588) | 0 | (5) |
|  The GAP, Inc. | 1.000 | Quarterly | 06/20/2027 | 5.744 | $16800 | (3173) | 367 | (2806) | 36 | 0 |
|  |  |  |  |  |  | $(8170) | $1416 | $(6754) | $48 | $(30) |

---

#### CREDIT DEFAULT SWAPS ON CREDIT INDICES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Index/Tranches** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Variation Margin | Variation Margin |
| **Index/Tranches** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Asset | Liability |
|  iTraxx Asia Ex-Japan 38 5-Year Index | 1.000% | Quarterly | 12/20/2027 | $17600 | $&nbsp;&nbsp;&nbsp;&nbsp;(632) | $&nbsp;&nbsp;&nbsp;&nbsp;389 | $&nbsp;&nbsp;&nbsp;&nbsp;(243) | $&nbsp;&nbsp;&nbsp;&nbsp;10 | $&nbsp;&nbsp;&nbsp;&nbsp;0 |

---

#### INTEREST RATE SWAPS

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Pay/<br>Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | Variation Margin | Variation Margin |
| **Pay/<br>Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | Asset | Liability |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750% | Annual | 09/21/2032 | 15700 | $&nbsp;&nbsp;&nbsp;&nbsp;1524 | $&nbsp;&nbsp;&nbsp;&nbsp;3122 | $&nbsp;&nbsp;&nbsp;&nbsp;4646 | $&nbsp;&nbsp;&nbsp;&nbsp;12 | $&nbsp;&nbsp;&nbsp;&nbsp;0 |
|  Receive<sup>(5)</sup> | 1-Day GBP-SONIO Compounded-OIS | 2.000 | Annual | 03/15/2033 | 8000 | 891 | 472 | 1363 | 5 | 0 |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750 | Annual | 09/21/2052 | 3900 | 800 | 1538 | 2338 | 6 | 0 |
|  Receive | 1-Day USD-Federal Funds Rate Compounded-OIS | 0.100 | Annual | 01/13/2023 | $10000 | (1) | 183 | 182 | 5 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.450 | Annual | 12/20/2024 | 58200 | (4) | 870 | 866 | 30 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.350 | Annual | 01/17/2025 | 29400 | 3 | 433 | 436 | 11 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.300 | Annual | 01/17/2026 | 4600 | 2 | 108 | 110 | 4 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2027 | 83700 | (7417) | 775 | (6642) | 0 | (123) |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2029 | 386500 | (39813) | 2034 | (37779) | 173 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2032 | 69800 | (9546) | 417 | (9129) | 0 | (200) |
|  Receive | 1-Year BRL-CDI | 6.170 | Maturity | 01/02/2023 | 204900 | 1960 | (7) | 1953 | 1 | 0 |
|  Receive | 1-Year BRL-CDI | 12.670 | Maturity | 01/02/2023 | 6600 | 0 | 4 | 4 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.690 | Maturity | 01/02/2023 | 4400 | 0 | 3 | 3 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.740 | Maturity | 01/02/2023 | 11400 | 0 | 6 | 6 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.750 | Maturity | 01/02/2023 | 5500 | 0 | 3 | 3 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.760 | Maturity | 01/02/2023 | 11400 | 0 | 5 | 5 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.900 | Maturity | 01/02/2023 | 23300 | 0 | 6 | 6 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.930 | Maturity | 01/02/2023 | 2900 | 0 | 1 | 1 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.939 | Maturity | 01/02/2023 | 11600 | 0 | 2 | 2 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.946 | Maturity | 01/02/2023 | 29200 | 0 | 6 | 6 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.960 | Maturity | 01/02/2023 | 23300 | 0 | 4 | 4 | 0 | 0 |
|  Receive | 1-Year BRL-CDI | 12.970 | Maturity | 01/02/2023 | 38300 | 0 | 7 | 7 | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.140 | Maturity | 01/02/2025 | 2200 | 0 | (14) | (14) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.160 | Maturity | 01/02/2025 | 1500 | 0 | (9) | (9) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.350 | Maturity | 01/02/2025 | 1800 | 0 | (10) | (10) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 12.000 | Maturity | 01/02/2025 | 4900 | 0 | (14) | (14) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 12.080 | Maturity | 01/02/2025 | 8200 | 0 | (21) | (21) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 12.140 | Maturity | 01/02/2025 | 4100 | 0 | (9) | (9) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 12.145 | Maturity | 01/02/2025 | 4000 | 0 | (9) | (9) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 12.160 | Maturity | 01/02/2025 | 8200 | 0 | (18) | (18) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.220 | Maturity | 01/04/2027 | 2600 | 0 | (19) | (19) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.245 | Maturity | 01/04/2027 | 1300 | 0 | (9) | (9) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.260 | Maturity | 01/04/2027 | 1300 | 0 | (9) | (9) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.700 | Maturity | 01/04/2027 | 700 | 0 | (3) | (3) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.715 | Maturity | 01/04/2027 | 3000 | 0 | (14) | (14) | 0 | 0 |
|  Pay | 1-Year BRL-CDI | 11.870 | Maturity | 01/04/2027 | 7100 | 0 | (27) | (27) | 0 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.250 | Semi-Annual | 06/16/2024 | $10000 | 27 | 658 | 685 | 12 | 0 |
|  Pay | 3-Month USD-LIBOR | 2.750 | Semi-Annual | 06/17/2025 | 8580 | 541 | (901) | (360) | 0 | (13) |
|  Pay | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 06/15/2026 | 44400 | 2099 | (4973) | (2874) | 0 | (73) |
|  Receive | 3-Month USD-LIBOR | 0.500 | Semi-Annual | 06/16/2026 | 35000 | 544 | 3697 | 4241 | 41 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.360 | Semi-Annual | 02/15/2027 | 12450 | 0 | 1306 | 1306 | 19 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.600 | Semi-Annual | 02/15/2027 | 49800 | (171) | (4559) | (4730) | 0 | (75) |
|  Receive | 3-Month USD-LIBOR | 1.450 | Semi-Annual | 02/17/2027 | 20600 | 0 | 2083 | 2083 | 31 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.700 | Semi-Annual | 02/17/2027 | 82200 | (309) | (7153) | (7462) | 0 | (124) |
|  Receive | 3-Month USD-LIBOR | 1.420 | Semi-Annual | 02/24/2027 | 6000 | 0 | 613 | 613 | 9 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.650 | Semi-Annual | 02/24/2027 | 19900 | (72) | (1773) | (1845) | 0 | (31) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **33** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Opportunity Fund | (Cont.) |

---

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Notional<br>Amount** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value** | **Variation Margin** | **Variation Margin** |
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Notional<br>Amount** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value** | **Asset** | **Liability** |
|  Pay | 3-Month USD-LIBOR | 2.500% | Semi-Annual | 12/20/2027 |  | $73900 | $530 | $(5645) | $(5115) | $0 | $(127) |
|  Receive | 3-Month USD-LIBOR | 1.420 | Semi-Annual | 08/17/2028 |  | 47100 | 0 | 6057 | 6057 | 87 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.380 | Semi-Annual | 08/24/2028 |  | 71000 | 0 | 9272 | 9272 | 135 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.000 | Semi-Annual | 06/19/2029 |  | 263700 | 13372 | (27542) | (14170) | 0 | (569) |
|  Receive | 3-Month USD-LIBOR | 1.000 | Semi-Annual | 12/16/2030 |  | 1600 | (72) | 389 | 317 | 4 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.000 | Semi-Annual | 12/16/2030 |  | 2000 | (3) | 398 | 395 | 4 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.160 | Semi-Annual | 04/12/2031 |  | 6100 | 0 | 1202 | 1202 | 13 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.750 | Semi-Annual | 06/16/2031 |  | 19700 | 1395 | 3051 | 4446 | 47 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 12/15/2031 |  | 97600 | (1547) | 17189 | 15642 | 187 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.350 | Semi-Annual | 02/09/2032 |  | 128200 | 1004 | 23745 | 24749 | 306 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.500 | Semi-Annual | 06/19/2044 |  | 161500 | (5269) | 868 | (4401) | 120 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 12/11/2049 |  | 2200 | (3) | 513 | 510 | 11 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.000 | Semi-Annual | 01/15/2050 |  | 19800 | (143) | 5550 | 5407 | 95 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 01/22/2050 |  | 28200 | (65) | 9032 | 8967 | 132 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.875 | Semi-Annual | 02/07/2050 |  | 29300 | (113) | 8768 | 8655 | 141 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 03/12/2050 |  | 9800 | (29) | 2250 | 2221 | 51 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.250 | Semi-Annual | 12/16/2050 |  | 17000 | 1650 | 5343 | 6993 | 80 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.700 | Semi-Annual | 02/01/2052 |  | 144400 | 1028 | 46234 | 47262 | 0 | (184) |
|  Pay | 6-Month AUD-BBR-BBSW | 3.500 | Semi-Annual | 06/17/2025 |  | 13400 | 332 | (482) | (150) | 0 | (1) |
|  Receive | 6-Month EUR-EURIBOR | 0.150 | Annual | 03/18/2030 |  | 21400 | 392 | 4616 | 5008 | 81 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 0.250 | Annual | 09/21/2032 |  | 17200 | 1607 | 2972 | 4579 | 83 | 0 |
|  Receive<sup>(5)</sup> | 6-Month EUR-EURIBOR | 1.750 | Annual | 03/15/2033 |  | 1900 | 149 | 105 | 254 | 10 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 0.500 | Annual | 09/21/2052 |  | 8100 | 702 | 2865 | 3567 | 71 | 0 |
|  Receive<sup>(5)</sup> | 6-Month EUR-EURIBOR | 0.830 | Annual | 12/09/2052 |  | 22000 | 54 | 653 | 707 | 30 | 0 |
|  Pay | 28-Day MXN-TIIE | 4.550 | Lunar | 02/27/2023 |  | 84800 | 10 | (74) | (64) | 0 | (3) |
|  Pay | 28-Day MXN-TIIE | 4.500 | Lunar | 03/03/2023 |  | 184900 | (5) | (137) | (142) | 0 | (6) |
|  Receive | 28-Day MXN-TIIE | 8.675 | Lunar | 04/03/2024 |  | 27500 | 0 | 34 | 34 | 1 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.660 | Lunar | 04/04/2024 |  | 11400 | 0 | 14 | 14 | 0 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.750 | Lunar | 04/05/2024 |  | 8700 | 0 | 10 | 10 | 0 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.410 | Lunar | 03/31/2027 |  | 3300 | 0 | 3 | 3 | 0 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.730 | Lunar | 04/06/2027 |  | 3700 | 0 | 1 | 1 | 1 | 0 |
|  Receive | 28-Day MXN-TIIE | 7.495 | Lunar | 01/14/2032 |  | 1800 | 7 | 0 | 7 | 0 | 0 |
|  Receive | 28-Day MXN-TIIE | 7.498 | Lunar | 01/15/2032 |  | 7400 | 30 | (1) | 29 | 2 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.732 | Lunar | 03/30/2032 |  | 1800 | 0 | 0 | 0 | 0 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.701 | Lunar | 03/31/2032 |  | 4300 | 0 | 0 | 0 | 1 | 0 |
|  |  |  |  |  |  |  | $(33929) | $116058 | $82129 | $2052 | $(1529) |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(42731) | $&nbsp;&nbsp;&nbsp;&nbsp;117863 | $&nbsp;&nbsp;&nbsp;&nbsp;75132 | $&nbsp;&nbsp;&nbsp;&nbsp;2110 | $&nbsp;&nbsp;&nbsp;&nbsp;(1559) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED SUMMARY
The following is a summary of the market value and variation margin of Exchange-Traded or Centrally Cleared Financial Derivative Instruments as of December 31, 2022:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities |
|  | Market Value | Variation Margin<br>Asset | Variation Margin<br>Asset | Total | Market Value | Variation Margin<br>Liability | Variation Margin<br>Liability | Total |
|  | Purchased<br>Options | Futures | Swap<br>Agreements | Total | Written<br>Options | Futures | Swap<br>Agreements | Total |
|  Total Exchange-Traded or Centrally Cleared | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;2110 | $&nbsp;&nbsp;&nbsp;&nbsp;2110 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(1559) | $&nbsp;&nbsp;&nbsp;&nbsp;(1559) |

---

Cash of $70,458 has been pledged as collateral for exchange-traded and centrally cleared financial derivative instruments as of December 31, 2022. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information.

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate or sovereign issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> This instrument has a forward starting effective date. See Note 2, Securities Transactions and Investment Income, in the Notes to Financial Statements for further information. 

---

| | | |
|:---|:---|:---|
| **34** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

&nbsp;&nbsp;&nbsp;&nbsp;(n) FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER

#### FORWARD FOREIGN CURRENCY CONTRACTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | Currency to<br>be Received | Unrealized Appreciation/<br>(Depreciation) | Unrealized Appreciation/<br>(Depreciation) |
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | Currency to<br>be Received | Asset | Liability |
|  BOA | 01/2023 | $9426 | 13917 | $52 | $0 |
|  | 01/2023 | 14 | 6170 | 3 | 0 |
|  | 02/2023 | 6093 | $6433 | 0 | (186) |
|  | 02/2023 | $2460 | 24414 | 37 | 0 |
|  | 05/2023 | 2775 | $701 | 0 | (22) |
|  BPS | 02/2023 | $662 | 10403628 | 6 | 0 |
|  | 03/2023 | 3568 | $43 | 0 | 0 |
|  | 03/2023 | 98502 | 4887 | 0 | (98) |
|  | 03/2023 | 2531 | 651 | 0 | (11) |
|  BRC | 01/2023 | $1580 | 1486 | 11 | 0 |
|  | 02/2023 | 3131 | $3338 | 0 | (64) |
|  CBK | 01/2023 | 2721 | 2905 | 0 | (9) |
|  | 01/2023 | 621 | 154 | 0 | (9) |
|  | 01/2023 | $1062 | 1567 | 5 | 0 |
|  | 01/2023 | 137 | 130274 | 17 | 0 |
|  | 01/2023 | 634 | 2546 | 35 | 0 |
|  | 02/2023 | 10096 | $7391 | 0 | (67) |
|  | 03/2023 | 148675 | 7578 | 54 | 0 |
|  | 04/2023 | 19672 | 4918 | 0 | (218) |
|  | 04/2023 | $6847 | 27039 | 204 | 0 |
|  | 05/2023 | 3110 | $784 | 0 | (26) |
|  DUB | 01/2023 | 2526071 | 5587 | 0 | (1166) |
|  GLM | 01/2023 | $4332 | 23087 | 41 | 0 |
|  | 01/2023 | 16 | 6204 | 1 | 0 |
|  | 03/2023 | 11976 | 246200 | 484 | 0 |
|  | 04/2023 | 23087 | $4256 | 0 | (42) |
|  JPM | 01/2023 | 148851 | 28194 | 1 | 0 |
|  | 01/2023 | 7580 | 9153 | 0 | (12) |
|  | 01/2023 | $23733 | 125764 | 87 | 0 |
|  | 01/2023 | 11 | 77 | 0 | 0 |
|  | 01/2023 | 6365 | 2538774 | 422 | 0 |
|  | 02/2023 | 205 | $21 | 0 | 0 |
|  | 02/2023 | $1140 | 17969393 | 13 | 0 |
|  | 03/2023 | 29764172 | $1902 | 0 | (9) |
|  | 03/2023 | $20 | 138 | 0 | 0 |
|  MBC | 01/2023 | 226134 | $237029 | 0 | (5139) |
|  | 01/2023 | $94 | 141 | 1 | 0 |
|  | 01/2023 | 2133 | 2006 | 15 | 0 |
|  | 01/2023 | 1184 | 973 | 0 | (8) |
|  | 01/2023 | 7382 | 1005423 | 284 | 0 |
|  | 02/2023 | 5048 | 6690 | 0 | (106) |
|  | 03/2023 | 18065324 | $1154 | 0 | (5) |
|  MYI | 01/2023 | $3003 | 4472 | 42 | 0 |
|  | 01/2023 | 6306 | 863852 | 281 | 0 |
|  | 03/2023 | 25453713 | $1623 | 0 | (11) |
|  RBC | 01/2023 | $34 | 51 | 1 | 0 |
|  | 02/2023 | 3731 | 37225 | 75 | 0 |
|  SCX | 02/2023 | 1201 | 18907826 | 13 | 0 |
|  TOR | 01/2023 | 4590 | 105785 | 88 | 0 |
|  UAG | 01/2023 | 106254 | $4178 | 0 | (521) |
|  | 02/2023 | $1768 | 28062140 | 34 | 0 |
|  Total Forward Foreign Currency Contracts | Total Forward Foreign Currency Contracts |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;2307 | $&nbsp;&nbsp;&nbsp;&nbsp;(7729) |

---

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE AND SOVEREIGN ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Swap Agreements,<br>at Value<sup>(4)</sup> | Swap Agreements,<br>at Value<sup>(4)</sup> |
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Asset | Liability |
| BPS | Petrobras Global Finance BV | 1.000% | Quarterly | 12/20/2024 | 1.522% | $1800 | $&nbsp;&nbsp;&nbsp;&nbsp;(351) | $&nbsp;&nbsp;&nbsp;&nbsp;334 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $(17) |
| BRC | Colombia Government International Bond | 1.000 | Quarterly | 12/20/2026 | 2.315 | 3500 | (160) | (1) | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(161) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **35** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Opportunity Fund | (Cont.) |

---

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Swap Agreements,<br>at Value<sup>(4)</sup>** | **Swap Agreements,<br>at Value<sup>(4)</sup>** |
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Asset** | **Liability** |
| GST | Equinix, Inc. | 5.000% | Quarterly | 06/20/2027 | 1.569% | $1000 | $140 | $(2) | $138 | $0 |
|  | Petrobras Global Finance BV | 1.000 | Quarterly | 12/20/2024 | 1.522 | 2400 | (476) | 454 | 0 | (22) |
| HUS | Petrobras Global Finance BV | 1.000 | Quarterly | 12/20/2024 | 1.522 | 3000 | (623) | 595 | 0 | (28) |
| JPM | Banca Monte Dei Paschi Di | 5.000 | Quarterly | 06/20/2025 | 4.967 | 300 | (6) | 7 | 1 | 0 |
|  |  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(1476) | $&nbsp;&nbsp;&nbsp;&nbsp;1387 | $&nbsp;&nbsp;&nbsp;&nbsp;139 | $&nbsp;&nbsp;&nbsp;&nbsp;(228) |

---

#### CREDIT DEFAULT SWAPS ON CREDIT INDICES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Index/Tranches** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Swap Agreements,<br>at Value<sup>(4)</sup> | Swap Agreements,<br>at Value<sup>(4)</sup> |
| **Counterparty** | **Index/Tranches** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Asset | Liability |
| BRC | ABX.HE.AAA.6-2 Index | 0.110% | Monthly | 05/25/2046 | $22769 | $(5689) | $5464 | $0 | $(225) |
| GST | ABX.HE.AA.6-1 Index | 0.320 | Monthly | 07/25/2045 | 8335 | (396) | (254) | 0 | (650) |
|  | ABX.HE.AAA.6-2 Index | 0.110 | Monthly | 05/25/2046 | 1926 | (479) | 460 | 0 | (19) |
| MEI | ABX.HE.AAA.6-2 Index | 0.110 | Monthly | 05/25/2046 | 26538 | (6602) | 6340 | 0 | (262) |
| MYC | ABX.HE.AAA.6-2 Index | 0.110 | Monthly | 05/25/2046 | 28891 | (4726) | 4440 | 0 | (286) |
|  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(17892) | $&nbsp;&nbsp;&nbsp;&nbsp;16450 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(1442) |

---

#### TOTAL RETURN SWAPS ON INTEREST RATE INDICES

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Pay/Receive<sup>(5)</sup>** | **Underlying<br>Reference** | **# of Units** | **Financing Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Swap Agreements,<br>at Value | Swap Agreements,<br>at Value |
| **Counterparty** | **Pay/Receive<sup>(5)</sup>** | **Underlying<br>Reference** | **# of Units** | **Financing Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Asset | Liability |
|  BOA | Receive | iBoxx USD Liquid High Yield Index  | N/A | 1.059% | Maturity | 03/20/2023 | $1000 | $(1) | $39 | $38 | $0 |
|  GST | Receive | iBoxx USD Liquid High Yield Index  | N/A | 1.058% | Maturity | 06/20/2023 | 3300 | (26) | (35) | 0 | (61) |
|  |  |  |  |  |  |  |  | $(27) | $4 | $38 | $(61) |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | $&nbsp;&nbsp;&nbsp;&nbsp;(19395) | $&nbsp;&nbsp;&nbsp;&nbsp;17841 | $&nbsp;&nbsp;&nbsp;&nbsp;177 | $&nbsp;&nbsp;&nbsp;&nbsp;(1731) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER SUMMARY
The following is a summary by counterparty of the market value of OTC financial derivative instruments and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | | | |
| Counterparty | Forward<br>Foreign<br>Currency<br>Contracts | Purchased<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Forward<br>Foreign<br>Currency<br>Contracts | Written<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Net Market<br>Value of OTC<br>Derivatives | Collateral<br>Pledged/<br>(Received) | Net<br>Exposure<sup>(6)</sup> |
|  BOA | $92 | $0 | $38 | $130 | $(208) | $0 | $0 | $(208) | $(78) | $272 | $194 |
|  BPS | 6 | 0 | 0 | 6 | (109) | 0 | (17) | (126) | (120) | 424 | 304 |
|  BRC | 11 | 0 | 0 | 11 | (64) | 0 | (386) | (450) | (439) | 489 | 50 |
|  CBK | 315 | 0 | 0 | 315 | (329) | 0 | 0 | (329) | (14) | 0 | (14) |
|  DUB | 0 | 0 | 0 | 0 | (1166) | 0 | 0 | (1166) | (1166) | 939 | (227) |
|  GLM | 526 | 0 | 0 | 526 | (42) | 0 | 0 | (42) | 484 | (540) | (56) |
|  GST | 0 | 0 | 138 | 138 | 0 | 0 | (752) | (752) | (614) | 553 | (61) |
|  HUS | 0 | 0 | 0 | 0 | 0 | 0 | (28) | (28) | (28) | 34 | 6 |
|  JPM | 523 | 0 | 1 | 524 | (21) | 0 | 0 | (21) | 503 | (270) | 233 |
|  MBC | 300 | 0 | 0 | 300 | (5258) | 0 | 0 | (5258) | &nbsp;&nbsp;&nbsp;&nbsp;(4958) | &nbsp;&nbsp;&nbsp;&nbsp;3831 | &nbsp;&nbsp;&nbsp;&nbsp;(1127) |
|  MEI | 0 | 0 | 0 | 0 | 0 | 0 | (262) | (262) | (262) | 286 | 24 |
|  MYC | 0 | 0 | 0 | 0 | 0 | 0 | (286) | (286) | (286) | 366 | 80 |
|  MYI | 323 | 0 | 0 | 323 | (11) | 0 | 0 | (11) | 312 | (263) | 49 |
|  RBC | 76 | 0 | 0 | 76 | 0 | 0 | 0 | 0 | 76 | 0 | 76 |
|  SCX | 13 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 13 | 0 | 13 |
|  TOR | 88 | 0 | 0 | 88 | 0 | 0 | 0 | 0 | 88 | 0 | 88 |
|  UAG | 34 | 0 | 0 | 34 | (521) | 0 | 0 | (521) | (487) | 555 | 68 |
|  Total Over the Counter | $&nbsp;&nbsp;&nbsp;&nbsp;2307 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;177 | $&nbsp;&nbsp;&nbsp;&nbsp;2484 | $&nbsp;&nbsp;&nbsp;&nbsp;(7729) | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(1731) | $&nbsp;&nbsp;&nbsp;&nbsp;(9460) |  |  |  |

---

(o) Securities with an aggregate market value of $7,750 have been pledged as collateral for financial derivative instruments as governed by International Swaps and Derivatives Association, Inc. master agreements as of December 31, 2022. 

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

---

| | | |
|:---|:---|:---|
| **36** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate or sovereign issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> Receive represents that the Fund receives payments for any positive net return on the underlying reference. The Fund makes payments for any negative net return on such underlying reference. Pay represents that the Fund receives payments for any negative net return on the underlying reference. The Fund makes payments for any positive net return on such underlying reference. 

<sup>(6)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from OTC financial derivative instruments can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

#### FAIR VALUE OF FINANCIAL DERIVATIVE INSTRUMENTS
The following is a summary of the fair valuation of the Fund's derivative instruments categorized by risk exposure. See Note 7, Principal and Other Risks, in the Notes to Financial Statements on risks of the Fund.

Fair Values of Financial Derivative Instruments on the Statements of Assets and Liabilities as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $58 | $0 | $0 | $2052 | $2110 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $2307 | $0 | $2307 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 139 | 0 | 0 | 38 | 177 |
|  | $0 | $139 | $0 | $2307 | $38 | $2484 |
|  | $0 | $197 | $0 | $2307 | $2090 | $4594 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $30 | $0 | $0 | $1529 | $1559 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $7729 | $0 | $7729 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 1670 | 0 | 0 | 61 | 1731 |
|  | $0 | $1670 | $0 | $7729 | $61 | $9460 |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;1700 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;7729 | $&nbsp;&nbsp;&nbsp;&nbsp;1590 | $&nbsp;&nbsp;&nbsp;&nbsp;11019 |

---

The effect of Financial Derivative Instruments on the Statements of Operations for the period ended December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $364 | $0 | $0 | $41600 | $41964 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $5853 | $0 | $5853 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | (14162) | 0 | 0 | 86 | &nbsp;&nbsp;&nbsp;&nbsp;(14076) |
|  | $0 | $(14162) | $0 | $5853 | $86 | $(8223) |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(13798) | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;5853 | $&nbsp;&nbsp;&nbsp;&nbsp;41686 | $33741 |
|  Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $6152 | $0 | $0 | $(21990) | $(15838) |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $(9042) | $0 | $(9042) |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 7951 | 0 | 0 | 79 | 8030 |
|  | $0 | $7951 | $0 | $(9042) | $79 | $(1012) |
|  | $0 | $14103 | $0 | $(9042) | $(21911) | $(16850) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 37.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Opportunity Fund | (Cont.) |

---

#### FAIR VALUE MEASUREMENTS
The following is a summary of the fair valuations according to the inputs used as of December 31, 2022 in valuing the Fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Category and Subcategory | Level 1 | Level 2 | Level 3 | Fair<br>Value<br>at 12/31/2022 |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;538721 | $&nbsp;&nbsp;&nbsp;&nbsp;108772 | $&nbsp;&nbsp;&nbsp;&nbsp;647493 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Banking & Finance | 0 | 203456 | 0 | 203456 |
| &nbsp;&nbsp; Industrials | 0 | 471406 | 0 | 471406 |
| &nbsp;&nbsp; Utilities | 0 | 82281 | 0 | 82281 |
|  Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes |
| &nbsp;&nbsp; Industrials | 0 | 3711 | 0 | 3711 |
|  Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes |
| &nbsp;&nbsp; California | 0 | 2765 | 0 | 2765 |
| &nbsp;&nbsp; Illinois | 0 | 5477 | 0 | 5477 |
| &nbsp;&nbsp; Puerto Rico | 0 | 8748 | 0 | 8748 |
| &nbsp;&nbsp; West Virginia | 0 | 5860 | 0 | 5860 |
|  U.S. Government Agencies | 0 | 16634 | 8392 | 25026 |
|  Non-Agency Mortgage-Backed Securities | 0 | 147145 | 0 | 147145 |
|  Asset-Backed Securities | 0 | 126355 | 11074 | 137429 |
|  Sovereign Issues | 0 | 36504 | 0 | 36504 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | &nbsp;&nbsp;&nbsp;&nbsp;2912 | 0 | 1178 | 4090 |
| &nbsp;&nbsp; Consumer Staples | 371 | 0 | 0 | 371 |
| &nbsp;&nbsp; Energy | 1039 | 0 | 212 | 1251 |
| &nbsp;&nbsp; Financials | 4711 | 0 | 11027 | 15738 |
| &nbsp;&nbsp; Industrials | 18 | 0 | 31978 | 31996 |
|  Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 0 | 0 | 328 | 328 |
|  Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 0 | 0 | 365 | 365 |
| &nbsp;&nbsp; Information Technology | 0 | 0 | 23913 | 23913 |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Banking & Finance | 0 | 32949 | 0 | 32949 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 4575 | 4575 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Level 1** | **Level 2** | **Level 3** | **Fair<br>Value<br>at 12/31/2022** |
|  Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts |
| &nbsp;&nbsp; Real Estate | $10253 | $0 | $0 | $10253 |
|  Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments |
| &nbsp;&nbsp; Repurchase Agreements | 0 | 112093 | 0 | 112093 |
| &nbsp;&nbsp; Argentina Treasury Bills | 0 | 845 | 0 | 845 |
| &nbsp;&nbsp; U.S. Treasury Bills | 0 | 12982 | 0 | 12982 |
|  Total Investments | $&nbsp;&nbsp;&nbsp;&nbsp;19304 | $&nbsp;&nbsp;&nbsp;&nbsp;1807932 | $&nbsp;&nbsp;&nbsp;&nbsp;201814 | $&nbsp;&nbsp;&nbsp;&nbsp;2029050 |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | 0 | 2110 | 0 | 2110 |
|  Over the counter | 0 | 2484 | 0 | 2484 |
|  | $0 | $4594 | $0 | $4594 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | 0 | (1559) | 0 | (1559) |
|  Over the counter | 0 | (9460) | 0 | (9460) |
|  | $0 | $(11019) | $0 | $(11019) |
|  Total Financial Derivative Instruments | $0 | $(6425) | $0 | $(6425) |
|  Totals | $19304 | $1801507 | $201814 | $2022625 |

---

The following is a reconciliation of the fair valuations using significant unobservable inputs (Level 3) for the Fund during the period ended December 31, 2022:

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Category and<br>Subcategory | Beginning<br>Balance<br>at 06/30/2022 | Net<br>Purchases | Net<br>Sales/<br>Settlements | Accrued<br>Discounts/<br>(Premiums) | Realized<br>Gain/(Loss) | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<sup>(1)</sup> | Transfers into<br>Level 3 | Transfers out<br>of Level 3 | Ending<br>Balance<br>at 12/31/2022 | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<br>on Investments<br>Held at<br>12/31/2022<sup>(1)</sup> |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |  |  |  |  |  |  |  |  |
|  Loan Participations and Assignments | $130842 | $60744 | $(12912) | $1956 | $(136) | $(7170) | $32605 | $(97157) | $108772 | $144 |
|  Corporate Bonds & Notes |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp; Industrials | 78440 | 1299 | 0 | 138 | 0 | (4264) | 0 | (75613) | 0 | 0 |
|  U.S. Government Agencies | 8421 | 0 | (104) | 19 | 34 | 22 | 0 | 0 | 8392 | 16 |
|  Asset-Backed Securities | 15427 | 0 | (947) | 26 | (2613) | (819) | 0 | 0 | 11074 | (3419) |
|  Common Stocks |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp; Communication Services | 1516 | 0 | 0 | 0 | 0 | (338) | 0 | 0 | 1178 | (338) |
| &nbsp;&nbsp; Energy | 90 | 0 | 0 | 0 | 0 | 122 | 0 | 0 | 212 | 122 |
| &nbsp;&nbsp; Financials | 12865 | 0 | 0 | 0 | 0 | (1838) | 0 | 0 | 11027 | (1838) |
| &nbsp;&nbsp; Industrials | 30965 | 319 | 0 | 0 | 0 | 712 | 0 | (18) | 31978 | 726 |
| &nbsp;&nbsp; Materials | 95 | 0 | (104) | 0 | 104 | (95) | 0 | 0 | 0 | 0 |
|  Rights |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp; Financials | 231 | 0 | 0 | 0 | 0 | 97 | 0 | 0 | 328 | 97 |
|  Warrants |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp; Financials | 244 | 0 | 0 | 0 | 0 | 121 | 0 | 0 | 365 | 121 |
| &nbsp;&nbsp; Industrials | 812 | 0 | (164) | 0 | 164 | (812) | 0 | 0 | 0 | 0 |
| &nbsp;&nbsp; Information Technology | 25189 | 0 | 0 | 0 | 0 | (1276) | 0 | 0 | 23913 | (1276) |
|  Preferred Securities Industrials | 54575 | 0 | (60537) | 0 | 33654 | (23117) | 0 | 0 | 4575 | (579) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;359712 | $&nbsp;&nbsp;&nbsp;&nbsp;62362 | $&nbsp;&nbsp;&nbsp;&nbsp;(74768) | $&nbsp;&nbsp;&nbsp;&nbsp;2139 | $&nbsp;&nbsp;&nbsp;&nbsp;31207 | $&nbsp;&nbsp;&nbsp;&nbsp;(38655) | $&nbsp;&nbsp;&nbsp;&nbsp;32605 | $&nbsp;&nbsp;&nbsp;&nbsp;(172788) | $&nbsp;&nbsp;&nbsp;&nbsp;201814 | $&nbsp;&nbsp;&nbsp;&nbsp;(6224) |

---

---

| | | |
|:---|:---|:---|
| 38.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

The following is a summary of significant unobservable inputs used in the fair valuations of assets and liabilities categorized within Level 3 of the fair value hierarchy:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Category and Subcategory | Ending<br>Balance<br>at 12/31/2022 | Valuation<br>Technique | Unobservable Inputs | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) |
| Category and Subcategory | Ending<br>Balance<br>at 12/31/2022 | Valuation<br>Technique | Unobservable Inputs | Input Value(s) | Input Value(s) | Weighted<br>Average |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $26855 | Discounted Cash Flow | Discount Rate |  | 6.180 |  |
|  | 14572 | Discounted Cash Flow | Discount Spread |  | 9.080 |  |
|  | 14224 | Proxy Pricing | Base Price |  | 95.286 |  |
|  | 53121 | Third Party Vendor | Broker Quote |  | 35.000-87.500 | &nbsp;&nbsp;&nbsp;&nbsp;72.272 |
|  U.S. Government Agencies | 8392 | Discounted Cash Flow | Discount Rate |  | 12.000 |  |
|  Asset-Backed Securities | 11074 | Discounted Cash Flow | Discount Rate |  | 10.000-20.000 | 16.751 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp;&nbsp;&nbsp; Communication Services | 1178 | Reference Instrument | Stock Price W/Liquidity Discount |  | 10.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Energy | 212 | Market Comparable Valuation | EBITDA Multiple |  | 4.600 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 11027 | Indicative Market Quotation | Price | $— | 24.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 26847 | Market Comparable Valuation /<br>Discounted Cash Flow | Revenue \| EBITDA Multiple /<br>Discount Rate |  | 0.620\|6.160/10.000 |  |
|  | 4793 | Discounted Cash Flow | Discount Rate |  | 11.590 |  |
|  | 338 | Indicative Market Quotation | Price | $— | 7.500 |  |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 328 | Other Valuation Techniques<sup>(</sup><sup>2)</sup> |  |  |  |  |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 5 | Indicative Market Quotation | Price | $— | 2.000-3.500 | 3.271 |
|  | 360 | Other Valuation Techniques<sup>(</sup><sup>2)</sup> |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Information Technology | 23913 | Market Comparable Valuation | EBITDA Multiple |  | 4.500 |  |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 4575 | Market Comparable Valuation /<br>Discounted Cash Flow | TBV Multiple/Discount Rate |  | 0.370/24.820 |  |
|  Total | $&nbsp;&nbsp;&nbsp;&nbsp;201814 |  |  |  |  |  |

---

<sup>(1)</sup> Any difference between Net Change in Unrealized Appreciation/(Depreciation) and Net Change in Unrealized Appreciation/(Depreciation) on Investments Held at December 31, 2022 may be due to an investment no longer held or categorized as Level 3 at period end. 

<sup>(2)</sup> Includes valuation techniques not defined in the Notes to Financial Statements as securities valued using such techniques are not considered significant to the Fund. 

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **39** |

---

------

---

| | |
|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Strategy Fund |

---

#### (Amounts in thousands\*, except number of shares, contracts, units and ounces, if any)

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| INVESTMENTS IN SECURITIES 132.4% | INVESTMENTS IN SECURITIES 132.4% | INVESTMENTS IN SECURITIES 132.4% |
| LOAN PARTICIPATIONS AND ASSIGNMENTS 34.4% | LOAN PARTICIPATIONS AND ASSIGNMENTS 34.4% | LOAN PARTICIPATIONS AND ASSIGNMENTS 34.4% |
|  American Airlines, Inc. | American Airlines, Inc. | American Airlines, Inc. |
|  8.993% (LIBOR03M + 4.750%) due 04/20/2028 ~ | 2300 | 2294 |
|  AmSurg LLC | AmSurg LLC | AmSurg LLC |
|  TBD% due 04/29/2027 µ | 1262 | 1235 |
|  AP Core Holdings LLC | AP Core Holdings LLC | AP Core Holdings LLC |
|  9.884% (LIBOR01M + 5.500%) due 09/01/2027 ~ | 14264 | &nbsp;&nbsp;&nbsp;&nbsp;12924 |
|  Arches Buyer, Inc. | Arches Buyer, Inc. | Arches Buyer, Inc. |
|  7.634% (LIBOR01M + 3.250%) due 12/06/2027 ~ | 831 | 772 |
|  Carnival Corp. | Carnival Corp. | Carnival Corp. |
|  5.648% (EUR001M + 3.750%) due 06/30/2025 ~ | 2164 | 2233 |
|  Cengage Learning, Inc. | Cengage Learning, Inc. | Cengage Learning, Inc. |
|  7.814% (LIBOR06M + 4.750%) due 07/14/2026 ~ | 1086 | 979 |
|  Diamond Sports Group LLC | Diamond Sports Group LLC | Diamond Sports Group LLC |
|  12.317% due 05/25/2026 | 11926 | 11332 |
|  DirecTV Financing LLC | DirecTV Financing LLC | DirecTV Financing LLC |
|  9.384% (LIBOR01M + 5.000%) due 08/02/2027 ~ | 8475 | 8269 |
|  Envision Healthcare Corp. | Envision Healthcare Corp. | Envision Healthcare Corp. |
|  12.119% due 04/29/2027 | 6938 | 6791 |
|  15.744% due 04/28/2028 | 17044 | 13947 |
|  Forbes Energy Services LLC |  |  |
|  7.000% due 06/30/2023 « | 164 | 0 |
|  11.000% due 06/30/2023 « | 2 | 0 |
|  Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. |
|  12.138% due 10/15/2027 | 5740 | 5668 |
|  12.565% due 10/18/2027 | 3452 | 2518 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  7.445% due 02/01/2029 | 3301 | 3193 |
|  Lealand Finance Co. BV | Lealand Finance Co. BV | Lealand Finance Co. BV |
|  7.384% (LIBOR01M + 3.000%) due 06/28/2024 ~ | 75 | 49 |
|  Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) |
|  8.384% (LIBOR01M + 1.000%) due 06/30/2025 ~(b) | 364 | 195 |
|  MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC |
|  8.985% (LIBOR03M + 4.250%) due 09/01/2028 ~ | 5841 | 5016 |
|  Oi SA | Oi SA | Oi SA |
|  TBD% due 02/26/2035 « | 7418 | 2596 |
|  Poseidon Bidco SASU | Poseidon Bidco SASU | Poseidon Bidco SASU |
|  7.452% (EUR003M + 5.250%) due 07/14/2028 «~ | 5900 | 5442 |
|  Promotora de Informaciones SA | Promotora de Informaciones SA | Promotora de Informaciones SA |
|  6.708% (EUR003M + 5.250%) due 12/31/2026 «~ | 8300 | 7641 |
|  8.000% (EUR003M + 8.000%) due 06/30/2027 «~ | 2743 | 2569 |
|  PUG LLC | PUG LLC | PUG LLC |
|  7.884% (LIBOR01M + 3.500%) due 02/12/2027 ~ | 9259 | 7708 |
|  8.634% (LIBOR01M + 4.250%) due 02/12/2027 «~ | 369 | 307 |
|  Redstone Holdco 2 LP | Redstone Holdco 2 LP | Redstone Holdco 2 LP |
|  9.108% (LIBOR03M + 4.750%) due 04/27/2028 ~ | 7767 | 5415 |
|  Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. |
|  9.485% (LIBOR03M + 4.750%) due 06/01/2028 «~ | 988 | 469 |
|  Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) |
|  10.750% (EUR006M) due 06/30/2023 ~(b) | 12536 | 8633 |
|  Syniverse Holdings, Inc. | Syniverse Holdings, Inc. | Syniverse Holdings, Inc. |
|  11.580% due 05/13/2027 | 15594 | 13683 |
|  Team Health Holdings, Inc. | Team Health Holdings, Inc. | Team Health Holdings, Inc. |
|  7.134% (LIBOR01M + 2.750%) due 02/06/2024 ~ | 12019 | 10337 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Telemar Norte Leste SA | Telemar Norte Leste SA | Telemar Norte Leste SA |
|  TBD% due 02/26/2035 « | 6117 | 2141 |
|  TransDigm, Inc. | TransDigm, Inc. | TransDigm, Inc. |
|  6.980% (LIBOR03M + 2.250%) due 05/30/2025 ~ | 14 | 14 |
|  7.830% due 02/22/2027 | 2019 | 2015 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  9.438% (LIBOR01M + 5.000%) due 06/26/2026 ~ | 19052 | &nbsp;&nbsp;&nbsp;&nbsp;10753 |
|  9.938% (LIBOR01M + 5.500%) due 06/26/2026 ~ | 910 | 514 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  9.730% (LIBOR03M + 5.000%) due 09/01/2025 ~ | 13067 | 9284 |
|  Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) |
|  15.000% due 03/15/2029 (b) | 4754 | 3696 |
|  Windstream Services LLC | Windstream Services LLC | Windstream Services LLC |
|  8.423% due 02/28/2027 « | 5480 | 5228 |
|  10.673% (LIBOR01M + 6.250%) due 09/21/2027 ~ | 2423 | 2204 |
|  Zayo Group Holdings, Inc. | Zayo Group Holdings, Inc. | Zayo Group Holdings, Inc. |
|  7.384% (LIBOR01M + 3.000%) due 03/09/2027 ~ | 2000 | 1629 |
|  Total Loan Participations and Assignments (Cost $208,228) | Total Loan Participations and Assignments (Cost $208,228) | &nbsp;&nbsp;&nbsp;&nbsp;179693 |
| CORPORATE BONDS & NOTES 48.1% | CORPORATE BONDS & NOTES 48.1% | CORPORATE BONDS & NOTES 48.1% |
| BANKING & FINANCE 10.8% | BANKING & FINANCE 10.8% | BANKING & FINANCE 10.8% |
|  Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. |
|  4.625% due 06/15/2029 (m) | 1800 | 1443 |
|  Armor Holdco, Inc. | Armor Holdco, Inc. | Armor Holdco, Inc. |
|  8.500% due 11/15/2029 (m) | 3400 | 2558 |
|  Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA |
|  1.875% due 01/09/2026 | 1000 | 921 |
|  2.625% due 04/28/2025 | 7669 | 7450 |
|  3.625% due 09/24/2024 | 1714 | 1746 |
|  5.375% due 01/18/2028 •  | 600 | 519 |
|  8.000% due 01/22/2030 •  | 2296 | 2157 |
|  8.500% due 09/10/2030 •  | 2300 | 2172 |
|  10.500% due 07/23/2029 | 2167 | 2154 |
|  Banco de Credito del Peru SA | Banco de Credito del Peru SA | Banco de Credito del Peru SA |
|  4.650% due 09/17/2024 | 700 | 172 |
|  Barclays PLC | Barclays PLC | Barclays PLC |
|  7.437% due 11/02/2033 •  | 1708 | 1795 |
|  BNP Paribas SA | BNP Paribas SA | BNP Paribas SA |
|  3.132% due 01/20/2033 •  | 1506 | 1193 |
|  BOI Finance BV | BOI Finance BV | BOI Finance BV |
|  7.500% due 02/16/2027 | 2600 | 2248 |
|  Corsair International Ltd. | Corsair International Ltd. | Corsair International Ltd. |
|  5.473% due 01/28/2027 •  | 1000 | 1062 |
|  Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. |
|  13.850% (T-BILL 1MO + 9.250%) due 04/03/2028 ~ | 700 | 567 |
|  Credit Agricole SA | Credit Agricole SA | Credit Agricole SA |
|  7.875% due 01/23/2024 •(i)(j) | 200 | 199 |
|  Credit Suisse Group AG | Credit Suisse Group AG | Credit Suisse Group AG |
|  6.373% due 07/15/2026 •(m) | 400 | 376 |
|  6.442% due 08/11/2028 •(m) | 600 | 547 |
|  GSPA Monetization Trust | GSPA Monetization Trust | GSPA Monetization Trust |
|  6.422% due 10/09/2029 | 2655 | 2551 |
|  Hestia Re Ltd. | Hestia Re Ltd. | Hestia Re Ltd. |
|  13.840% (T-BILL 1MO + 9.500%) due 04/22/2025 ~ | 704 | 581 |
|  Lloyds Banking Group PLC | Lloyds Banking Group PLC | Lloyds Banking Group PLC |
|  4.947% due 06/27/2025 •(i)(j) | 1542 | 1585 |
|  Park Aerospace Holdings Ltd. | Park Aerospace Holdings Ltd. | Park Aerospace Holdings Ltd. |
|  5.500% due 02/15/2024 | 6 | 6 |
|  Sanders Re Ltd. | Sanders Re Ltd. | Sanders Re Ltd. |
|  16.090% (T-BILL 3MO + 11.750%) due 04/09/2029 ~ | 1207 | 1146 |
|  Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC |
|  5.659% due 06/30/2027 | 415 | 495 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Uniti Group LP | Uniti Group LP | Uniti Group LP |
|  4.750% due 04/15/2028 (m) | 2200 | 1763 |
|  6.000% due 01/15/2030 (m) | 7721 | 4896 |
|  6.500% due 02/15/2029 (m) | 2600 | 1727 |
|  VICI Properties LP | VICI Properties LP | VICI Properties LP |
|  3.875% due 02/15/2029 (m) | 5800 | 5092 |
|  5.750% due 02/01/2027 (m) | 700 | 683 |
|  Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC |
|  8.500% due 05/09/2026 | 7150 | 5675 |
|  Yosemite Re Ltd. | Yosemite Re Ltd. | Yosemite Re Ltd. |
|  14.087% (T-BILL 3MO + 9.750%) due 06/06/2025 ~ | 660 | 636 |
|  |  | &nbsp;&nbsp;&nbsp;&nbsp;56115 |
| INDUSTRIALS 31.5% | INDUSTRIALS 31.5% | INDUSTRIALS 31.5% |
|  AA Bond Co. Ltd. | AA Bond Co. Ltd. | AA Bond Co. Ltd. |
|  5.500% due 07/31/2050 | 2332 | 2446 |
|  Altice Financing SA | Altice Financing SA | Altice Financing SA |
|  5.750% due 08/15/2029 (m) | 1925 | 1518 |
|  Altice France Holding SA | Altice France Holding SA | Altice France Holding SA |
|  10.500% due 05/15/2027 (m) | 4500 | 3441 |
|  Boeing Co. | Boeing Co. | Boeing Co. |
|  6.125% due 02/15/2033 (m) | 1447 | 1475 |
|  Carvana Co. | Carvana Co. | Carvana Co. |
|  10.250% due 05/01/2030 | 2200 | 1038 |
|  CDW LLC | CDW LLC | CDW LLC |
|  3.569% due 12/01/2031 (m) | 800 | 661 |
|  CGG SA | CGG SA | CGG SA |
|  7.750% due 04/01/2027 | 2550 | 2240 |
|  8.750% due 04/01/2027 (m) | 6964 | 5578 |
|  Champion Path Holdings Ltd. | Champion Path Holdings Ltd. | Champion Path Holdings Ltd. |
|  4.500% due 01/27/2026 | 1000 | 873 |
|  4.850% due 01/27/2028 | 1100 | 928 |
|  Community Health Systems, Inc. | Community Health Systems, Inc. | Community Health Systems, Inc. |
|  8.000% due 03/15/2026 (m) | 9682 | 8835 |
|  CVS Pass-Through Trust | CVS Pass-Through Trust | CVS Pass-Through Trust |
|  7.507% due 01/10/2032 (m) | 586 | 610 |
|  DISH DBS Corp. | DISH DBS Corp. | DISH DBS Corp. |
|  5.250% due 12/01/2026 (m) | 3700 | 3124 |
|  5.750% due 12/01/2028 (m) | 5720 | 4576 |
|  DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) |
|  7.000% due 12/31/2027 (b) | 3597 | 991 |
|  Dufry One BV | Dufry One BV | Dufry One BV |
|  3.625% due 04/15/2026 | 2741 | 2610 |
|  Exela Intermediate LLC | Exela Intermediate LLC | Exela Intermediate LLC |
|  11.500% due 07/15/2026 | 85 | 15 |
|  Ford Motor Co. | Ford Motor Co. | Ford Motor Co. |
|  7.700% due 05/15/2097 (m) | 6540 | 6201 |
|  HCA, Inc. | HCA, Inc. | HCA, Inc. |
|  7.500% due 11/15/2095 (m) | 1200 | 1292 |
|  HF Sinclair Corp. | HF Sinclair Corp. | HF Sinclair Corp. |
|  4.500% due 10/01/2030 (m) | 3721 | 3275 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  6.500% due 03/15/2030 (m) | 12686 | 11373 |
|  Inter Media & Communication SpA | Inter Media & Communication SpA | Inter Media & Communication SpA |
|  6.750% due 02/09/2027 | 2600 | 2645 |
|  Market Bidco Finco PLC | Market Bidco Finco PLC | Market Bidco Finco PLC |
|  4.750% due 11/04/2027 | 700 | 605 |
|  Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. |
|  4.875% due 06/06/2025 (m) | 1732 | 1594 |
|  5.750% due 07/21/2028 (m) | 1500 | 1257 |
|  New Albertsons LP | New Albertsons LP | New Albertsons LP |
|  6.570% due 02/23/2028 | 5600 | 5759 |
|  Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. |
|  4.810% due 09/17/2030 (m) | 11300 | 9615 |
|  Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) |
|  11.000% due 02/15/2028 (b) | 47 | 52 |
|  Norfolk Southern Corp. | Norfolk Southern Corp. | Norfolk Southern Corp. |
|  4.100% due 05/15/2121 (m) | 600 | 418 |
|  Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. |
|  0.000% due 01/30/2023 (f)(i) | 753 | 2 |

---

---

| | | |
|:---|:---|:---|
| **40** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Olympus Water U.S. Holding Corp. | Olympus Water U.S. Holding Corp. | Olympus Water U.S. Holding Corp. |
|  5.375% due 10/01/2029 | 2400 | 1874 |
|  Oracle Corp. | Oracle Corp. | Oracle Corp. |
|  4.100% due 03/25/2061 (k)(m) | 200 | 140 |
|  Petroleos Mexicanos | Petroleos Mexicanos | Petroleos Mexicanos |
|  2.750% due 04/21/2027 | 2422 | 2035 |
|  Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. |
|  7.250% due 11/01/2025 (m) | 4000 | 3386 |
|  QVC, Inc. | QVC, Inc. | QVC, Inc. |
|  5.950% due 03/15/2043 (m) | 1774 | 880 |
|  Russian Railways Via RZD Capital PLC | Russian Railways Via RZD Capital PLC | Russian Railways Via RZD Capital PLC |
|  7.487% due 03/25/2031 ^(c) | 1000 | 653 |
|  Sands China Ltd. | Sands China Ltd. | Sands China Ltd. |
|  2.800% due 03/08/2027 (m) | 600 | 515 |
|  3.350% due 03/08/2029 (m) | 500 | 409 |
|  5.900% due 08/08/2028 (m) | 5128 | 4808 |
|  Seagate HDD Cayman | Seagate HDD Cayman | Seagate HDD Cayman |
|  4.091% due 06/01/2029 (m) | 2000 | 1661 |
|  Times Square Hotel Trust | Times Square Hotel Trust | Times Square Hotel Trust |
|  8.528% due 08/01/2026 | 836 | 826 |
|  Topaz Solar Farms LLC | Topaz Solar Farms LLC | Topaz Solar Farms LLC |
|  4.875% due 09/30/2039 (m) | 1998 | 1778 |
|  5.750% due 09/30/2039 (m) | 8259 | 7851 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  10.625% due 07/15/2027 | 1655 | 364 |
|  United Group BV | United Group BV | United Group BV |
|  4.875% due 07/01/2024 | 100 | 100 |
|  Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) |
|  8.250% due 04/30/2028 (b)(m) | 1106 | 1114 |
|  8.250% due 04/30/2028 (b) | 909 | 915 |
|  Vale SA | Vale SA | Vale SA |
|  3.202% due 12/29/2049 ~(i) | 90000 | 6360 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  7.500% due 09/01/2025 (m) | 3610 | 2494 |
|  Viking Cruises Ltd. | Viking Cruises Ltd. | Viking Cruises Ltd. |
|  13.000% due 05/15/2025 (m) | 3697 | 3906 |
|  VOC Escrow Ltd. | VOC Escrow Ltd. | VOC Escrow Ltd. |
|  5.000% due 02/15/2028 (m) | 4200 | 3619 |
|  Wesco Aircraft Holdings, Inc. | Wesco Aircraft Holdings, Inc. | Wesco Aircraft Holdings, Inc. |
|  9.000% due 11/15/2026 | 2966 | 2009 |
|  Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) |
|  10.500% due 11/15/2026 (b)(m) | 19131 | 17648 |
|  Windstream Escrow LLC | Windstream Escrow LLC | Windstream Escrow LLC |
|  7.750% due 08/15/2028 (m) | 8500 | 6946 |
|  Wynn Macau Ltd. | Wynn Macau Ltd. | Wynn Macau Ltd. |
|  5.125% due 12/15/2029 | 200 | 162 |
|  5.500% due 01/15/2026 (m) | 416 | 382 |
|  5.500% due 10/01/2027 | 200 | 175 |
|  5.625% due 08/26/2028 (m) | 7284 | 6237 |
|  |  | &nbsp;&nbsp;&nbsp;&nbsp;164294 |
| UTILITIES 5.8% | UTILITIES 5.8% | UTILITIES 5.8% |
|  Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. |
|  6.750% due 08/06/2023 | 1600 | 1545 |
|  7.125% due 02/11/2025 | 4070 | 3716 |
|  Mountain States Telephone & Telegraph Co. | Mountain States Telephone & Telegraph Co. | Mountain States Telephone & Telegraph Co. |
|  7.375% due 05/01/2030 | 3600 | 3503 |
|  NGD Holdings BV | NGD Holdings BV | NGD Holdings BV |
|  6.750% due 12/31/2026 | 377 | 176 |
|  Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) |
|  7.350% due 12/01/2026 ^(b) | 202 | 112 |
|  Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) |
|  7.720% due 12/01/2026 ^(b) | 5677 | 1519 |
|  Oi SA | Oi SA | Oi SA |
|  10.000% due 07/27/2025 | 24519 | 4237 |
|  Pacific Gas & Electric Co. | Pacific Gas & Electric Co. | Pacific Gas & Electric Co. |
|  3.750% due 08/15/2042 | 22 | 15 |
|  4.000% due 12/01/2046 | 7 | 5 |
|  4.200% due 03/01/2029 (m) | 1500 | 1342 |

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---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  4.250% due 03/15/2046 (m) | 1700 | 1189 |
|  4.300% due 03/15/2045 (m) | 27 | 19 |
|  4.450% due 04/15/2042 (m) | 213 | 159 |
|  4.500% due 12/15/2041 (m) | 275 | 195 |
|  4.600% due 06/15/2043 (m) | 118 | 90 |
|  4.750% due 02/15/2044 (m) | 3754 | 2886 |
|  4.950% due 07/01/2050 (m) | 3358 | 2616 |
|  Peru LNG SRL | Peru LNG SRL | Peru LNG SRL |
|  5.375% due 03/22/2030 | 6860 | 5739 |
|  Rio Oil Finance Trust | Rio Oil Finance Trust | Rio Oil Finance Trust |
|  9.250% due 07/06/2024 (m) | 142 | 144 |
|  9.250% due 07/06/2024 | 1030 | 1045 |
|  |  | 30252 |
|  Total Corporate Bonds & Notes (Cost $301,433) | Total Corporate Bonds & Notes (Cost $301,433) | &nbsp;&nbsp;&nbsp;&nbsp;250661 |
| CONVERTIBLE BONDS & NOTES 0.4% | CONVERTIBLE BONDS & NOTES 0.4% | CONVERTIBLE BONDS & NOTES 0.4% |
| INDUSTRIALS 0.4% | INDUSTRIALS 0.4% | INDUSTRIALS 0.4% |
|  DISH Network Corp. | DISH Network Corp. | DISH Network Corp. |
|  3.375% due 08/15/2026 | 3400 | 2139 |
|  Total Convertible Bonds & Notes<br>(Cost $3,400) | Total Convertible Bonds & Notes<br>(Cost $3,400) | 2139 |
| MUNICIPAL BONDS & NOTES 1.8% | MUNICIPAL BONDS & NOTES 1.8% | MUNICIPAL BONDS & NOTES 1.8% |
| CALIFORNIA 0.1% | CALIFORNIA 0.1% | CALIFORNIA 0.1% |
|  Golden State, California Tobacco Securitization Corp. Revenue Bonds, Series 2021 | Golden State, California Tobacco Securitization Corp. Revenue Bonds, Series 2021 | Golden State, California Tobacco Securitization Corp. Revenue Bonds, Series 2021 |
|  3.000% due 06/01/2046 | 530 | 491 |
| ILLINOIS 1.0% | ILLINOIS 1.0% | ILLINOIS 1.0% |
|  Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 |
|  7.517% due 01/01/2040 | 4600 | 4855 |
|  Chicago, Illinois General Obligation Bonds, Series 2017 | Chicago, Illinois General Obligation Bonds, Series 2017 | Chicago, Illinois General Obligation Bonds, Series 2017 |
|  7.045% due 01/01/2029 | 85 | 86 |
|  Illinois State General Obligation Bonds, (BABs), Series 2010 | Illinois State General Obligation Bonds, (BABs), Series 2010 | Illinois State General Obligation Bonds, (BABs), Series 2010 |
|  7.350% due 07/01/2035 | 19 | 20 |
|  |  | 4961 |
| PUERTO RICO 0.1% | PUERTO RICO 0.1% | PUERTO RICO 0.1% |
|  Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 |
|  0.000% due 11/01/2043 (f) | 1227 | 539 |
| WEST VIRGINIA 0.6% | WEST VIRGINIA 0.6% | WEST VIRGINIA 0.6% |
|  Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 |
|  0.000% due 06/01/2047 (f) | 44400 | 3306 |
|  Total Municipal Bonds & Notes (Cost $10,430) | Total Municipal Bonds & Notes (Cost $10,430) | 9297 |
| U.S. GOVERNMENT AGENCIES 2.3% | U.S. GOVERNMENT AGENCIES 2.3% | U.S. GOVERNMENT AGENCIES 2.3% |
|  Fannie Mae | Fannie Mae | Fannie Mae |
|  3.000% due 02/25/2043 - 06/25/2050 (a)(m) | 15389 | 2454 |
|  10.139% due 07/25/2029 •  | 1150 | 1255 |
|  Freddie Mac | Freddie Mac | Freddie Mac |
|  3.500% due 05/25/2050 (a)(m) | 1802 | 377 |
|  5.992% due 11/25/2055 «~ | 7697 | 4731 |
|  11.939% due 12/25/2027 ~ | 3093 | 3106 |
|  Total U.S. Government Agencies (Cost $16,655) | Total U.S. Government Agencies (Cost $16,655) | &nbsp;&nbsp;&nbsp;&nbsp;11923 |
| NON-AGENCY MORTGAGE-BACKED SECURITIES 9.0% | NON-AGENCY MORTGAGE-BACKED SECURITIES 9.0% | NON-AGENCY MORTGAGE-BACKED SECURITIES 9.0% |
|  Banc of America Funding Trust | Banc of America Funding Trust | Banc of America Funding Trust |
|  6.000% due 07/25/2037 ^ | 162 | 127 |
|  Banc of America Mortgage Trust | Banc of America Mortgage Trust | Banc of America Mortgage Trust |
|  6.000% due 03/25/2037 ^ | 122 | 98 |

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---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  BCAP LLC Trust | BCAP LLC Trust | BCAP LLC Trust |
|  3.071% due 08/28/2037 ~ | 1822 | 1788 |
|  3.082% due 03/27/2036 ~ | 1399 | 1009 |
|  4.611% due 03/26/2037 þ | 646 | 876 |
|  Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust |
|  3.336% due 11/25/2035 ^~ | 2739 | 2415 |
|  3.580% due 09/25/2047 ^~ | 3803 | 1999 |
|  3.586% due 11/25/2036 ^~ | 2550 | 1366 |
|  3.697% due 08/25/2036 ^~ | 578 | 308 |
|  3.908% due 09/25/2035 ^~ | 243 | 144 |
|  4.889% due 01/25/2036 ^•  | 495 | 639 |
|  Bear Stearns Mortgage Funding Trust | Bear Stearns Mortgage Funding Trust | Bear Stearns Mortgage Funding Trust |
|  7.500% due 08/25/2036 þ | 96 | 96 |
|  CD Mortgage Trust | CD Mortgage Trust | CD Mortgage Trust |
|  5.688% due 10/15/2048 | 337 | 297 |
|  Chase Mortgage Finance Trust | Chase Mortgage Finance Trust | Chase Mortgage Finance Trust |
|  3.946% due 12/25/2035 ^~ | 4 | 3 |
|  6.000% due 07/25/2037 ^ | 515 | 252 |
|  Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust |
|  3.993% due 04/25/2037 ^~ | 129 | 108 |
|  Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust |
|  6.480% due 12/10/2049 ~ | 510 | 82 |
|  Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust |
|  6.000% due 08/25/2037 ^~ | 724 | 433 |
|  Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust |
|  5.500% due 03/25/2035 | 196 | 89 |
|  5.750% due 01/25/2035 | 133 | 126 |
|  5.750% due 02/25/2035 | 198 | 139 |
|  5.750% due 03/25/2037 ^ | 405 | 233 |
|  6.000% due 02/25/2035 | 641 | 489 |
|  6.000% due 04/25/2036 | 706 | 349 |
|  6.000% due 02/25/2037 ^ | 3948 | 1584 |
|  6.000% due 04/25/2037 ^ | 713 | 360 |
|  6.250% due 12/25/2036 ^•  | 1020 | 471 |
|  6.500% due 08/25/2036 ^ | 369 | 133 |
|  Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust |
|  3.501% due 09/20/2036 ^~ | 134 | 116 |
|  6.000% due 07/25/2037 | 1093 | 526 |
|  Credit Suisse Mortgage Capital Certificates | Credit Suisse Mortgage Capital Certificates | Credit Suisse Mortgage Capital Certificates |
|  3.902% due 10/26/2036 ~ | 5862 | 4880 |
|  GS Mortgage Securities Corp. | GS Mortgage Securities Corp. | GS Mortgage Securities Corp. |
|  7.736% due 08/15/2039 ~ | 950 | 959 |
|  GS Mortgage Securities Corp. Trust | GS Mortgage Securities Corp. Trust | GS Mortgage Securities Corp. Trust |
|  4.591% due 10/10/2032 ~ | 4600 | 4336 |
|  GSR Mortgage Loan Trust | GSR Mortgage Loan Trust | GSR Mortgage Loan Trust |
|  3.814% due 08/25/2034 ~ | 221 | 193 |
|  6.000% due 02/25/2036 ^ | 1304 | 597 |
|  HarborView Mortgage Loan Trust | HarborView Mortgage Loan Trust | HarborView Mortgage Loan Trust |
|  3.764% due 06/19/2036 ^~ | 3739 | 1748 |
|  4.819% due 01/19/2036 ^•  | 440 | 402 |
|  IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust |
|  6.500% due 07/25/2037 ^ | 3320 | 1078 |
|  Jackson Park Trust | Jackson Park Trust | Jackson Park Trust |
|  3.242% due 10/14/2039 ~ | 1772 | 1281 |
|  Jefferies Resecuritization Trust | Jefferies Resecuritization Trust | Jefferies Resecuritization Trust |
|  6.000% due 05/26/2036 | 6794 | 3087 |
|  JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust |
|  3.699% due 03/25/2037 ^~ | 715 | 633 |
|  6.000% due 12/25/2035 ^ | 820 | 596 |
|  JP Morgan Mortgage Trust | JP Morgan Mortgage Trust | JP Morgan Mortgage Trust |
|  3.478% due 02/25/2036 ^~ | 1007 | 748 |
|  3.480% due 04/25/2037 ~ | 3 | 2 |
|  3.850% due 01/25/2037 ^~ | 229 | 187 |
|  Lehman Mortgage Trust | Lehman Mortgage Trust | Lehman Mortgage Trust |
|  6.000% due 07/25/2037 ^ | 44 | 40 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  4.829% due 06/25/2047 •  | 941 | 840 |
|  MASTR Alternative Loan Trust | MASTR Alternative Loan Trust | MASTR Alternative Loan Trust |
|  6.750% due 07/25/2036 | 1447 | 537 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  2.736% due 03/25/2036 ^~ | 420 | 231 |
|  Residential Accredit Loans, Inc. Trust | Residential Accredit Loans, Inc. Trust | Residential Accredit Loans, Inc. Trust |
|  4.623% due 12/26/2034 ^~ | 814 | 317 |
|  4.849% due 05/25/2037 ^•  | 82 | 68 |
|  6.000% due 08/25/2036 ^ | 151 | 126 |

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---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **41** |

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------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Strategy Fund | (Cont.) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Residential Asset Securitization Trust | Residential Asset Securitization Trust | Residential Asset Securitization Trust |
|  6.000% due 11/25/2036 ^ | 2382 | 908 |
|  6.250% due 09/25/2037 ^ | 2396 | 966 |
|  Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust |
|  4.412% due 02/25/2037 ~ | 778 | 541 |
|  6.500% due 03/25/2032 | 83 | 79 |
|  Sequoia Mortgage Trust | Sequoia Mortgage Trust | Sequoia Mortgage Trust |
|  3.051% due 07/20/2037 ^~ | 265 | 218 |
|  3.227% due 02/20/2047 ~ | 141 | 117 |
|  Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust |
|  3.688% due 07/25/2035 ^~ | 315 | 268 |
|  3.694% due 01/25/2036 ^~ | 1250 | 787 |
|  4.022% due 11/25/2036 ^~ | 1116 | 936 |
|  SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust |
|  2.278% due 04/25/2037 ^~ | 164 | 99 |
|  3.232% due 02/25/2037 ^~ | 94 | 82 |
|  WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust |
|  3.211% due 02/25/2037 ^~ | 266 | 239 |
|  3.367% due 07/25/2037 ^~ | 221 | 185 |
|  3.672% due 10/25/2036 ^~ | 1017 | 876 |
|  3.864% due 07/25/2037 ^~ | 459 | 421 |
|  Washington Mutual Mortgage Pass-Through Certificates Trust | Washington Mutual Mortgage Pass-Through Certificates Trust | Washington Mutual Mortgage Pass-Through Certificates Trust |
|  2.888% due 05/25/2047 ^•  | 58 | 8 |
|  6.000% due 10/25/2035 ^ | 975 | 670 |
|  Total Non-Agency Mortgage-Backed Securities (Cost $59,680) | Total Non-Agency Mortgage-Backed Securities (Cost $59,680) | &nbsp;&nbsp;&nbsp;&nbsp;46941 |
| ASSET-BACKED SECURITIES 12.3% | ASSET-BACKED SECURITIES 12.3% | ASSET-BACKED SECURITIES 12.3% |
|  ACE Securities Corp. Home Equity Loan Trust | ACE Securities Corp. Home Equity Loan Trust | ACE Securities Corp. Home Equity Loan Trust |
|  4.974% due 02/25/2036 •  | 24062 | 20249 |
|  Adagio CLO DAC | Adagio CLO DAC | Adagio CLO DAC |
|  0.000% due 04/30/2031 ~ | 1800 | 503 |
|  Apidos CLO | Apidos CLO | Apidos CLO |
|  0.000% due 01/20/2031 ~ | 4500 | 1499 |
|  Argent Securities Trust | Argent Securities Trust | Argent Securities Trust |
|  4.769% due 03/25/2036 ~ | 3054 | 1632 |
|  Avoca CLO DAC | Avoca CLO DAC | Avoca CLO DAC |
|  0.000% due 04/15/2034 ~ | 1600 | 775 |
|  Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust |
|  4.529% due 10/25/2036 ^~ | 1873 | 2704 |
|  6.500% due 10/25/2036 ^ | 333 | 180 |
|  Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. |
|  3.998% due 07/05/2046 ~ | 175347 | 1295 |
|  Carlyle U.S. CLO Ltd. | Carlyle U.S. CLO Ltd. | Carlyle U.S. CLO Ltd. |
|  0.000% due 07/20/2029 ~ | 1895 | 550 |
|  CIFC Funding Ltd. | CIFC Funding Ltd. | CIFC Funding Ltd. |
|  0.000% due 04/24/2030 ~ | 2300 | 528 |
|  0.000% due 10/22/2031 ~ | 1500 | 315 |
|  Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust |
|  4.549% due 12/25/2036 ~ | 1318 | 743 |
|  First Franklin Mortgage Loan Trust | First Franklin Mortgage Loan Trust | First Franklin Mortgage Loan Trust |
|  5.334% due 09/25/2035 ~ | 3443 | 3027 |
|  5.364% due 05/25/2036 •  | 6602 | 5760 |
|  Grosvenor Place CLO BV | Grosvenor Place CLO BV | Grosvenor Place CLO BV |
|  0.000% due 04/30/2029 ~ | 500 | 94 |
|  Home Equity Mortgage Loan Asset-Backed Trust | Home Equity Mortgage Loan Asset-Backed Trust | Home Equity Mortgage Loan Asset-Backed Trust |
|  4.549% due 07/25/2037 ~ | 7893 | 4269 |
|  JP Morgan Mortgage Acquisition Trust | JP Morgan Mortgage Acquisition Trust | JP Morgan Mortgage Acquisition Trust |
|  4.442% due 10/25/2030 ^þ | 3586 | 1991 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  5.670% due 08/25/2035 ^þ | 19 | 19 |
|  LNR CDO Ltd. | LNR CDO Ltd. | LNR CDO Ltd. |
|  4.669% due 02/28/2043 ~ | 1616 | 26 |
|  Marlette Funding Trust | Marlette Funding Trust | Marlette Funding Trust |
|  0.000% due 09/17/2029 «(f) | 7 | 542 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  4.336% due 04/25/2037 ~ | 376 | 188 |
|  Morgan Stanley ABS Capital, Inc. Trust | Morgan Stanley ABS Capital, Inc. Trust | Morgan Stanley ABS Capital, Inc. Trust |
|  4.689% due 06/25/2036 •  | 260 | 227 |
|  Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust |
|  6.250% due 02/25/2037 ^~ | 412 | 195 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Park Place Securities, Inc. Asset-Backed Pass-<br>Through Certificates | Park Place Securities, Inc. Asset-Backed Pass-<br>Through Certificates | Park Place Securities, Inc. Asset-Backed Pass-<br>Through Certificates |
|  6.159% due 10/25/2034 ~ | 573 | 546 |
|  Residential Asset Mortgage Products Trust | Residential Asset Mortgage Products Trust | Residential Asset Mortgage Products Trust |
|  5.589% due 01/25/2035 ^~ | 2013 | 1823 |
|  SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust |
|  0.000% due 10/28/2029 «(f) | 3 | 1909 |
|  SLM Student Loan Trust | SLM Student Loan Trust | SLM Student Loan Trust |
|  0.000% due 01/25/2042 «(f) | 4 | 1368 |
|  SMB Private Education Loan Trust | SMB Private Education Loan Trust | SMB Private Education Loan Trust |
|  0.000% due 09/18/2046 «(f) | 1 | 422 |
|  0.000% due 10/15/2048 «(f) | 1 | 324 |
|  SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC |
|  0.000% due 05/25/2040 (f) | 4300 | 436 |
|  0.000% due 07/25/2040 «(f) | 21 | 249 |
|  0.000% due 09/25/2040 «(f) | 1718 | 235 |
|  South Coast Funding Ltd. | South Coast Funding Ltd. | South Coast Funding Ltd. |
|  5.192% due 08/10/2038 •  | 9503 | 747 |
|  Symphony CLO Ltd. | Symphony CLO Ltd. | Symphony CLO Ltd. |
|  8.611% due 07/14/2026 •  | 2000 | 1904 |
|  Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. |
|  4.218% due 07/05/2035 ~ | 2071 | 1887 |
|  4.912% due 08/05/2036 •  | 278 | 248 |
|  4.912% due 08/05/2036 ^~ | 5141 | 4588 |
|  Total Asset-Backed Securities (Cost $82,355) | Total Asset-Backed Securities (Cost $82,355) | &nbsp;&nbsp;&nbsp;&nbsp;63997 |
| SOVEREIGN ISSUES 2.1% | SOVEREIGN ISSUES 2.1% | SOVEREIGN ISSUES 2.1% |
|  Argentina Government International Bond | Argentina Government International Bond | Argentina Government International Bond |
|  0.500% due 07/09/2030 þ | 2782 | 644 |
|  1.000% due 07/09/2029 | 669 | 179 |
|  1.400% due 03/25/2023 | 56606 | 172 |
|  1.500% due 07/09/2035 þ | 3003 | 680 |
|  1.500% due 07/09/2046 þ | 115 | 30 |
|  3.500% due 07/09/2041 þ(m) | 5955 | 1708 |
|  3.875% due 01/09/2038 þ(m) | 10995 | 3501 |
|  15.500% due 10/17/2026 | 53560 | 41 |
|  Autonomous City of Buenos Aires | Autonomous City of Buenos Aires | Autonomous City of Buenos Aires |
|  72.479% (BADLARPP + 3.250%) due 03/29/2024 ~ | 90469 | 282 |
|  72.986% (BADLARPP + 3.750%) due 02/22/2028 ~ | 22091 | 63 |
|  Ghana Government International Bond | Ghana Government International Bond | Ghana Government International Bond |
|  6.375% due 02/11/2027 ^(c) | 600 | 233 |
|  7.875% due 02/11/2035 ^(c) | 600 | 217 |
|  8.750% due 03/11/2061 ^(c) | 200 | 71 |
|  Provincia de Buenos Aires | Provincia de Buenos Aires | Provincia de Buenos Aires |
|  72.913% due 04/12/2025 | 136752 | 377 |
|  Republic of Greece Government International Bond | Republic of Greece Government International Bond | Republic of Greece Government International Bond |
|  2.000% due 04/22/2027 | 314 | 315 |
|  3.900% due 01/30/2033 | 693 | 710 |
|  4.000% due 01/30/2037 | 543 | 546 |
|  4.200% due 01/30/2042 | 678 | 723 |
|  Russia Government International Bond | Russia Government International Bond | Russia Government International Bond |
|  1.125% due 11/20/2027 ^(c) | 100 | 31 |
|  Ukraine Government International Bond | Ukraine Government International Bond | Ukraine Government International Bond |
|  4.375% due 01/27/2032 ^(c) | 1054 | 210 |
|  Venezuela Government International Bond | Venezuela Government International Bond | Venezuela Government International Bond |
|  8.250% due 10/13/2024 ^(c) | 28 | 2 |
|  9.250% due 09/15/2027 ^(c) | 308 | 29 |
|  Total Sovereign Issues (Cost $20,751) | Total Sovereign Issues (Cost $20,751) | 10764 |
|  | **SHARES** |  |
| COMMON STOCKS 4.4% | COMMON STOCKS 4.4% | COMMON STOCKS 4.4% |
| COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% |
|  Clear Channel Outdoor Holdings, Inc. (d) | 531903 | 559 |
|  iHeartMedia, Inc. 'A' (d) | 126306 | 774 |
|  iHeartMedia, Inc. 'B' «(d) | 98039 | 541 |
|  |  | 1874 |

---

---

| | | |
|:---|:---|:---|
|  | **SHARES** | MARKET<br>VALUE<br>(000S) |
| CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% |
|  Promotora de Informaciones SA | 454519 | 137 |
| ENERGY 0.1% | ENERGY 0.1% | ENERGY 0.1% |
|  Axis Energy Services 'A' «(d)(k) | 1070 | 37 |
|  Noble Corp. PLC (d) | 13102 | 494 |
|  |  | 531 |
| FINANCIALS 1.1% | FINANCIALS 1.1% | FINANCIALS 1.1% |
|  Banca Monte dei Paschi di Siena SpA (d) | 687000 | 1415 |
|  Intelsat SA «(d)(k) | 172828 | 4148 |
|  |  | 5563 |
| INDUSTRIALS 2.9% | INDUSTRIALS 2.9% | INDUSTRIALS 2.9% |
|  Neiman Marcus Group Ltd. LLC «(d)(k) | 73491 | 12938 |
|  Syniverse Holdings, Inc. «(k) | 1842774 | 1771 |
|  Voyager Aviation Holdings LLC «(d) | 995 | 0 |
|  Westmoreland Mining<br>Holdings «(d)(k) | 50497 | 379 |
|  |  | 15088 |
|  Total Common Stocks (Cost $27,343) | Total Common Stocks (Cost $27,343) | 23193 |
| RIGHTS 0.0% | RIGHTS 0.0% | RIGHTS 0.0% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Jackson Holdings SA «(d) | 18304 | 124 |
|  Total Rights (Cost $0) | Total Rights (Cost $0) | 124 |
| WARRANTS 1.9% | WARRANTS 1.9% | WARRANTS 1.9% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Emergence<br>SA - Exp. 02/17/2027 « | 605 | 2 |
|  Intelsat Jackson Holdings<br>SA - Exp. 12/05/2025 « | 18079 | 136 |
|  |  | 138 |
| INFORMATION TECHNOLOGY 1.9% | INFORMATION TECHNOLOGY 1.9% | INFORMATION TECHNOLOGY 1.9% |
|  Windstream Holdings LLC -<br>Exp. 9/21/2055 « | 493740 | 9995 |
|  Total Warrants (Cost $8,255) | Total Warrants (Cost $8,255) | 10133 |
| PREFERRED SECURITIES 3.0% | PREFERRED SECURITIES 3.0% | PREFERRED SECURITIES 3.0% |
| BANKING & FINANCE 2.7% | BANKING & FINANCE 2.7% | BANKING & FINANCE 2.7% |
|  AGFC Capital Trust | AGFC Capital Trust | AGFC Capital Trust |
|  5.829% (US0003M + 1.750%) due 01/15/2067 ~(m) | 2300000 | 1290 |
|  Brighthouse Holdings LLC | Brighthouse Holdings LLC | Brighthouse Holdings LLC |
|  6.500% due 07/27/2037 þ(i) | 70000 | 62 |
|  Compeer Financial ACA | Compeer Financial ACA | Compeer Financial ACA |
|  4.875% due 08/15/2026 •(i)(m) | 1600000 | 1591 |
|  Farm Credit Bank of Texas | Farm Credit Bank of Texas | Farm Credit Bank of Texas |
|  5.700% due 09/15/2025 •(i) | 1000000 | 930 |
|  Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten |
|  6.500% due 12/29/2049 þ(i) | 10020000 | 10315 |
|  |  | 14188 |
| INDUSTRIALS 0.3% | INDUSTRIALS 0.3% | INDUSTRIALS 0.3% |
|  Voyager Aviation Holdings LLC « | 5971 | 1603 |
|  Total Preferred Securities (Cost $20,440) | Total Preferred Securities (Cost $20,440) | &nbsp;&nbsp;&nbsp;&nbsp;15791 |

---

---

| | | |
|:---|:---|:---|
| 42.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | |
|:---|:---|:---|:---|
|  | **SHARES** | **MARKET<br>VALUE<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| REAL ESTATE INVESTMENT TRUSTS 0.7% | REAL ESTATE INVESTMENT TRUSTS 0.7% | REAL ESTATE INVESTMENT TRUSTS 0.7% | REAL ESTATE INVESTMENT TRUSTS 0.7% |
| REAL ESTATE 0.7% | REAL ESTATE 0.7% | REAL ESTATE 0.7% | REAL ESTATE 0.7% |
|  CBL & Associates Properties, Inc. | 2634 | $— | 61 |
|  Uniti Group, Inc. | 239397 |  | 1324 |
|  VICI Properties, Inc. | 77566 |  | 2513 |
|  Total Real Estate Investment Trusts (Cost $1,645) | Total Real Estate Investment Trusts (Cost $1,645) |  | 3898 |
| SHORT-TERM INSTRUMENTS 11.9% | SHORT-TERM INSTRUMENTS 11.9% | SHORT-TERM INSTRUMENTS 11.9% | SHORT-TERM INSTRUMENTS 11.9% |
| REPURCHASE AGREEMENTS (l) 11.4% | REPURCHASE AGREEMENTS (l) 11.4% | REPURCHASE AGREEMENTS (l) 11.4% | REPURCHASE AGREEMENTS (l) 11.4% |
|  |  |  | &nbsp;&nbsp;&nbsp;&nbsp;59330 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **PRINCIPAL<br>AMOUNT<br>(000S)** | MARKET<br>VALUE<br>(000S) | MARKET<br>VALUE<br>(000S) |
| ARGENTINA TREASURY BILLS 0.0% | ARGENTINA TREASURY BILLS 0.0% | ARGENTINA TREASURY BILLS 0.0% | ARGENTINA TREASURY BILLS 0.0% | ARGENTINA TREASURY BILLS 0.0% |
|  18.872% due 05/19/2023 (f)(g)(h) |  | 70467 | $— | 214 |
| U.S. TREASURY BILLS 0.5% | U.S. TREASURY BILLS 0.5% | U.S. TREASURY BILLS 0.5% | U.S. TREASURY BILLS 0.5% | U.S. TREASURY BILLS 0.5% |
|  3.936% due 01/05/2023 - 03/02/2023 (e)(f)(p) | $— | 2432 |  | 2424 |
| Total Short-Term Instruments (Cost $62,001) | Total Short-Term Instruments (Cost $62,001) | Total Short-Term Instruments (Cost $62,001) |  | 61968 |
| Total Investments in Securities (Cost $822,616) | Total Investments in Securities (Cost $822,616) | Total Investments in Securities (Cost $822,616) |  | &nbsp;&nbsp;&nbsp;&nbsp;690522 |
| Total Investments 132.4% (Cost $822,616) | Total Investments 132.4% (Cost $822,616) | Total Investments 132.4% (Cost $822,616) | $— | 690522 |

---

---

| | | |
|:---|:---|:---|
|  | **MARKET<br>VALUE<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Financial Derivative<br>Instruments (n)(o) (0.2)%<br> (Cost or Premiums, net $(9603)) | $— | (916) |
| Auction-Rate Preferred Shares (4.5)% |  | &nbsp;&nbsp;&nbsp;&nbsp;(23525) |
| Other Assets and Liabilities, net (27.7)% |  | &nbsp;&nbsp;&nbsp;&nbsp;(144431) |
| Net Assets Applicable to Common Shareholders 100.0% | $— | 521650 |

---

#### NOTES TO SCHEDULE OF INVESTMENTS:
\* A zero balance may reflect actual amounts rounding to less than one thousand. 

---

| | |
|:---|:---|
| ^ | Security is in default.  |

---

---

| | |
|:---|:---|
| « | Security valued using significant unobservable inputs (Level 3).  |

---

---

| | |
|:---|:---|
| µ | All or a portion of this amount represents unfunded loan commitments. The interest rate for the unfunded portion will be determined at the time of funding. See Note 4, Securities and Other Investments, in the Notes to Financial Statements for more information regarding unfunded loan commitments.  |

---

---

| | |
|:---|:---|
| ~ | Variable or Floating rate security. Rate shown is the rate in effect as of period end. Certain variable rate securities are not based on a published reference rate and spread, rather are determined by the issuer or agent and are based on current market conditions. Reference rate is as of reset date, which may vary by security. These securities may not indicate a reference rate and/or spread in their description.  |

---

• Rate shown is the rate in effect as of period end. The rate may be based on a fixed rate, a capped rate or a floor rate and may convert to a variable or floating rate in the future. These securities do not indicate a reference rate and spread in their description. 

---

| | |
|:---|:---|
| þ | Coupon represents a rate which changes periodically based on a predetermined schedule or event. Rate shown is the rate in effect as of period end.  |

---

(a) Security is an Interest Only ("IO") or IO Strip. 

(b) Payment in-kind security. 

(c) Security is not accruing income as of the date of this report. 

(d) Security did not produce income within the last twelve months. 

(e) Coupon represents a weighted average yield to maturity. 

(f) Zero coupon security. 

(g) Coupon represents a yield to maturity. 

(h) Principal amount of security is adjusted for inflation. 

(i) Perpetual maturity; date shown, if applicable, represents next contractual call date. 

(j) Contingent convertible security. 

&nbsp;&nbsp;&nbsp;&nbsp;(k) RESTRICTED SECURITIES:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Issuer Description | Acquisition<br>Date | Cost | Market<br>Value | Market Value<br>as Percentage<br>of Net Assets<br>Applicable<br>to Common<br>Shareholders |
|  Axis Energy Services 'A' | 07/01/2021 | $16 | $37 | 0.01% |
|  Intelsat SA | 06/19/2017 - 02/23/2022 | 12540 | 4148 | 0.80 |
|  Neiman Marcus Group Ltd. LLC | 09/25/2020 | 2408 | 12938 | 2.48 |
|  Oracle Corp. 4.100% due 03/25/2061 | 06/17/2021 - 08/12/2021 | 220 | 140 | 0.02 |
|  Syniverse Holdings, Inc. | 05/12/2022 - 11/30/2022 | 1808 | 1771 | 0.34 |
|  Westmoreland Mining Holdings | 12/08/2014 - 10/19/2016 | 1455 | 379 | 0.07 |
|  |  | $&nbsp;&nbsp;&nbsp;&nbsp;18447 | $&nbsp;&nbsp;&nbsp;&nbsp;19413 | 3.72% |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 43.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Strategy Fund | (Cont.) |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS
&nbsp;&nbsp;&nbsp;&nbsp;(l) REPURCHASE AGREEMENTS:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Lending<br>Rate | Settlement<br>Date | Maturity<br>Date | Principal<br>Amount | Collateralized By | Collateral<br>(Received) | Repurchase<br>Agreements,<br>at Value | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> |
| FICC | 1.900% | 12/30/2022 | 01/03/2023 | $130 | U.S. Treasury Bills 0.000% due 06/29/2023 | $(133) | $130 | $130 |
| NOM | 4.320 | 12/30/2022 | 01/03/2023 | 59200 | U.S. Treasury Bonds 2.875% due 05/15/2043 | (60381) | 59200 | 59228 |
|  Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(60514) | $&nbsp;&nbsp;&nbsp;&nbsp;59330 | $&nbsp;&nbsp;&nbsp;&nbsp;59358 |

---

#### REVERSE REPURCHASE AGREEMENTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Counterparty | **Borrowing**<br> **Rate<sup>(2)</sup>** | Settlement<br>Date | Maturity<br>Date | Amount<br>Borrowed<sup>(2)</sup> | Payable for<br>Reverse<br>Repurchase<br>Agreements |
|  BOS | 3.760% | 09/12/2022 | 01/10/2023 | $(956) | $(967) |
|  | 3.760 | 10/21/2022 | 01/10/2023 | (1277) | &nbsp;&nbsp;&nbsp;&nbsp;(1287) |
|  BPS | (1.500) | 12/21/2022 | TBD<sup>(3)</sup> | (302) | (323) |
|  | 0.000 | 11/15/2022 | 01/30/2023 | $(621) | (621) |
|  | 2.270 | 11/24/2022 | 02/22/2023 | (518) | (556) |
|  | 2.330 | 11/22/2022 | 02/22/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(2358) | (2530) |
|  | 3.640 | 08/12/2022 | 02/13/2023 | $(4097) | (4156) |
|  | 3.900 | 09/02/2022 | 03/02/2023 | (3942) | (3995) |
|  | 4220 | 09/15/2022 | 03/14/2023 | (2369) | (2400) |
|  | 4.400 | 10/27/2022 | 01/30/2023 | (2517) | (2538) |
|  | 4.420 | 10/07/2022 | 01/09/2023 | (3027) | (3060) |
|  | 4.500 | 11/16/2022 | 01/17/2023 | (3382) | (3402) |
|  | 4.600 | 09/22/2022 | 03/23/2023 | (3075) | (3115) |
|  | 4.600 | 09/30/2022 | 03/23/2023 | (136) | (138) |
|  | 4.600 | 11/15/2022 | 01/19/2023 | (501) | (504) |
|  | 4.620 | 09/23/2022 | 03/23/2023 | (2605) | (2639) |
|  | 4.620 | 12/12/2022 | 03/23/2023 | (1708) | (1713) |
|  | 4.650 | 11/16/2022 | 01/17/2023 | (1798) | (1809) |
|  | 4.720 | 10/27/2022 | 01/30/2023 | (525) | (530) |
|  | 4.970 | 11/18/2022 | 02/10/2023 | (1070) | (1076) |
|  BRC | 1.900 | 12/21/2022 | TBD<sup>(3)</sup> | (193) | (207) |
|  BYR | 4.950 | 09/26/2022 | 03/24/2023 | $(896) | (903) |
|  | 4.960 | 10/17/2022 | 03/17/2023 | (1950) | (1966) |
|  CDC | 3.270 | 08/04/2022 | 01/09/2023 | (2289) | (2320) |
|  | 3.270 | 10/04/2022 | 01/09/2023 | (1076) | (1085) |
|  | 3.270 | 10/06/2022 | 01/09/2023 | (562) | (566) |
|  | 3.990 | 09/06/2022 | 03/03/2023 | (695) | (704) |
|  | 3.990 | 10/27/2022 | 03/03/2023 | (1341) | (1351) |
|  | 3.990 | 12/14/2022 | 03/03/2023 | (1288) | (1291) |
|  | 4.450 | 10/31/2022 | 01/30/2023 | (3032) | (3056) |
|  | 4.610 | 10/21/2022 | 02/17/2023 | (1109) | (1119) |
|  | 4.620 | 10/14/2022 | 02/13/2023 | (326) | (329) |
|  | 4.620 | 10/28/2022 | 02/13/2023 | (1737) | (1752) |
|  | 4.620 | 11/02/2022 | 02/13/2023 | (588) | (593) |
|  | 4.620 | 11/15/2022 | 02/13/2023 | (1031) | (1037) |
|  | 4.620 | 12/22/2022 | 02/13/2023 | (532) | (533) |
|  | 4.640 | 11/14/2022 | 02/13/2023 | (62) | (63) |
|  | 4.680 | 11/14/2022 | 02/13/2023 | (1243) | (1251) |
|  | 4.730 | 10/31/2022 | 01/30/2023 | (795) | (802) |
|  | 4.760 | 10/07/2022 | 04/05/2023 | (6709) | (6787) |
|  | 4.850 | 10/11/2022 | 04/06/2023 | (4794) | (4849) |
|  | 4.880 | 11/16/2022 | 02/07/2023 | (1127) | (1134) |
|  CEW | 2.400 | 08/05/2022 | TBD<sup>(3)</sup> | (2168) | (2640) |
|  IND | 4.530 | 10/28/2022 | 01/31/2023 | $(2767) | (2790) |
|  | 4.660 | 11/08/2022 | 01/31/2023 | (875) | (881) |
|  | 4.740 | 10/28/2022 | 01/31/2023 | (2607) | (2630) |
|  | 5.010 | 12/12/2022 | 03/07/2023 | (196) | (197) |
|  JML | 1.500 | 09/14/2022 | TBD<sup>(3)</sup> | (299) | (320) |
|  | 2.000 | 11/08/2022 | 02/07/2023 | (1292) | (1387) |
|  | 2.050 | 09/14/2022 | TBD<sup>(3)</sup> | (6035) | (6475) |
|  | 2.120 | 11/04/2022 | 02/07/2023 | (1515) | (1627) |
|  | 2.150 | 11/07/2022 | 02/09/2023 | (1691) | (1817) |
|  | 2.150 | 11/08/2022 | 02/07/2023 | (8306) | (8920) |
|  | 4.700 | 12/16/2022 | 02/03/2023 | $(234) | (235) |
|  | 4.750 | 12/16/2022 | 02/03/2023 | (4043) | (4052) |

---

---

| | | |
|:---|:---|:---|
| **44** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Borrowing**<br> **Rate<sup>(2)</sup>** | **Settlement<br>Date** | **Maturity<br>Date** | **Amount<br>Borrowed<sup>(2)</sup>** | **Payable for<br>Reverse<br>Repurchase<br>Agreements** |
|  MBC | 2.050 | 11/02/2022 | TBD<sup>(3)</sup> | (583) | $(626) |
|  MEI | 4.700 | 11/14/2022 | 02/13/2023 | $(186) | (187) |
|  | 4.700 | 11/15/2022 | 02/13/2023 | (307) | (309) |
|  | 4.700 | 11/29/2022 | 02/13/2023 | (951) | (955) |
|  | 4.720 | 10/24/2022 | 01/27/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(1174) | (1185) |
|  | 4.770 | 10/24/2022 | 01/27/2023 | (649) | (655) |
|  RCY | 4.170 | 09/16/2022 | 01/17/2023 | (1995) | (2020) |
|  | 4.590 | 10/17/2022 | 02/17/2023 | (279) | (282) |
|  RDR | 4.260 | 10/06/2022 | 02/03/2023 | (82) | (83) |
|  | 4.430 | 10/26/2022 | 01/30/2023 | (2133) | (2152) |
|  | 4.500 | 10/31/2022 | 01/30/2023 | (4569) | (4606) |
|  | 4.600 | 11/04/2022 | 02/03/2023 | (17) | (18) |
|  | 4.700 | 11/10/2022 | 02/10/2023 | (183) | (184) |
|  SCX | 4.530 | 10/03/2022 | 04/03/2023 | (878) | (889) |
|  SOG | 3.830 | 10/25/2022 | 02/17/2023 | (1585) | (1596) |
|  | 4.250 | 09/15/2022 | 01/13/2023 | (3269) | (3311) |
|  | 4.450 | 10/24/2022 | 02/06/2023 | (1163) | (1173) |
|  | 4.640 | 10/14/2022 | 02/14/2023 | (6923) | (6995) |
|  | 4.660 | 10/25/2022 | 01/25/2023 | (557) | (562) |
|  | 4.660 | 11/09/2022 | 01/24/2023 | (2057) | (2072) |
|  | 4.760 | 11/09/2022 | 02/17/2023 | (707) | (712) |
|  | 4.790 | 11/02/2022 | 02/02/2023 | (5048) | (5090) |
|  | 4.820 | 11/30/2022 | 02/22/2023 | (455) | (457) |
|  | 4.820 | 12/23/2022 | 02/22/2023 | (655) | (656) |
|  | 4.830 | 11/04/2022 | 02/06/2023 | (1281) | (1292) |
|  | 4.900 | 10/12/2022 | 04/12/2023 | (6008) | (6076) |
|  UBS | 2.150 | 11/22/2022 | 02/20/2023 | (1801) | (1932) |
|  | 4.220 | 09/19/2022 | 01/19/2023 | $(919) | (931) |
|  | 4.320 | 09/27/2022 | 01/27/2023 | (7766) | (7857) |
|  | 4.380 | 10/03/2022 | 02/03/2023 | (1772) | (1792) |
|  | 4.590 | 10/14/2022 | 01/17/2023 | (7871) | (7953) |
|  | 4.840 | 11/02/2022 | 02/03/2023 | (6198) | (6250) |
|  Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(175886) |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS SUMMARY
The following is a summary by counterparty of the market value of Borrowings and Other Financing Transactions and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> | Payable for<br>Reverse<br>Repurchase<br>Agreements | Payable for<br>Sale-Buyback<br>Transactions | Total<br>Borrowings and<br>Other Financing<br>Transactions | Collateral<br>Pledged/(Received) | Net Exposure<sup>(4)</sup> |
|  Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement |
|  BOS | $0 | $(2254) | $0 | $(2254) | $2429 | $175 |
|  BPS | 0 | (35105) | 0 | (35105) | 40267 | 5162 |
|  BRC | 0 | (207) | 0 | (207) | 103 | (104) |
|  BYR | 0 | (2869) | 0 | (2869) | 3295 | 426 |
|  CDC | 0 | (30622) | 0 | (30622) | 34318 | 3696 |
|  CEW | 0 | (2640) | 0 | (2640) | 2444 | (196) |
|  FICC | 130 | 0 | 0 | 130 | (133) | (3) |
|  IND | 0 | (6498) | 0 | (6498) | 7488 | 990 |
|  JML | 0 | (24833) | 0 | (24833) | 27482 | 2649 |
|  MBC | 0 | (626) | 0 | (626) | 698 | 72 |
|  MEI | 0 | (3291) | 0 | (3291) | 4242 | 951 |
|  NOM | 59228 | 0 | 0 | 59228 | (60381) | &nbsp;&nbsp;&nbsp;&nbsp;(1153) |
|  RCY | 0 | (2302) | 0 | (2302) | 3081 | 779 |
|  RDR | 0 | (7043) | 0 | (7043) | 7384 | 341 |
|  SCX | 0 | (889) | 0 | (889) | 923 | 34 |
|  SOG | 0 | (29992) | 0 | (29992) | 35285 | 5293 |
|  UBS | 0 | (26715) | 0 | (26715) | 31219 | 4504 |
|  Total Borrowings and Other Financing Transactions | $&nbsp;&nbsp;&nbsp;&nbsp;59358 | $&nbsp;&nbsp;&nbsp;&nbsp;(175886) | $&nbsp;&nbsp;&nbsp;&nbsp;0 |  |  |  |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 45.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Strategy Fund | (Cont.) |

---

#### CERTAIN TRANSFERS ACCOUNTED FOR AS SECURED BORROWINGS

#### Remaining Contractual Maturity of the Agreements

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Overnight and<br>Continuous | Up to 30 days | 31-90 days | Greater Than 90 days | Total |
|  Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements |
|  Corporate Bonds & Notes | $0 | $(53831) | $(76002) | $(28181) | $158014 |
|  U.S. Government Agencies | 0 | (2020) | (282) | 0 | (2302) |
|  Sovereign Issues | 0 | 0 | (4287) | 0 | (4287) |
|  Preferred Securities | 0 | 0 | (10273) | (1010) | (11283) |
|  Total Borrowings | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(55851) | $&nbsp;&nbsp;&nbsp;&nbsp;(90844) | $&nbsp;&nbsp;&nbsp;&nbsp;(29191) | $&nbsp;&nbsp;&nbsp;&nbsp;(175886) |
|  Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | $(175886) |

---

(m) Securities with an aggregate market value of $204,889 and cash of $1,154 have been pledged as collateral under the terms of the above master agreements as of December 31, 2022. 

<sup>(1)</sup> Includes accrued interest. 

<sup>(2)</sup> The average amount of borrowings outstanding during the period ended December 31, 2022 was $(217617) at a weighted average interest rate of 2.698%. Average borrowings may include reverse repurchase agreements and sale-buyback transactions, if held during the period. 

<sup>(3)</sup> Open maturity reverse repurchase agreement. 

<sup>(4)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from borrowings and other financing transactions can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

&nbsp;&nbsp;&nbsp;&nbsp;(n) FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Variation Margin | Variation Margin |
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | **Notional<br>Amount<sup>(3)</sup>** | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Asset | Liability |
|  Bombardier, Inc. | 5.000% | Quarterly | 06/20/2024 | 2.622% | $3600 | $(163) | $289 | $126 | $0 | $(8) |
|  Bombardier, Inc. | 5.000 | Quarterly | 06/20/2025 | 3.222 | 100 | (8) | 12 | 4 | 0 | 0 |
|  Bombardier, Inc. | 5.000 | Quarterly | 06/20/2027 | 4.245 | 3100 | (265) | 356 | 91 | 0 | (2) |
|  Ford Motor Credit Co. LLC | 5.000 | Quarterly | 06/20/2027 | 3.169 | 3500 | 371 | (125) | 246 | 1 | 0 |
|  Jaguar Land Rover Automotive | 5.000 | Quarterly | 12/20/2026 | 9.896 | 3363 | 123 | (625) | (502) | 2 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 12/20/2025 | 2.767 | 6200 | (677) | 360 | (317) | 1 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 06/20/2026 | 2.993 | 2000 | (149) | 17 | (132) | 0 | (1) |
|  Rolls-Royce PLC | 1.000 | Quarterly | 06/20/2027 | 3.357 | 2100 | (160) | (42) | (202) | 0 | (2) |
|  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(928) | $&nbsp;&nbsp;&nbsp;&nbsp;242 | $&nbsp;&nbsp;&nbsp;&nbsp;(686) | $&nbsp;&nbsp;&nbsp;&nbsp;4 | $&nbsp;&nbsp;&nbsp;&nbsp;(13) |

---

#### INTEREST RATE SWAPS

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | Variation Margin | Variation Margin |
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/<br>(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | Asset | Liability |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750% | Annual | 09/21/2032 | 7800 | $757 | $1551 | $2308 | $6 | $0 |
|  Receive<sup>(5)</sup> | 1-Day GBP-SONIO Compounded-OIS | 2.000 | Annual | 03/15/2033 | 2800 | 311 | 166 | 477 | 2 | 0 |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750 | Annual | 09/21/2052 | 1600 | 328 | 631 | 959 | 2 | 0 |
|  Receive | 1-Day USD-Federal Funds Rate Compounded-OIS | 0.100 | Annual | 01/13/2023 | $1000 | 0 | 18 | 18 | 0 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.450 | Annual | 12/20/2024 | 21800 | (1) | 326 | 325 | 11 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.350 | Annual | 01/17/2025 | 11000 | 1 | 162 | 163 | 4 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.300 | Annual | 01/17/2026 | 1700 | 1 | 40 | 41 | 2 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2027 | 32300 | (2862) | 299 | (2563) | 0 | (48) |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2029 | &nbsp;&nbsp;&nbsp;&nbsp;118700 | (12228) | 625 | (11603) | 53 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2032 | 23900 | (3269) | 143 | (3126) | 0 | (69) |
|  Pay | 3-Month USD-LIBOR | 2.750 | Semi-Annual | 12/19/2023 | 64000 | (594) | (887) | (1481) | 0 | (40) |
|  Pay | 3-Month USD-LIBOR | 2.750 | Semi-Annual | 06/17/2025 | 75590 | 4664 | (7834) | (3170) | 0 | (111) |
|  Receive | 3-Month USD-LIBOR | 1.250 | Semi-Annual | 12/15/2026 | 56800 | (960) | 7025 | 6065 | 94 | 0 |
|  Pay | 3-Month USD-LIBOR | 2.500 | Semi-Annual | 12/20/2027 | &nbsp;&nbsp;&nbsp;&nbsp;44900 | 325 | (3433) | (3108) | 0 | (77) |
|  Receive | 3-Month USD-LIBOR | 1.370 | Semi-Annual | 08/25/2028 | 16898 | 0 | 2218 | 2218 | 32 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.000 | Semi-Annual | 06/19/2029 | 68300 | 3736 | (7406) | (3670) | 0 | (147) |
|  Receive | 3-Month USD-LIBOR | 0.750 | Semi-Annual | 06/16/2031 | 46800 | 3315 | 7247 | 10562 | 111 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.750 | Semi-Annual | 06/16/2031 | 10400 | 860 | 1484 | 2344 | 19 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 12/15/2031 | 36100 | (572) | 6358 | 5786 | 69 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.500 | Semi-Annual | 06/19/2044 | 93400 | (3047) | 502 | (2545) | 70 | 0 |

---

---

| | | |
|:---|:---|:---|
| **46** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value** | **Variation Margin** | **Variation Margin** |
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value** | **Asset** | **Liability** |
|  Receive | 3-Month USD-LIBOR | 2.000 | Semi-Annual | 01/15/2050 | $8300 | $(60) | $2326 | $2266 | $40 | $0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 01/22/2050 | 14500 | (33) | 4644 | 4611 | 68 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.875 | Semi-Annual | 02/07/2050 | 15100 | (58) | 4519 | 4461 | 73 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 03/12/2050 | &nbsp;&nbsp;&nbsp;&nbsp;10800 | (33) | 2480 | 2447 | 56 | 0 |
|  Pay | 3-Month USD-LIBOR | 2.000 | Semi-Annual | 12/15/2051 | 10900 | 798 | (3844) | (3046) | 0 | (55) |
|  Receive | 3-Month USD-LIBOR | 1.700 | Semi-Annual | 02/01/2052 | 76450 | (1229) | 26251 | 25022 | 0 | (97) |
|  Pay | 6-Month AUD-BBR-BBSW | 3.500 | Semi-Annual | 06/17/2025 | 7600 | 188 | (273) | (85) | 0 | (1) |
|  Receive | 6-Month EUR-EURIBOR | 0.150 | Annual | 03/18/2030 | 8700 | 159 | 1877 | 2036 | 33 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 0.250 | Annual | 09/21/2032 | 6200 | 583 | 1068 | 1651 | 30 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 0.500 | Annual | 09/21/2052 | 2600 | 225 | 920 | 1145 | 23 | 0 |
|  Receive<sup>(5)</sup> | 6-Month EUR-EURIBOR | 0.830 | Annual | 12/09/2052 | 8100 | 20 | 240 | 260 | 11 | 0 |
|  |  |  |  |  |  | $(8675) | $49443 | $40768 | $809 | $(645) |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(9603) | $&nbsp;&nbsp;&nbsp;&nbsp;49685 | $&nbsp;&nbsp;&nbsp;&nbsp;40082 | $&nbsp;&nbsp;&nbsp;&nbsp;813 | $&nbsp;&nbsp;&nbsp;&nbsp;(658) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED SUMMARY
The following is a summary of the market value and variation margin of Exchange-Traded or Centrally Cleared Financial Derivative Instruments as of December 31, 2022:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities |
|  | Market Value | Variation Margin<br>Asset | Variation Margin<br>Asset | **Total** | Market Value | Variation Margin<br>Liability | **Total** |
|  | Purchased<br>Options | Futures | Swap<br>Agreements | **Total** | Written<br>Options | Futures | **Total** |
|  Total Exchange-Traded or Centrally Cleared | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;813 | $&nbsp;&nbsp;&nbsp;&nbsp;813 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(658) |

---

Cash of $24,463 has been pledged as collateral for exchange-traded and centrally cleared financial derivative instruments as of December 31, 2022. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information.

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> This instrument has a forward starting effective date. See Note 2, Securities Transactions and Investment Income, in the Notes to Financial Statements for further information. 

&nbsp;&nbsp;&nbsp;&nbsp;(o) FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER

#### FORWARD FOREIGN CURRENCY CONTRACTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | Unrealized Appreciation/<br>(Depreciation) | Unrealized Appreciation/<br>(Depreciation) |
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | Asset | Liability |
|  BOA | 01/2023 | 1486 | $1573 | $0 | $(19) |
|  | 02/2023 | 1648 | 1741 | 0 | (50) |
|  | 02/2023 | 1457 | 371 | 0 | (11) |
|  BPS | 01/2023 | $605 | 568 | 3 | 0 |
|  BRC | 01/2023 | 519 | 431 | 2 | 0 |
|  | 02/2023 | 847 | $903 | 0 | (17) |
|  CBK | 01/2023 | 1511 | $1613 | $0 | $(5) |
|  | 01/2023 | 5135 | 1279 | 0 | (71) |
|  | 01/2023 | $393 | 370 | 3 | 0 |
|  | 02/2023 | 4635 | $859 | 0 | (14) |
|  | 03/2023 | 1627 | 421 | 0 | (5) |
|  | 05/2023 | 1239 | 312 | 0 | (10) |
|  GLM | 03/2023 | $88 | 1800 | 4 | 0 |
|  | 05/2023 | 2536 | 10265 | 139 | 0 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **47** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Strategy Fund | (Cont.) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | **Unrealized Appreciation/<br>(Depreciation)** | **Unrealized Appreciation/<br>(Depreciation)** |
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | **Asset** | **Liability** |
|  MBC | 01/2023 | 46163 | $48389 | 0 | (1047) |
|  | 01/2023 | 974 | 1187 | 9 | 0 |
|  | 01/2023 | $362 | 341 | 3 | 0 |
|  | 02/2023 | 1139 | $859 | 18 | 0 |
|  MYI | 01/2023 | 285 | 191 | 0 | (3) |
|  Total Forward Foreign Currency Contracts | Total Forward Foreign Currency Contracts | Total Forward Foreign Currency Contracts | Total Forward Foreign Currency Contracts | $&nbsp;&nbsp;&nbsp;&nbsp;181 | $&nbsp;&nbsp;&nbsp;&nbsp;(1252) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER SUMMARY
The following is a summary by counterparty of the market value of OTC financial derivative instruments and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | | | |
| Counterparty | Forward<br>Foreign<br>Currency<br>Contracts | Purchased<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Forward<br>Foreign<br>Currency<br>Contracts | Written<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Net Market<br>Value of OTC<br>Derivatives | Collateral<br>Pledged/<br>(Received) | Net<br>Exposure<sup>(1)</sup> |
|  BOA | $0 | $0 | $0 | $0 | $(80) | $0 | $0 | $(80) | $(80) | $71 | $(9) |
|  BPS | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 3 | 0 | 3 |
|  BRC | 2 | 0 | 0 | 2 | (17) | 0 | 0 | (17) | (15) | 0 | (15) |
|  CBK | 3 | 0 | 0 | 3 | (105) | 0 | 0 | (105) | (102) | 0 | (102) |
|  GLM | 143 | 0 | 0 | 143 | 0 | 0 | 0 | 0 | 143 | 0 | 143 |
|  MBC | 30 | 0 | 0 | 30 | (1047) | 0 | 0 | (1047) | (1017) | 804 | (213) |
|  MYI | 0 | 0 | 0 | 0 | (3) | 0 | 0 | (3) | (3) | 0 | (3) |
|  Total Over the Counter | $&nbsp;&nbsp;&nbsp;&nbsp;181 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;181 | $&nbsp;&nbsp;&nbsp;&nbsp;(1252) | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(1252) |  |  |  |

---

(p) Securities with an aggregate market value of $874 have been pledged as collateral for financial derivative instruments as governed by International Swaps and Derivatives Association, Inc. master agreements as of December 31, 2022. 

<sup>(1)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from OTC financial derivative instruments can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

#### FAIR VALUE OF FINANCIAL DERIVATIVE INSTRUMENTS
The following is a summary of the fair valuation of the Fund's derivative instruments categorized by risk exposure. See Note 7, Principal and Other Risks, in the Notes to Financial Statements on risks of the Fund.

Fair Values of Financial Derivative Instruments on the Statements of Assets and Liabilities as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $4 | $0 | $0 | $809 | $813 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $181 | $0 | $181 |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;4 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;181 | $&nbsp;&nbsp;&nbsp;&nbsp;809 | $&nbsp;&nbsp;&nbsp;&nbsp;994 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $13 | $0 | $0 | $645 | $658 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $1252 | $0 | $1252 |
|  | $0 | $13 | $0 | $1252 | $645 | $1910 |

---

---

| | | |
|:---|:---|:---|
| 48.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

The effect of Financial Derivative Instruments on the Statements of Operations for the period ended December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $423 | $0 | $0 | $29444 | $29867 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $2171 | $0 | $2171 |
|  | $0 | $423 | $0 | $2171 | $29444 | $32038 |
|  Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $1583 | $0 | $0 | $(23465) | $(21882) |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts | $0 | $0 | $0 | $(2623) | $0 | $(2623) |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;1583 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(2623) | $&nbsp;&nbsp;&nbsp;&nbsp;(23465) | $&nbsp;&nbsp;&nbsp;&nbsp;(24505) |

---

#### FAIR VALUE MEASUREMENTS
The following is a summary of the fair valuations according to the inputs used as of December 31, 2022 in valuing the Fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Category and Subcategory | Level 1 | Level 2 | Level 3 | **Fair**<br> **Value at<br>12/31/2022** |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;153300 | $&nbsp;&nbsp;&nbsp;&nbsp;26393 | $&nbsp;&nbsp;&nbsp;&nbsp;179693 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Banking & Finance | 0 | 56115 | 0 | 56115 |
| &nbsp;&nbsp; Industrials | 0 | 164294 | 0 | 164294 |
| &nbsp;&nbsp; Utilities | 0 | 30252 | 0 | 30252 |
|  Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes |
| &nbsp;&nbsp; Industrials | 0 | 2139 | 0 | 2139 |
|  Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes |
| &nbsp;&nbsp; California | 0 | 491 | 0 | 491 |
| &nbsp;&nbsp; Illinois | 0 | 4961 | 0 | 4961 |
| &nbsp;&nbsp; Puerto Rico | 0 | 539 | 0 | 539 |
| &nbsp;&nbsp; West Virginia | 0 | 3306 | 0 | 3306 |
|  U.S. Government Agencies | 0 | 7192 | 4731 | 11923 |
|  Non-Agency Mortgage-Backed Securities | 0 | 46941 | 0 | 46941 |
|  Asset-Backed Securities | 0 | 58948 | 5049 | 63997 |
|  Sovereign Issues | 0 | 10764 | 0 | 10764 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | 1333 | 0 | 541 | 1874 |
| &nbsp;&nbsp; Consumer Staples | 137 | 0 | 0 | 137 |
| &nbsp;&nbsp; Energy | 494 | 0 | 37 | 531 |
| &nbsp;&nbsp; Financials | 1415 | 0 | 4148 | 5563 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 15088 | 15088 |
|  Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 0 | 0 | 124 | 124 |
|  Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 0 | 0 | 138 | 138 |
| &nbsp;&nbsp; Information Technology | 0 | 0 | 9995 | 9995 |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Banking & Finance | 0 | 14188 | 0 | 14188 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Level 1** | **Level 2** | **Level 3** | **Fair**<br> **Value at<br>12/31/2022** |
| &nbsp;&nbsp; Industrials | $0 | $0 | $1603 | $1603 |
|  Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts |
| &nbsp;&nbsp; Real Estate | 3898 | 0 | 0 | 3898 |
|  Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments |
| &nbsp;&nbsp; Repurchase Agreements | 0 | 59330 | 0 | 59330 |
| &nbsp;&nbsp; Argentina Treasury Bills | 0 | 214 | 0 | 214 |
| &nbsp;&nbsp; U.S. Treasury Bills | 0 | 2424 | 0 | 2424 |
|  Total Investments | $&nbsp;&nbsp;&nbsp;&nbsp;7277 | $&nbsp;&nbsp;&nbsp;&nbsp;615398 | $&nbsp;&nbsp;&nbsp;&nbsp;67847 | $&nbsp;&nbsp;&nbsp;&nbsp;690522 |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | 0 | 813 | 0 | 813 |
|  Over the counter | 0 | 181 | 0 | 181 |
|  | $0 | $994 | $0 | $994 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | $0 | $(658) | $0 | $(658) |
|  Over the counter | 0 | (1252) | 0 | (1252) |
|  | $0 | $(1910) | $0 | $(1910) |
|  Total Financial Derivative Instruments | $0 | $(916) | $0 | $(916) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;7277 | $&nbsp;&nbsp;&nbsp;&nbsp;614482 | $&nbsp;&nbsp;&nbsp;&nbsp;67847 | $&nbsp;&nbsp;&nbsp;&nbsp;689606 |

---

The following is a reconciliation of the fair valuations using significant unobservable inputs (Level 3) for the Fund during the period ended December 31, 2022:

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Category and Subcategory | Beginning<br>Balance<br>at 06/30/2022 | Net<br>Purchases | Net<br>Sales/<br>Settlements | Accrued<br>Discounts/<br>(Premiums) | Realized<br>Gain/(Loss) | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<sup>(1)</sup> | Transfers into<br>Level 3 | Transfers out<br>of Level 3 | Ending<br>Balance<br>at 12/31/2022 | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<br>on Investments<br>Held at<br>12/31/2022<sup>(1)</sup> |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $&nbsp;&nbsp;&nbsp;&nbsp;28415 | $&nbsp;&nbsp;&nbsp;&nbsp;17838 | $&nbsp;&nbsp;&nbsp;&nbsp;(4526) | $&nbsp;&nbsp;&nbsp;&nbsp;(362) | $&nbsp;&nbsp;&nbsp;&nbsp;(42) | $(461) | $&nbsp;&nbsp;&nbsp;&nbsp;10678 | $&nbsp;&nbsp;&nbsp;&nbsp;(25147) | $&nbsp;&nbsp;&nbsp;&nbsp;26393 | $&nbsp;&nbsp;&nbsp;&nbsp;579 |
|  Corporate Bonds & Notes Industrials | 25248 | 287 | 0 | 50 | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(1438) | 0 | (24147) | 0 | 0 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **49** |

---

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| Schedule of Investments | PIMCO Corporate & Income Strategy Fund | (Cont.) | December 31, 2022 | (Unaudited) |

---

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Beginning<br>Balance<br>at 06/30/2022** | **Net<br>Purchases** | **Net<br>Sales/<br>Settlements** | **Accrued<br>Discounts/<br>(Premiums)** | **Realized<br>Gain/(Loss)** | **Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<sup>(1)</sup>** | **Transfers into<br>Level 3** | **Transfers out<br>of Level 3** | **Ending<br>Balance<br>at 12/31/2022** | **Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<br>on Investments<br>Held at<br>12/31/2022<sup>(1)</sup>** |
|  U.S. Government Agencies | 4747 | 0 | (59) | 10 | 20 | 13 | 0 | 0 | 4731 | 9 |
|  Asset-Backed Securities | 6934 | 0 | (473) | 14 | (1306) | (120) | 0 | 0 | 5049 | (1421) |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | 696 | 0 | 0 | 0 | 0 | (155) | 0 | 0 | 541 | (155) |
| &nbsp;&nbsp; Energy | 16 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 37 | 21 |
| &nbsp;&nbsp; Financials | 4839 | 0 | 0 | 0 | 0 | (691) | 0 | 0 | 4148 | (691) |
| &nbsp;&nbsp; Industrials | 14393 | 118 | 0 | 0 | 0 | 577 | 0 | 0 | 15088 | 577 |
| &nbsp;&nbsp; Materials | 27 | 0 | (29) | 0 | 29 | (27) | 0 | 0 | 0 | 0 |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 87 | 0 | 0 | 0 | 0 | 37 | 0 | 0 | 124 | 37 |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 92 | 0 | 0 | 0 | 0 | 46 | 0 | 0 | 138 | 46 |
| &nbsp;&nbsp; Industrials | 464 | 0 | (94) | 0 | 94 | (464) | 0 | 0 | 0 | 0 |
| &nbsp;&nbsp; Information Technology | 10529 | 0 | 0 | 0 | 0 | (534) | 0 | 0 | 9995 | (534) |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Industrials | 30044 | 0 | (34591) | 0 | 19229 | (13079) | 0 | 0 | 1603 | (203) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;126531 | $&nbsp;&nbsp;&nbsp;&nbsp;18243 | $&nbsp;&nbsp;&nbsp;&nbsp;(39772) | $&nbsp;&nbsp;&nbsp;&nbsp;(288) | $&nbsp;&nbsp;&nbsp;&nbsp;18024 | $&nbsp;&nbsp;&nbsp;&nbsp;(16275) | $&nbsp;&nbsp;&nbsp;&nbsp;10678 | $&nbsp;&nbsp;&nbsp;&nbsp;(49294) | $&nbsp;&nbsp;&nbsp;&nbsp;67847 | $&nbsp;&nbsp;&nbsp;&nbsp;(1735) |

---

The following is a summary of significant unobservable inputs used in the fair valuations of assets and liabilities categorized within Level 3 of the fair value hierarchy:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Ending<br>Balance<br>at 12/31/2022** | **Valuation<br>Technique** | **Unobservable<br>Inputs** |  | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) |
| **Category and Subcategory** | **Ending<br>Balance<br>at 12/31/2022** | **Valuation<br>Technique** | **Unobservable<br>Inputs** |  | Input Value(s) | Weighted<br>Average |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $5442 | Discounted Cash Flow | Discount Spread |  | 9.080 |  |
|  | 5228 | Proxy Pricing | Base Price |  | 95.286 |  |
|  | 15723 | Third Party Vendor | Broker Quote |  | 35.000-87.500 | 69.678 |
|  U.S. Government Agencies | 4731 | Discounted Cash Flow | Discount Rate |  | 12.000 |  |
|  Asset-Backed Securities | 5049 | Discounted Cash Flow | Discount Rate |  | 10.000-20.000 | 16.856 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp;&nbsp;&nbsp; Communication Services | 541 | Reference Instrument | Stock Price W/<br>Liquidity Discount |  | 10.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Energy | 37 | Market Comparable Valuation | EBITDA Multiple |  | 4.600 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 4148 | Indicative Market Quotation | Price | $— | 24.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 12938 | Market Comparable Valuation<br>/ Discounted Cash Flow | Revenue \|<br>EBITDA<br>Multiple /<br>Discount Rate | /% | 0.620\|6.160/10.000 |  |
|  | 1771 | Discounted Cash Flow | Discount Rate |  | 11.590 |  |
|  | 379 | Indicative Market Quotation | Price | $— | 7.500 |  |
|  Rights |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 124 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 2 | Indicative Market Quotation | Price | $— | 2.000-3.500 | &nbsp;&nbsp;&nbsp;&nbsp;3.273 |
|  | 136 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Information Technology | 9995 | Market Comparable Valuation | EBITDA Multiple |  | 4.500 |  |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 1603 | Market Comparable Valuation<br>/ Discounted Cash Flow | TBV Multiple/<br>Discount Rate | /% | 0.370/24.820 |  |
|  Total | $&nbsp;&nbsp;&nbsp;&nbsp;67847 |  |  |  |  |  |

---

<sup>(1)</sup> Any difference between Net Change in Unrealized Appreciation/(Depreciation) and Net Change in Unrealized Appreciation/(Depreciation) on Investments Held at December 31, 2022 may be due to an investment no longer held or categorized as Level 3 at period end. 

<sup>(2)</sup> Includes valuation techniques not defined in the Notes to Financial Statements as securities valued using such techniques are not considered significant to the Fund. 

---

| | | |
|:---|:---|:---|
| **50** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | | | |
|:---|:---|:---|:---|
| Schedule of Investments | PIMCO High Income Fund | December 31, 2022 | (Unaudited) |

---

#### (Amounts in thousands\*, except number of shares, contracts, units and ounces, if any)

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| INVESTMENTS IN SECURITIES 130.8% | INVESTMENTS IN SECURITIES 130.8% | INVESTMENTS IN SECURITIES 130.8% |
| LOAN PARTICIPATIONS AND ASSIGNMENTS 29.2% | LOAN PARTICIPATIONS AND ASSIGNMENTS 29.2% | LOAN PARTICIPATIONS AND ASSIGNMENTS 29.2% |
|  AmSurg LLC | AmSurg LLC | AmSurg LLC |
|  TBD% due 04/29/2027 µ | 1615 | 1581 |
|  AP Core Holdings LLC | AP Core Holdings LLC | AP Core Holdings LLC |
|  9.884% (LIBOR01M + 5.500%) due 09/01/2027 ~ | 15313 | 13858 |
|  Carnival Corp. | Carnival Corp. | Carnival Corp. |
|  5.648% (EUR001M + 3.750%) due 06/30/2025 ~ | 2462 | 2540 |
|  Diamond Sports Group LLC | Diamond Sports Group LLC | Diamond Sports Group LLC |
|  12.317% due 05/25/2026 | 13924 | 13231 |
|  DirecTV Financing LLC | DirecTV Financing LLC | DirecTV Financing LLC |
|  9.384% (LIBOR01M + 5.000%) due 08/02/2027 ~ | 2642 | 2578 |
|  Envision Healthcare Corp. | Envision Healthcare Corp. | Envision Healthcare Corp. |
|  12.119% due 04/29/2027 | 8885 | 8696 |
|  15.744% due 04/28/2028 | 21083 | &nbsp;&nbsp;&nbsp;&nbsp;17253 |
|  Forbes Energy Services LLC | Forbes Energy Services LLC | Forbes Energy Services LLC |
|  7.000% due 06/30/2023 « | 954 | 0 |
|  11.000% due 06/30/2023 « | 13 | 0 |
|  Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. |
|  12.138% due 10/15/2027 | 7395 | 7303 |
|  12.565% due 10/18/2027 | 1613 | 1177 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  7.445% due 02/01/2029 | 4244 | 4106 |
|  Lealand Finance Co. BV | Lealand Finance Co. BV | Lealand Finance Co. BV |
|  7.384% (LIBOR01M + 3.000%) due 06/28/2024 ~ | 105 | 68 |
|  Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) |
|  8.384% (LIBOR01M + 1.000%) due 06/30/2025 ~(b) | 513 | 276 |
|  MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC |
|  8.985% (LIBOR03M + 4.250%) due 09/01/2028 ~ | 7623 | 6546 |
|  Oi SA | Oi SA | Oi SA |
|  TBD% due 02/26/2035 « | 3485 | 1220 |
|  Poseidon Bidco SASU | Poseidon Bidco SASU | Poseidon Bidco SASU |
|  7.452% (EUR003M + 5.250%) due 07/14/2028 «~ | 7400 | 6825 |
|  Promotora de Informaciones SA | Promotora de Informaciones SA | Promotora de Informaciones SA |
|  6.708% (EUR003M + 5.250%) due 12/31/2026 «~ | 11661 | 10735 |
|  8.000% (EUR003M + 8.000%) due 06/30/2027 «~ | 1706 | 1598 |
|  PUG LLC | PUG LLC | PUG LLC |
|  7.884% (LIBOR01M + 3.500%) due 02/12/2027 ~ | 12680 | 10556 |
|  Redstone Holdco 2 LP | Redstone Holdco 2 LP | Redstone Holdco 2 LP |
|  9.108% (LIBOR03M + 4.750%) due 04/27/2028 ~ | 4100 | 2858 |
|  Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. |
|  9.485% (LIBOR03M + 4.750%) due 06/01/2028 «~ | 1284 | 610 |
|  Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) |
|  10.750% (EUR006M) due 06/30/2023 ~(b) | 16066 | 11064 |
|  Syniverse Holdings, Inc. | Syniverse Holdings, Inc. | Syniverse Holdings, Inc. |
|  11.580% due 05/13/2027 | 19788 | 17364 |
|  Team Health Holdings, Inc. | Team Health Holdings, Inc. | Team Health Holdings, Inc. |
|  7.134% (LIBOR01M + 2.750%) due 02/06/2024 ~ | 15164 | 13041 |
|  Telemar Norte Leste SA | Telemar Norte Leste SA | Telemar Norte Leste SA |
|  TBD% due 02/26/2035 « | 19258 | 6741 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  9.438% (LIBOR01M + 5.000%) due 06/26/2026 ~ | 23731 | 13393 |
|  9.938% (LIBOR01M + 5.500%) due 06/26/2026 ~ | 1749 | 987 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  9.730% (LIBOR03M + 5.000%) due 09/01/2025 ~ | 5400 | 3837 |
|  Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) |
|  15.000% due 03/15/2029 (b) | 8312 | 6463 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Windstream Services LLC | Windstream Services LLC | Windstream Services LLC |
|  10.673% (LIBOR01M + 6.250%) due 09/21/2027 ~ | 2646 | 2407 |
|  Total Loan Participations and Assignments (Cost $223,394) | Total Loan Participations and Assignments (Cost $223,394) | &nbsp;&nbsp;&nbsp;&nbsp;188912 |
| CORPORATE BONDS & NOTES 45.1% | CORPORATE BONDS & NOTES 45.1% | CORPORATE BONDS & NOTES 45.1% |
| BANKING & FINANCE 10.8% | BANKING & FINANCE 10.8% | BANKING & FINANCE 10.8% |
|  Ally Financial, Inc. | Ally Financial, Inc. | Ally Financial, Inc. |
|  8.000% due 11/01/2031 | 1108 | 1155 |
|  Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. |
|  4.625% due 06/15/2029 (k) | 1870 | 1499 |
|  Armor Holdco, Inc. | Armor Holdco, Inc. | Armor Holdco, Inc. |
|  8.500% due 11/15/2029 (k) | 1900 | 1429 |
|  Atlantic Marine Corps Communities LLC | Atlantic Marine Corps Communities LLC | Atlantic Marine Corps Communities LLC |
|  5.383% due 02/15/2048 (k) | 4221 | 3452 |
|  Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA |
|  1.875% due 01/09/2026 | 1400 | 1289 |
|  2.625% due 04/28/2025 | 9492 | 9220 |
|  3.625% due 09/24/2024 | 2131 | 2171 |
|  5.375% due 01/18/2028 •  | 1700 | 1471 |
|  8.000% due 01/22/2030 •  | 2230 | 2095 |
|  8.500% due 09/10/2030 •  | 3500 | 3305 |
|  10.500% due 07/23/2029 | 2067 | 2055 |
|  Banco de Credito del Peru SA | Banco de Credito del Peru SA | Banco de Credito del Peru SA |
|  4.650% due 09/17/2024 | 1000 | 246 |
|  Barclays PLC | Barclays PLC | Barclays PLC |
|  7.437% due 11/02/2033 •  | 2112 | 2219 |
|  BNP Paribas SA | BNP Paribas SA | BNP Paribas SA |
|  3.132% due 01/20/2033 •  | 1861 | 1474 |
|  BOI Finance BV | BOI Finance BV | BOI Finance BV |
|  7.500% due 02/16/2027 | 3300 | 2853 |
|  Claveau Re Ltd. | Claveau Re Ltd. | Claveau Re Ltd. |
|  21.590% (T-BILL 3MO + 17.250%)<br>due 07/08/2028 ~ | 1200 | 1175 |
|  Corsair International Ltd. | Corsair International Ltd. | Corsair International Ltd. |
|  5.473% due 01/28/2027 •  | 1000 | 1062 |
|  Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. |
|  13.850% (T-BILL 1MO + 9.250%) due 04/03/2028 ~ | 1000 | 810 |
|  Credit Agricole SA | Credit Agricole SA | Credit Agricole SA |
|  7.875% due 01/23/2024 •(g)(h) | 250 | 249 |
|  Credit Suisse Group AG | Credit Suisse Group AG | Credit Suisse Group AG |
|  6.373% due 07/15/2026 •(k) | 500 | 470 |
|  6.442% due 08/11/2028 •(k) | 700 | 639 |
|  7.250% due 09/12/2025 •(g)(h) | 200 | 144 |
|  7.500% due 07/17/2023 •(g)(h)(k) | 400 | 321 |
|  GSPA Monetization Trust | GSPA Monetization Trust | GSPA Monetization Trust |
|  6.422% due 10/09/2029 | 4384 | 4213 |
|  Hestia Re Ltd. | Hestia Re Ltd. | Hestia Re Ltd. |
|  13.840% (T-BILL 1MO + 9.500%) due 04/22/2025 ~ | 939 | 775 |
|  Lloyds Banking Group PLC | Lloyds Banking Group PLC | Lloyds Banking Group PLC |
|  4.947% due 06/27/2025 •(g)(h) | 716 | 736 |
|  Sanders Re Ltd. | Sanders Re Ltd. | Sanders Re Ltd. |
|  16.090% (T-BILL 3MO + 11.750%) due 04/09/2029 ~ | 1545 | 1467 |
|  Uniti Group LP | Uniti Group LP | Uniti Group LP |
|  4.750% due 04/15/2028 (k) | 2800 | 2244 |
|  6.000% due 01/15/2030 (k) | 8363 | 5303 |
|  6.500% due 02/15/2029 (k) | 3100 | 2060 |
|  VICI Properties LP | VICI Properties LP | VICI Properties LP |
|  3.875% due 02/15/2029 (k) | 6900 | 6057 |
|  Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC |
|  8.500% due 05/09/2026 | 7250 | 5755 |
|  Yosemite Re Ltd. | Yosemite Re Ltd. | Yosemite Re Ltd. |
|  14.087% (T-BILL 3MO + 9.750%) due 06/06/2025 ~ | 840 | 809 |
|  |  | 70222 |
| INDUSTRIALS 27.5% | INDUSTRIALS 27.5% | INDUSTRIALS 27.5% |
|  AA Bond Co. Ltd. | AA Bond Co. Ltd. | AA Bond Co. Ltd. |
|  5.500% due 07/31/2050 | 895 | 939 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Altice Financing SA | Altice Financing SA | Altice Financing SA |
|  5.750% due 08/15/2029 (k) | 972 | 766 |
|  American Airlines Pass-Through Trust | American Airlines Pass-Through Trust | American Airlines Pass-Through Trust |
|  3.375% due 11/01/2028 (k) | 1377 | 1151 |
|  3.700% due 04/01/2028 (k) | 979 | 847 |
|  Arches Buyer, Inc. | Arches Buyer, Inc. | Arches Buyer, Inc. |
|  4.250% due 06/01/2028 (k) | 1000 | 783 |
|  Boeing Co. | Boeing Co. | Boeing Co. |
|  5.930% due 05/01/2060 (k) | 1007 | 923 |
|  6.125% due 02/15/2033 (k) | 1909 | 1946 |
|  CGG SA | CGG SA | CGG SA |
|  7.750% due 04/01/2027 | 1400 | 1229 |
|  8.750% due 04/01/2027 (k) | 7789 | 6239 |
|  Champion Path Holdings Ltd. | Champion Path Holdings Ltd. | Champion Path Holdings Ltd. |
|  4.500% due 01/27/2026 | 1700 | 1484 |
|  4.850% due 01/27/2028 | 1400 | 1181 |
|  Community Health Systems, Inc. | Community Health Systems, Inc. | Community Health Systems, Inc. |
|  8.000% due 03/15/2026 (k) | 11838 | &nbsp;&nbsp;&nbsp;&nbsp;10802 |
|  DISH DBS Corp. | DISH DBS Corp. | DISH DBS Corp. |
|  5.250% due 12/01/2026 (k) | 4800 | 4052 |
|  5.750% due 12/01/2028 (k) | 7850 | 6280 |
|  DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) |
|  7.000% due 12/31/2027 (b) | 2200 | 606 |
|  Dufry One BV | Dufry One BV | Dufry One BV |
|  3.625% due 04/15/2026 | 3691 | 3515 |
|  Exela Intermediate LLC | Exela Intermediate LLC | Exela Intermediate LLC |
|  11.500% due 07/15/2026 | 125 | 22 |
|  Ford Motor Co. | Ford Motor Co. | Ford Motor Co. |
|  7.700% due 05/15/2097 (k) | 13830 | 13114 |
|  General Shopping Investments Ltd. | General Shopping Investments Ltd. | General Shopping Investments Ltd. |
|  15.335% due 03/20/2023 ^(c)(g) | 2500 | 269 |
|  HCA, Inc. | HCA, Inc. | HCA, Inc. |
|  7.500% due 11/15/2095 (k) | 3462 | 3727 |
|  IHO Verwaltungs GmbH (3.875% Cash or 4.625% PIK) | IHO Verwaltungs GmbH (3.875% Cash or 4.625% PIK) | IHO Verwaltungs GmbH (3.875% Cash or 4.625% PIK) |
|  3.875% due 05/15/2027 (b) | 337 | 306 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  6.500% due 03/15/2030 (k) | 16312 | 14624 |
|  Inter Media & Communication SpA | Inter Media & Communication SpA | Inter Media & Communication SpA |
|  6.750% due 02/09/2027 | 3300 | 3358 |
|  Market Bidco Finco PLC | Market Bidco Finco PLC | Market Bidco Finco PLC |
|  4.750% due 11/04/2027 | 900 | 777 |
|  Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. |
|  4.875% due 06/06/2025 (k) | 2000 | 1840 |
|  MGM China Holdings Ltd. | MGM China Holdings Ltd. | MGM China Holdings Ltd. |
|  5.250% due 06/18/2025 (k) | 1800 | 1696 |
|  New Albertsons LP | New Albertsons LP | New Albertsons LP |
|  6.570% due 02/23/2028 | 4021 | 4135 |
|  Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. |
|  4.810% due 09/17/2030 (k) | 8700 | 7403 |
|  Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) |
|  11.000% due 02/15/2028 (b) | 60 | 67 |
|  Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. |
|  0.000% due 01/30/2023 (f)(g) | 3371 | 8 |
|  Petroleos Mexicanos | Petroleos Mexicanos | Petroleos Mexicanos |
|  6.750% due 09/21/2047 (k) | 1098 | 703 |
|  Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. |
|  7.250% due 11/01/2025 (k) | 5000 | 4233 |
|  QVC, Inc. | QVC, Inc. | QVC, Inc. |
|  5.950% due 03/15/2043 (k) | 1169 | 580 |
|  Sands China Ltd. | Sands China Ltd. | Sands China Ltd. |
|  5.900% due 08/08/2028 (k) | 3379 | 3168 |
|  Topaz Solar Farms LLC | Topaz Solar Farms LLC | Topaz Solar Farms LLC |
|  4.875% due 09/30/2039 | 2208 | 1965 |
|  5.750% due 09/30/2039 (k) | 7167 | 6813 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  10.625% due 07/15/2027 (k) | 1934 | 425 |
|  United Group BV | United Group BV | United Group BV |
|  4.875% due 07/01/2024 | 100 | 100 |
|  Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) |
|  8.250% due 04/30/2028 (b)(k) | 1428 | 1438 |
|  Vale SA | Vale SA | Vale SA |
|  3.202% due 12/29/2049 ~(g) | 120000 | 8480 |

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---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **51** |

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------

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| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO High Income Fund | (Cont.) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  7.500% due 09/01/2025 (k) | 3960 | 2736 |
|  Viking Cruises Ltd. | Viking Cruises Ltd. | Viking Cruises Ltd. |
|  13.000% due 05/15/2025 (k) | 8659 | 9149 |
|  Wesco Aircraft Holdings, Inc. | Wesco Aircraft Holdings, Inc. | Wesco Aircraft Holdings, Inc. |
|  9.000% due 11/15/2026 | 1424 | 965 |
|  10.500% due 11/15/2026 | 662 | 611 |
|  Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) |
|  10.500% due 11/15/2026 (b)(k) | 27010 | 24917 |
|  Windstream Escrow LLC | Windstream Escrow LLC | Windstream Escrow LLC |
|  7.750% due 08/15/2028 (k) | 9423 | 7700 |
|  Wynn Macau Ltd. | Wynn Macau Ltd. | Wynn Macau Ltd. |
|  5.125% due 12/15/2029 (k) | 400 | 324 |
|  5.500% due 01/15/2026 (k) | 1226 | 1127 |
|  5.500% due 10/01/2027 (k) | 3800 | 3328 |
|  5.625% due 08/26/2028 (k) | 5773 | 4943 |
|  |  | 177794 |
| UTILITIES 6.8% | UTILITIES 6.8% | UTILITIES 6.8% |
|  Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. |
|  6.750% due 08/06/2023 | 1000 | 965 |
|  Mountain States Telephone & Telegraph Co. | Mountain States Telephone & Telegraph Co. | Mountain States Telephone & Telegraph Co. |
|  7.375% due 05/01/2030 | 5130 | 4991 |
|  NGD Holdings BV | NGD Holdings BV | NGD Holdings BV |
|  6.750% due 12/31/2026 | 846 | 394 |
|  Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) |
|  7.350% due 12/01/2026 ^(b) | 3307 | 1826 |
|  Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) |
|  7.720% due 12/01/2026 ^(b) | 16575 | 4434 |
|  Oi SA | Oi SA | Oi SA |
|  10.000% due 07/27/2025 | 20600 | 3560 |
|  Pacific Gas & Electric Co. | Pacific Gas & Electric Co. | Pacific Gas & Electric Co. |
|  4.000% due 12/01/2046 (k) | 600 | 404 |
|  4.200% due 03/01/2029 (k) | 2000 | 1790 |
|  4.250% due 03/15/2046 (k) | 2300 | 1609 |
|  4.450% due 04/15/2042 (k) | 1203 | 900 |
|  4.600% due 06/15/2043 | 200 | 152 |
|  4.750% due 02/15/2044 (k) | 7809 | 6004 |
|  4.950% due 07/01/2050 (k) | 1054 | 821 |
|  5.450% due 06/15/2027 (k) | 1400 | 1383 |
|  Peru LNG SRL | Peru LNG SRL | Peru LNG SRL |
|  5.375% due 03/22/2030 | 8700 | 7279 |
|  Rio Oil Finance Trust | Rio Oil Finance Trust | Rio Oil Finance Trust |
|  9.250% due 07/06/2024 (k) | 7285 | 7395 |
|  |  | 43907 |
|  Total Corporate Bonds & Notes<br>(Cost $347,957) | Total Corporate Bonds & Notes<br>(Cost $347,957) | &nbsp;&nbsp;&nbsp;&nbsp;291923 |
| CONVERTIBLE BONDS & NOTES 0.5% | CONVERTIBLE BONDS & NOTES 0.5% | CONVERTIBLE BONDS & NOTES 0.5% |
| INDUSTRIALS 0.5% | INDUSTRIALS 0.5% | INDUSTRIALS 0.5% |
|  DISH Network Corp. | DISH Network Corp. | DISH Network Corp. |
|  3.375% due 08/15/2026 | 5100 | 3208 |
|  Total Convertible Bonds & Notes<br>(Cost $5,100) | Total Convertible Bonds & Notes<br>(Cost $5,100) | 3208 |
| MUNICIPAL BONDS & NOTES 5.8% | MUNICIPAL BONDS & NOTES 5.8% | MUNICIPAL BONDS & NOTES 5.8% |
| DISTRICT OF COLUMBIA 1.7% | DISTRICT OF COLUMBIA 1.7% | DISTRICT OF COLUMBIA 1.7% |
|  District of Columbia Revenue Bonds, Series 2011 | District of Columbia Revenue Bonds, Series 2011 | District of Columbia Revenue Bonds, Series 2011 |
|  7.625% due 10/01/2035 | 9740 | 10803 |
| ILLINOIS 2.0% | ILLINOIS 2.0% | ILLINOIS 2.0% |
|  Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 |
|  6.257% due 01/01/2040 | 11000 | 10316 |
|  7.517% due 01/01/2040 | 2805 | 2961 |
|  |  | 13277 |

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---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT<br>(000S) | MARKET<br>VALUE<br>(000S) |
| PUERTO RICO 0.1% | PUERTO RICO 0.1% | PUERTO RICO 0.1% |
|  Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 |
|  0.000% due 11/01/2043 (f) | 1631 | 716 |
| TEXAS 1.2% | TEXAS 1.2% | TEXAS 1.2% |
|  El Paso Downtown Development Corp., Texas Revenue Bonds, Series 2013 | El Paso Downtown Development Corp., Texas Revenue Bonds, Series 2013 | El Paso Downtown Development Corp., Texas Revenue Bonds, Series 2013 |
|  7.250% due 08/15/2043 | 7425 | 8086 |
| WEST VIRGINIA 0.8% | WEST VIRGINIA 0.8% | WEST VIRGINIA 0.8% |
|  Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 |
|  0.000% due 06/01/2047 (f) | 66200 | 4929 |
|  Total Municipal Bonds & Notes (Cost $38,567) | Total Municipal Bonds & Notes (Cost $38,567) | 37811 |
| U.S. GOVERNMENT AGENCIES 2.3% | U.S. GOVERNMENT AGENCIES 2.3% | U.S. GOVERNMENT AGENCIES 2.3% |
|  Fannie Mae | Fannie Mae | Fannie Mae |
|  1.711% due 07/25/2050 ~(a)(k) | 3449 | 344 |
|  3.500% due 09/25/2027 (a) | 87 | 5 |
|  4.000% due 06/25/2050 (a)(k) | 2179 | 408 |
|  5.000% due 06/25/2050 (a)(k) | 3522 | 755 |
|  10.000% due 01/25/2034 ~ | 162 | 172 |
|  Freddie Mac | Freddie Mac | Freddie Mac |
|  1.711% due 06/25/2050 •(a)(k) | 3788 | 396 |
|  1.782% due 07/15/2035 •(a) | 472 | 31 |
|  1.882% due 02/15/2042 ~(a) | 739 | 41 |
|  2.822% due 08/15/2036 •(a) | 280 | 34 |
|  4.364% due 05/15/2033 •  | 23 | 21 |
|  5.000% due 06/15/2033 ~(a) | 584 | 84 |
|  5.992% due 11/25/2055 «~ | 13287 | 8167 |
|  13.589% due 10/25/2027 ~ | 4296 | 4383 |
|  Ginnie Mae | Ginnie Mae | Ginnie Mae |
|  3.500% due 06/20/2042 (a)(k) | 39 | 7 |
|  3.500% due 03/20/2043 (a) | 519 | 109 |
|  4.500% due 07/20/2042 (a) | 88 | 11 |
|  5.000% due 09/20/2042 (a) | 162 | 25 |
|  Uniform Mortgage-Backed Security, TBA | Uniform Mortgage-Backed Security, TBA | Uniform Mortgage-Backed Security, TBA |
|  3.000% due 02/01/2053 | 100 | 88 |
|  Total U.S. Government Agencies<br>(Cost $17,326) | Total U.S. Government Agencies<br>(Cost $17,326) | &nbsp;&nbsp;&nbsp;&nbsp;15081 |
| NON-AGENCY MORTGAGE-BACKED SECURITIES 9.1% | NON-AGENCY MORTGAGE-BACKED SECURITIES 9.1% | NON-AGENCY MORTGAGE-BACKED SECURITIES 9.1% |
|  Adjustable Rate Mortgage Trust | Adjustable Rate Mortgage Trust | Adjustable Rate Mortgage Trust |
|  4.729% due 05/25/2036 •  | 3135 | 1203 |
|  Banc of America Alternative Loan Trust | Banc of America Alternative Loan Trust | Banc of America Alternative Loan Trust |
|  1.211% due 06/25/2046 ^•(a) | 2627 | 136 |
|  2.251% due 06/25/2037 ^•(a) | 2186 | 196 |
|  4.749% due 06/25/2037 ~ | 2013 | 1499 |
|  Banc of America Funding Trust | Banc of America Funding Trust | Banc of America Funding Trust |
|  6.000% due 07/25/2037 ^ | 281 | 220 |
|  6.250% due 10/26/2036 | 4060 | 1968 |
|  Banc of America Mortgage Trust | Banc of America Mortgage Trust | Banc of America Mortgage Trust |
|  2.843% due 02/25/2036 ^~ | 6 | 5 |
|  BCAP LLC Trust | BCAP LLC Trust | BCAP LLC Trust |
|  4.611% due 03/26/2037 þ | 1215 | 1648 |
|  6.000% due 05/26/2037 ~ | 4233 | 1895 |
|  Bear Stearns Adjustable Rate Mortgage Trust | Bear Stearns Adjustable Rate Mortgage Trust | Bear Stearns Adjustable Rate Mortgage Trust |
|  3.728% due 11/25/2034 ~ | 7 | 7 |
|  CD Mortgage Trust | CD Mortgage Trust | CD Mortgage Trust |
|  5.688% due 10/15/2048 | 138 | 122 |
|  Chase Mortgage Finance Trust | Chase Mortgage Finance Trust | Chase Mortgage Finance Trust |
|  3.707% due 09/25/2036 ^~ | 42 | 34 |
|  3.946% due 12/25/2035 ^~ | 8 | 7 |
|  5.500% due 05/25/2036 ^ | 1 | 1 |
|  Citigroup Commercial Mortgage Trust | Citigroup Commercial Mortgage Trust | Citigroup Commercial Mortgage Trust |
|  5.447% due 12/10/2049 ~ | 2847 | 1405 |
|  Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust |
|  3.595% due 07/25/2037 ^~ | 37 | 32 |
|  3.762% due 11/25/2035 ~ | 9923 | 5730 |
|  6.500% due 09/25/2036 | 2368 | 1401 |
|  Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust |
|  6.480% due 12/10/2049 ~ | 2620 | 420 |

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---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust |
|  0.611% due 04/25/2035 •(a) | 2054 | 53 |
|  3.435% due 02/25/2037 ^~ | 96 | 81 |
|  4.889% due 12/25/2046 •  | 1705 | 1375 |
|  6.000% due 02/25/2037 ^ | 4106 | 1684 |
|  6.250% due 12/25/2036 ^•  | 2140 | 989 |
|  6.500% due 06/25/2036 ^ | 609 | 306 |
|  Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust |
|  0.961% due 12/25/2036 •(a) | 1661 | 75 |
|  3.501% due 09/20/2036 ^~ | 236 | 204 |
|  3.632% due 09/25/2047 ^~ | 17 | 15 |
|  Credit Suisse First Boston Mortgage Securities Corp. | Credit Suisse First Boston Mortgage Securities Corp. | Credit Suisse First Boston Mortgage Securities Corp. |
|  6.000% due 01/25/2036 ^ | 1263 | 781 |
|  Eurosail PLC | Eurosail PLC | Eurosail PLC |
|  4.861% due 06/13/2045 ~ | 3347 | 2882 |
|  7.511% due 06/13/2045 ~ | 988 | 981 |
|  GS Mortgage Securities Corp. | GS Mortgage Securities Corp. | GS Mortgage Securities Corp. |
|  7.736% due 08/15/2039 ~ | 1200 | 1211 |
|  HarborView Mortgage Loan Trust | HarborView Mortgage Loan Trust | HarborView Mortgage Loan Trust |
|  3.321% due 08/19/2036 ^~ | 3 | 3 |
|  3.508% due 08/19/2036 ^~ | 151 | 130 |
|  IM Pastor Fondo de Titluzacion Hipotecaria | IM Pastor Fondo de Titluzacion Hipotecaria | IM Pastor Fondo de Titluzacion Hipotecaria |
|  2.221% due 03/22/2043 •  | 2804 | 2551 |
|  Jackson Park Trust | Jackson Park Trust | Jackson Park Trust |
|  3.242% due 10/14/2039 ~ | 2311 | 1671 |
|  JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust |
|  3.699% due 03/25/2037 ^~ | 2806 | 2488 |
|  JP Morgan Mortgage Trust | JP Morgan Mortgage Trust | JP Morgan Mortgage Trust |
|  2.231% due 01/25/2037 ^•(a) | 13185 | 2375 |
|  3.196% due 07/27/2037 ~ | 3934 | 2783 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  4.829% due 06/25/2047 •  | 1454 | 1297 |
|  Nomura Asset Acceptance Corp. Alternative Loan Trust | Nomura Asset Acceptance Corp. Alternative Loan Trust | Nomura Asset Acceptance Corp. Alternative Loan Trust |
|  3.544% due 04/25/2036 ^~ | 2770 | 2353 |
|  Nomura Resecuritization Trust | Nomura Resecuritization Trust | Nomura Resecuritization Trust |
|  3.808% due 07/26/2035 ~ | 4371 | 3740 |
|  Residential Asset Securitization Trust | Residential Asset Securitization Trust | Residential Asset Securitization Trust |
|  4.789% due 01/25/2046 ^~ | 168 | 53 |
|  6.250% due 09/25/2037 ^ | 4522 | 1822 |
|  6.500% due 08/25/2036 ^ | 795 | 268 |
|  Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust |
|  3.490% due 04/25/2047 ~ | 290 | 149 |
|  3.694% due 01/25/2036 ^~ | 100 | 63 |
|  Structured Asset Mortgage Investments Trust | Structured Asset Mortgage Investments Trust | Structured Asset Mortgage Investments Trust |
|  4.769% due 07/25/2046 ^~ | 5417 | 4049 |
|  WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust |
|  3.347% due 05/25/2037 ^~ | 70 | 55 |
|  Washington Mutual Mortgage Pass-Through Certificates Trust | Washington Mutual Mortgage Pass-Through Certificates Trust | Washington Mutual Mortgage Pass-Through Certificates Trust |
|  2.291% due 04/25/2037 ~(a) | 7428 | 1226 |
|  6.500% due 03/25/2036 ^ | 4228 | 2898 |
|  Total Non-Agency Mortgage-Backed Securities (Cost $69,887) | Total Non-Agency Mortgage-Backed Securities (Cost $69,887) | &nbsp;&nbsp;&nbsp;&nbsp;58540 |
| ASSET-BACKED SECURITIES 8.3% | ASSET-BACKED SECURITIES 8.3% | ASSET-BACKED SECURITIES 8.3% |
|  ACE Securities Corp. Home Equity Loan Trust | ACE Securities Corp. Home Equity Loan Trust | ACE Securities Corp. Home Equity Loan Trust |
|  4.669% due 07/25/2036 •  | 1699 | 1353 |
|  Apidos CLO | Apidos CLO | Apidos CLO |
|  0.000% due 07/22/2026 ~ | 3000 | 1 |
|  Avoca CLO DAC | Avoca CLO DAC | Avoca CLO DAC |
|  0.000% due 04/15/2034 ~ | 2150 | 1041 |
|  Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. |
|  3.998% due 07/05/2046 ~ | 185947 | 1373 |
|  Carlyle Global Market Strategies Euro CLO DAC | Carlyle Global Market Strategies Euro CLO DAC | Carlyle Global Market Strategies Euro CLO DAC |
|  0.000% due 04/15/2027 ~ | 800 | 254 |
|  0.000% due 01/25/2032 ~ | 2200 | 741 |
|  Carlyle U.S. CLO Ltd. | Carlyle U.S. CLO Ltd. | Carlyle U.S. CLO Ltd. |
|  0.000% due 10/15/2031 ~ | 4200 | 1909 |
|  CIFC Funding Ltd. | CIFC Funding Ltd. | CIFC Funding Ltd. |
|  0.000% due 04/24/2030 ~ | 4000 | 919 |
|  0.000% due 10/22/2031 ~ | 3000 | 630 |
|  Cork Street CLO Designated Activity Co. | Cork Street CLO Designated Activity Co. | Cork Street CLO Designated Activity Co. |
|  0.000% due 11/27/2028 ~ | 800 | 251 |

---

---

| | | |
|:---|:---|:---|
| **52** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Countrywide Asset-Backed Certificates Trust | Countrywide Asset-Backed Certificates Trust | Countrywide Asset-Backed Certificates Trust |
|  4.659% due 09/25/2046 ~ | 12389 | 10078 |
|  CVC Cordatus Loan Fund DAC | CVC Cordatus Loan Fund DAC | CVC Cordatus Loan Fund DAC |
|  0.000% due 04/15/2032 ~ | 2500 | 619 |
|  Duke Funding Ltd. | Duke Funding Ltd. | Duke Funding Ltd. |
|  5.172% due 08/07/2033 •  | 13845 | 2275 |
|  Glacier Funding CDO Ltd. | Glacier Funding CDO Ltd. | Glacier Funding CDO Ltd. |
|  4.778% due 08/04/2035 ~ | 6310 | 819 |
|  Grosvenor Place CLO BV | Grosvenor Place CLO BV | Grosvenor Place CLO BV |
|  0.000% due 04/30/2029 ~ | 1000 | 188 |
|  Jay Park CLO Ltd. | Jay Park CLO Ltd. | Jay Park CLO Ltd. |
|  0.000% due 10/20/2027 ~ | 7503 | 1351 |
|  Long Beach Mortgage Loan Trust | Long Beach Mortgage Loan Trust | Long Beach Mortgage Loan Trust |
|  4.769% due 02/25/2036 ~ | 999 | 819 |
|  Man GLG Euro CLO DAC | Man GLG Euro CLO DAC | Man GLG Euro CLO DAC |
|  0.000% due 10/15/2030 ~ | 4150 | 1289 |
|  Marlette Funding Trust | Marlette Funding Trust | Marlette Funding Trust |
|  0.000% due 12/15/2028 «(f) | 24 | 1778 |
|  0.000% due 04/16/2029 «(f) | 7 | 400 |
|  0.000% due 07/16/2029 «(f) | 10 | 740 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  4.336% due 04/25/2037 ~ | 627 | 314 |
|  Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust |
|  6.459% due 11/25/2036 ^~ | 692 | 267 |
|  6.465% due 09/25/2046 ^þ | 5754 | 2205 |
|  People's Financial Realty Mortgage Securities Trust | People's Financial Realty Mortgage Securities Trust | People's Financial Realty Mortgage Securities Trust |
|  4.549% due 09/25/2036 •  | 19933 | 3996 |
|  Renaissance Home Equity Loan Trust | Renaissance Home Equity Loan Trust | Renaissance Home Equity Loan Trust |
|  6.998% due 09/25/2037 ^þ | 6563 | 3081 |
|  7.238% due 09/25/2037 ^þ | 5678 | 2665 |
|  Segovia European CLO DAC | Segovia European CLO DAC | Segovia European CLO DAC |
|  0.000% due 04/15/2035 ~ | 1100 | 449 |
|  Sherwood Funding CDO Ltd. | Sherwood Funding CDO Ltd. | Sherwood Funding CDO Ltd. |
|  4.545% due 11/06/2039 ~ | 31208 | 7510 |
|  SLM Student Loan Trust | SLM Student Loan Trust | SLM Student Loan Trust |
|  0.000% due 01/25/2042 «(f) | 2 | 545 |
|  SMB Private Education Loan Trust | SMB Private Education Loan Trust | SMB Private Education Loan Trust |
|  0.000% due 10/15/2048 «(f) | 5 | 1460 |
|  South Coast Funding Ltd. | South Coast Funding Ltd. | South Coast Funding Ltd. |
|  5.192% due 08/10/2038 •  | 24720 | 1942 |
|  Specialty Underwriting & Residential Finance Trust | Specialty Underwriting & Residential Finance Trust | Specialty Underwriting & Residential Finance Trust |
|  5.364% due 06/25/2036 ~ | 409 | 316 |
|  Washington Mutual Asset-Backed Certificates Trust | Washington Mutual Asset-Backed Certificates Trust | Washington Mutual Asset-Backed Certificates Trust |
|  4.689% due 05/25/2036 •  | 154 | 118 |
|  Total Asset-Backed Securities (Cost $124,365) | Total Asset-Backed Securities (Cost $124,365) | &nbsp;&nbsp;&nbsp;&nbsp;53696 |
| SOVEREIGN ISSUES 1.5% | SOVEREIGN ISSUES 1.5% | SOVEREIGN ISSUES 1.5% |
|  Argentina Government International Bond | Argentina Government International Bond | Argentina Government International Bond |
|  0.500% due 07/09/2030 þ | 9019 | 2086 |
|  1.000% due 07/09/2029 | 163 | 44 |
|  1.500% due 07/09/2035 þ | 8535 | 1933 |
|  1.500% due 07/09/2046 þ | 115 | 30 |
|  3.500% due 07/09/2041 þ(k) | 9486 | 2720 |
|  3.875% due 01/09/2038 þ(k) | 1326 | 422 |
|  15.500% due 10/17/2026 | 38100 | 29 |
|  Autonomous City of Buenos Aires | Autonomous City of Buenos Aires | Autonomous City of Buenos Aires |
|  72.479% (BADLARPP + 3.250%) due 03/29/2024 ~ | 47730 | 149 |
|  72.986% (BADLARPP + 3.750%) due 02/22/2028 ~ | 34626 | 99 |
|  Ghana Government International Bond | Ghana Government International Bond | Ghana Government International Bond |
|  6.375% due 02/11/2027 ^(c) | 600 | 233 |
|  7.875% due 02/11/2035 ^(c) | 600 | 218 |
|  8.750% due 03/11/2061 ^(c) | 200 | 71 |
|  Provincia de Buenos Aires | Provincia de Buenos Aires | Provincia de Buenos Aires |
|  72.913% due 04/12/2025 | &nbsp;&nbsp;&nbsp;&nbsp;270895 | 747 |
|  Republic of Greece Government International Bond | Republic of Greece Government International Bond | Republic of Greece Government International Bond |
|  2.000% due 04/22/2027 | 55 | 55 |
|  3.900% due 01/30/2033 | 122 | 125 |
|  4.000% due 01/30/2037 | 96 | 96 |
|  4.200% due 01/30/2042 | 119 | 128 |
|  Ukraine Government International Bond | Ukraine Government International Bond | Ukraine Government International Bond |
|  4.375% due 01/27/2032 ^(c) | 1471 | 293 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Venezuela Government International Bond | Venezuela Government International Bond | Venezuela Government International Bond |
|  8.250% due 10/13/2024 ^(c) | 34 | 3 |
|  9.250% due 09/15/2027 ^(c) | 452 | 43 |
|  Total Sovereign Issues (Cost $24,022) | Total Sovereign Issues (Cost $24,022) | 9524 |
|  | **SHARES** |  |
| COMMON STOCKS 4.9% | COMMON STOCKS 4.9% | COMMON STOCKS 4.9% |
| COMMUNICATION SERVICES 0.4% | COMMUNICATION SERVICES 0.4% | COMMUNICATION SERVICES 0.4% |
|  Clear Channel Outdoor Holdings, Inc. (d) | 754306 | 792 |
|  iHeartMedia, Inc. 'A' (d) | 178528 | 1095 |
|  iHeartMedia, Inc. 'B' «(d) | 138545 | 764 |
|  |  | 2651 |
| CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% |
|  Promotora de Informaciones SA | 282619 | 85 |
| ENERGY 0.5% | ENERGY 0.5% | ENERGY 0.5% |
|  Axis Energy Services 'A' «(d)(i) | 6207 | 216 |
|  Noble Corp. PLC (d) | 71622 | 2701 |
|  |  | 2917 |
| FINANCIALS 1.1% | FINANCIALS 1.1% | FINANCIALS 1.1% |
|  Banca Monte dei Paschi di Siena SpA (d) | 886500 | 1826 |
|  Intelsat SA «(d)(i) | 221868 | 5325 |
|  |  | 7151 |
| INDUSTRIALS 2.9% | INDUSTRIALS 2.9% | INDUSTRIALS 2.9% |
|  Neiman Marcus Group Ltd. LLC «(d)(i) | 90604 | 15951 |
|  Syniverse Holdings, Inc. «(i) | 2333246 | 2243 |
|  Voyager Aviation Holdings LLC «(d) | 1009 | 0 |
|  Westmoreland Mining Holdings «(d)(i) | 88291 | 662 |
|  |  | 18856 |
|  Total Common Stocks (Cost $37,165) | Total Common Stocks (Cost $37,165) | &nbsp;&nbsp;&nbsp;&nbsp;31660 |
| RIGHTS 0.0% | RIGHTS 0.0% | RIGHTS 0.0% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Jackson Holdings SA «(d) | 23289 | 157 |
|  Total Rights (Cost $0) | Total Rights (Cost $0) | 157 |
| WARRANTS 1.7% | WARRANTS 1.7% | WARRANTS 1.7% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Emergence SA - Exp. 02/17/2027 « | 250 | 1 |
|  Intelsat Jackson Holdings SA-Exp. 12/05/2025 « | 23229 | 174 |
|  |  | 175 |
| INFORMATION TECHNOLOGY 1.7% | INFORMATION TECHNOLOGY 1.7% | INFORMATION TECHNOLOGY 1.7% |
|  Windstream Holdings LLC - Exp. 9/21/2055 « | 537548 | 10882 |
|  Total Warrants (Cost $13,446) | Total Warrants (Cost $13,446) | 11057 |
| PREFERRED SECURITIES 5.6% | PREFERRED SECURITIES 5.6% | PREFERRED SECURITIES 5.6% |
| BANKING & FINANCE 5.4% | BANKING & FINANCE 5.4% | BANKING & FINANCE 5.4% |
|  AGFC Capital Trust | AGFC Capital Trust | AGFC Capital Trust |
|  5.829% (US0003M + 1.750%) due 01/15/2067 ~(k) | 27410000 | 15372 |

---

---

| | | |
|:---|:---|:---|
|  | **SHARES** | **MARKET<br>VALUE<br>(000S)** |
|  Brighthouse Holdings LLC | Brighthouse Holdings LLC | Brighthouse Holdings LLC |
|  6.500% due 07/27/2037 þ(g) | 70000 | 63 |
|  Compeer Financial ACA | Compeer Financial ACA | Compeer Financial ACA |
|  4.875% due 08/15/2026 •(g) | 2100000 | 2088 |
|  OCP CLO Ltd. | OCP CLO Ltd. | OCP CLO Ltd. |
|  0.000% due 04/26/2028 (f) | 8700 | 3957 |
|  Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten |
|  6.500% due 12/29/2049 þ(g) | 12890000 | 13269 |
|  |  | 34749 |
| INDUSTRIALS 0.2% | INDUSTRIALS 0.2% | INDUSTRIALS 0.2% |
|  Voyager Aviation Holdings LLC « | 6055 | 1625 |
|  Total Preferred Securities (Cost $40,285) | Total Preferred Securities (Cost $40,285) | 36374 |
| REAL ESTATE INVESTMENT TRUSTS 0.8% | REAL ESTATE INVESTMENT TRUSTS 0.8% | REAL ESTATE INVESTMENT TRUSTS 0.8% |
| REAL ESTATE 0.8% | REAL ESTATE 0.8% | REAL ESTATE 0.8% |
|  CBL & Associates Properties, Inc. | 14084 | 325 |
|  Uniti Group, Inc. | 261443 | 1446 |
|  VICI Properties, Inc. | 95221 | 3085 |
|  Total Real Estate Investment Trusts (Cost $1,770) | Total Real Estate Investment Trusts (Cost $1,770) | 4856 |
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** |  |
| SHORT-TERM INSTRUMENTS 16.0% | SHORT-TERM INSTRUMENTS 16.0% | SHORT-TERM INSTRUMENTS 16.0% |
| REPURCHASE AGREEMENTS (j) 15.3% | REPURCHASE AGREEMENTS (j) 15.3% | REPURCHASE AGREEMENTS (j) 15.3% |
|  |  | 98910 |
| U.S. TREASURY BILLS 0.7% | U.S. TREASURY BILLS 0.7% | U.S. TREASURY BILLS 0.7% |
|  3.779% due 01/05/2023 - 03/02/2023 (e)(f)(n) | 4442 | 4432 |
| Total Short-Term Instruments (Cost $103,343) | Total Short-Term Instruments (Cost $103,343) | 103342 |
| Total Investments in Securities (Cost $1,046,627) | Total Investments in Securities (Cost $1,046,627) | 846141 |
| Total Investments 130.8% (Cost $1,046,627) | Total Investments 130.8% (Cost $1,046,627) | 846141 |
|  Financial Derivative<br>Instruments (l)(m) (0.2)%<br>(Cost or Premiums, net $54,492) | Financial Derivative<br>Instruments (l)(m) (0.2)%<br>(Cost or Premiums, net $54,492) | (1199) |
| Auction-Rate Preferred Shares (9.0)% | Auction-Rate Preferred Shares (9.0)% | (58050) |
| Other Assets and Liabilities, net (21.6)% | Other Assets and Liabilities, net (21.6)% | (139821) |
| Net Assets Applicable to Common Shareholders 100.0% | Net Assets Applicable to Common Shareholders 100.0% | 647071 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **53** |

---

------

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| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO High Income Fund | (Cont.) |

---

#### NOTES TO SCHEDULE OF INVESTMENTS:&nbsp;&nbsp;&nbsp;&nbsp;
\* A zero balance may reflect actual amounts rounding to less than one thousand. 

---

| | |
|:---|:---|
| ^ | Security is in default.  |

---

---

| | |
|:---|:---|
| « | Security valued using significant unobservable inputs (Level 3).  |

---

---

| | |
|:---|:---|
| µ | All or a portion of this amount represents unfunded loan commitments. The interest rate for the unfunded portion will be determined at the time of funding. See Note 4, Securities and Other Investments, in the Notes to Financial Statements for more information regarding unfunded loan commitments.  |

---

---

| | |
|:---|:---|
| ~ | Variable or Floating rate security. Rate shown is the rate in effect as of period end. Certain variable rate securities are not based on a published reference rate and spread, rather are determined by the issuer or agent and are based on current market conditions. Reference rate is as of reset date, which may vary by security. These securities may not indicate a reference rate and/or spread in their description.  |

---

• Rate shown is the rate in effect as of period end. The rate may be based on a fixed rate, a capped rate or a floor rate and may convert to a variable or floating rate in the future. These securities do not indicate a reference rate and spread in their description. 

---

| | |
|:---|:---|
| þ | Coupon represents a rate which changes periodically based on a predetermined schedule or event. Rate shown is the rate in effect as of period end.  |

---

(a) Security is an Interest Only ("IO") or IO Strip. 

(b) Payment in-kind security. 

(c) Security is not accruing income as of the date of this report. 

(d) Security did not produce income within the last twelve months. 

(e) Coupon represents a weighted average yield to maturity. 

(f) Zero coupon security. 

(g) Perpetual maturity; date shown, if applicable, represents next contractual call date. 

(h) Contingent convertible security. 

&nbsp;&nbsp;&nbsp;&nbsp;(i) RESTRICTED SECURITIES:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Issuer Description | Acquisition<br>Date | Cost | Market<br>Value | **Market Value<br>as Percentage<br>of Net Assets**<br> **Applicable<br>to Common**<br> **Shareholders** |
|  Axis Energy Services 'A' | 07/01/2021 | $91 | $216 | 0.03% |
|  Intelsat SA | 06/19/2017 - 02/23/2022 | 15920 | 5325 | 0.82 |
|  Neiman Marcus Group Ltd. LLC | 09/25/2020 | 2918 | 15951 | 2.47 |
|  Syniverse Holdings, Inc. | 05/12/2022 - 11/30/2022 | 2289 | 2243 | 0.35 |
|  Westmoreland Mining Holdings | 07/11/2016 - 10/19/2016 | 2160 | 662 | 0.10 |
|  |  | $&nbsp;&nbsp;&nbsp;&nbsp;23378 | $&nbsp;&nbsp;&nbsp;&nbsp;24397 | 3.77% |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS
&nbsp;&nbsp;&nbsp;&nbsp;(j) REPURCHASE AGREEMENTS:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Lending<br>Rate | Settlement<br>Date | Maturity<br>Date | Principal<br>Amount | Collateralized By | Collateral<br>(Received) | Repurchase<br>Agreements,<br>at Value | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> |
| FICC | 1.900% | 12/30/2022 | 01/03/2023 | $910 | U.S. Treasury Bills 0.000% due 06/08/2023 | $(928) | $910 | $910 |
|  | 4.280 | 12/30/2022 | 01/03/2023 | &nbsp;&nbsp;&nbsp;&nbsp;98000 | U.S. Treasury Inflation Protected Securities 0.250% due 07/15/2029 | (9644) | 98000 | 98047 |
|  |  |  |  |  | U.S. Treasury Notes 2.625% due 07/31/2029 | (90316) |  |  |
|  Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(100888) | $&nbsp;&nbsp;&nbsp;&nbsp;98910 | $&nbsp;&nbsp;&nbsp;&nbsp;98957 |

---

#### REVERSE REPURCHASE AGREEMENTS:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | **Borrowing**<br> **Rate<sup>(2)</sup>** | **Settlement**<br> **Date** | **Maturity**<br> **Date** | **Amount<br>Borrowed<sup>(2)</sup>** | **Amount<br>Borrowed<sup>(2)</sup>** | Payable for<br>Reverse<br>Repurchase<br>Agreements |
|  BOS | 3.760% | 11/17/2022 | 01/10/2023 | $— | (2619) | $(2632) |
|  | 3.760 | 11/25/2022 | 01/10/2023 |  | (3489) | (3503) |
|  BPS | 0.000 | 11/15/2022 | 02/13/2023 |  | (803) | (803) |
|  | 2.330 | 11/22/2022 | 02/22/2023 | EUR | (2992) | (3212) |
|  | 3.550 | 08/02/2022 | 02/02/2023 | $— | (6207) | (6301) |
|  | 3.550 | 09/02/2022 | 02/02/2023 |  | (764) | (774) |
|  | 3.550 | 12/14/2022 | 02/02/2023 |  | &nbsp;&nbsp;&nbsp;&nbsp;(1321) | &nbsp;&nbsp;&nbsp;&nbsp;(1324) |
|  | 3.760 | 08/31/2022 | 02/13/2023 |  | (2295) | (2325) |
|  | 3.760 | 10/07/2022 | 02/13/2023 |  | (254) | (256) |

---

---

| | | |
|:---|:---|:---|
| **54** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Borrowing**<br> **Rate<sup>(2)</sup>** | **Settlement**<br> **Date** | **Maturity**<br> **Date** | **Amount<br>Borrowed<sup>(2)</sup>** | **Payable for<br>Reverse<br>Repurchase<br>Agreements** |
|  | 3.760% | 11/09/2022 | 02/13/2023 | (4173) | $(4197) |
|  | 3.760 | 11/15/2022 | 02/13/2023 | (1840) | (1850) |
|  | 3.935 | 09/01/2022 | 03/01/2023 | (912) | (924) |
|  | 4.220 | 11/14/2022 | 03/14/2023 | (1046) | (1052) |
|  | 4.600 | 09/22/2022 | 03/23/2023 | (3397) | (3442) |
|  | 4.600 | 10/26/2022 | 01/19/2023 | (4019) | (4055) |
|  | 4.620 | 09/23/2022 | 03/23/2023 | (1821) | (1845) |
|  | 4.620 | 10/05/2022 | 03/23/2023 | (1567) | (1585) |
|  | 4.720 | 10/26/2022 | 01/30/2023 | (1938) | (1955) |
|  | 4.720 | 10/27/2022 | 01/30/2023 | (3366) | (3396) |
|  | 4.720 | 10/28/2022 | 01/31/2023 | (518) | (522) |
|  BRC | 7.000 | 12/21/2022 | TBD<sup>(3)</sup> | (1441) | (1543) |
|  BYR | 4.950 | 09/26/2022 | 03/24/2023 | $(6912) | (6967) |
|  | 4.950 | 11/23/2022 | 03/24/2023 | (1253) | (1259) |
|  | 4.950 | 12/01/2022 | 03/24/2023 | (507) | (509) |
|  | 4.960 | 10/11/2022 | 04/11/2023 | (1822) | (1837) |
|  | 4.960 | 10/17/2022 | 03/17/2023 | (14) | (14) |
|  CDC | 3.270 | 08/04/2022 | 01/09/2023 | (2137) | (2166) |
|  | 3.270 | 09/26/2022 | 01/09/2023 | (3052) | (3079) |
|  | 3.270 | 12/14/2022 | 01/09/2023 | (1144) | (1146) |
|  | 3.990 | 10/27/2022 | 03/03/2023 | (2747) | (2767) |
|  | 3.990 | 11/03/2022 | 03/03/2023 | (263) | (265) |
|  | 4.450 | 10/14/2022 | 02/13/2023 | (545) | (551) |
|  | 4.450 | 10/31/2022 | 01/30/2023 | (2524) | (2544) |
|  | 4.450 | 11/07/2022 | 01/30/2023 | (1374) | (1384) |
|  | 4.610 | 10/21/2022 | 02/17/2023 | (1500) | (1514) |
|  | 4.620 | 10/14/2022 | 02/13/2023 | (7089) | (7163) |
|  | 4.620 | 11/02/2022 | 02/13/2023 | (498) | (502) |
|  | 4.620 | 11/07/2022 | 02/13/2023 | (8485) | (8547) |
|  | 4.620 | 11/15/2022 | 02/13/2023 | (2308) | (2323) |
|  | 4.620 | 11/23/2022 | 02/13/2023 | (2190) | (2202) |
|  | 4.730 | 10/31/2022 | 01/30/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(12668) | &nbsp;&nbsp;&nbsp;&nbsp;(12774) |
|  | 4.760 | 10/07/2022 | 04/05/2023 | (885) | (895) |
|  | 4.860 | 11/07/2022 | 02/07/2023 | (4141) | (4173) |
|  | 4.860 | 11/23/2022 | 02/07/2023 | (2190) | (2202) |
|  CEW | 2.400 | 08/05/2022 | TBD<sup>(3)</sup> | (791) | (963) |
|  CIB | 4.600 | 10/17/2022 | 01/17/2023 | $(6) | (6) |
|  IND | 4.530 | 10/28/2022 | 01/31/2023 | (2681) | (2704) |
|  | 4.980 | 11/07/2022 | 03/07/2023 | (4330) | (4364) |
|  | 5.080 | 11/07/2022 | 03/07/2023 | (586) | (591) |
|  JML | 1.000 | 09/14/2022 | TBD<sup>(3)</sup> | (95) | (101) |
|  | 1.500 | 09/14/2022 | TBD<sup>(3)</sup> | (451) | (484) |
|  | 2.050 | 09/14/2022 | TBD<sup>(3)</sup> | (8267) | (8871) |
|  | 4.750 | 12/16/2022 | 02/03/2023 | $(1619) | (1623) |
|  MEI | 4.720 | 10/24/2022 | 01/27/2023 | (207) | (209) |
|  | 4.770 | 10/24/2022 | 01/27/2023 | (704) | (710) |
|  RCY | 4.170 | 09/16/2022 | 01/17/2023 | (1323) | (1340) |
|  | 4.590 | 10/17/2022 | 02/17/2023 | (332) | (335) |
|  RDR | 4.260 | 10/06/2022 | 02/03/2023 | (2294) | (2318) |
|  | 4.430 | 10/26/2022 | 01/30/2023 | (750) | (756) |
|  | 4.500 | 10/31/2022 | 01/30/2023 | (2533) | (2553) |
|  | 4.700 | 11/10/2022 | 02/10/2023 | (1286) | (1295) |
|  SOG | 4.640 | 10/14/2022 | 02/14/2023 | (2087) | (2109) |
|  | 4.640 | 11/16/2022 | 02/14/2023 | (522) | (525) |
|  | 4.660 | 10/24/2022 | 01/24/2023 | (1570) | (1585) |
|  | 4.660 | 10/25/2022 | 01/25/2023 | (504) | (509) |
|  | 4.660 | 10/28/2022 | 01/24/2023 | (1092) | (1101) |
|  | 4.660 | 11/18/2022 | 01/24/2023 | (2809) | (2825) |
|  | 4.750 | 10/31/2022 | 01/31/2023 | (499) | (503) |
|  | 4.790 | 11/02/2022 | 02/02/2023 | (1193) | (1203) |
|  | 4.790 | 11/04/2022 | 02/02/2023 | (682) | (687) |
|  | 4.820 | 12/23/2022 | 02/22/2023 | (834) | (835) |
|  | 4.830 | 11/04/2022 | 02/06/2023 | (1221) | (1231) |
|  | 4.830 | 12/12/2022 | 02/06/2023 | (702) | (705) |
|  | 4.900 | 10/12/2022 | 04/12/2023 | (5740) | (5805) |
|  | 4.900 | 11/04/2022 | 04/12/2023 | (801) | (807) |
|  | 4.990 | 11/16/2022 | 03/07/2023 | (3339) | (3361) |
|  UBS | 2.150 | 11/22/2022 | 02/20/2023 | (2286) | (2453) |
|  | 4.840 | 11/02/2022 | 02/03/2023 | $(9596) | (9676) |
|  Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | $&nbsp;&nbsp;&nbsp;&nbsp;(179422) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 55.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO High Income Fund | (Cont.) |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS SUMMARY
The following is a summary by counterparty of the market value of Borrowings and Other Financing Transactions and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> | Payable for<br>Reverse<br>Repurchase<br>Agreements | Payable for<br>Sale-Buyback<br>Transactions | Total<br>Borrowings and<br>Other Financing<br>Transactions | Collateral<br>Pledged/(Received) | Net Exposure<sup>(4)</sup> |
|  Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement |
|  BOS | $0 | $(6135) | $0 | $(6135) | $6538 | $403 |
|  BPS | 0 | (39818) | 0 | (39818) | 46693 | 6875 |
|  BRC | 0 | (1543) | 0 | (1543) | 1248 | (295) |
|  BYR | 0 | (10586) | 0 | (10586) | 12057 | 1471 |
|  CDC | 0 | (56197) | 0 | (56197) | 64731 | 8534 |
|  CEW | 0 | (963) | 0 | (963) | 891 | (72) |
|  CIB | 0 | (6) | 0 | (6) | 7 | 1 |
|  FICC | 98957 | 0 | 0 | 98957 | (100888) | (1931) |
|  IND | 0 | (7659) | 0 | (7659) | 9129 | 1470 |
|  JML | 0 | (11079) | 0 | (11079) | 12030 | 951 |
|  MEI | 0 | (919) | 0 | (919) | 1094 | 175 |
|  RCY | 0 | (1675) | 0 | (1675) | 1904 | 229 |
|  RDR | 0 | (6922) | 0 | (6922) | 6954 | 32 |
|  SOG | 0 | (23791) | 0 | (23791) | 27497 | 3706 |
|  UBS | 0 | (12129) | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(12129) | &nbsp;&nbsp;&nbsp;&nbsp;14362 | &nbsp;&nbsp;&nbsp;&nbsp;2233 |
|  Total Borrowings and Other Financing Transactions | $&nbsp;&nbsp;&nbsp;&nbsp;98957 | $&nbsp;&nbsp;&nbsp;&nbsp;(179422) | $&nbsp;&nbsp;&nbsp;&nbsp;0 |  |  |  |

---

#### CERTAIN TRANSFERS ACCOUNTED FOR AS SECURED BORROWINGS

#### Remaining Contractual Maturity of the Agreements

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **Overnight and<br>Continuous** | **Up to 30 days** | **31-90 days** | **Greater Than 90 days** | **Total** |
|  Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements |
|  Corporate Bonds & Notes | $0 | $(36308) | $(105930) | $(21305) | $(163543) |
|  U.S. Government Agencies | 0 | (1346) | (335) | 0 | (1681) |
|  Sovereign Issues | 0 | 0 | (1623) | 0 | (1623) |
|  Preferred Securities | 0 | (12575) | 0 | 0 | (12575) |
|  Total Borrowings | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(50229) | $&nbsp;&nbsp;&nbsp;&nbsp;(107888) | $&nbsp;&nbsp;&nbsp;&nbsp;(21305) | $(179422) |
|  Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | $&nbsp;&nbsp;&nbsp;&nbsp;(179422) |

---

(k) Securities with an aggregate market value of $211,410 have been pledged as collateral under the terms of the above master agreements as of December 31, 2022. 

<sup>(1)</sup> Includes accrued interest. 

<sup>(2)</sup> The average amount of borrowings outstanding during the period ended December 31, 2022 was $(213714) at a weighted average interest rate of 2.778%. Average borrowings may include reverse repurchase agreements and sale-buyback transactions, if held during the period. 

<sup>(3)</sup> Open maturity reverse repurchase agreement. 

<sup>(4)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from borrowings and other financing transactions can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

&nbsp;&nbsp;&nbsp;&nbsp;(l) FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value<sup>(4)</sup>** | Variation Margin | Variation Margin |
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/<br>(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value<sup>(4)</sup>** | Asset | Liability |
|  Bombardier, Inc. | 5.000% | Quarterly | 12/20/2024 | 2.780% | $2000 | $(8) | $93 | $85 | $0 | $0 |
|  Jaguar Land Rover Automotive | 5.000 | Quarterly | 06/20/2026 | 9.564 | 900 | 63 | &nbsp;&nbsp;&nbsp;&nbsp;(178) | (115) | 1 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 12/20/2025 | 2.767 | 9400 | (1005) | 525 | (480) | 1 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 06/20/2027 | 3.357 | 3000 | (227) | (62) | (289) | 0 | (3) |
|  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(1177) | $378 | $&nbsp;&nbsp;&nbsp;&nbsp;(799) | $&nbsp;&nbsp;&nbsp;&nbsp;2 | $&nbsp;&nbsp;&nbsp;&nbsp;(3) |

---

---

| | | |
|:---|:---|:---|
| 56.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

#### INTEREST RATE SWAPS

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Pay/Receive<br>Floating Rate | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Notional<br>Amount** | **Premiums<br>Paid/(Received)** | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | **Variation Margin** | **Variation Margin** |
| Pay/Receive<br>Floating Rate | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Notional<br>Amount** | **Premiums<br>Paid/(Received)** | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | Asset | Liability |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750% | Annual | 09/21/2032 |  | 13400 | $1297 | $2668 | $3965 | $10 | $0 |
|  Receive<sup>(5)</sup> | 1-Day GBP-SONIO Compounded-OIS | 2.000 | Annual | 03/15/2033 |  | 6900 | 768 | 407 | 1175 | 4 | 0 |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750 | Annual | 09/21/2052 |  | 2700 | (7) | 1625 | 1618 | 4 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.450 | Annual | 12/20/2024 |  | $27200 | (2) | 407 | 405 | 14 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2024 |  | 370800 | (16297) | (1231) | (17528) | 0 | (341) |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.350 | Annual | 01/17/2025 |  | 13700 | 2 | 201 | 203 | 5 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.300 | Annual | 01/17/2026 |  | 2200 | 1 | 51 | 52 | 2 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 1.750 | Annual | 06/15/2027 |  | 112200 | (2687) | (7328) | (10015) | 0 | (229) |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2029 |  | 53300 | (5501) | 162 | (5339) | 0 | (105) |
|  Receive | 1-Day USD-SOFR Compounded-OIS | 1.250 | Annual | 06/15/2032 |  | 87000 | 4224 | 12522 | 16746 | 299 | 0 |
|  Receive | 1-Day USD-SOFR Compounded-OIS | 1.750 | Annual | 06/15/2032 |  | 59500 | 2570 | 6354 | 8924 | 206 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.000 | Semi-Annual | 06/17/2023 |  | 17400 | (376) | 726 | 350 | 9 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.250 | Semi-Annual | 06/16/2024 |  | 14250 | 39 | 938 | 977 | 17 | 0 |
|  Receive | 3-Month USD-LIBOR | 3.000 | Semi-Annual | 06/19/2024 |  | 1900 | (32) | 87 | 55 | 2 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.400 | Semi-Annual | 12/18/2024 |  | 72000 | (205) | 6153 | 5948 | 109 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.850 | Semi-Annual | 02/01/2027 |  | 43700 | 343 | 5165 | 5508 | 63 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.370 | Semi-Annual | 08/25/2028 |  | 27135 | 0 | 3561 | 3561 | 52 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.000 | Semi-Annual | 06/19/2029 |  | 79200 | 1687 | (5942) | (4255) | 0 | (171) |
|  Receive | 3-Month USD-LIBOR | 1.000 | Semi-Annual | 12/16/2030 |  | 127 | 1 | 24 | 25 | 0 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.750 | Semi-Annual | 06/16/2031 |  | 7300 | 517 | 1131 | 1648 | 17 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.350 | Semi-Annual | 02/09/2032 |  | 139800 | 581 | 26015 | 26596 | 0 | (59) |
|  Pay | 3-Month USD-LIBOR | 3.500 | Semi-Annual | 06/19/2044 |  | 395600 | 70742 | (81523) | (10781) | 295 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.000 | Semi-Annual | 01/15/2050 |  | 35600 | (256) | 9977 | 9721 | 170 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 01/22/2050 |  | 55100 | (127) | 17648 | 17521 | 258 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.875 | Semi-Annual | 02/07/2050 |  | 42480 | (165) | 12714 | 12549 | 205 | 0 |
|  Pay | 3-Month USD-LIBOR | 2.000 | Semi-Annual | 12/15/2051 |  | 29200 | 2124 | (10283) | (8159) | 0 | (146) |
|  Receive | 3-Month USD-LIBOR | 1.700 | Semi-Annual | 02/01/2052 |  | 223450 | (4286) | 77420 | 73134 | 0 | (285) |
|  Receive | 6-Month EUR-EURIBOR | 0.270 | Annual | 09/11/2024 |  | 25600 | 4 | 1455 | 1459 | 37 | 0 |
|  Pay | 6-Month EUR-EURIBOR | 0.650 | Annual | 02/26/2029 |  | 65500 | 66 | (9729) | (9663) | 0 | (203) |
|  Receive | 6-Month EUR-EURIBOR | 0.150 | Annual | 06/17/2030 |  | 24100 | (1059) | 6222 | 5163 | 77 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 0.250 | Annual | 09/21/2032 |  | 3200 | 290 | 562 | 852 | 16 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 1.250 | Annual | 08/19/2049 |  | 18200 | 76 | 4880 | 4956 | 161 | 0 |
|  Pay | 6-Month EUR-EURIBOR | 0.500 | Annual | 06/17/2050 |  | 7700 | 1317 | (4599) | (3282) | 0 | (60) |
|  Receive<sup>(5)</sup> | 6-Month EUR-EURIBOR | 0.830 | Annual | 12/09/2052 |  | 9900 | 24 | 294 | 318 | 14 | 0 |
|  |  |  |  |  |  |  | $55673 | $78734 | $134407 | $2046 | $(1599) |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;54496 | $&nbsp;&nbsp;&nbsp;&nbsp;79112 | $&nbsp;&nbsp;&nbsp;&nbsp;133608 | $&nbsp;&nbsp;&nbsp;&nbsp;2048 | $&nbsp;&nbsp;&nbsp;&nbsp;(1602) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED SUMMARY
The following is a summary of the market value and variation margin of Exchange-Traded or Centrally Cleared Financial Derivative Instruments as of December 31, 2022:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities |
|  | Market Value | Variation Margin<br>Asset | Variation Margin<br>Asset | | Market Value | Variation Margin<br>Liability | Variation Margin<br>Liability | |
|  | Purchased<br>Options | Futures | Swap<br>Agreements | Total | Written<br>Options | Futures | Swap<br>Agreements | Total |
|  Total Exchange-Traded or Centrally Cleared | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;2048 | $&nbsp;&nbsp;&nbsp;&nbsp;2048 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(1602) | $&nbsp;&nbsp;&nbsp;&nbsp;(1602) |

---

Cash of $25,940 has been pledged as collateral for exchange-traded and centrally cleared financial derivative instruments as of December 31, 2022. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information.

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **57** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO High Income Fund | (Cont.) |

---

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> This instrument has a forward starting effective date. See Note 2, Securities Transactions and Investment Income, in the Notes to Financial Statements for further information. 

&nbsp;&nbsp;&nbsp;&nbsp;(m) FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER

#### FORWARD FOREIGN CURRENCY CONTRACTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | **Unrealized Appreciation/**<br> (Depreciation) | **Unrealized Appreciation/**<br> (Depreciation) |
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | Asset | Liability |
|  BOA | 01/2023 | 1711 | $1811 | $0 | $(21) |
|  | 01/2023 | $785 | 647 | 0 | (3) |
|  | 02/2023 | 2069 | $2185 | 0 | (63) |
|  BPS | 01/2023 | $356 | 334 | 2 | 0 |
|  BRC | 01/2023 | 429 | 403 | 3 | 0 |
|  | 02/2023 | 1064 | $1134 | 0 | (22) |
|  CBK | 01/2023 | $343 | 323 | 2 | 0 |
|  | 02/2023 | 6874 | $1274 | 0 | (21) |
|  | 05/2023 | 4729 | 1192 | 0 | (40) |
|  GLM | 05/2023 | $907 | 3610 | 33 | 0 |
|  MBC | 01/2023 | 69272 | $72611 | 0 | (1573) |
|  | 01/2023 | 3714 | 4526 | 36 | 0 |
|  | 02/2023 | 1431 | 1080 | 23 | 0 |
|  MYI | 02/2023 | 156 | 167 | 0 | (2) |
|  Total Forward Foreign Currency Contracts | Total Forward Foreign Currency Contracts |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;99 | $&nbsp;&nbsp;&nbsp;&nbsp;(1745) |

---

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | Swap Agreements,<br>at Value<sup>(4)</sup> | Swap Agreements,<br>at Value<sup>(4)</sup> |
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Notional<br>Amount<sup>(3)</sup>** | **Premiums<br>Paid/(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | Asset | Liability |
| JPM | Banca Monte Dei Paschi Di | 5.000% | Quarterly | 06/20/2025 | 4.967% | EUR | 200 | $(4) | $5 | $1 | $0 |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | $&nbsp;&nbsp;&nbsp;&nbsp;(4) | $&nbsp;&nbsp;&nbsp;&nbsp;5 | $&nbsp;&nbsp;&nbsp;&nbsp;1 | $&nbsp;&nbsp;&nbsp;&nbsp;0 |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER SUMMARY
The following is a summary by counterparty of the market value of OTC financial derivative instruments and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | | | |
| Counterparty | Forward<br>Foreign<br>Currency<br>Contracts | Purchased<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Forward<br>Foreign<br>Currency<br>Contracts | Written<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Net Market<br>Value of OTC<br>Derivatives | **Collateral<br>Pledged/**<br> (Received) | Net<br>Exposure<sup>(5)</sup> |
|  BOA | $0 | $0 | $0 | $0 | $(87) | $0 | $0 | $(87) | $(87) | $47 | $(40) |
|  BPS | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 2 |
|  BRC | 3 | 0 | 0 | 3 | (22) | 0 | 0 | (22) | (19) | 0 | (19) |
|  CBK | 2 | 0 | 0 | 2 | (61) | 0 | 0 | (61) | (59) | 0 | (59) |
|  GLM | 33 | 0 | 0 | 33 | 0 | 0 | 0 | 0 | 33 | 0 | 33 |
|  JPM | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
|  MBC | 59 | 0 | 0 | 59 | (1573) | 0 | 0 | (1573) | &nbsp;&nbsp;&nbsp;&nbsp;(1514) | &nbsp;&nbsp;&nbsp;&nbsp;991 | &nbsp;&nbsp;&nbsp;&nbsp;(523) |
|  MYI | 0 | 0 | 0 | 0 | (2) | 0 | 0 | (2) | (2) | 0 | (2) |
|  Total Over the Counter | $&nbsp;&nbsp;&nbsp;&nbsp;99 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;1 | $&nbsp;&nbsp;&nbsp;&nbsp;100 | $&nbsp;&nbsp;&nbsp;&nbsp;(1745) | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(1745) |  |  |  |

---

(n) Securities with an aggregate market value of $1,038 have been pledged as collateral for financial derivative instruments as governed by International Swaps and Derivatives Association, Inc. master agreements as of December 31, 2022. 

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

---

| | | |
|:---|:---|:---|
| **58** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from OTC financial derivative instruments can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

#### FAIR VALUE OF FINANCIAL DERIVATIVE INSTRUMENTS
The following is a summary of the fair valuation of the Fund's derivative instruments categorized by risk exposure. See Note 7, Principal and Other Risks, in the Notes to Financial Statements on risks of the Fund.

Fair Values of Financial Derivative Instruments on the Statements of Assets and Liabilities as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **Derivatives not accounted for as hedging instruments** | **Derivatives not accounted for as hedging instruments** | **Derivatives not accounted for as hedging instruments** | **Derivatives not accounted for as hedging instruments** | **Derivatives not accounted for as hedging instruments** | **Derivatives not accounted for as hedging instruments** |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate<br>Contracts | Total |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $2 | $0 | $0 | $2046 | $2048 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $99 | $0 | $99 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 1 | 0 | 0 | 0 | 1 |
|  | $0 | $1 | $0 | $99 | $0 | $100 |
|  | $0 | $3 | $0 | $99 | $2046 | $2148 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $3 | $0 | $0 | $1599 | $1602 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $1745 | $0 | $1745 |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;3 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;1745 | $&nbsp;&nbsp;&nbsp;&nbsp;1599 | $&nbsp;&nbsp;&nbsp;&nbsp;3347 |

---

The effect of Financial Derivative Instruments on the Statements of Operations for the period ended December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate<br>Contracts | Total |
|  Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $173 | $0 | $0 | $38540 | $38713 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $3395 | $0 | $3395 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 5 | 0 | 0 | 0 | 5 |
|  | $0 | $5 | $0 | $3395 | $0 | $3400 |
|  | $0 | $178 | $0 | $3395 | $38540 | $42113 |
|  Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $922 | $0 | $0 | $(29097) | $(28175) |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $(4146) | $0 | $(4146) |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 9 | 0 | 0 | 0 | 9 |
|  | $0 | $9 | $0 | $(4146) | $0 | $(4137) |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;931 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(4146) | $&nbsp;&nbsp;&nbsp;&nbsp;(29097) | $&nbsp;&nbsp;&nbsp;&nbsp;(32312) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 59.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO High Income Fund | (Cont.) |

---

#### FAIR VALUE MEASUREMENTS
The following is a summary of the fair valuations according to the inputs used as of December 31, 2022 in valuing the Fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Category and Subcategory | Level 1 | Level 2 | Level 3 | Fair<br>Value at<br>12/31/2022 |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $0 | $161183 | $27729 | $188912 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Banking & Finance | 0 | 70222 | 0 | 70222 |
| &nbsp;&nbsp; Industrials | 0 | 177794 | 0 | 177794 |
| &nbsp;&nbsp; Utilities | 0 | 43907 | 0 | 43907 |
|  Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes |
| &nbsp;&nbsp; Industrials | 0 | 3208 | 0 | 3208 |
|  Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes |
| &nbsp;&nbsp; District of Columbia | 0 | 10803 | 0 | 10803 |
| &nbsp;&nbsp; Illinois | 0 | 13277 | 0 | 13277 |
| &nbsp;&nbsp; Puerto Rico | 0 | 716 | 0 | 716 |
| &nbsp;&nbsp; Texas | 0 | 8086 | 0 | 8086 |
| &nbsp;&nbsp; West Virginia | 0 | 4929 | 0 | 4929 |
|  U.S. Government Agencies | 0 | 6914 | 8167 | 15081 |
|  Non-Agency Mortgage-Backed Securities | 0 | 58540 | 0 | 58540 |
|  Asset-Backed Securities | 0 | 48773 | 4923 | 53696 |
|  Sovereign Issues | 0 | 9524 | 0 | 9524 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | 1887 | 0 | 764 | 2651 |
| &nbsp;&nbsp; Consumer Staples | 85 | 0 | 0 | 85 |
| &nbsp;&nbsp; Energy | 2701 | 0 | 216 | 2917 |
| &nbsp;&nbsp; Financials | 1826 | 0 | 5325 | 7151 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 18856 | 18856 |
|  Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 0 | 0 | 157 | 157 |
|  Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 0 | 0 | 175 | 175 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Level 1** | **Level 2** | **Level 3** | **Fair<br>Value at<br>12/31/2022** |
| &nbsp;&nbsp; Information Technology | $0 | $0 | $10882 | $10882 |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Banking & Finance | 0 | 34749 | 0 | 34749 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 1625 | 1625 |
|  Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts |
| &nbsp;&nbsp; Real Estate | 4856 | 0 | 0 | 4856 |
|  Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments |
| &nbsp;&nbsp; Repurchase Agreements | 0 | 98910 | 0 | 98910 |
| &nbsp;&nbsp; U.S. Treasury Bills | 0 | 4432 | 0 | 4432 |
|  Total Investments | $11355 | $755967 | $78819 | $846141 |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | 0 | 2048 | 0 | 2048 |
|  Over the counter | 0 | 100 | 0 | 100 |
|  | $0 | $2148 | $0 | $2148 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | 0 | (1602) | 0 | (1602) |
|  Over the counter | 0 | (1745) | 0 | (1745) |
|  | $0 | $(3347) | $0 | $(3347) |
|  Total Financial Derivative Instruments | $0 | $(1199) | $0 | $(1199) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;11355 | $&nbsp;&nbsp;&nbsp;&nbsp;754768 | $&nbsp;&nbsp;&nbsp;&nbsp;78819 | $&nbsp;&nbsp;&nbsp;&nbsp;844942 |

---

The following is a reconciliation of the fair valuations using significant unobservable inputs (Level 3) for the Fund during the period ended December 31, 2022:

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Category and Subcategory | Beginning<br>Balance<br>at 06/30/2022 | Net<br>Purchases | Net<br>Sales/<br>Settlements | Accrued<br>Discounts/<br>(Premiums) | Realized<br>Gain/(Loss) | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<sup>(1)</sup> | Transfers into<br>Level 3 | Transfers out<br>of Level 3 | Ending<br>Balance<br>at 12/31/2022 | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<br>on Investments<br>Held at<br>12/31/2022<sup>(1)</sup> |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $35976 | $15603 | $(6026) | $(52) | $107 | $(1259) | $12942 | $(29562) | $27729 | $433 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Industrials | 34901 | 580 | 0 | 67 | 0 | (1966) | 0 | (33582) | 0 | 0 |
|  U.S. Government Agencies | 8195 | 0 | (101) | 18 | 34 | 21 | 0 | 0 | 8167 | 16 |
|  Asset-Backed Securities | 5577 | 0 | 0 | 0 | 0 | (654) | 0 | 0 | 4923 | (652) |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | 984 | 0 | 0 | 0 | 0 | (220) | 0 | 0 | 764 | (219) |
| &nbsp;&nbsp; Energy | 91 | 0 | 0 | 0 | 0 | 125 | 0 | 0 | 216 | 125 |
| &nbsp;&nbsp; Financials | 6212 | 0 | 0 | 0 | 0 | (887) | 0 | 0 | 5325 | (887) |
| &nbsp;&nbsp; Industrials | 17801 | 149 | 0 | 0 | 0 | 906 | 0 | 0 | 18856 | 905 |
| &nbsp;&nbsp; Materials | 38 | 0 | (41) | 0 | 41 | (38) | 0 | 0 | 0 | 0 |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 111 | 0 | 0 | 0 | 0 | 46 | 0 | 0 | 157 | 47 |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 117 | 0 | 0 | 0 | 0 | 58 | 0 | 0 | 175 | 58 |
| &nbsp;&nbsp; Industrials | 1075 | 0 | (216) | 0 | 216 | (1075) | 0 | 0 | 0 | 0 |
| &nbsp;&nbsp; Information Technology | 11462 | 0 | 0 | 0 | 0 | (580) | 0 | 0 | 10882 | (581) |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Industrials | 67316 | 0 | (80210) | 0 | 44590 | (30071) | 0 | 0 | 1625 | (206) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;189856 | $&nbsp;&nbsp;&nbsp;&nbsp;16332 | $&nbsp;&nbsp;&nbsp;&nbsp;(86594) | $&nbsp;&nbsp;&nbsp;&nbsp;33 | $&nbsp;&nbsp;&nbsp;&nbsp;44988 | $&nbsp;&nbsp;&nbsp;&nbsp;(35594) | $&nbsp;&nbsp;&nbsp;&nbsp;12942 | $&nbsp;&nbsp;&nbsp;&nbsp;(63144) | $&nbsp;&nbsp;&nbsp;&nbsp;78819 | $&nbsp;&nbsp;&nbsp;&nbsp;(961) |

---

---

| | | |
|:---|:---|:---|
| 60.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

The following is a summary of significant unobservable inputs used in the fair valuations of assets and liabilities categorized within Level 3 of the fair value hierarchy:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Ending<br>Balance<br>at 12/31/2022** | **Valuation<br>Technique** | **Unobservable<br>Inputs** |  | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) |
| **Category and Subcategory** | **Ending<br>Balance<br>at 12/31/2022** | **Valuation<br>Technique** | **Unobservable<br>Inputs** |  | Input Value(s) | **Weighted**<br> **Average** |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $6825 | Discounted Cash Flow | Discount Spread |  | 9.080 |  |
|  | 20904 | Third Party Vendor | Broker Quote |  | 35.000-87.500 | 65.570 |
|  U.S. Government Agencies | 8167 | Discounted Cash Flow | Discount Rate |  | 12.000 |  |
|  Asset-Backed Securities | 4923 | Discounted Cash Flow | Discount Rate |  | 10.000-20.000 | 11.404 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
|  Communication Services | 764 | Reference Instrument | Stock Price W/<br>Liquidity Discount |  | 10.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Energy | 216 | Market Comparable Valuation | EBITDA Multiple |  | 4.600 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 5325 | Indicative Market Quotation | Price | $— | 24.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 15951 | Market Comparable Valuation /<br>Discounted Cash Flow | Revenue \| EBITDA Multiple<br>/ Discount Rate | % | 0.620\|6.160/10.000 |  |
|  | 2243 | Discounted Cash Flow | Discount Rate |  | 11.590 |  |
|  | 662 | Indicative Market Quotation | Price | $— | 7.500 |  |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 157 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 1 | Indicative Market Quotation | Price | $— | 2.000-3.500 | 2.943 |
|  | 174 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Information Technology | 10882 | Market Comparable Valuation | EBITDA Multiple |  | 4.500 |  |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 1625 | Market Comparable Valuation /<br>Discounted Cash Flow | TBV Multiple/Discount Rate | % | 0.370/24.820 |  |
|  Total | $&nbsp;&nbsp;&nbsp;&nbsp;78819 |  |  |  |  |  |

---

<sup>(1)</sup> Any difference between Net Change in Unrealized Appreciation/(Depreciation) and Net Change in Unrealized Appreciation/(Depreciation) on Investments Held at December 31, 2022 may be due to an investment no longer held or categorized as Level 3 at period end. 

<sup>(2)</sup> Includes valuation techniques not defined in the Notes to Financial Statements as securities valued using such techniques are not considered significant to the Fund. 

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **61** |

---

------

---

| | |
|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund |

---

#### (Amounts in thousands\*, except number of shares, contracts, units and ounces, if any)

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| INVESTMENTS IN SECURITIES 141.8% | INVESTMENTS IN SECURITIES 141.8% | INVESTMENTS IN SECURITIES 141.8% |
| LOAN PARTICIPATIONS AND ASSIGNMENTS 36.8% | LOAN PARTICIPATIONS AND ASSIGNMENTS 36.8% | LOAN PARTICIPATIONS AND ASSIGNMENTS 36.8% |
|  American Airlines, Inc. | American Airlines, Inc. | American Airlines, Inc. |
|  8.993% (LIBOR03M + 4.750%) due 04/20/2028 ~ | 700 | 698 |
|  AmSurg LLC | AmSurg LLC | AmSurg LLC |
|  TBD% due 04/29/2027 µ | 738 | 723 |
|  AP Core Holdings LLC | AP Core Holdings LLC | AP Core Holdings LLC |
|  9.884% (LIBOR01M + 5.500%) due 09/01/2027 ~ | 8193 | 7424 |
|  Arches Buyer, Inc. | Arches Buyer, Inc. | Arches Buyer, Inc. |
|  7.634% (LIBOR01M + 3.250%) due 12/06/2027 ~ | 475 | 441 |
|  Carnival Corp. | Carnival Corp. | Carnival Corp. |
|  5.648% (EUR001M + 3.750%) due 06/30/2025 ~ | 3177 | 3278 |
|  Diamond Sports Group LLC | Diamond Sports Group LLC | Diamond Sports Group LLC |
|  12.317% due 05/25/2026 | 9372 | 8906 |
|  DirecTV Financing LLC | DirecTV Financing LLC | DirecTV Financing LLC |
|  9.384% (LIBOR01M + 5.000%) due 08/02/2027 ~ | 4837 | 4720 |
|  Encina Private Credit LLC | Encina Private Credit LLC | Encina Private Credit LLC |
|  TBD% - 8.684% (LIBOR01M + 4.366%) due 11/30/2025 «~µ | 3945 | 3860 |
|  Envision Healthcare Corp. | Envision Healthcare Corp. | Envision Healthcare Corp. |
|  12.119% due 04/29/2027 | 4062 | 3975 |
|  15.744% due 04/28/2028 | 9601 | 7857 |
|  Forbes Energy Services LLC | Forbes Energy Services LLC | Forbes Energy Services LLC |
|  7.000% due 06/30/2023 « | 193 | 0 |
|  11.000% due 06/30/2023 « | 3 | 0 |
|  Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. |
|  12.138% due 10/15/2027 | 3412 | 3370 |
|  12.565% due 10/18/2027 | 1944 | &nbsp;&nbsp;&nbsp;&nbsp;1418 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  7.445% due 02/01/2029 | 2171 | 2100 |
|  Lealand Finance Co. BV | Lealand Finance Co. BV | Lealand Finance Co. BV |
|  7.384% (LIBOR01M + 3.000%) due 06/28/2024 ~ | 40 | 26 |
|  Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) |
|  8.384% (LIBOR01M + 1.000%) due 06/30/2025 ~(b) | 188 | 101 |
|  MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC |
|  8.985% (LIBOR03M + 4.250%) due 09/01/2028 ~ | 3465 | 2976 |
|  Oi SA | Oi SA | Oi SA |
|  TBD% due 02/26/2035 « | 2161 | 756 |
|  Poseidon Bidco SASU | Poseidon Bidco SASU | Poseidon Bidco SASU |
|  7.452% (EUR003M + 5.250%) due 07/14/2028 «~ | 3500 | 3228 |
|  Promotora de Informaciones SA | Promotora de Informaciones SA | Promotora de Informaciones SA |
|  6.708% (EUR003M + 5.250%) due 12/31/2026 «~ | 5715 | 5261 |
|  8.000% (EUR003M + 8.000%) due 06/30/2027 «~ | 786 | 736 |
|  PUG LLC | PUG LLC | PUG LLC |
|  7.884% (LIBOR01M + 3.500%) due 02/12/2027 ~ | 4632 | 3856 |
|  8.634% (LIBOR01M + 4.250%) due 02/12/2027 «~ | 1394 | 1161 |
|  Redstone Holdco 2 LP | Redstone Holdco 2 LP | Redstone Holdco 2 LP |
|  9.108% (LIBOR03M + 4.750%) due 04/27/2028 ~ | 4569 | 3185 |
|  Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. |
|  9.485% (LIBOR03M + 4.750%) due 06/01/2028 «~ | 593 | 281 |
|  Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) |
|  10.750% (EUR006M) due 06/30/2023 ~(b) | 7510 | 5172 |
|  Syniverse Holdings, Inc. | Syniverse Holdings, Inc. | Syniverse Holdings, Inc. |
|  11.580% due 05/13/2027 | 9118 | 8001 |
|  Team Health Holdings, Inc. | Team Health Holdings, Inc. | Team Health Holdings, Inc. |
|  7.134% (LIBOR01M + 2.750%) due 02/06/2024 ~ | 7088 | 6095 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Telemar Norte Leste SA | Telemar Norte Leste SA | Telemar Norte Leste SA |
|  TBD% due 02/26/2035 « | 6275 | 2197 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  9.438% (LIBOR01M + 5.000%) due 06/26/2026 ~ | 8334 | 4704 |
|  9.938% (LIBOR01M + 5.500%) due 06/26/2026 ~ | 2744 | 1549 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  9.730% (LIBOR03M + 5.000%) due 09/01/2025 ~ | 7077 | 5029 |
|  Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) |
|  15.000% due 03/15/2029 (b) | 2395 | 1862 |
|  Windstream Services LLC | Windstream Services LLC | Windstream Services LLC |
|  8.423% due 02/28/2027 « | 3130 | 2986 |
|  10.673% (LIBOR01M + 6.250%) due 09/21/2027 ~ | 1349 | 1227 |
|  Total Loan Participations and Assignments (Cost $126,816) | Total Loan Participations and Assignments (Cost $126,816) | &nbsp;&nbsp;&nbsp;&nbsp;109159 |
| CORPORATE BONDS & NOTES 51.2% | CORPORATE BONDS & NOTES 51.2% | CORPORATE BONDS & NOTES 51.2% |
| BANKING & FINANCE 11.5% | BANKING & FINANCE 11.5% | BANKING & FINANCE 11.5% |
|  Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. |
|  4.625% due 06/15/2029 (m) | 1110 | 890 |
|  Armor Holdco, Inc. | Armor Holdco, Inc. | Armor Holdco, Inc. |
|  8.500% due 11/15/2029 (m) | 2000 | 1505 |
|  Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA |
|  1.875% due 01/09/2026 | 700 | 644 |
|  2.625% due 04/28/2025 | 3774 | 3666 |
|  3.625% due 09/24/2024 | 1483 | 1511 |
|  5.375% due 01/18/2028 •  | 1211 | 1048 |
|  8.000% due 01/22/2030 •  | 918 | 862 |
|  8.500% due 09/10/2030 •  | 1138 | 1074 |
|  10.500% due 07/23/2029 | 2342 | 2328 |
|  Banco de Credito del Peru SA | Banco de Credito del Peru SA | Banco de Credito del Peru SA |
|  4.650% due 09/17/2024 | 400 | 98 |
|  Barclays PLC | Barclays PLC | Barclays PLC |
|  7.437% due 11/02/2033 •  | 970 | 1019 |
|  BNP Paribas SA | BNP Paribas SA | BNP Paribas SA |
|  3.132% due 01/20/2033 •  | 855 | 677 |
|  BOI Finance BV | BOI Finance BV | BOI Finance BV |
|  7.500% due 02/16/2027 | 1500 | 1297 |
|  Claveau Re Ltd. | Claveau Re Ltd. | Claveau Re Ltd. |
|  21.590% (T-BILL 3MO + 17.250%) due 07/08/2028 ~ | 600 | 588 |
|  Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. |
|  13.850% (T-BILL 1MO + 9.250%) due 04/03/2028 ~ | 400 | 324 |
|  Credit Suisse Group AG | Credit Suisse Group AG | Credit Suisse Group AG |
|  6.373% due 07/15/2026 •(m) | 300 | 282 |
|  6.442% due 08/11/2028 •  | 300 | 274 |
|  7.500% due 12/11/2023 •(i)(j) | 640 | 561 |
|  7.500% due 12/11/2023 •(i)(j)(m) | 3200 | 2803 |
|  GSPA Monetization Trust | GSPA Monetization Trust | GSPA Monetization Trust |
|  6.422% due 10/09/2029 | 1235 | 1187 |
|  Hestia Re Ltd. | Hestia Re Ltd. | Hestia Re Ltd. |
|  13.840% (T-BILL 1MO + 9.500%) due 04/22/2025 ~ | 469 | 387 |
|  Sanders Re Ltd. | Sanders Re Ltd. | Sanders Re Ltd. |
|  16.090% (T-BILL 3MO + 11.750%) due 04/09/2029 ~ | 714 | 678 |
|  Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC |
|  5.659% due 06/30/2027 | 178 | 212 |
|  Uniti Group LP | Uniti Group LP | Uniti Group LP |
|  6.000% due 01/15/2030 (m) | 4868 | 3087 |
|  6.500% due 02/15/2029 (m) | 1400 | 930 |
|  VICI Properties LP | VICI Properties LP | VICI Properties LP |
|  3.875% due 02/15/2029 (m) | 1800 | 1580 |
|  4.500% due 01/15/2028 (m) | 1280 | 1182 |
|  Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC |
|  8.500% due 05/09/2026 | 3865 | 3068 |
|  Yosemite Re Ltd. | Yosemite Re Ltd. | Yosemite Re Ltd. |
|  14.087% (T-BILL 3MO + 9.750%) due 06/06/2025 ~ | 390 | 376 |
|  |  | 34138 |

---

---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT<br>(000S) | MARKET<br>VALUE<br>(000S) |
| INDUSTRIALS 31.7% | INDUSTRIALS 31.7% | INDUSTRIALS 31.7% |
|  Altice Financing SA | Altice Financing SA | Altice Financing SA |
|  5.750% due 08/15/2029 (m) | 1105 | 871 |
|  Boeing Co. | Boeing Co. | Boeing Co. |
|  6.125% due 02/15/2033 (m) | 885 | 902 |
|  Carvana Co. | Carvana Co. | Carvana Co. |
|  10.250% due 05/01/2030 | 1300 | 613 |
|  CGG SA | CGG SA | CGG SA |
|  7.750% due 04/01/2027 | 2900 | &nbsp;&nbsp;&nbsp;&nbsp;2548 |
|  8.750% due 04/01/2027 (m) | 1944 | 1557 |
|  Champion Path Holdings Ltd. | Champion Path Holdings Ltd. | Champion Path Holdings Ltd. |
|  4.500% due 01/27/2026 | 600 | 524 |
|  Community Health Systems, Inc. | Community Health Systems, Inc. | Community Health Systems, Inc. |
|  5.250% due 05/15/2030 (m) | 2100 | 1587 |
|  8.000% due 03/15/2026 (m) | 3752 | 3424 |
|  CVS Pass-Through Trust | CVS Pass-Through Trust | CVS Pass-Through Trust |
|  7.507% due 01/10/2032 (m) | 330 | 343 |
|  DISH DBS Corp. | DISH DBS Corp. | DISH DBS Corp. |
|  5.250% due 12/01/2026 (m) | 3520 | 2972 |
|  5.750% due 12/01/2028 (m) | 3560 | 2848 |
|  DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) |
|  7.000% due 12/31/2027 (b) | 2042 | 563 |
|  Dufry One BV | Dufry One BV | Dufry One BV |
|  3.625% due 04/15/2026 | 1617 | 1540 |
|  Exela Intermediate LLC | Exela Intermediate LLC | Exela Intermediate LLC |
|  11.500% due 07/15/2026 | 42 | 7 |
|  Fertitta Entertainment LLC | Fertitta Entertainment LLC | Fertitta Entertainment LLC |
|  6.750% due 01/15/2030 (m) | 1100 | 889 |
|  Ford Motor Co. | Ford Motor Co. | Ford Motor Co. |
|  7.700% due 05/15/2097 (m) | 6640 | 6296 |
|  HCA, Inc. | HCA, Inc. | HCA, Inc. |
|  7.500% due 11/15/2095 (m) | 1050 | 1130 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  6.500% due 03/15/2030 (m) | 8343 | 7479 |
|  Inter Media & Communication SpA | Inter Media & Communication SpA | Inter Media & Communication SpA |
|  6.750% due 02/09/2027 | 1500 | 1526 |
|  Market Bidco Finco PLC | Market Bidco Finco PLC | Market Bidco Finco PLC |
|  4.750% due 11/04/2027 | 400 | 346 |
|  Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. |
|  4.875% due 06/06/2025 (m) | 900 | 828 |
|  5.750% due 07/21/2028 (m) | 800 | 670 |
|  New Albertsons LP | New Albertsons LP | New Albertsons LP |
|  6.570% due 02/23/2028 | 2800 | 2880 |
|  Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. |
|  4.810% due 09/17/2030 (m) | 5300 | 4510 |
|  Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) |
|  11.000% due 02/15/2028 (b) | 725 | 806 |
|  Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. |
|  0.000% due 01/30/2023 (f)(i) | 450 | 1 |
|  Olympus Water U.S. Holding Corp. | Olympus Water U.S. Holding Corp. | Olympus Water U.S. Holding Corp. |
|  5.375% due 10/01/2029 | 1400 | 1093 |
|  Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. |
|  7.250% due 11/01/2025 (m) | 2400 | 2032 |
|  Sands China Ltd. | Sands China Ltd. | Sands China Ltd. |
|  2.800% due 03/08/2027 (m) | 400 | 343 |
|  3.350% due 03/08/2029 (m) | 300 | 246 |
|  5.900% due 08/08/2028 (m) | 2702 | 2534 |
|  Studio City Finance Ltd. | Studio City Finance Ltd. | Studio City Finance Ltd. |
|  6.000% due 07/15/2025 (m) | 1000 | 869 |
|  6.500% due 01/15/2028 (m) | 1000 | 778 |
|  Topaz Solar Farms LLC | Topaz Solar Farms LLC | Topaz Solar Farms LLC |
|  4.875% due 09/30/2039 (m) | 913 | 812 |
|  5.750% due 09/30/2039 (m) | 5433 | 5165 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  10.625% due 07/15/2027 (m) | 1982 | 436 |
|  Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) |
|  8.250% due 04/30/2028 (b)(m) | 2952 | 2973 |
|  Vale SA | Vale SA | Vale SA |
|  3.202% due 12/29/2049 ~(i) | 60000 | 4240 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  7.500% due 09/01/2025 (m) | 2040 | 1409 |

---

---

| | | |
|:---|:---|:---|
| **62** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Viking Cruises Ltd. | Viking Cruises Ltd. | Viking Cruises Ltd. |
|  13.000% due 05/15/2025 (m) | 3217 | 3399 |
|  VOC Escrow Ltd. | VOC Escrow Ltd. | VOC Escrow Ltd. |
|  5.000% due 02/15/2028 (m) | 1000 | 862 |
|  Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) |
|  10.500% due 11/15/2026 (b) | 13610 | 12555 |
|  Windstream Escrow LLC | Windstream Escrow LLC | Windstream Escrow LLC |
|  7.750% due 08/15/2028 (m) | 4700 | 3841 |
|  Wynn Macau Ltd. | Wynn Macau Ltd. | Wynn Macau Ltd. |
|  5.500% due 01/15/2026 (m) | 1000 | 919 |
|  5.500% due 10/01/2027 (m) | 1300 | 1138 |
|  5.625% due 08/26/2028 (m) | 500 | 428 |
|  |  | 93732 |
| UTILITIES 8.0% | UTILITIES 8.0% | UTILITIES 8.0% |
|  Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. |
|  7.125% due 02/11/2025 | 2000 | 1826 |
|  7.125% due 02/11/2025 (m) | 1000 | 913 |
|  NGD Holdings BV | NGD Holdings BV | NGD Holdings BV |
|  6.750% due 12/31/2026 | 188 | 87 |
|  Northwestern Bell Telephone | Northwestern Bell Telephone | Northwestern Bell Telephone |
|  7.750% due 05/01/2030 (m) | 7000 | 6633 |
|  Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) |
|  7.350% due 12/01/2026 ^(b) | 155 | 86 |
|  Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) |
|  7.720% due 12/01/2026 ^(b) | 3322 | 889 |
|  Oi SA | Oi SA | Oi SA |
|  10.000% due 07/27/2025 | 13514 | 2335 |
|  Pacific Gas & Electric Co. | Pacific Gas & Electric Co. | Pacific Gas & Electric Co. |
|  3.750% due 08/15/2042 | 10 | 7 |
|  4.000% due 12/01/2046 (m) | 1004 | 676 |
|  4.200% due 03/01/2029 (m) | 900 | 805 |
|  4.300% due 03/15/2045 | 11 | 8 |
|  4.450% due 04/15/2042 | 322 | 241 |
|  4.500% due 12/15/2041 | 10 | 7 |
|  4.600% due 06/15/2043 | 8 | 6 |
|  4.750% due 02/15/2044 (m) | 2810 | 2161 |
|  4.950% due 07/01/2050 (m) | 2360 | 1838 |
|  Peru LNG SRL | Peru LNG SRL | Peru LNG SRL |
|  5.375% due 03/22/2030 | 4800 | 4016 |
|  Rio Oil Finance Trust | Rio Oil Finance Trust | Rio Oil Finance Trust |
|  9.250% due 07/06/2024 (m) | 1184 | 1202 |
|  |  | 23736 |
|  Total Corporate Bonds & Notes (Cost $181,224) | Total Corporate Bonds & Notes (Cost $181,224) | &nbsp;&nbsp;&nbsp;&nbsp;151606 |
| CONVERTIBLE BONDS & NOTES 0.4% | CONVERTIBLE BONDS & NOTES 0.4% | CONVERTIBLE BONDS & NOTES 0.4% |
| INDUSTRIALS 0.4% | INDUSTRIALS 0.4% | INDUSTRIALS 0.4% |
|  DISH Network Corp. | DISH Network Corp. | DISH Network Corp. |
|  3.375% due 08/15/2026 | 1600 | 1006 |
|  Total Convertible Bonds & Notes (Cost $1,600) | Total Convertible Bonds & Notes (Cost $1,600) | 1006 |
| MUNICIPAL BONDS & NOTES 1.6% | MUNICIPAL BONDS & NOTES 1.6% | MUNICIPAL BONDS & NOTES 1.6% |
| ILLINOIS 0.7% | ILLINOIS 0.7% | ILLINOIS 0.7% |
|  Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 | Chicago, Illinois General Obligation Bonds, (BABs), Series 2010 |
|  7.517% due 01/01/2040 | 1800 | 1900 |
|  Chicago, Illinois General Obligation Bonds, Series 2017 | Chicago, Illinois General Obligation Bonds, Series 2017 | Chicago, Illinois General Obligation Bonds, Series 2017 |
|  7.045% due 01/01/2029 | 45 | 45 |
|  |  | 1945 |
| PUERTO RICO 0.4% | PUERTO RICO 0.4% | PUERTO RICO 0.4% |
|  Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 |
|  0.000% due 11/01/2043 (f) | 316 | 139 |
|  0.000% due 11/01/2051 (f) | 3260 | 1100 |
|  |  | 1239 |

---

---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT<br>(000S) | MARKET<br>VALUE<br>(000S) |
| WEST VIRGINIA 0.5% | WEST VIRGINIA 0.5% | WEST VIRGINIA 0.5% |
|  Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 |
|  0.000% due 06/01/2047 (f) | 21900 | 1631 |
|  Total Municipal Bonds & Notes (Cost $5,692) | Total Municipal Bonds & Notes (Cost $5,692) | 4815 |
| U.S. GOVERNMENT AGENCIES 2.0% | U.S. GOVERNMENT AGENCIES 2.0% | U.S. GOVERNMENT AGENCIES 2.0% |
|  Fannie Mae | Fannie Mae | Fannie Mae |
|  1.661% due 02/25/2049 •(a) | 261 | 27 |
|  2.640% due 12/25/2040 •  | 132 | 115 |
|  3.500% due 12/25/2032 - 12/25/2049 (a) | 1615 | 188 |
|  4.000% due 11/25/2042 (a) | 780 | 107 |
|  10.139% due 07/25/2029 •  | 570 | 622 |
|  Freddie Mac | Freddie Mac | Freddie Mac |
|  0.700% due 11/25/2055 ~(a) | 16220 | 1038 |
|  1.760% due 11/15/2040 •  | 116 | 89 |
|  3.000% due 11/15/2033 (a) | 1177 | 80 |
|  5.992% due 11/25/2055 «~ | 3849 | 2366 |
|  11.939% due 12/25/2027 ~ | 1406 | 1412 |
|  Total U.S. Government Agencies (Cost $6,503) | Total U.S. Government Agencies (Cost $6,503) | &nbsp;&nbsp;&nbsp;&nbsp;6044 |
| NON-AGENCY MORTGAGE-BACKED SECURITIES 6.5% | NON-AGENCY MORTGAGE-BACKED SECURITIES 6.5% | NON-AGENCY MORTGAGE-BACKED SECURITIES 6.5% |
|  Banc of America Funding Trust | Banc of America Funding Trust | Banc of America Funding Trust |
|  6.000% due 08/25/2036 ^ | 427 | 376 |
|  BCAP LLC Trust | BCAP LLC Trust | BCAP LLC Trust |
|  3.082% due 03/27/2036 ~ | 656 | 473 |
|  4.611% due 03/26/2037 þ | 310 | 421 |
|  Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust |
|  3.580% due 09/25/2047 ^~ | 1817 | 955 |
|  3.586% due 11/25/2036 ^~ | 143 | 76 |
|  3.908% due 09/25/2035 ^~ | 119 | 71 |
|  4.709% due 06/25/2046 ^•  | 832 | 694 |
|  Bear Stearns Mortgage Funding Trust | Bear Stearns Mortgage Funding Trust | Bear Stearns Mortgage Funding Trust |
|  7.500% due 08/25/2036 þ | 46 | 46 |
|  CD Mortgage Trust | CD Mortgage Trust | CD Mortgage Trust |
|  5.688% due 10/15/2048 | 164 | 145 |
|  Chase Mortgage Finance Trust | Chase Mortgage Finance Trust | Chase Mortgage Finance Trust |
|  3.946% due 12/25/2035 ^~ | 2 | 2 |
|  6.000% due 02/25/2037 ^ | 298 | 123 |
|  6.000% due 07/25/2037 ^ | 200 | 98 |
|  6.250% due 10/25/2036 ^ | 548 | 242 |
|  Citicorp Mortgage Securities Trust | Citicorp Mortgage Securities Trust | Citicorp Mortgage Securities Trust |
|  5.500% due 04/25/2037 | 4 | 4 |
|  Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust |
|  6.480% due 12/10/2049 ~ | 185 | 30 |
|  Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust |
|  6.000% due 05/25/2036 ^ | 725 | 441 |
|  6.000% due 08/25/2037 ^~ | 362 | 217 |
|  Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust |
|  2.963% due 04/25/2036 ^~ | 173 | 144 |
|  4.739% due 05/25/2037 ^•  | 117 | 44 |
|  5.500% due 03/25/2035 | 98 | 45 |
|  5.500% due 12/25/2035 ^ | 847 | 481 |
|  5.750% due 01/25/2035 | 64 | 60 |
|  6.000% due 02/25/2035 | 116 | 88 |
|  6.000% due 08/25/2036 ^•  | 126 | 78 |
|  6.000% due 04/25/2037 ^ | 356 | 180 |
|  6.250% due 11/25/2036 ^ | 216 | 161 |
|  6.250% due 12/25/2036 ^•  | 620 | 287 |
|  6.500% due 08/25/2036 ^ | 185 | 66 |
|  Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust |
|  3.671% due 02/20/2035 ~ | 2 | 2 |
|  5.500% due 10/25/2035 ^ | 162 | 99 |
|  6.250% due 09/25/2036 ^ | 159 | 62 |
|  Deutsche Mortgage Securities, Inc. Mortgage Loan Trust | Deutsche Mortgage Securities, Inc. Mortgage Loan Trust | Deutsche Mortgage Securities, Inc. Mortgage Loan Trust |
|  6.339% due 06/25/2034 •  | 2030 | 1935 |
|  Eurosail PLC | Eurosail PLC | Eurosail PLC |
|  7.511% due 06/13/2045 ~ | 239 | 237 |
|  Freddie Mac | Freddie Mac | Freddie Mac |
|  11.728% due 11/25/2041 ~ | 1900 | 1626 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  GS Mortgage Securities Corp. | GS Mortgage Securities Corp. | GS Mortgage Securities Corp. |
|  7.736% due 08/15/2039 ~ | 550 | 555 |
|  GSR Mortgage Loan Trust | GSR Mortgage Loan Trust | GSR Mortgage Loan Trust |
|  6.000% due 02/25/2036 ^ | 1040 | 476 |
|  HarborView Mortgage Loan Trust | HarborView Mortgage Loan Trust | HarborView Mortgage Loan Trust |
|  3.275% due 07/19/2035 ^~ | 13 | 10 |
|  5.059% due 01/19/2035 •  | 23 | 21 |
|  IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust |
|  6.500% due 07/25/2037 ^ | 1623 | 527 |
|  Jackson Park Trust | Jackson Park Trust | Jackson Park Trust |
|  3.242% due 10/14/2039 ~ | 1033 | 747 |
|  JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust |
|  3.203% due 03/25/2036 ^~ | 379 | 313 |
|  3.699% due 03/25/2037 ^~ | 357 | 317 |
|  JP Morgan Mortgage Trust | JP Morgan Mortgage Trust | JP Morgan Mortgage Trust |
|  3.478% due 02/25/2036 ^~ | 89 | 66 |
|  3.850% due 01/25/2037 ^~ | 88 | 72 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  4.829% due 06/25/2047 •  | 450 | 402 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  2.736% due 03/25/2036 ^~ | 551 | 303 |
|  Morgan Stanley Capital Trust | Morgan Stanley Capital Trust | Morgan Stanley Capital Trust |
|  8.793% due 11/15/2034 ~ | 1200 | 1096 |
|  Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust |
|  5.962% due 06/25/2036 ^~ | 2126 | 651 |
|  Natixis Commercial Mortgage Securities Trust | Natixis Commercial Mortgage Securities Trust | Natixis Commercial Mortgage Securities Trust |
|  6.718% due 11/15/2034 •  | 1065 | 1024 |
|  Residential Asset Securitization Trust | Residential Asset Securitization Trust | Residential Asset Securitization Trust |
|  5.750% due 02/25/2036 ^ | 374 | 146 |
|  6.000% due 07/25/2037 ^ | 619 | 250 |
|  6.250% due 09/25/2037 ^ | 1160 | 467 |
|  Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust |
|  4.875% due 08/25/2036 ^~ | 36 | 33 |
|  6.000% due 09/25/2036 ^ | 49 | 37 |
|  6.000% due 06/25/2037 ^ | 603 | 449 |
|  Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust |
|  3.694% due 01/25/2036 ^~ | 428 | 269 |
|  4.022% due 11/25/2036 ^~ | 380 | 319 |
|  SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust |
|  2.278% due 04/25/2037 ^~ | 232 | 140 |
|  3.232% due 02/25/2037 ^~ | 39 | 34 |
|  WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust |
|  3.030% due 12/25/2046 •  | 161 | 150 |
|  3.211% due 02/25/2037 ^~ | 133 | 119 |
|  3.672% due 10/25/2036 ^~ | 194 | 168 |
|  Wells Fargo Mortgage-Backed Securities Trust | Wells Fargo Mortgage-Backed Securities Trust | Wells Fargo Mortgage-Backed Securities Trust |
|  6.000% due 06/25/2037 ^ | 16 | 14 |
|  Total Non-Agency Mortgage-Backed Securities (Cost $23,108) | Total Non-Agency Mortgage-Backed Securities (Cost $23,108) | 19184 |
| ASSET-BACKED SECURITIES 7.3% | ASSET-BACKED SECURITIES 7.3% | ASSET-BACKED SECURITIES 7.3% |
|  Adagio CLO DAC | Adagio CLO DAC | Adagio CLO DAC |
|  0.000% due 04/30/2031 ~ | 1750 | 489 |
|  Apidos CLO | Apidos CLO | Apidos CLO |
|  0.000% due 01/20/2031 ~ | 2200 | 733 |
|  Argent Securities Trust | Argent Securities Trust | Argent Securities Trust |
|  4.769% due 03/25/2036 ~ | 5977 | 3194 |
|  Asset-Backed Funding Certificates Trust | Asset-Backed Funding Certificates Trust | Asset-Backed Funding Certificates Trust |
|  4.539% due 10/25/2036 •  | 1368 | 1335 |
|  Avoca CLO DAC | Avoca CLO DAC | Avoca CLO DAC |
|  0.000% due 07/15/2032 ~ | 1070 | 657 |
|  Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust |
|  6.500% due 10/25/2036 ^ | 208 | 113 |
|  Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. |
|  3.998% due 07/05/2046 ~ | 85896 | 634 |
|  CIFC Funding Ltd. | CIFC Funding Ltd. | CIFC Funding Ltd. |
|  0.000% due 04/24/2030 ~ | 1200 | 276 |
|  0.000% due 10/22/2031 ~ | 1000 | 210 |
|  Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust |
|  4.539% due 12/25/2036 ~ | 2737 | 1144 |
|  Dryden CLO Ltd. | Dryden CLO Ltd. | Dryden CLO Ltd. |
|  0.000% due 07/17/2031 ~ | 5689 | 2725 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **63** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund | (Cont.) |

---

---

| | | | |
|:---|:---|:---|:---|
|  |  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Grosvenor Place CLO BV | Grosvenor Place CLO BV | Grosvenor Place CLO BV | Grosvenor Place CLO BV |
|  0.000% due 04/30/2029 ~ | EUR | 250 | 47 |
|  Jay Park CLO Ltd. | Jay Park CLO Ltd. | Jay Park CLO Ltd. | Jay Park CLO Ltd. |
|  0.000% due 10/20/2027 ~ | $| 2700 | 486 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  6.790% due 06/24/2046 þ |  | 209 | 225 |
|  Marlette Funding Trust | Marlette Funding Trust | Marlette Funding Trust | Marlette Funding Trust |
|  0.000% due 07/16/2029 «(f) |  | 6 | 483 |
|  0.000% due 03/15/2030 «(f) |  | 3 | 101 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  4.336% due 04/25/2037 ~ |  | 188 | 94 |
|  Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust |
|  4.629% due 04/25/2037 ~ |  | 2522 | 753 |
|  6.250% due 02/25/2037 ^~ |  | 206 | 97 |
|  Residential Asset Mortgage Products Trust | Residential Asset Mortgage Products Trust | Residential Asset Mortgage Products Trust | Residential Asset Mortgage Products Trust |
|  4.949% due 09/25/2036 •  |  | 111 | 104 |
|  Securitized Asset-Backed Receivables LLC Trust | Securitized Asset-Backed Receivables LLC Trust | Securitized Asset-Backed Receivables LLC Trust | Securitized Asset-Backed Receivables LLC Trust |
|  4.669% due 05/25/2036 •  |  | 4018 | 2188 |
|  SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust |
|  0.000% due 10/28/2029 «(f) |  | 1 | 764 |
|  SLM Student Loan Trust | SLM Student Loan Trust | SLM Student Loan Trust | SLM Student Loan Trust |
|  0.000% due 01/25/2042 «(f) |  | 2 | 684 |
|  SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC |
|  0.000% due 05/25/2040 (f) |  | 2100 | 213 |
|  0.000% due 09/25/2040 «(f) |  | 846 | 116 |
|  South Coast Funding Ltd. | South Coast Funding Ltd. | South Coast Funding Ltd. | South Coast Funding Ltd. |
|  5.192% due 08/10/2038 •  |  | 5398 | 424 |
|  Symphony CLO Ltd. | Symphony CLO Ltd. | Symphony CLO Ltd. | Symphony CLO Ltd. |
|  8.611% due 07/14/2026 •  |  | 1000 | 952 |
|  Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. |
|  4.912% due 08/05/2036 •  |  | 139 | 124 |
|  4.912% due 08/05/2036 ^~ |  | 2605 | 2325 |
|  Total Asset-Backed Securities (Cost $41,910) | Total Asset-Backed Securities (Cost $41,910) | Total Asset-Backed Securities (Cost $41,910) | &nbsp;&nbsp;&nbsp;&nbsp;21690 |
| SOVEREIGN ISSUES 1.7% |  |  |  |
|  Argentina Government International Bond | Argentina Government International Bond | Argentina Government International Bond | Argentina Government International Bond |
|  0.500% due 07/09/2030 þ |  | 1735 | 401 |
|  1.000% due 07/09/2029 |  | 366 | 98 |
|  1.400% due 03/25/2023 | ARS | 119242 | 362 |
|  1.500% due 07/09/2035 þ | $| 1948 | 441 |
|  1.500% due 07/09/2046 þ |  | 115 | 30 |
|  3.500% due 07/09/2041 þ |  | 2872 | 824 |
|  3.875% due 01/09/2038 þ |  | 6188 | 1970 |
|  15.500% due 10/17/2026 | ARS | 26000 | 20 |
|  Ghana Government International Bond  | Ghana Government International Bond  | Ghana Government International Bond  |  |
|  6.375% due 02/11/2027 ^(c) | $| 300 | 116 |
|  7.875% due 02/11/2035 ^(c) |  | 400 | 145 |
|  8.750% due 03/11/2061 ^(c) |  | 200 | 71 |
|  Provincia de Buenos Aires | Provincia de Buenos Aires | Provincia de Buenos Aires |  |
|  72.913% due 04/12/2025 | ARS | 217314 | 600 |
|  Venezuela Government International Bond | Venezuela Government International Bond | Venezuela Government International Bond | Venezuela Government International Bond |
|  8.250% due 10/13/2024 ^(c) | $| 12 | 1 |
|  9.250% due 09/15/2027 ^(c) |  | 151 | 14 |
|  Total Sovereign Issues (Cost $12,550) | Total Sovereign Issues (Cost $12,550) | Total Sovereign Issues (Cost $12,550) | 5093 |
|  |  | **SHARES** |  |
| COMMON STOCKS 4.5% |  |  |  |
| COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% |
|  Clear Channel Outdoor Holdings, Inc. (d) |  | 261329 | 275 |
|  iHeartMedia, Inc. 'A' (d) |  | 62317 | 382 |
|  iHeartMedia, Inc. 'B' «(d) |  | 48387 | 267 |
|  |  |  | 924 |
| CONSUMER STAPLES 0.0% |  |  |  |
|  Promotora de Informaciones SA |  | 130203 | 39 |

---

---

| | | |
|:---|:---|:---|
|  | SHARES | MARKET<br>VALUE<br>(000S) |
| ENERGY 0.1% | ENERGY 0.1% | ENERGY 0.1% |
|  Axis Energy Services 'A' «(d)(k) | 1253 | 44 |
|  Noble Corp. PLC (d) | 6668 | 251 |
|  |  | 295 |
| FINANCIALS 1.3% | FINANCIALS 1.3% | FINANCIALS 1.3% |
|  Banca Monte dei Paschi di Siena SpA (d) | 523500 | 1079 |
|  Intelsat SA «(d)(k) | 113460 | 2723 |
|  |  | 3802 |
| INDUSTRIALS 2.8% | INDUSTRIALS 2.8% | INDUSTRIALS 2.8% |
|  Neiman Marcus Group Ltd. <br>LLC «(d)(k) | 39846 | 7015 |
|  Syniverse Holdings, Inc. «(k) | 1089841 | 1047 |
|  Voyager Aviation Holdings LLC «(d) | 538 | 0 |
|  Westmoreland Mining <br>Holdings «(d)(k) | 25438 | 191 |
|  |  | 8253 |
|  Total Common Stocks (Cost $16,030) | Total Common Stocks (Cost $16,030) | &nbsp;&nbsp;&nbsp;&nbsp;13313 |
| RIGHTS 0.0% | RIGHTS 0.0% | RIGHTS 0.0% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Jackson Holdings SA «(d) | 11974 | 81 |
|  Total Rights (Cost $0) | Total Rights (Cost $0) | 81 |
| WARRANTS 1.9% | WARRANTS 1.9% | WARRANTS 1.9% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Emergence SA - Exp. 02/17/2027 « | 277 | 1 |
|  Intelsat Jackson Holdings SA-Exp. 12/05/2025 « | 11872 | 89 |
|  |  | 90 |
| INFORMATION TECHNOLOGY 1.9% | INFORMATION TECHNOLOGY 1.9% | INFORMATION TECHNOLOGY 1.9% |
|  Windstream Holdings LLC - Exp. 9/21/2055 « | 272031 | 5507 |
|  Total Warrants (Cost $4,520) | Total Warrants (Cost $4,520) | 5597 |
| PREFERRED SECURITIES 2.3% | PREFERRED SECURITIES 2.3% | PREFERRED SECURITIES 2.3% |
| BANKING & FINANCE 2.0% | BANKING & FINANCE 2.0% | BANKING & FINANCE 2.0% |
|  Brighthouse Holdings LLC | Brighthouse Holdings LLC | Brighthouse Holdings LLC |
|  6.500% due 07/27/2037 þ(i) | 35000 | 31 |
|  Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten |
|  6.500% due 12/29/2049 þ(i) | 5760000 | 5930 |
|  |  | 5961 |
| INDUSTRIALS 0.3% | INDUSTRIALS 0.3% | INDUSTRIALS 0.3% |
|  Voyager Aviation Holdings LLC « | 3228 | 866 |
|  Total Preferred Securities (Cost $9,224) | Total Preferred Securities (Cost $9,224) | 6827 |
| REAL ESTATE INVESTMENT TRUSTS 0.8% | REAL ESTATE INVESTMENT TRUSTS 0.8% | REAL ESTATE INVESTMENT TRUSTS 0.8% |
| REAL ESTATE 0.8% | REAL ESTATE 0.8% | REAL ESTATE 0.8% |
|  CBL & Associates Properties, Inc. | 9309 | 215 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **SHARES** | **SHARES** | **MARKET<br>VALUE<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Uniti Group, Inc. |  | 133286 | $— | 737 |
|  VICI Properties, Inc. |  | 45844 |  | 1485 |
|  Total Real Estate Investment Trusts<br>(Cost $1,281) | Total Real Estate Investment Trusts<br>(Cost $1,281) | Total Real Estate Investment Trusts<br>(Cost $1,281) |  | 2437 |
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **PRINCIPAL<br>AMOUNT<br>(000S)** |  |  |
| SHORT-TERM INSTRUMENTS 24.8% | SHORT-TERM INSTRUMENTS 24.8% | SHORT-TERM INSTRUMENTS 24.8% | SHORT-TERM INSTRUMENTS 24.8% | SHORT-TERM INSTRUMENTS 24.8% |
| REPURCHASE AGREEMENTS (l) 21.0% | REPURCHASE AGREEMENTS (l) 21.0% | REPURCHASE AGREEMENTS (l) 21.0% | REPURCHASE AGREEMENTS (l) 21.0% | REPURCHASE AGREEMENTS (l) 21.0% |
|  |  |  |  | 62195 |
| SHORT-TERM NOTES 3.0% | SHORT-TERM NOTES 3.0% | SHORT-TERM NOTES 3.0% | SHORT-TERM NOTES 3.0% | SHORT-TERM NOTES 3.0% |
|  Federal Home Loan Bank | Federal Home Loan Bank | Federal Home Loan Bank | Federal Home Loan Bank | Federal Home Loan Bank |
|  4.320% due 01/06/2023 •  | $— | 3000 |  | 3000 |
|  4.340% due 02/10/2023 •(o) |  | 2900 |  | 2900 |
|  4.345% due 02/23/2023 •  |  | 2900 |  | 2900 |
|  |  |  |  | 8800 |
| ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% | ARGENTINA TREASURY BILLS 0.1% |
|  19.435% due<br>05/19/2023 (f)(g)(h) |  | 90531 |  | 275 |
| U.S. TREASURY BILLS 0.7% | U.S. TREASURY BILLS 0.7% | U.S. TREASURY BILLS 0.7% | U.S. TREASURY BILLS 0.7% | U.S. TREASURY BILLS 0.7% |
|  3.848% due 01/05/2023 - 03/02/2023 (e)(f)(q) | $— | 2114 |  | 2109 |
| Total Short-Term Instruments<br>(Cost $73,419) | Total Short-Term Instruments<br>(Cost $73,419) | Total Short-Term Instruments<br>(Cost $73,419) |  | 73379 |
| Total Investments in Securities<br>(Cost $503,877) | Total Investments in Securities<br>(Cost $503,877) | Total Investments in Securities<br>(Cost $503,877) |  | 420231 |
| Total Investments 141.8%<br>(Cost $503,877) | Total Investments 141.8%<br>(Cost $503,877) | Total Investments 141.8%<br>(Cost $503,877) | $— | 420231 |
|  Financial Derivative <br>Instruments (n)(p) (0.3)%<br> (Cost or Premiums, net $(2170)) | Financial Derivative <br>Instruments (n)(p) (0.3)%<br> (Cost or Premiums, net $(2170)) | Financial Derivative <br>Instruments (n)(p) (0.3)%<br> (Cost or Premiums, net $(2170)) |  | (793) |
| Auction-Rate Preferred Shares (15.2)% | Auction-Rate Preferred Shares (15.2)% | Auction-Rate Preferred Shares (15.2)% |  | (45200) |
| Other Assets and Liabilities, net (26.3)% | Other Assets and Liabilities, net (26.3)% | Other Assets and Liabilities, net (26.3)% |  | (77812) |
| Net Assets Applicable to Common Shareholders 100.0% | Net Assets Applicable to Common Shareholders 100.0% | Net Assets Applicable to Common Shareholders 100.0% | $— | &nbsp;&nbsp;&nbsp;&nbsp;296426 |

---

---

| | | |
|:---|:---|:---|
| 64.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

#### NOTES TO SCHEDULE OF INVESTMENTS:
\* A zero balance may reflect actual amounts rounding to less than one thousand. 

---

| | |
|:---|:---|
| ^ | Security is in default.  |

---

---

| | |
|:---|:---|
| « | Security valued using significant unobservable inputs (Level 3).  |

---

---

| | |
|:---|:---|
| µ | All or a portion of this amount represents unfunded loan commitments. The interest rate for the unfunded portion will be determined at the time of funding. See Note 4, Securities and Other Investments, in the Notes to Financial Statements for more information regarding unfunded loan commitments.  |

---

---

| | |
|:---|:---|
| ~ | Variable or Floating rate security. Rate shown is the rate in effect as of period end. Certain variable rate securities are not based on a published reference rate and spread, rather are determined by the issuer or agent and are based on current market conditions. Reference rate is as of reset date, which may vary by security. These securities may not indicate a reference rate and/or spread in their description.  |

---

• Rate shown is the rate in effect as of period end. The rate may be based on a fixed rate, a capped rate or a floor rate and may convert to a variable or floating rate in the future. These securities do not indicate a reference rate and spread in their description. 

---

| | |
|:---|:---|
| þ | Coupon represents a rate which changes periodically based on a predetermined schedule or event. Rate shown is the rate in effect as of period end.  |

---

(a) Security is an Interest Only ("IO") or IO Strip. 

(b) Payment in-kind security. 

(c) Security is not accruing income as of the date of this report. 

(d) Security did not produce income within the last twelve months. 

(e) Coupon represents a weighted average yield to maturity. 

(f) Zero coupon security. 

(g) Coupon represents a yield to maturity. 

(h) Principal amount of security is adjusted for inflation. 

(i) Perpetual maturity; date shown, if applicable, represents next contractual call date. 

(j) Contingent convertible security. 

&nbsp;&nbsp;&nbsp;&nbsp;(k) RESTRICTED SECURITIES:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Issuer Description | Acquisition<br>Date | Cost | Market<br>Value | Market Value<br>as Percentage<br>of Net Assets<br>Applicable to<br>Common<br>Shareholders |
|  Axis Energy Services 'A' | 07/01/2021 | $19 | $44 | 0.02% |
|  Intelsat SA | 06/19/2017 - 02/23/2022 | 7942 | 2723 | 0.92 |
|  Neiman Marcus Group Ltd. LLC | 09/25/2020 | 1307 | 7015 | 2.37 |
|  Syniverse Holdings, Inc. | 05/12/2022 - 11/30/2022 | 1069 | 1047 | 0.35 |
|  Westmoreland Mining Holdings | 12/08/2014 - 10/19/2016 | 733 | 191 | 0.06 |
|  |  | $&nbsp;&nbsp;&nbsp;&nbsp;11070 | $&nbsp;&nbsp;&nbsp;&nbsp;11020 | 3.72% |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS
&nbsp;&nbsp;&nbsp;&nbsp;(l) REPURCHASE AGREEMENTS:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Lending<br>Rate | Settlement<br>Date | Maturity<br>Date | Principal<br>Amount | Collateralized By | Collateral<br>(Received) | Repurchase<br>Agreements,<br>at Value | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> |
| FICC | 1.900% | 12/30/2022 | 01/03/2023 | $495 | U.S. Treasury Bills 0.000% due 06/29/2023 | $(505) | $495 | $495 |
| MBC | 4.320 | 12/30/2022 | 01/03/2023 | &nbsp;&nbsp;&nbsp;&nbsp;61700 | U.S. Treasury Bills 0.000% due 01/05/2023 | (63200) | 61700 | 61730 |
|  Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(63705) | $&nbsp;&nbsp;&nbsp;&nbsp;62195 | $&nbsp;&nbsp;&nbsp;&nbsp;62225 |

---

#### REVERSE REPURCHASE AGREEMENTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Counterparty | **Borrowing**<br> **Rate<sup>(2)</sup>** | **Settlement**<br> **Date** | **Maturity**<br> **Date** | **Amount<br>Borrowed<sup>(2)</sup>** | Payable for<br>Reverse<br>Repurchase<br>Agreements |
|  BPS | 0.000% | 11/15/2022 | 01/27/2023 | $(369) | $(369) |
|  | 0.000 | 11/15/2022 | 01/30/2023 | (816) | (816) |
|  | 3.550 | 08/09/2022 | 02/02/2023 | (1533) | (1556) |
|  | 3.550 | 08/18/2022 | 02/02/2023 | (1971) | (1998) |
|  | 3.760 | 08/12/2022 | 02/13/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(1981) | (2011) |
|  | 3.760 | 08/30/2022 | 02/13/2023 | (852) | (864) |
|  | 3.760 | 10/04/2022 | 02/13/2023 | (5387) | &nbsp;&nbsp;&nbsp;&nbsp;(5438) |
|  | 3.760 | 10/06/2022 | 02/13/2023 | (1021) | (1030) |
|  | 3.760 | 10/07/2022 | 02/13/2023 | (545) | (550) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **65** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund | (Cont.) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Borrowing**<br> **Rate<sup>(2)</sup>** | **Settlement**<br> **Date** | **Maturity**<br> **Date** | **Amount<br>Borrowed<sup>(2)</sup>** | **Payable for<br>Reverse<br>Repurchase<br>Agreements** |
|  | 4.220 | 11/14/2022 | 03/14/2023 | $(575) | $(579) |
|  | 4.720 | 10/27/2022 | 01/30/2023 | (718) | (724) |
|  | 4.720 | 10/28/2022 | 01/31/2023 | (437) | (441) |
|  | 4.720 | 11/29/2022 | 01/30/2023 | (744) | (748) |
|  | 4.720 | 12/14/2022 | 01/30/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(1699) | &nbsp;&nbsp;&nbsp;&nbsp;(1704) |
|  BYR | 4.950 | 09/26/2022 | 03/24/2023 | (1362) | (1373) |
|  CDC | 3.270 | 08/04/2022 | 01/09/2023 | (3088) | (3130) |
|  | 3.990 | 10/27/2022 | 03/03/2023 | (541) | (545) |
|  | 3.990 | 11/03/2022 | 03/03/2023 | (409) | (412) |
|  | 4.450 | 10/31/2022 | 01/30/2023 | (566) | (570) |
|  | 4.600 | 11/18/2022 | 01/17/2023 | (1330) | (1338) |
|  | 4.620 | 10/14/2022 | 02/13/2023 | (1782) | (1801) |
|  | 4.620 | 11/15/2022 | 02/13/2023 | (380) | (382) |
|  | 4.620 | 12/22/2022 | 02/13/2023 | (359) | (360) |
|  | 4.730 | 10/31/2022 | 01/30/2023 | (5086) | (5129) |
|  | 4.730 | 12/14/2022 | 01/30/2023 | (705) | (706) |
|  | 4.760 | 10/07/2022 | 04/05/2023 | (2887) | (2921) |
|  | 4.860 | 11/07/2022 | 02/07/2023 | (6639) | (6690) |
|  | 4.880 | 11/16/2022 | 02/07/2023 | (1121) | (1129) |
|  | 4.880 | 12/14/2022 | 02/07/2023 | (2490) | (2497) |
|  IND | 4.530 | 11/08/2022 | 01/31/2023 | (506) | (510) |
|  | 4.660 | 10/25/2022 | 01/31/2023 | (4017) | (4053) |
|  | 4.740 | 11/07/2022 | 01/31/2023 | (1122) | (1130) |
|  | 4.980 | 11/07/2022 | 03/07/2023 | (6061) | (6109) |
|  | 5.000 | 11/07/2022 | 03/07/2023 | (716) | (721) |
|  JML | 1.500 | 09/14/2022 | TBD<sup>(3)</sup> | (339) | (363) |
|  | 2.050 | 09/14/2022 | TBD<sup>(3)</sup> | (518) | (556) |
|  | 2.070 | 09/14/2022 | TBD<sup>(3)</sup> | (1229) | (1319) |
|  MBC | 2.050 | 11/02/2022 | TBD<sup>(3)</sup> | (3062) | (3286) |
|  MEI | 3.860 | 10/11/2022 | 02/28/2023 | $(354) | (357) |
|  | 3.860 | 10/17/2022 | 02/28/2023 | (583) | (588) |
|  | 4.700 | 11/04/2022 | 02/13/2023 | (388) | (392) |
|  | 4.700 | 11/14/2022 | 02/13/2023 | (193) | (194) |
|  | 4.720 | 10/24/2022 | 01/27/2023 | (1214) | (1225) |
|  RDR | 4.430 | 10/26/2022 | 01/30/2023 | (1005) | (1013) |
|  | 4.500 | 10/31/2022 | 01/30/2023 | (1343) | (1353) |
|  | 4.700 | 11/10/2022 | 02/10/2023 | (1614) | (1625) |
|  SOG | 3.830 | 10/25/2022 | 02/17/2023 | (1584) | (1596) |
|  | 4.450 | 11/02/2022 | 02/06/2023 | (510) | (513) |
|  | 4.640 | 10/14/2022 | 02/14/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(3970) | (4011) |
|  | 4.760 | 10/12/2022 | 04/12/2023 | (813) | (822) |
|  | 4.790 | 11/04/2022 | 02/02/2023 | (699) | (704) |
|  | 4.820 | 11/30/2022 | 02/22/2023 | (611) | (614) |
|  | 4.900 | 10/12/2022 | 04/12/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(5171) | (5229) |
|  | 4.900 | 11/29/2022 | 04/12/2023 | (1461) | (1468) |
|  UBS | 4.840 | 11/02/2022 | 02/03/2023 | (442) | (446) |
|  Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(88008) |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS SUMMARY
The following is a summary by counterparty of the market value of Borrowings and Other Financing Transactions and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> | Payable for<br>Reverse<br>Repurchase<br>Agreements | Payable for<br>Sale-Buyback<br>Transactions | Total<br>Borrowings and<br>Other Financing<br>Transactions | Collateral<br>Pledged/(Received) | Net Exposure<sup>(</sup><sup>4)</sup> |
|  Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement |
|  BPS | $0 | $(18828) | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;(18828) | $&nbsp;&nbsp;&nbsp;&nbsp;22457 | $3629 |
|  BYR | 0 | (1373) | 0 | (1373) | 1533 | 160 |
|  CDC | 0 | (27610) | 0 | (27610) | 31739 | 4129 |
|  FICC | 495 | 0 | 0 | 495 | (505) | (10) |
|  IND | 0 | (12523) | 0 | (12523) | 13964 | 1441 |
|  JML | 0 | (2238) | 0 | (2238) | 2389 | 151 |
|  MBC | 61730 | (3286) | 0 | 58444 | (59530) | &nbsp;&nbsp;&nbsp;&nbsp;(1086) |
|  MEI | 0 | (2756) | 0 | (2756) | 3671 | 915 |
|  RDR | 0 | (3991) | 0 | (3991) | 4107 | 116 |
|  SOG | 0 | (14957) | 0 | (14957) | 17085 | 2128 |
|  UBS | 0 | (446) | 0 | (446) | 581 | 135 |
|  Total Borrowings and Other Financing Transactions | $&nbsp;&nbsp;&nbsp;&nbsp;62225 | $&nbsp;&nbsp;&nbsp;&nbsp;(88008) | $&nbsp;&nbsp;&nbsp;&nbsp;0 |  |  |  |

---

---

| | | |
|:---|:---|:---|
| 66.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

#### CERTAIN TRANSFERS ACCOUNTED FOR AS SECURED BORROWINGS

#### Remaining Contractual Maturity of the Agreements

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Overnight and<br>Continuous | Up to 30 days | 31-90 days | Greater Than 90 days | Total |
|  Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements |
|  Corporate Bonds & Notes | $0 | $(18825) | $(53219) | $(15964) | $(88008) |
|  Total Borrowings | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(18825) | $&nbsp;&nbsp;&nbsp;&nbsp;(53219) | $&nbsp;&nbsp;&nbsp;&nbsp;(15964) | $(88008) |
|  Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | $&nbsp;&nbsp;&nbsp;&nbsp;(88008) |

---

(m) Securities with an aggregate market value of $102,773 and cash of $72 have been pledged as collateral under the terms of the above master agreements as of December 31, 2022. 

<sup>(1)</sup> Includes accrued interest. 

<sup>(2)</sup> The average amount of borrowings outstanding during the period ended December 31, 2022 was $(91184) at a weighted average interest rate of 2.940%. Average borrowings may include reverse repurchase agreements and sale-buyback transactions, if held during the period. 

<sup>(3)</sup> Open maturity reverse repurchase agreement. 

<sup>(4)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from borrowings and other financing transactions can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

&nbsp;&nbsp;&nbsp;&nbsp;(n) FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Reference Entity** | Fixed<br>Receive Rate | Payment<br>Frequency | Maturity<br>Date | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Market<br>Value<sup>(4)</sup> | Variation Margin | Variation Margin |
| **Reference Entity** | Fixed<br>Receive Rate | Payment<br>Frequency | Maturity<br>Date | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Market<br>Value<sup>(4)</sup> | Asset | Liability |
|  Bombardier, Inc. | 5.000% | Quarterly | 06/20/2024 | 2.622% | $1900 | $(89) | $156 | $67 | $0 | $(4) |
|  Bombardier, Inc. | 5.000 | Quarterly | 12/20/2024 | 2.780 | 700 | (3) | 33 | 30 | 0 | 0 |
|  Bombardier, Inc. | 5.000 | Quarterly | 06/20/2027 | 4.245 | 1300 | (105) | 143 | 38 | 0 | (1) |
|  Jaguar Land Rover Automotive | 5.000 | Quarterly | 06/20/2026 | 9.564 | 200 | 14 | (39) | (25) | 0 | 0 |
|  Jaguar Land Rover Automotive | 5.000 | Quarterly | 12/20/2026 | 9.896 | 1986 | 76 | &nbsp;&nbsp;&nbsp;&nbsp;(373) | (297) | 2 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 12/20/2025 | 2.767 | 4200 | (459) | 244 | (215) | 0 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 06/20/2027 | 3.357 | 1400 | (106) | (29) | (135) | 0 | (1) |
|  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(672) | $135 | $&nbsp;&nbsp;&nbsp;&nbsp;(537) | $&nbsp;&nbsp;&nbsp;&nbsp;2 | $&nbsp;&nbsp;&nbsp;&nbsp;(6) |

---

#### INTEREST RATE SWAPS

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | Variation Margin | Variation Margin |
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value** | Asset | Liability |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750% | Annual | 09/21/2032 | 7300 | $709 | $1451 | $2160 | $6 | $0 |
|  Receive<sup>(5)</sup> | 1-Day GBP-SONIO Compounded-OIS | 2.000 | Annual | 03/15/2033 | 3700 | 412 | 218 | 630 | 2 | 0 |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750 | Annual | 09/21/2052 | 300 | (1) | 181 | 180 | 0 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.450 | Annual | 12/20/2024 | $12700 | (1) | 190 | 189 | 7 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.350 | Annual | 01/17/2025 | 6400 | 1 | 94 | 95 | 2 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.300 | Annual | 01/17/2026 | 1000 | 0 | 24 | 24 | 1 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2029 | 61800 | &nbsp;&nbsp;&nbsp;&nbsp;(6367) | 326 | (6041) | 28 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2032 | 12500 | (1710) | 75 | (1635) | 0 | (36) |
|  Pay | 3-Month USD-LIBOR | 2.750 | Semi-Annual | 06/17/2025 | 43420 | 2555 | (4376) | (1821) | 0 | (64) |
|  Pay | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 06/15/2026 | 15300 | 723 | (1713) | (990) | 0 | (25) |
|  Receive | 3-Month USD-LIBOR | 1.350 | Semi-Annual | 01/20/2027 | 4900 | 0 | 516 | 516 | 7 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.550 | Semi-Annual | 01/20/2027 | 21600 | (75) | (2020) | (2095) | 0 | (29) |
|  Receive | 3-Month USD-LIBOR | 1.360 | Semi-Annual | 02/15/2027 | 2730 | 0 | 286 | 286 | 4 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.600 | Semi-Annual | 02/15/2027 | 10900 | (38) | (997) | (1035) | 0 | (16) |
|  Receive | 3-Month USD-LIBOR | 1.450 | Semi-Annual | 02/17/2027 | 4500 | 0 | 455 | 455 | 7 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.700 | Semi-Annual | 02/17/2027 | 18000 | (68) | (1566) | (1634) | 0 | (27) |
|  Pay | 3-Month USD-LIBOR | 2.500 | Semi-Annual | 12/20/2027 | 28100 | 200 | (2145) | (1945) | 0 | (48) |
|  Receive | 3-Month USD-LIBOR | 1.420 | Semi-Annual | 08/17/2028 | 15100 | 0 | 1942 | 1942 | 28 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.380 | Semi-Annual | 08/24/2028 | 16100 | 0 | 2103 | 2103 | &nbsp;&nbsp;&nbsp;&nbsp;31 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.000 | Semi-Annual | 06/19/2029 | 49900 | 2148 | &nbsp;&nbsp;&nbsp;&nbsp;(4829) | &nbsp;&nbsp;&nbsp;&nbsp;(2681) | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(108) |
|  Receive | 3-Month USD-LIBOR | 1.160 | Semi-Annual | 04/12/2031 | 1400 | 0 | 276 | 276 | 3 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.380 | Semi-Annual | 04/12/2031 | 7000 | (19) | (1249) | (1268) | 0 | (15) |
|  Receive | 3-Month USD-LIBOR | 0.750 | Semi-Annual | 06/16/2031 | 36300 | 3000 | 5181 | 8181 | 68 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 12/15/2031 | 20100 | (318) | 3539 | 3221 | 38 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.500 | Semi-Annual | 06/19/2044 | 83100 | (2711) | 446 | (2265) | 62 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.000 | Semi-Annual | 01/15/2050 | 3200 | (23) | 897 | 874 | 15 | 0 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **67** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund | (Cont.) |

---

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Premiums<br>Paid/(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value** | **Variation Margin** | **Variation Margin** |
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | **Notional<br>Amount** | **Premiums<br>Paid/(Received)** | **Unrealized<br>Appreciation/<br>(Depreciation)** | **Market<br>Value** | **Asset** | **Liability** |
|  Receive | 3-Month USD-LIBOR | 1.750% | Semi-Annual | 01/22/2050 | $8400 | $(19) | $2690 | $2671 | $39 | $0 |
|  Receive | 3-Month USD-LIBOR | 1.875 | Semi-Annual | 02/07/2050 | 8800 | (34) | 2634 | 2600 | 42 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 03/12/2050 | 1700 | (5) | 390 | 385 | 9 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.150 | Semi-Annual | 12/11/2050 | 91100 | 52 | 38567 | 38619 | 0 | (93) |
|  Pay | 6-Month AUD-BBR-BBSW | 3.500 | Semi-Annual | 06/17/2025 | 3900 | 97 | (141) | (44) | 0 | (1) |
|  Receive | 6-Month EUR-EURIBOR | 0.150 | Annual | 03/18/2030 | 3400 | 62 | 734 | 796 | 13 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 0.250 | Annual | 09/21/2032 | 3600 | 326 | 633 | 959 | 17 | 0 |
|  Receive<sup>(5)</sup> | 6-Month EUR-EURIBOR | 0.830 | Annual | 12/09/2052 | 4600 | 11 | 137 | 148 | 6 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.675 | Lunar | 04/03/2024 | 100 | 0 | 0 | 0 | 0 | 0 |
|  |  |  |  |  |  | $(1093) | $44949 | $43856 | $435 | $(462) |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(1765) | $&nbsp;&nbsp;&nbsp;&nbsp;45084 | $&nbsp;&nbsp;&nbsp;&nbsp;43319 | $&nbsp;&nbsp;&nbsp;&nbsp;437 | $&nbsp;&nbsp;&nbsp;&nbsp;(468) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED SUMMARY
The following is a summary of the market value and variation margin of Exchange-Traded or Centrally Cleared Financial Derivative Instruments as of December 31, 2022:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities |
|  | Market Value | Variation Margin<br>Asset | Variation Margin<br>Asset | | Market Value | Variation Margin<br>Liability | Variation Margin<br>Liability | |
|  | Purchased<br>Options | Futures | Swap<br>Agreements | Total | Written<br>Options | Futures | Swap<br>Agreements | Total |
|  Total Exchange-Traded or Centrally Cleared | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;437 | $&nbsp;&nbsp;&nbsp;&nbsp;437 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(468) | $&nbsp;&nbsp;&nbsp;&nbsp;(468) |

---

(o) Securities with an aggregate market value of $925 and cash of $14,433 have been pledged as collateral for exchange-traded and centrally cleared financial derivative instruments as of December 31, 2022. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> This instrument has a forward starting effective date. See Note 2, Securities Transactions and Investment Income, in the Notes to Financial Statements for further information. 

&nbsp;&nbsp;&nbsp;&nbsp;(p) FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER

#### FORWARD FOREIGN CURRENCY CONTRACTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Counterparty | Settlement<br>Month | Currency to<br>be Delivered | Currency to<br>be Received | Unrealized Appreciation/<br>(Depreciation) | Unrealized Appreciation/<br>(Depreciation) |
| Counterparty | Settlement<br>Month | Currency to<br>be Delivered | Currency to<br>be Received | Asset | Liability |
|  BOA | 02/2023 | 972 | $1027 | $0 | $(30) |
|  | 02/2023 | 690 | 176 | 0 | (5) |
|  BPS | 01/2023 | $309 | 290 | 2 | 0 |
|  BRC | 02/2023 | 500 | $533 | 0 | (10) |
|  CBK | 01/2023 | 1134 | 282 | 0 | (16) |
|  | 02/2023 | 3440 | 637 | 0 | (11) |
|  | 03/2023 | 1070 | 277 | 0 | (3) |
|  | 05/2023 | 812 | 204 | 0 | (7) |
|  GLM | 03/2023 | 681 | 33 | 0 | (1) |
|  | 05/2023 | $881 | 3543 | &nbsp;&nbsp;&nbsp;&nbsp;43 | 0 |
|  JPM | 02/2023 | 134 | 2759 | 6 | 0 |
|  MBC | 01/2023 | 32033 | $33577 | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(727) |
|  | 01/2023 | 744 | 907 | 7 | 0 |
|  | 01/2023 | $168 | 158 | 1 | 0 |

---

---

| | | |
|:---|:---|:---|
| **68** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | **Unrealized Appreciation/<br>(Depreciation)** | **Unrealized Appreciation/<br>(Depreciation)** |
| **Counterparty** | **Settlement<br>Month** | **Currency to<br>be Delivered** | **Currency to<br>be Received** | **Asset** | **Liability** |
|  | 01/2023 | $355 | 292 | $0 | $(2) |
|  | 02/2023 | 657 | $496 | 10 | 0 |
|  RBC | 03/2023 | 11 | 1 | 0 | 0 |
|  Total Forward Foreign Currency Contracts | Total Forward Foreign Currency Contracts |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;69 | $&nbsp;&nbsp;&nbsp;&nbsp;(812) |

---

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Reference Entity | Fixed<br>Receive Rate | Payment<br>Frequency | Maturity<br>Date | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Swap Agreements,<br>at Value<sup>(4)</sup> | Swap Agreements,<br>at Value<sup>(4)</sup> |
| Counterparty | Reference Entity | Fixed<br>Receive Rate | Payment<br>Frequency | Maturity<br>Date | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Asset | Liability |
| BPS | Petrobras Global Finance BV | 1.000% | Quarterly | 12/20/2024 | 1.522% | $500 | $(98) | $93 | $0 | $(5) |
| GST | Petrobras Global Finance BV | 1.000 | Quarterly | 12/20/2024 | 1.522 | 700 | (139) | 132 | 0 | (7) |
| HUS | Petrobras Global Finance BV | 1.000 | Quarterly | 12/20/2024 | 1.522 | 800 | (166) | 159 | 0 | (7) |
| JPM | Banca Monte Dei Paschi Di | 5.000 | Quarterly | 06/20/2025 | 4.967 | 100 | (2) | 2 | 0 | 0 |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | $&nbsp;&nbsp;&nbsp;&nbsp;(405) | $&nbsp;&nbsp;&nbsp;&nbsp;386 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(19) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER SUMMARY
The following is a summary by counterparty of the market value of OTC financial derivative instruments and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | | | |
| Counterparty | Forward<br>Foreign<br>Currency<br>Contracts | Purchased<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Forward<br>Foreign<br>Currency<br>Contracts | Written<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Net Market<br>Value of OTC<br>Derivatives | **Collateral<br>Pledged/<br>(Received)** | Net<br>Exposure<sup>(5)</sup> |
|  BOA | $0 | $0 | $0 | $0 | $(35) | $0 | $0 | $(35) | $(35) | $23 | $(12) |
|  BPS | 2 | 0 | 0 | 2 | 0 | 0 | (5) | (5) | (3) | 0 | (3) |
|  BRC | 0 | 0 | 0 | 0 | (10) | 0 | 0 | (10) | (10) | 0 | (10) |
|  CBK | 0 | 0 | 0 | 0 | (37) | 0 | 0 | (37) | (37) | 0 | (37) |
|  GLM | 43 | 0 | 0 | 43 | (1) | 0 | 0 | (1) | 42 | 0 | 42 |
|  GST | 0 | 0 | 0 | 0 | 0 | 0 | (7) | (7) | (7) | 90 | 83 |
|  HUS | 0 | 0 | 0 | 0 | 0 | 0 | (7) | (7) | (7) | 0 | (7) |
|  JPM | 6 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 6 | 0 | 6 |
|  MBC | 18 | 0 | 0 | 18 | (729) | 0 | 0 | (729) | &nbsp;&nbsp;&nbsp;&nbsp;(711) | &nbsp;&nbsp;&nbsp;&nbsp;562 | &nbsp;&nbsp;&nbsp;&nbsp;(149) |
|  Total Over the Counter | $&nbsp;&nbsp;&nbsp;&nbsp;69 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;69 | $&nbsp;&nbsp;&nbsp;&nbsp;(812) | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(19) | $&nbsp;&nbsp;&nbsp;&nbsp;(831) |  |  |  |

---

(q) Securities with an aggregate market value of $675 have been pledged as collateral for financial derivative instruments as governed by International Swaps and Derivatives Association, Inc. master agreements as of December 31, 2022. 

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from OTC financial derivative instruments can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **69** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund | (Cont.) |

---

#### FAIR VALUE OF FINANCIAL DERIVATIVE INSTRUMENTS
The following is a summary of the fair valuation of the Fund's derivative instruments categorized by risk exposure. See Note 7, Principal and Other Risks, in the Notes to Financial Statements on risks of the Fund.

Fair Values of Financial Derivative Instruments on the Statements of Assets and Liabilities as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $2 | $0 | $0 | $435 | $437 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $69 | $0 | $69 |
|  | $0 | $2 | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;69 | $435 | $506 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;6 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;462 | $&nbsp;&nbsp;&nbsp;&nbsp;468 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $812 | $0 | $812 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 19 | 0 | 0 | 0 | 19 |
|  | $0 | $19 | $0 | $812 | $0 | $831 |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;25 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;812 | $&nbsp;&nbsp;&nbsp;&nbsp;462 | $&nbsp;&nbsp;&nbsp;&nbsp;1299 |

---

The effect of Financial Derivative Instruments on the Statements of Operations for the period ended December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $199 | $0 | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;2328 | $&nbsp;&nbsp;&nbsp;&nbsp;2527 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $0 | $0 | $2661 | $0 | $2661 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 13 | 0 | 0 | 0 | 13 |
|  | $0 | $13 | $0 | $2661 | $0 | $2674 |
|  | $0 | $212 | $0 | $2661 | $2328 | $5201 |
|  Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;794 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $0 | $(726) | $68 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $(2304) | $0 | $(2304) |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 47 | 0 | 0 | 0 | 47 |
|  | $0 | $47 | $0 | $(2304) | $0 | $(2257) |
|  | $0 | $841 | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;(2304) | $(726) | $(2189) |

---

#### FAIR VALUE MEASUREMENTS
The following is a summary of the fair valuations according to the inputs used as of December 31, 2022 in valuing the Fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Category and Subcategory | Level 1 | Level 2 | Level 3 | **Fair**<br> **Value at<br>12/31/2022** |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;88693 | $&nbsp;&nbsp;&nbsp;&nbsp;20466 | $&nbsp;&nbsp;&nbsp;&nbsp;109159 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Banking & Finance | 0 | 34138 | 0 | 34138 |
| &nbsp;&nbsp; Industrials | 0 | 93732 | 0 | 93732 |
| &nbsp;&nbsp; Utilities | 0 | 23736 | 0 | 23736 |
|  Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes |
| &nbsp;&nbsp; Industrials | 0 | 1006 | 0 | 1006 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Level 1** | **Level 2** | **Level 3** | **Fair**<br> **Value at<br>12/31/2022** |
|  Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes |
| &nbsp;&nbsp; Illinois | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $1945 | $0 | $1945 |
| &nbsp;&nbsp; Puerto Rico | 0 | 1239 | 0 | 1239 |
| &nbsp;&nbsp; West Virginia | 0 | 1631 | 0 | 1631 |
|  U.S. Government Agencies | 0 | 3678 | 2366 | 6044 |
|  Non-Agency Mortgage-Backed Securities | 0 | 19184 | 0 | 19184 |
|  Asset-Backed Securities | 0 | &nbsp;&nbsp;&nbsp;&nbsp;19542 | &nbsp;&nbsp;&nbsp;&nbsp;2148 | &nbsp;&nbsp;&nbsp;&nbsp;21690 |
|  Sovereign Issues | 0 | 5093 | 0 | 5093 |

---

---

| | | |
|:---|:---|:---|
| **70** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Level 1** | **Level 2** | **Level 3** | **Fair**<br> **Value at<br>12/31/2022** |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | $657 | $0 | $267 | $924 |
| &nbsp;&nbsp; Consumer Staples | 39 | 0 | 0 | 39 |
| &nbsp;&nbsp; Energy | 251 | 0 | 44 | 295 |
| &nbsp;&nbsp; Financials | &nbsp;&nbsp;&nbsp;&nbsp;1079 | 0 | 2723 | 3802 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 8253 | 8253 |
|  Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 0 | 0 | 81 | 81 |
|  Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 0 | 0 | 90 | 90 |
| &nbsp;&nbsp; Information Technology | 0 | 0 | 5507 | 5507 |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Banking & Finance | 0 | 5961 | 0 | 5961 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 866 | 866 |
|  Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts |
| &nbsp;&nbsp; Real Estate | 2437 | 0 | 0 | 2437 |
|  Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments |
| &nbsp;&nbsp; Repurchase Agreements | 0 | 62195 | 0 | 62195 |
| &nbsp;&nbsp; Short-Term Notes | 0 | 8800 | 0 | 8800 |
| &nbsp;&nbsp; Argentina Treasury Bills | 0 | 275 | 0 | 275 |
| &nbsp;&nbsp; U.S. Treasury Bills | 0 | 2109 | 0 | 2109 |
|  Total Investments | $4463 | $&nbsp;&nbsp;&nbsp;&nbsp;372957 | $&nbsp;&nbsp;&nbsp;&nbsp;42811 | $&nbsp;&nbsp;&nbsp;&nbsp;420231 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| Category and Subcategory | Level 1 | Level 2 | Level 3 | **Fair**<br> **Value at<br>12/31/2022** |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | $0 | $437 | $0 | $437 |
|  Over the counter | 0 | 69 | 0 | 69 |
|  | $0 | $506 | $0 | $506 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | 0 | (468) | 0 | (468) |
|  Over the counter | 0 | (831) | 0 | (831) |
|  | $0 | $(1299) | $0 | $(1299) |
|  Total Financial Derivative Instruments | $0 | $(793) | $0 | $(793) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;4463 | $&nbsp;&nbsp;&nbsp;&nbsp;372164 | $&nbsp;&nbsp;&nbsp;&nbsp;42811 | $&nbsp;&nbsp;&nbsp;&nbsp;419438 |

---

The following is a reconciliation of the fair valuations using significant unobservable inputs (Level 3) for the Fund during the period ended December 31, 2022:

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Category and Subcategory | Beginning<br>Balance<br>at 06/30/2022 | Net<br>Purchases | Net<br>Sales/<br>Settlements | Accrued<br>Discounts/<br>(Premiums) | Realized<br>Gain/(Loss) | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<sup>(1)</sup> | Transfers into<br>Level 3 | Transfers out<br>of Level 3 | Ending<br>Balance<br>at 12/31/2022 | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<br>on Investments<br>Held at<br>12/31/2022<sup>(1)</sup> |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $&nbsp;&nbsp;&nbsp;&nbsp;24535 | $&nbsp;&nbsp;&nbsp;&nbsp;9591 | $&nbsp;&nbsp;&nbsp;&nbsp;(2866) | $&nbsp;&nbsp;&nbsp;&nbsp;(29) | $50 | $&nbsp;&nbsp;&nbsp;&nbsp;(1071) | $&nbsp;&nbsp;&nbsp;&nbsp;6278 | $&nbsp;&nbsp;&nbsp;&nbsp;(16022) | $&nbsp;&nbsp;&nbsp;&nbsp;20466 | $57 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Industrials | 17691 | 142 | 0 | 33 | 0 | (978) | 0 | (16888) | 0 | 0 |
|  U.S. Government Agencies | 2374 | 0 | (29) | 5 | 10 | 6 | 0 | 0 | 2366 | 5 |
|  Asset-Backed Securities | 2912 | 0 | (237) | 7 | &nbsp;&nbsp;&nbsp;&nbsp;(653) | 119 | 0 | 0 | 2148 | &nbsp;&nbsp;&nbsp;&nbsp;(531) |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | 343 | 0 | 0 | 0 | 0 | (76) | 0 | 0 | 267 | (76) |
| &nbsp;&nbsp; Energy | 19 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 44 | 25 |
| &nbsp;&nbsp; Financials | 3177 | 0 | 0 | 0 | 0 | (454) | 0 | 0 | 2723 | (454) |
| &nbsp;&nbsp; Industrials | 7887 | 70 | 0 | 0 | 0 | 296 | 0 | 0 | 8253 | 296 |
| &nbsp;&nbsp; Materials | 13 | 0 | (14) | 0 | 14 | (13) | 0 | 0 | 0 | 0 |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 57 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 81 | 24 |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 60 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 90 | 30 |
| &nbsp;&nbsp; Industrials | 236 | 0 | (48) | 0 | 48 | (236) | 0 | 0 | 0 | 0 |
| &nbsp;&nbsp; Information Technology | 5801 | 0 | 0 | 0 | 0 | (294) | 0 | 0 | 5507 | (294) |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Industrials | 15336 | 0 | (17589) | 0 | 9778 | (6659) | 0 | 0 | 866 | (110) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;80441 | $&nbsp;&nbsp;&nbsp;&nbsp;9803 | $&nbsp;&nbsp;&nbsp;&nbsp;(20783) | $&nbsp;&nbsp;&nbsp;&nbsp;16 | $&nbsp;&nbsp;&nbsp;&nbsp;9247 | $&nbsp;&nbsp;&nbsp;&nbsp;(9281) | $&nbsp;&nbsp;&nbsp;&nbsp;6278 | $&nbsp;&nbsp;&nbsp;&nbsp;(32910) | $&nbsp;&nbsp;&nbsp;&nbsp;42811 | $&nbsp;&nbsp;&nbsp;&nbsp;(1028) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 71.0 |

---

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund | (Cont.) | December 31, 2022 | (Unaudited) |

---

The following is a summary of significant unobservable inputs used in the fair valuations of assets and liabilities categorized within Level 3 of the fair value hierarchy:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Category and Subcategory** | Ending<br>Balance<br>at 12/31/2022 | **Valuation**<br> **Technique** | **Unobservable**<br> **Inputs** | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) |
| **Category and Subcategory** | Ending<br>Balance<br>at 12/31/2022 | **Valuation**<br> **Technique** | **Unobservable**<br> **Inputs** | Input Value(s) | Input Value(s) | Weighted<br>Average |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $3860 | Discounted Cash Flow | Discount Rate |  | 6.180 |  |
|  | 3228 | Discounted Cash Flow | Discount Spread |  | 9.080 |  |
|  | 2986 | Proxy Pricing | Base Price |  | 95.286 |  |
|  | 10392 | Third Party Vendor | Broker Quote |  | 35.000-87.500 | &nbsp;&nbsp;&nbsp;&nbsp;70.265 |
|  U.S. Government Agencies | 2366 | Discounted Cash Flow | Discount Rate |  | 12.000 |  |
|  Asset-Backed Securities | 2148 | Discounted Cash Flow | Discount Rate |  | 10.000-20.000 | 16.849 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp;&nbsp;&nbsp; Communication Services | 267 | Reference Instrument | Stock Price W/Liquidity Discount |  | 10.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Energy | 44 | Market Comparable Valuation | EBITDA Multiple |  | 4.600 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 2723 | Indicative Market Quotation | Price | $— | 24.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 7015 | Market Comparable Valuation /<br>Discounted Cash Flow | Revenue \| EBITDA Multiple /<br>Discount Rate |  | 0.620\|6.160/10.000 |  |
|  | 1047 | Discounted Cash Flow | Discount Rate |  | 11.590 |  |
|  | 191 | Indicative Market Quotation | Price | $— | 7.500 |  |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 81 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 1 | Indicative Market Quotation | Price | $— | 2.000-3.500 | 3.265 |
|  | 89 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Information Technology | 5507 | Market Comparable Valuation | EBITDA Multiple |  | 4.500 |  |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 866 | Market Comparable Valuation /<br>Discounted Cash Flow | TBV Multiple/Discount Rate |  | 0.370/24.820 |  |
|  Total | $&nbsp;&nbsp;&nbsp;&nbsp;42811 |  |  |  |  |  |

---

<sup>(1)</sup> Any difference between Net Change in Unrealized Appreciation/(Depreciation) and Net Change in Unrealized Appreciation/(Depreciation) on Investments Held at December 31, 2022 may be due to an investment no longer held or categorized as Level 3 at period end. 

<sup>(2)</sup> Includes valuation techniques not defined in the Notes to Financial Statements as securities valued using such techniques are not considered significant to the Fund. 

---

| | | |
|:---|:---|:---|
| **72** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | | | |
|:---|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund II | December 31, 2022 | (Unaudited) |

---

#### (Amounts in thousands\*, except number of shares, contracts, units and ounces, if any)

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
| INVESTMENTS IN SECURITIES 137.2% | INVESTMENTS IN SECURITIES 137.2% | INVESTMENTS IN SECURITIES 137.2% |
| LOAN PARTICIPATIONS AND ASSIGNMENTS 33.9% | LOAN PARTICIPATIONS AND ASSIGNMENTS 33.9% | LOAN PARTICIPATIONS AND ASSIGNMENTS 33.9% |
|  American Airlines, Inc. | American Airlines, Inc. | American Airlines, Inc. |
|  8.993% (LIBOR03M + 4.750%) due 04/20/2028 ~ | 900 | 898 |
|  AmSurg LLC | AmSurg LLC | AmSurg LLC |
|  TBD% due 04/29/2027 µ | 1523 | 1491 |
|  AP Core Holdings LLC | AP Core Holdings LLC | AP Core Holdings LLC |
|  9.884% (LIBOR01M + 5.500%) due 09/01/2027 ~ | 16499 | 14949 |
|  Arches Buyer, Inc. | Arches Buyer, Inc. | Arches Buyer, Inc. |
|  7.634% (LIBOR01M + 3.250%) due 12/06/2027 ~ | 922 | 856 |
|  Carnival Corp. | Carnival Corp. | Carnival Corp. |
|  5.648% (EUR001M + 3.750%) due 06/30/2025 ~ | 2265 | 2337 |
|  Diamond Sports Group LLC | Diamond Sports Group LLC | Diamond Sports Group LLC |
|  12.317% due 05/25/2026 | 18010 | 17113 |
|  DirecTV Financing LLC | DirecTV Financing LLC | DirecTV Financing LLC |
|  9.384% (LIBOR01M + 5.000%) due 08/02/2027 ~ | 4876 | 4758 |
|  Envision Healthcare Corp. | Envision Healthcare Corp. | Envision Healthcare Corp. |
|  12.119% due 04/29/2027 | 8377 | 8199 |
|  15.744% due 04/28/2028 | 19678 | &nbsp;&nbsp;&nbsp;&nbsp;16103 |
|  Forbes Energy Services LLC | Forbes Energy Services LLC | Forbes Energy Services LLC |
|  7.000% due 06/30/2023 « | 315 | 0 |
|  11.000% due 06/30/2023 « | 4 | 0 |
|  Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. | Gateway Casinos & Entertainment Ltd. |
|  12.138% due 10/15/2027 | 6761 | 6676 |
|  12.565% due 10/18/2027 | 3869 | 2822 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  7.445% due 02/01/2029 | 4461 | 4316 |
|  Lealand Finance Co. BV | Lealand Finance Co. BV | Lealand Finance Co. BV |
|  7.384% (LIBOR01M + 3.000%) due 06/28/2024 ~ | 88 | 57 |
|  Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) | Lealand Finance Co. BV (5.384% Cash and 3.000% PIK) |
|  8.384% (LIBOR01M + 1.000%) due 06/30/2025 ~(b) | 806 | 433 |
|  MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC | MPH Acquisition Holdings LLC |
|  8.985% (LIBOR03M + 4.250%) due 09/01/2028 ~ | 6930 | 5951 |
|  Oi SA | Oi SA | Oi SA |
|  TBD% due 02/26/2035 « | 4206 | 1472 |
|  Poseidon Bidco SASU | Poseidon Bidco SASU | Poseidon Bidco SASU |
|  7.452% (EUR003M + 5.250%) due 07/14/2028 «~ | 6700 | 6179 |
|  Promotora de Informaciones SA | Promotora de Informaciones SA | Promotora de Informaciones SA |
|  6.708% (EUR003M + 5.250%) due 12/31/2026 «~ | 11126 | 10243 |
|  8.000% (EUR003M + 8.000%) due 06/30/2027 «~ | 1559 | 1460 |
|  PUG LLC | PUG LLC | PUG LLC |
|  7.884% (LIBOR01M + 3.500%) due 02/12/2027 ~ | 9665 | 8046 |
|  8.634% (LIBOR01M + 4.250%) due 02/12/2027 «~ | 409 | 340 |
|  Redstone Holdco 2 LP | Redstone Holdco 2 LP | Redstone Holdco 2 LP |
|  9.108% (LIBOR03M + 4.750%) due 04/27/2028 ~ | 6067 | 4230 |
|  Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. | Rising Tide Holdings, Inc. |
|  9.485% (LIBOR03M + 4.750%) due 06/01/2028 «~ | 1086 | 516 |
|  Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) | Steenbok Lux Finco 2 SARL (10.750% PIK) |
|  10.750% (EUR006M) due 06/30/2023 ~(b) | 14659 | 10095 |
|  Syniverse Holdings, Inc. | Syniverse Holdings, Inc. | Syniverse Holdings, Inc. |
|  11.580% due 05/13/2027 | 17864 | 15676 |
|  Team Health Holdings, Inc. | Team Health Holdings, Inc. | Team Health Holdings, Inc. |
|  7.134% (LIBOR01M + 2.750%) due 02/06/2024 ~ | 13794 | 11863 |
|  Telemar Norte Leste SA | Telemar Norte Leste SA | Telemar Norte Leste SA |
|  TBD% due 02/26/2035 « | 12380 | 4333 |

---

---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  9.438% (LIBOR01M + 5.000%) due 06/26/2026 ~ | 15132 | 8540 |
|  9.938% (LIBOR01M + 5.500%) due 06/26/2026 ~ | 5865 | 3310 |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  9.730% (LIBOR03M + 5.000%) due 09/01/2025 ~ | 13215 | 9390 |
|  Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) | Westmoreland Mining Holdings LLC (15.000% PIK) |
|  15.000% due 03/15/2029 (b) | 5013 | 3898 |
|  Windstream Services LLC | Windstream Services LLC | Windstream Services LLC |
|  8.423% due 02/28/2027 « | 6060 | 5781 |
|  10.673% (LIBOR01M + 6.250%) due 09/21/2027 ~ | 2777 | 2526 |
|  Total Loan Participations and Assignments (Cost $229,537) | Total Loan Participations and Assignments (Cost $229,537) | &nbsp;&nbsp;&nbsp;&nbsp;194857 |
| CORPORATE BONDS & NOTES 49.4% | CORPORATE BONDS & NOTES 49.4% | CORPORATE BONDS & NOTES 49.4% |
| BANKING & FINANCE 11.3% | BANKING & FINANCE 11.3% | BANKING & FINANCE 11.3% |
|  Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. | Apollo Commercial Real Estate Finance, Inc. |
|  4.625% due 06/15/2029 (m) | 1660 | 1331 |
|  Armor Holdco, Inc. | Armor Holdco, Inc. | Armor Holdco, Inc. |
|  8.500% due 11/15/2029 (m) | 2700 | 2031 |
|  Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA | Banca Monte dei Paschi di Siena SpA |
|  1.875% due 01/09/2026 | 2800 | 2578 |
|  2.625% due 04/28/2025 | 6685 | 6494 |
|  3.625% due 09/24/2024 | 1200 | 1222 |
|  5.375% due 01/18/2028 •  | 2100 | 1818 |
|  8.000% due 01/22/2030 •  | 2361 | 2218 |
|  8.500% due 09/10/2030 •  | 1400 | 1322 |
|  10.500% due 07/23/2029 | 5318 | 5287 |
|  Banco de Credito del Peru SA | Banco de Credito del Peru SA | Banco de Credito del Peru SA |
|  4.650% due 09/17/2024 | 800 | 197 |
|  Barclays PLC | Barclays PLC | Barclays PLC |
|  7.437% due 11/02/2033 •  | 1882 | 1978 |
|  BNP Paribas SA | BNP Paribas SA | BNP Paribas SA |
|  3.132% due 01/20/2033 •  | 1659 | 1314 |
|  BOI Finance BV | BOI Finance BV | BOI Finance BV |
|  7.500% due 02/16/2027 | 3000 | 2593 |
|  Corsair International Ltd. | Corsair International Ltd. | Corsair International Ltd. |
|  5.473% due 01/28/2027 •  | 1000 | 1062 |
|  Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. | Cosaint Re Pte. Ltd. |
|  13.850% (T-BILL 1MO + 9.250%) due 04/03/2028 ~ | 900 | 729 |
|  Credit Agricole SA | Credit Agricole SA | Credit Agricole SA |
|  7.875% due 01/23/2024 •(i)(j) | 300 | 298 |
|  Credit Suisse Group AG | Credit Suisse Group AG | Credit Suisse Group AG |
|  6.373% due 07/15/2026 •(m) | 500 | 470 |
|  6.442% due 08/11/2028 •(m) | 600 | 547 |
|  7.500% due 12/11/2023 •(i)(j) | 1463 | 1282 |
|  7.500% due 12/11/2023 •(i)(j)(m) | 5780 | 5063 |
|  GSPA Monetization Trust | GSPA Monetization Trust | GSPA Monetization Trust |
|  6.422% due 10/09/2029 | 2655 | 2551 |
|  Hestia Re Ltd. | Hestia Re Ltd. | Hestia Re Ltd. |
|  13.840% (T-BILL 1MO + 9.500%) due 04/22/2025 ~ | 704 | 581 |
|  Sanders Re Ltd. | Sanders Re Ltd. | Sanders Re Ltd. |
|  16.090% (T-BILL 3MO + 11.750%) due 04/09/2029 ~ | 1405 | 1334 |
|  Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC | Unique Pub Finance Co. PLC |
|  5.659% due 06/30/2027 | 356 | 425 |
|  Uniti Group LP | Uniti Group LP | Uniti Group LP |
|  6.000% due 01/15/2030 (m) | 9565 | 6065 |
|  6.500% due 02/15/2029 (m) | 2900 | 1927 |
|  VICI Properties LP | VICI Properties LP | VICI Properties LP |
|  5.750% due 02/01/2027 (m) | 5300 | 5173 |
|  Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC | Voyager Aviation Holdings LLC |
|  8.500% due 05/09/2026 | 8297 | 6586 |
|  Yosemite Re Ltd. | Yosemite Re Ltd. | Yosemite Re Ltd. |
|  14.087% (T-BILL 3MO + 9.750%) due 06/06/2025 ~ | 760 | 732 |
|  |  | &nbsp;&nbsp;&nbsp;&nbsp;65208 |

---

---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT<br>(000S) | MARKET<br>VALUE<br>(000S) |
| INDUSTRIALS 30.8% | INDUSTRIALS 30.8% | INDUSTRIALS 30.8% |
|  Altice Financing SA | Altice Financing SA | Altice Financing SA |
|  5.750% due 08/15/2029 (m) | 2739 | 2160 |
|  Boeing Co. | Boeing Co. | Boeing Co. |
|  6.125% due 02/15/2033 (m) | 1755 | 1789 |
|  Carvana Co. | Carvana Co. | Carvana Co. |
|  10.250% due 05/01/2030 | 2500 | 1179 |
|  CGG SA | CGG SA | CGG SA |
|  7.750% due 04/01/2027 | 5500 | 4831 |
|  8.750% due 04/01/2027 (m) | 3656 | 2929 |
|  Champion Path Holdings Ltd. | Champion Path Holdings Ltd. | Champion Path Holdings Ltd. |
|  4.500% due 01/27/2026 | 1100 | 960 |
|  4.850% due 01/27/2028 | 1200 | 1012 |
|  Community Health Systems, Inc. | Community Health Systems, Inc. | Community Health Systems, Inc. |
|  5.250% due 05/15/2030 (m) | 4100 | 3099 |
|  8.000% due 03/15/2026 (m) | 4014 | 3663 |
|  CVS Pass-Through Trust | CVS Pass-Through Trust | CVS Pass-Through Trust |
|  7.507% due 01/10/2032 (m) | 685 | 713 |
|  DISH DBS Corp. | DISH DBS Corp. | DISH DBS Corp. |
|  5.250% due 12/01/2026 (m) | 7000 | 5909 |
|  5.750% due 12/01/2028 (m) | 7260 | 5808 |
|  DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) | DTEK Energy BV (3.500% Cash and 3.500% PIK) |
|  7.000% due 12/31/2027 (b) | 4193 | 1156 |
|  Dufry One BV | Dufry One BV | Dufry One BV |
|  3.625% due 04/15/2026 | 3090 | 2942 |
|  Exela Intermediate LLC | Exela Intermediate LLC | Exela Intermediate LLC |
|  11.500% due 07/15/2026 | 88 | 15 |
|  Fertitta Entertainment LLC | Fertitta Entertainment LLC | Fertitta Entertainment LLC |
|  6.750% due 01/15/2030 (m) | 2300 | 1860 |
|  Ford Motor Co. | Ford Motor Co. | Ford Motor Co. |
|  7.700% due 05/15/2097 (m) | 8720 | 8268 |
|  HCA, Inc. | HCA, Inc. | HCA, Inc. |
|  7.500% due 11/15/2095 (m) | 1200 | 1292 |
|  Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA | Intelsat Jackson Holdings SA |
|  6.500% due 03/15/2030 (m) | 17148 | 15373 |
|  Inter Media & Communication SpA | Inter Media & Communication SpA | Inter Media & Communication SpA |
|  6.750% due 02/09/2027 | 3000 | 3052 |
|  Market Bidco Finco PLC | Market Bidco Finco PLC | Market Bidco Finco PLC |
|  4.750% due 11/04/2027 | 800 | 691 |
|  Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. | Melco Resorts Finance Ltd. |
|  4.875% due 06/06/2025 (m) | 1800 | 1656 |
|  5.750% due 07/21/2028 (m) | 1900 | 1592 |
|  New Albertsons LP | New Albertsons LP | New Albertsons LP |
|  6.570% due 02/23/2028 | 6800 | 6993 |
|  Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. | Nissan Motor Co. Ltd. |
|  4.810% due 09/17/2030 (m) | 10500 | 8934 |
|  Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) | Noble Corp. PLC (11.000% Cash or 15.000% PIK) |
|  11.000% due 02/15/2028 (b) | 1387 | 1543 |
|  Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. | Odebrecht Oil & Gas Finance Ltd. |
|  0.000% due 01/30/2023 (f)(i) | 1101 | 3 |
|  Petroleos Mexicanos | Petroleos Mexicanos | Petroleos Mexicanos |
|  2.750% due 04/21/2027 | 2376 | 1996 |
|  Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. | Prime Healthcare Services, Inc. |
|  7.250% due 11/01/2025 (m) | 4500 | 3810 |
|  Russian Railways Via RZD Capital PLC | Russian Railways Via RZD Capital PLC | Russian Railways Via RZD Capital PLC |
|  7.487% due 03/25/2031 ^(c) | 1300 | 849 |
|  Sands China Ltd. | Sands China Ltd. | Sands China Ltd. |
|  5.900% due 08/08/2028 (m) | 5811 | 5449 |
|  Studio City Finance Ltd. | Studio City Finance Ltd. | Studio City Finance Ltd. |
|  6.000% due 07/15/2025 (m) | 2100 | 1824 |
|  6.500% due 01/15/2028 (m) | 2100 | 1634 |
|  Topaz Solar Farms LLC | Topaz Solar Farms LLC | Topaz Solar Farms LLC |
|  4.875% due 09/30/2039 | 1900 | 1691 |
|  5.750% due 09/30/2039 (m) | 11220 | &nbsp;&nbsp;&nbsp;&nbsp;10665 |
|  U.S. Renal Care, Inc. | U.S. Renal Care, Inc. | U.S. Renal Care, Inc. |
|  10.625% due 07/15/2027 (m) | 4044 | 890 |
|  United Group BV | United Group BV | United Group BV |
|  4.875% due 07/01/2024 | 100 | 100 |
|  Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) | Valaris Ltd. (8.250% Cash or 12.000% PIK) |
|  8.250% due 04/30/2028 (b)(m) | 5271 | 5309 |
|  Vale SA | Vale SA | Vale SA |
|  3.202% due 12/29/2049 ~(i) | 110000 | 7773 |

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| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **73** |

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------

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| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund II | (Cont.) |

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---

| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Veritas U.S., Inc. | Veritas U.S., Inc. | Veritas U.S., Inc. |
|  7.500% due 09/01/2025 (m) | 2750 | 1900 |
|  Viking Cruises Ltd. | Viking Cruises Ltd. | Viking Cruises Ltd. |
|  13.000% due 05/15/2025 (m) | 6375 | 6736 |
|  VOC Escrow Ltd. | VOC Escrow Ltd. | VOC Escrow Ltd. |
|  5.000% due 02/15/2028 (m) | 2100 | 1810 |
|  Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) | Wesco Aircraft Holdings, Inc. (7.500% Cash and 3.000% PIK) |
|  10.500% due 11/15/2026 (b) | 27315 | 25198 |
|  Windstream Escrow LLC | Windstream Escrow LLC | Windstream Escrow LLC |
|  7.750% due 08/15/2028 (m) | 4800 | 3923 |
|  Wynn Macau Ltd. | Wynn Macau Ltd. | Wynn Macau Ltd. |
|  5.125% due 12/15/2029 | 200 | 162 |
|  5.500% due 01/15/2026 (m) | 1600 | 1470 |
|  5.500% due 01/15/2026 | 1800 | 1654 |
|  5.500% due 10/01/2027 (m) | 2300 | 2014 |
|  5.625% due 08/26/2028 (m) | 1000 | 856 |
|  |  | &nbsp;&nbsp;&nbsp;&nbsp;177135 |
| UTILITIES 7.3% | UTILITIES 7.3% | UTILITIES 7.3% |
|  Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. | Eskom Holdings SOC Ltd. |
|  6.750% due 08/06/2023 | 1600 | 1545 |
|  7.125% due 02/11/2025 | 1415 | 1292 |
|  7.125% due 02/11/2025 (m) | 2200 | 2009 |
|  NGD Holdings BV | NGD Holdings BV | NGD Holdings BV |
|  6.750% due 12/31/2026 | 396 | 184 |
|  Northwestern Bell Telephone | Northwestern Bell Telephone | Northwestern Bell Telephone |
|  7.750% due 05/01/2030 | 12625 | 11963 |
|  Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) | Odebrecht Drilling Norbe Ltd. (6.350% Cash and 1.000% PIK) |
|  7.350% due 12/01/2026 ^(b) | 258 | 143 |
|  Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) | Odebrecht Offshore Drilling Finance Ltd. (6.720% Cash and 1.000% PIK) |
|  7.720% due 12/01/2026 ^(b) | 8607 | 2303 |
|  Oi SA | Oi SA | Oi SA |
|  10.000% due 07/27/2025 | 26307 | 4546 |
|  Pacific Gas & Electric Co. | Pacific Gas & Electric Co. | Pacific Gas & Electric Co. |
|  3.750% due 08/15/2042 | 22 | 15 |
|  4.000% due 12/01/2046 | 8 | 5 |
|  4.200% due 03/01/2029 (m) | 1800 | 1611 |
|  4.300% due 03/15/2045 | 27 | 19 |
|  4.450% due 04/15/2042 (m) | 535 | 400 |
|  4.500% due 12/15/2041 | 22 | 16 |
|  4.600% due 06/15/2043 | 18 | 14 |
|  4.750% due 02/15/2044 (m) | 6295 | 4840 |
|  4.950% due 07/01/2050 (m) | 4703 | 3664 |
|  Peru LNG SRL | Peru LNG SRL | Peru LNG SRL |
|  5.375% due 03/22/2030 | 7840 | 6559 |
|  Rio Oil Finance Trust | Rio Oil Finance Trust | Rio Oil Finance Trust |
|  9.250% due 07/06/2024 (m) | 309 | 314 |
|  9.250% due 07/06/2024 | 644 | 653 |
|  |  | 42095 |
|  Total Corporate Bonds & Notes<br>(Cost $341,054) | Total Corporate Bonds & Notes<br>(Cost $341,054) | &nbsp;&nbsp;&nbsp;&nbsp;284438 |
| CONVERTIBLE BONDS & NOTES 0.4% | CONVERTIBLE BONDS & NOTES 0.4% | CONVERTIBLE BONDS & NOTES 0.4% |
| INDUSTRIALS 0.4% | INDUSTRIALS 0.4% | INDUSTRIALS 0.4% |
|  DISH Network Corp. | DISH Network Corp. | DISH Network Corp. |
|  3.375% due 08/15/2026 | 3400 | 2139 |
|  Total Convertible Bonds & Notes<br>(Cost $3,400) | Total Convertible Bonds & Notes<br>(Cost $3,400) | 2139 |
| MUNICIPAL BONDS & NOTES 1.9% | MUNICIPAL BONDS & NOTES 1.9% | MUNICIPAL BONDS & NOTES 1.9% |
| ILLINOIS 0.0% | ILLINOIS 0.0% | ILLINOIS 0.0% |
|  Chicago, Illinois General Obligation Bonds, Series 2015 | Chicago, Illinois General Obligation Bonds, Series 2015 | Chicago, Illinois General Obligation Bonds, Series 2015 |
|  7.750% due 01/01/2042 | 56 | 57 |
| OHIO 0.9% | OHIO 0.9% | OHIO 0.9% |
|  Ohio State University Revenue Bonds, Series 2011 | Ohio State University Revenue Bonds, Series 2011 | Ohio State University Revenue Bonds, Series 2011 |
|  4.800% due 06/01/2111 | 6000 | 4955 |

---

---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT<br>(000S) | MARKET<br>VALUE<br>(000S) |
| PUERTO RICO 0.4% | PUERTO RICO 0.4% | PUERTO RICO 0.4% |
|  Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 | Commonwealth of Puerto Rico Bonds, Series 2022 |
|  0.000% due 11/01/2043 (f) | 614 | 269 |
|  0.000% due 11/01/2051 (f) | 6328 | 2136 |
|  |  | 2405 |
| WEST VIRGINIA 0.6% | WEST VIRGINIA 0.6% | WEST VIRGINIA 0.6% |
|  Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 | Tobacco Settlement Finance Authority, West Virginia Revenue Bonds, Series 2007 |
|  0.000% due 06/01/2047 (f) | 45700 | 3403 |
|  Total Municipal Bonds & Notes (Cost $12,947) | Total Municipal Bonds & Notes (Cost $12,947) | &nbsp;&nbsp;&nbsp;&nbsp;10820 |
| U.S. GOVERNMENT AGENCIES 1.9% | U.S. GOVERNMENT AGENCIES 1.9% | U.S. GOVERNMENT AGENCIES 1.9% |
|  Fannie Mae | Fannie Mae | Fannie Mae |
|  1.861% due 01/25/2040 •(a) | 141 | 10 |
|  3.500% due 02/25/2042 (a) | 316 | 30 |
|  4.500% due 11/25/2042 (a) | 901 | 114 |
|  Freddie Mac | Freddie Mac | Freddie Mac |
|  0.700% due 11/25/2055 ~(a) | 33631 | 2153 |
|  1.013% due 09/15/2035 ~ | 776 | 582 |
|  3.000% due 02/15/2033 (a) | 829 | 72 |
|  3.500% due 12/15/2032 (a) | 1165 | 127 |
|  5.992% due 11/25/2055 «~ | 8156 | 5013 |
|  11.939% due 12/25/2027 ~ | 2718 | 2730 |
|  Ginnie Mae | Ginnie Mae | Ginnie Mae |
|  3.500% due 06/20/2042 - 10/20/2042 (a) | 185 | 23 |
|  4.000% due 10/16/2042 - 10/20/2042 (a) | 157 | 18 |
|  Total U.S. Government Agencies<br>(Cost $11,928) | Total U.S. Government Agencies<br>(Cost $11,928) | &nbsp;&nbsp;&nbsp;&nbsp;10872 |
| NON-AGENCY MORTGAGE-BACKED SECURITIES 10.3% | NON-AGENCY MORTGAGE-BACKED SECURITIES 10.3% | NON-AGENCY MORTGAGE-BACKED SECURITIES 10.3% |
|  Banc of America Funding Trust | Banc of America Funding Trust | Banc of America Funding Trust |
|  4.273% due 01/20/2047 ^~ | 387 | 354 |
|  6.000% due 01/25/2037 | 2955 | 2474 |
|  BCAP LLC Trust | BCAP LLC Trust | BCAP LLC Trust |
|  0.000% due 05/26/2037 ~ | 837 | 335 |
|  3.071% due 08/28/2037 ~ | 1855 | 1820 |
|  3.251% due 08/26/2037 ~ | 8811 | 6732 |
|  3.758% due 07/26/2037 ~ | 4413 | 3746 |
|  3.836% due 09/26/2036 ~ | 3400 | 3084 |
|  4.611% due 03/26/2037 þ | 646 | 876 |
|  5.750% due 12/26/2035 ~ | 1602 | 1301 |
|  6.250% due 11/26/2036 | 2400 | 1774 |
|  Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust | Bear Stearns ALT-A Trust |
|  3.580% due 09/25/2047 ^~ | 3841 | 2018 |
|  3.586% due 11/25/2036 ^~ | 285 | 153 |
|  3.619% due 11/25/2035 ~ | 3593 | &nbsp;&nbsp;&nbsp;&nbsp;2632 |
|  3.908% due 09/25/2035 ^~ | 248 | 148 |
|  4.889% due 01/25/2036 ^•  | 501 | 646 |
|  CD Mortgage Trust | CD Mortgage Trust | CD Mortgage Trust |
|  5.688% due 10/15/2048 | 93 | 82 |
|  Chase Mortgage Finance Trust | Chase Mortgage Finance Trust | Chase Mortgage Finance Trust |
|  3.946% due 12/25/2035 ^~ | 3 | 3 |
|  5.500% due 05/25/2036 ^ | 6 | 4 |
|  Citicorp Mortgage Securities Trust | Citicorp Mortgage Securities Trust | Citicorp Mortgage Securities Trust |
|  5.500% due 04/25/2037 | 9 | 8 |
|  6.000% due 09/25/2037 | 314 | 303 |
|  Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust | Commercial Mortgage Loan Trust |
|  6.480% due 12/10/2049 ~ | 426 | 68 |
|  Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust | Countrywide Alternative Loan Resecuritization Trust |
|  6.000% due 05/25/2036 ^ | 1489 | 906 |
|  6.000% due 08/25/2037 ^~ | 754 | 451 |
|  Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust | Countrywide Alternative Loan Trust |
|  2.963% due 04/25/2036 ^~ | 357 | 298 |
|  5.500% due 03/25/2035 | 202 | 92 |
|  5.500% due 01/25/2036 | 279 | 171 |
|  5.750% due 01/25/2035 | 133 | 126 |
|  5.750% due 02/25/2035 | 198 | 139 |
|  5.750% due 12/25/2036 ^ | 550 | 237 |
|  6.000% due 02/25/2035 | 241 | 184 |
|  6.000% due 04/25/2036 | 365 | 180 |

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---

| | | | |
|:---|:---|:---|:---|
|  |  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  6.000% due 04/25/2037 ^ | $| 1209 | 596 |
|  6.250% due 11/25/2036 ^ |  | 444 | 332 |
|  6.250% due 12/25/2036 ^•  |  | 400 | 185 |
|  6.500% due 08/25/2036 ^ |  | 369 | 133 |
|  Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust | Countrywide Home Loan Mortgage Pass-Through Trust |
|  4.969% due 03/25/2035 ^•  |  | 2152 | 1753 |
|  6.000% due 07/25/2037 |  | 1150 | 554 |
|  6.250% due 09/25/2036 ^ |  | 327 | 128 |
|  Credit Suisse First Boston Mortgage-Backed Pass-Through Certificates | Credit Suisse First Boston Mortgage-Backed Pass-Through Certificates | Credit Suisse First Boston Mortgage-Backed Pass-Through Certificates | Credit Suisse First Boston Mortgage-Backed Pass-Through Certificates |
|  6.000% due 11/25/2035 ^ |  | 201 | 150 |
|  Credit Suisse Mortgage Capital Certificates | Credit Suisse Mortgage Capital Certificates | Credit Suisse Mortgage Capital Certificates | Credit Suisse Mortgage Capital Certificates |
|  3.902% due 10/26/2036 ~ |  | 5899 | 4911 |
|  Credit Suisse Mortgage Capital Mortgage-Backed Trust | Credit Suisse Mortgage Capital Mortgage-Backed Trust | Credit Suisse Mortgage Capital Mortgage-Backed Trust | Credit Suisse Mortgage Capital Mortgage-Backed Trust |
|  5.750% due 04/25/2036 ^ |  | 98 | 54 |
|  First Horizon Mortgage Pass-Through Trust | First Horizon Mortgage Pass-Through Trust | First Horizon Mortgage Pass-Through Trust | First Horizon Mortgage Pass-Through Trust |
|  2.848% due 05/25/2037 ^~ |  | 122 | 54 |
|  4.625% due 11/25/2035 ^~ |  | 153 | 134 |
|  Freddie Mac | Freddie Mac | Freddie Mac | Freddie Mac |
|  11.728% due 11/25/2041 ~ |  | 3800 | 3251 |
|  GS Mortgage Securities Corp. | GS Mortgage Securities Corp. | GS Mortgage Securities Corp. | GS Mortgage Securities Corp. |
|  7.736% due 08/15/2039 ~ |  | 1100 | 1110 |
|  IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust | IndyMac IMSC Mortgage Loan Trust |
|  6.500% due 07/25/2037 ^ |  | 3430 | 1114 |
|  Jackson Park Trust | Jackson Park Trust | Jackson Park Trust | Jackson Park Trust |
|  3.242% due 10/14/2039 ~ |  | 2116 | 1530 |
|  JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust | JP Morgan Alternative Loan Trust |
|  3.133% due 05/25/2036 ^~ |  | 811 | 464 |
|  3.203% due 03/25/2036 ^~ |  | 801 | 662 |
|  3.699% due 03/25/2037 ^~ |  | 491 | 436 |
|  JP Morgan Mortgage Trust | JP Morgan Mortgage Trust | JP Morgan Mortgage Trust | JP Morgan Mortgage Trust |
|  3.478% due 02/25/2036 ^~ |  | 155 | 115 |
|  4.006% due 10/25/2035 ~ |  | 57 | 53 |
|  6.500% due 09/25/2035 |  | 33 | 24 |
|  Lehman Mortgage Trust | Lehman Mortgage Trust | Lehman Mortgage Trust | Lehman Mortgage Trust |
|  6.000% due 07/25/2037 ^ |  | 252 | 224 |
|  6.500% due 09/25/2037 ^ |  | 1751 | 631 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  4.829% due 06/25/2047 •  |  | 951 | 848 |
|  MASTR Asset Securitization Trust | MASTR Asset Securitization Trust | MASTR Asset Securitization Trust | MASTR Asset Securitization Trust |
|  6.500% due 11/25/2037 ^ |  | 326 | 86 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  2.736% due 03/25/2036 ^~ |  | 1074 | 590 |
|  Morgan Stanley Capital Trust | Morgan Stanley Capital Trust | Morgan Stanley Capital Trust | Morgan Stanley Capital Trust |
|  8.793% due 11/15/2034 ~ |  | 2400 | 2192 |
|  Nomura Asset Acceptance Corp. Alternative Loan Trust | Nomura Asset Acceptance Corp. Alternative Loan Trust | Nomura Asset Acceptance Corp. Alternative Loan Trust | Nomura Asset Acceptance Corp. Alternative Loan Trust |
|  5.476% due 05/25/2035 ^þ |  | 7 | 4 |
|  Residential Accredit Loans, Inc. Trust | Residential Accredit Loans, Inc. Trust | Residential Accredit Loans, Inc. Trust | Residential Accredit Loans, Inc. Trust |
|  4.623% due 12/26/2034 ^~ |  | 489 | 190 |
|  6.000% due 08/25/2036 ^ |  | 151 | 126 |
|  Residential Asset Securitization Trust | Residential Asset Securitization Trust | Residential Asset Securitization Trust | Residential Asset Securitization Trust |
|  5.750% due 02/25/2036 ^ |  | 774 | 301 |
|  6.000% due 07/25/2037 ^ |  | 1316 | 532 |
|  6.250% due 09/25/2037 ^ |  | 2474 | 997 |
|  Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust | Residential Funding Mortgage Securities, Inc. Trust |
|  4.709% due 09/25/2035 ~ |  | 442 | 292 |
|  4.875% due 08/25/2036 ^~ |  | 63 | 57 |
|  Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust | Structured Adjustable Rate Mortgage Loan Trust |
|  3.694% due 01/25/2036 ^~ |  | 1284 | 808 |
|  4.022% due 11/25/2036 ^~ |  | 1116 | 936 |
|  SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust | SunTrust Adjustable Rate Mortgage Loan Trust |
|  3.232% due 02/25/2037 ^~ |  | 79 | 68 |
|  WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust | WaMu Mortgage Pass-Through Certificates Trust |
|  3.211% due 02/25/2037 ^~ |  | 266 | 239 |
|  3.342% due 05/25/2037 ^~ |  | 514 | 448 |
|  3.672% due 10/25/2036 ^~ |  | 389 | 335 |
|  3.864% due 07/25/2037 ^~ |  | 451 | 414 |
|  Total Non-Agency Mortgage-Backed Securities<br>(Cost $66,237) | Total Non-Agency Mortgage-Backed Securities<br>(Cost $66,237) | Total Non-Agency Mortgage-Backed Securities<br>(Cost $66,237) | &nbsp;&nbsp;&nbsp;&nbsp;59406 |
| ASSET-BACKED SECURITIES 7.4% | ASSET-BACKED SECURITIES 7.4% | ASSET-BACKED SECURITIES 7.4% | ASSET-BACKED SECURITIES 7.4% |
|  Adagio CLO DAC | Adagio CLO DAC | Adagio CLO DAC | Adagio CLO DAC |
|  0.000% due 04/30/2031 ~ | EUR | 1800 | 503 |

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| | | |
|:---|:---|:---|
| **74** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

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------

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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| | | |
|:---|:---|:---|
|  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  Apidos CLO | Apidos CLO | Apidos CLO |
|  0.000% due 07/22/2026 ~ | 1500 | 0 |
|  0.000% due 01/20/2031 ~ | 4500 | 1499 |
|  Argent Securities Trust | Argent Securities Trust | Argent Securities Trust |
|  4.769% due 03/25/2036 ~ | 3076 | 1644 |
|  Avoca CLO DAC | Avoca CLO DAC | Avoca CLO DAC |
|  0.000% due 07/15/2032 ~ | 2230 | 1369 |
|  Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust | Bear Stearns Asset-Backed Securities Trust |
|  4.529% due 10/25/2036 ^~ | 1997 | 2884 |
|  6.500% due 10/25/2036 ^ | 333 | 180 |
|  Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. | Belle Haven ABS CDO Ltd. |
|  3.998% due 07/05/2046 ~ | 180259 | 1331 |
|  CIFC Funding Ltd. | CIFC Funding Ltd. | CIFC Funding Ltd. |
|  0.000% due 04/24/2030 ~ | 2400 | 551 |
|  0.000% due 10/22/2031 ~ | 1500 | 315 |
|  Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust | Citigroup Mortgage Loan Trust |
|  4.539% due 12/25/2036 ~ | 11554 | 4832 |
|  4.549% due 12/25/2036 ~ | 1328 | 749 |
|  Cork Street CLO Designated Activity Co. | Cork Street CLO Designated Activity Co. | Cork Street CLO Designated Activity Co. |
|  0.000% due 11/27/2028 ~ | 709 | 223 |
|  Fremont Home Loan Trust | Fremont Home Loan Trust | Fremont Home Loan Trust |
|  4.539% due 01/25/2037 ~ | 11513 | 5259 |
|  Grosvenor Place CLO BV | Grosvenor Place CLO BV | Grosvenor Place CLO BV |
|  0.000% due 04/30/2029 ~ | 500 | 94 |
|  Home Equity Mortgage Loan Asset-Backed Trust | Home Equity Mortgage Loan Asset-Backed Trust | Home Equity Mortgage Loan Asset-Backed Trust |
|  4.549% due 07/25/2037 ~ | 2400 | 1298 |
|  KKR CLO Ltd. | KKR CLO Ltd. | KKR CLO Ltd. |
|  0.000% due 10/17/2031 ~ | 3000 | 1777 |
|  Lehman XS Trust | Lehman XS Trust | Lehman XS Trust |
|  6.790% due 06/24/2046 þ | 352 | 380 |
|  Magnetite Ltd. | Magnetite Ltd. | Magnetite Ltd. |
|  0.000% due 01/15/2028 ~ | 5650 | 1576 |
|  Marlette Funding Trust | Marlette Funding Trust | Marlette Funding Trust |
|  0.000% due 09/17/2029 «(f) | 7 | 574 |
|  0.000% due 03/15/2030 «(f) | 6 | 209 |
|  Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust | Merrill Lynch Mortgage Investors Trust |
|  4.336% due 04/25/2037 ~ | 376 | 188 |
|  Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust | Morgan Stanley Mortgage Loan Trust |
|  6.250% due 02/25/2037 ^~ | 412 | 195 |
|  SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust | SLM Student Loan EDC Repackaging Trust |
|  0.000% due 10/28/2029 «(f) | 1 | 811 |
|  SLM Student Loan Trust | SLM Student Loan Trust | SLM Student Loan Trust |
|  0.000% due 01/25/2042 «(f) | 4 | 1368 |
|  SMB Private Education Loan Trust | SMB Private Education Loan Trust | SMB Private Education Loan Trust |
|  0.000% due 09/18/2046 «(f) | 1 | 433 |
|  0.000% due 10/15/2048 «(f) | 1 | 324 |
|  Sofi Professional Loan Program LLC | Sofi Professional Loan Program LLC | Sofi Professional Loan Program LLC |
|  0.000% due 05/25/2040 (f) | 4400 | 446 |
|  0.000% due 07/25/2040 «(f) | 21 | 256 |
|  SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC | SoFi Professional Loan Program LLC |
|  0.000% due 09/25/2040 «(f) | 1758 | 240 |
|  South Coast Funding Ltd. | South Coast Funding Ltd. | South Coast Funding Ltd. |
|  5.192% due 08/10/2038 •  | 11442 | 899 |
|  Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. | Taberna Preferred Funding Ltd. |
|  4.218% due 07/05/2035 ~ | 1368 | 1247 |
|  4.892% due 12/05/2036 •  | 4561 | 4025 |
|  4.912% due 08/05/2036 •  | 278 | 248 |
|  4.912% due 08/05/2036 ^~ | 5488 | 4898 |
|  Total Asset-Backed Securities (Cost $79,310) | Total Asset-Backed Securities (Cost $79,310) | &nbsp;&nbsp;&nbsp;&nbsp;42825 |
| SOVEREIGN ISSUES 1.7% | SOVEREIGN ISSUES 1.7% | SOVEREIGN ISSUES 1.7% |
|  Argentina Government International Bond | Argentina Government International Bond | Argentina Government International Bond |
|  0.500% due 07/09/2030 þ | 3626 | 839 |
|  1.000% due 07/09/2029 | 683 | 183 |
|  1.400% due 03/25/2023 | 253793 | 771 |
|  1.500% due 07/09/2035 þ | 3741 | 847 |
|  1.500% due 07/09/2046 þ | 115 | 30 |
|  3.500% due 07/09/2041 þ | 5512 | 1580 |
|  3.875% due 01/09/2038 þ | 11605 | 3695 |
|  15.500% due 10/17/2026 | 61630 | 48 |
|  Ghana Government International Bond | Ghana Government International Bond | Ghana Government International Bond |
|  6.375% due 02/11/2027 ^(c) | 500 | 194 |
|  7.875% due 02/11/2035 ^(c) | 600 | 218 |

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| | | | |
|:---|:---|:---|:---|
|  |  | **PRINCIPAL<br>AMOUNT<br>(000S)** | **MARKET<br>VALUE<br>(000S)** |
|  8.750% due 03/11/2061 ^(c) | $| 200 | 71 |
|  Provincia de Buenos Aires | Provincia de Buenos Aires | Provincia de Buenos Aires | Provincia de Buenos Aires |
|  72.913% due 04/12/2025  | ARS | 363012 | 1001 |
|  Ukraine Government International Bond | Ukraine Government International Bond | Ukraine Government International Bond | Ukraine Government International Bond |
|  4.375% due 01/27/2032 ^(c) | EUR | 1205 | 240 |
|  Venezuela Government International Bond | Venezuela Government International Bond | Venezuela Government International Bond | Venezuela Government International Bond |
|  8.250% due 10/13/2024 ^(c) | $| 28 | 2 |
|  9.250% due 09/15/2027 ^(c) |  | 315 | 30 |
|  Total Sovereign Issues (Cost $23,436) | Total Sovereign Issues (Cost $23,436) | Total Sovereign Issues (Cost $23,436) | 9749 |
|  |  | **SHARES** |  |
| COMMON STOCKS 4.8% | COMMON STOCKS 4.8% | COMMON STOCKS 4.8% | COMMON STOCKS 4.8% |
| COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% | COMMUNICATION SERVICES 0.3% |
|  Clear Channel Outdoor Holdings, Inc. (d) |  | 549096 | 577 |
|  iHeartMedia, Inc. 'A' (d) |  | 129909 | 796 |
|  iHeartMedia, Inc. 'B' «(d) |  | 100822 | 556 |
|  |  |  | 1929 |
| CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% | CONSUMER STAPLES 0.0% |
|  Promotora de Informaciones SA |  | 258261 | 78 |
| ENERGY 0.1% | ENERGY 0.1% | ENERGY 0.1% | ENERGY 0.1% |
|  Axis Energy Services 'A' «(d)(k) |  | 2048 | 72 |
|  Noble Corp. PLC (d) |  | 13839 | 522 |
|  |  |  | 594 |
| FINANCIALS 1.4% | FINANCIALS 1.4% | FINANCIALS 1.4% | FINANCIALS 1.4% |
|  Banca Monte dei Paschi di Siena SpA (d) |  | 1043000 | 2149 |
|  Intelsat SA «(d)(k) |  | 233192 | 5596 |
|  |  |  | 7745 |
| INDUSTRIALS 3.0% | INDUSTRIALS 3.0% | INDUSTRIALS 3.0% | INDUSTRIALS 3.0% |
|  Neiman Marcus Group Ltd. LLC «(d)(k) |  | 82915 | 14598 |
|  Syniverse Holdings, Inc. «(k) |  | 2129109 | 2046 |
|  Voyager Aviation Holdings LLC «(d) |  | 1155 | 0 |
|  Westmoreland Mining Holdings «(d)(k) |  | 53248 | 399 |
|  |  |  | 17043 |
|  Total Common Stocks (Cost $32,640) | Total Common Stocks (Cost $32,640) | Total Common Stocks (Cost $32,640) | &nbsp;&nbsp;&nbsp;&nbsp;27389 |
| RIGHTS 0.0% | RIGHTS 0.0% | RIGHTS 0.0% | RIGHTS 0.0% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Jackson Holdings SA «(d) |  | 24544 | 166 |
|  Total Rights (Cost $0) | Total Rights (Cost $0) | Total Rights (Cost $0) | 166 |
| WARRANTS 2.0% | WARRANTS 2.0% | WARRANTS 2.0% | WARRANTS 2.0% |
| FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% | FINANCIALS 0.0% |
|  Intelsat Emergence SA - Exp. 02/17/2027 « |  | 401 | 1 |
|  Intelsat Jackson Holdings SA-Exp. 12/05/2025 « |  | 24408 | 183 |
|  |  |  | 184 |
| INFORMATION TECHNOLOGY 2.0% | INFORMATION TECHNOLOGY 2.0% | INFORMATION TECHNOLOGY 2.0% | INFORMATION TECHNOLOGY 2.0% |
|  Windstream Holdings LLC - Exp. 9/21/2055 « |  | 565698 | 11452 |
|  Total Warrants (Cost $10,079) | Total Warrants (Cost $10,079) | Total Warrants (Cost $10,079) | 11636 |

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| | | |
|:---|:---|:---|
|  | **SHARES** | MARKET<br>VALUE<br>(000S) |
| PREFERRED SECURITIES 2.8% | PREFERRED SECURITIES 2.8% | PREFERRED SECURITIES 2.8% |
| BANKING & FINANCE 2.5% | BANKING & FINANCE 2.5% | BANKING & FINANCE 2.5% |
|  AGFC Capital Trust | AGFC Capital Trust | AGFC Capital Trust |
|  5.829% (US0003M + 1.750%) due 01/15/2067 ~(m) | 1800000 | 1009 |
|  Brighthouse Holdings LLC | Brighthouse Holdings LLC | Brighthouse Holdings LLC |
|  6.500% due 07/27/2037 þ(i) | 70000 | 63 |
|  Farm Credit Bank of Texas | Farm Credit Bank of Texas | Farm Credit Bank of Texas |
|  5.700% due 09/15/2025 •(i) | 1000000 | 930 |
|  Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten | Stichting AK Rabobank Certificaten |
|  6.500% due 12/29/2049 þ(i) | 12110000 | 12467 |
|  |  | 14469 |
| INDUSTRIALS 0.3% | INDUSTRIALS 0.3% | INDUSTRIALS 0.3% |
|  Voyager Aviation Holdings LLC « | 6929 | 1859 |
|  Total Preferred Securities (Cost $21,698) | Total Preferred Securities (Cost $21,698) | 16328 |
| REAL ESTATE INVESTMENT TRUSTS 0.8% | REAL ESTATE INVESTMENT TRUSTS 0.8% | REAL ESTATE INVESTMENT TRUSTS 0.8% |
| REAL ESTATE 0.8% | REAL ESTATE 0.8% | REAL ESTATE 0.8% |
|  CBL & Associates Properties, Inc. | 6516 | 150 |
|  Uniti Group, Inc. | 274273 | 1517 |
|  VICI Properties, Inc. | 89142 | 2888 |
|  Total Real Estate Investment Trusts<br>(Cost $2,373) | Total Real Estate Investment Trusts<br>(Cost $2,373) | 4555 |
|  | PRINCIPAL<br>AMOUNT<br>(000S) |  |
| SHORT-TERM INSTRUMENTS 19.9% | SHORT-TERM INSTRUMENTS 19.9% | SHORT-TERM INSTRUMENTS 19.9% |
| REPURCHASE AGREEMENTS (l) 16.8% | REPURCHASE AGREEMENTS (l) 16.8% | REPURCHASE AGREEMENTS (l) 16.8% |
|  |  | 96917 |
| SHORT-TERM NOTES 2.5% | SHORT-TERM NOTES 2.5% | SHORT-TERM NOTES 2.5% |
|  Federal Home Loan Bank | Federal Home Loan Bank | Federal Home Loan Bank |
|  4.320% due 01/06/2023 •  | 3000 | 3000 |
|  4.340% due 02/10/2023 •(o) | 5600 | 5600 |
|  4.345% due 02/23/2023 •  | 5600 | 5600 |
|  |  | 14200 |
| ARGENTINA TREASURY BILLS 0.0% | ARGENTINA TREASURY BILLS 0.0% | ARGENTINA TREASURY BILLS 0.0% |
|  18.499% due 05/19/2023 (f)(g)(h) | 63616 | 193 |
| U.S. TREASURY BILLS 0.6% | U.S. TREASURY BILLS 0.6% | U.S. TREASURY BILLS 0.6% |
|  3.783% due 01/05/2023 - 03/02/2023 (e)(f)(q) | 3163 | 3153 |
| Total Short-Term Instruments<br>(Cost $114,495) | Total Short-Term Instruments<br>(Cost $114,495) | &nbsp;&nbsp;&nbsp;&nbsp;114463 |
| Total Investments in Securities<br>(Cost $949,134) | Total Investments in Securities<br>(Cost $949,134) | 789643 |
| Total Investments 137.2%<br>(Cost $949,134) | Total Investments 137.2%<br>(Cost $949,134) | 789643 |
|  Financial Derivative<br>Instruments (n)(p) (0.2)%<br> (Cost or Premiums, net $2,491) | Financial Derivative<br>Instruments (n)(p) (0.2)%<br> (Cost or Premiums, net $2,491) | (1549) |
| Auction-Rate Preferred Shares (15.2)% | Auction-Rate Preferred Shares (15.2)% | (87425) |
| Other Assets and Liabilities, net (21.8)% | Other Assets and Liabilities, net (21.8)% | &nbsp;&nbsp;&nbsp;&nbsp;(125213) |
| Net Assets Applicable to Common Shareholders 100.0% | Net Assets Applicable to Common Shareholders 100.0% | 575456 |

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| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **75** |

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| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund II | (Cont.) |

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#### NOTES TO SCHEDULE OF INVESTMENTS:
\* A zero balance may reflect actual amounts rounding to less than one thousand. 

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| | |
|:---|:---|
| ^ | Security is in default.  |

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| | |
|:---|:---|
| « | Security valued using significant unobservable inputs (Level 3).  |

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| | |
|:---|:---|
| µ | All or a portion of this amount represents unfunded loan commitments. The interest rate for the unfunded portion will be determined at the time of funding. See Note 4, Securities and Other Investments, in the Notes to Financial Statements for more information regarding unfunded loan commitments.  |

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| | |
|:---|:---|
| ~ | Variable or Floating rate security. Rate shown is the rate in effect as of period end. Certain variable rate securities are not based on a published reference rate and spread, rather are determined by the issuer or agent and are based on current market conditions. Reference rate is as of reset date, which may vary by security. These securities may not indicate a reference rate and/or spread in their description.  |

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• Rate shown is the rate in effect as of period end. The rate may be based on a fixed rate, a capped rate or a floor rate and may convert to a variable or floating rate in the future. These securities do not indicate a reference rate and spread in their description. 

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| | |
|:---|:---|
| þ | Coupon represents a rate which changes periodically based on a predetermined schedule or event. Rate shown is the rate in effect as of period end.  |

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(a) Security is an Interest Only ("IO") or IO Strip. 

(b) Payment in-kind security. 

(c) Security is not accruing income as of the date of this report. 

(d) Security did not produce income within the last twelve months. 

(e) Coupon represents a weighted average yield to maturity. 

(f) Zero coupon security. 

(g) Coupon represents a yield to maturity. 

(h) Principal amount of security is adjusted for inflation. 

(i) Perpetual maturity; date shown, if applicable, represents next contractual call date. 

(j) Contingent convertible security. 

&nbsp;&nbsp;&nbsp;&nbsp;(k) RESTRICTED SECURITIES:

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| | | | | |
|:---|:---|:---|:---|:---|
| Issuer Description | Acquisition<br>Date | Cost | Market<br>Value | **Market Value<br>as Percentage<br>of Net Assets**<br> **Applicable<br>to Common<br>Shareholders** |
|  Axis Energy Services 'A' | 07/01/2021 | $30 | $72 | 0.01% |
|  Intelsat SA | 06/19/2017 - 02/23/2022 | 16395 | 5596 | 0.97 |
|  Neiman Marcus Group Ltd. LLC | 09/25/2020 | 2719 | 14598 | 2.54 |
|  Syniverse Holdings, Inc. | 05/12/2022 -11/30/2022 | 2089 | 2046 | 0.36 |
|  Westmoreland Mining Holdings | 12/08/2014 -10/19/2016 | 1535 | 399 | 0.07 |
|  |  | $&nbsp;&nbsp;&nbsp;&nbsp;22768 | $&nbsp;&nbsp;&nbsp;&nbsp;22711 | 3.95% |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS
&nbsp;&nbsp;&nbsp;&nbsp;(l) REPURCHASE AGREEMENTS:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Lending<br>Rate | Settlement<br>Date | Maturity<br>Date | Principal<br>Amount | Collateralized By | Collateral<br>(Received) | Repurchase<br>Agreements,<br>at Value | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> |
| FICC | 1.900% | 12/30/2022 | 01/03/2023 | $1317 | U.S. Treasury Bills 0.000% due 06/29/2023 | $(1343) | $1317 | $1317 |
| MBC | 4.320 | 12/30/2022 | 01/03/2023 | &nbsp;&nbsp;&nbsp;&nbsp;95600 | U.S. Treasury Bills 0.000% due 01/05/2023 | (97924) | 95600 | 95646 |
|  Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements | Total Repurchase Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;(99267) | $&nbsp;&nbsp;&nbsp;&nbsp;96917 | $&nbsp;&nbsp;&nbsp;&nbsp;96963 |

---

#### REVERSE REPURCHASE AGREEMENTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Counterparty | Borrowing<br>Rate<sup>(2)</sup> | Settlement<br>Date | Maturity<br>Date | Amount<br>Borrowed<sup>(2)</sup> | Payable for<br>Reverse<br>Repurchase<br>Agreements |
|  BOS | 3.760% | 11/16/2022 | 01/10/2023 | $(3368) | $&nbsp;&nbsp;&nbsp;&nbsp;(3385) |
|  | 3.760 | 11/17/2022 | 01/10/2023 | (1367) | (1373) |
|  BPS | 0.000 | 11/15/2022 | 01/27/2023 | (1027) | (1027) |
|  | 0.000 | 11/15/2022 | 02/13/2023 | (522) | (522) |
|  | 3.760 | 08/12/2022 | 02/13/2023 | (1336) | (1356) |
|  | 3.760 | 08/26/2022 | 02/13/2023 | (2865) | (2904) |
|  | 3.760 | 08/30/2022 | 02/13/2023 | (302) | (306) |
|  | 3.760 | 08/31/2022 | 02/13/2023 | (1170) | (1185) |

---

---

| | | |
|:---|:---|:---|
| **76** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Borrowing<br>Rate<sup>(2)</sup>** | **Settlement<br>Date** | **Maturity<br>Date** | **Amount<br>Borrowed<sup>(2)</sup>** | **Payable for<br>Reverse<br>Repurchase<br>Agreements** |
|  | 3.760% | 09/09/2022 | 02/13/2023 | $(598) | $(605) |
|  | 4.600 | 10/26/2022 | 01/19/2023 | (3765) | (3798) |
|  | 4.600 | 11/15/2022 | 01/19/2023 | (1077) | (1083) |
|  | 4.600 | 12/05/2022 | 03/23/2023 | (4267) | (4283) |
|  | 4.620 | 09/23/2022 | 03/23/2023 | (2034) | (2061) |
|  | 4.720 | 10/27/2022 | 01/30/2023 | (1715) | (1730) |
|  | 4.720 | 12/12/2022 | 01/30/2023 | (617) | (618) |
|  | 4.720 | 12/14/2022 | 01/30/2023 | (1018) | (1021) |
|  BRC | 1.900 | 12/21/2022 | TBD<sup>(3)</sup> | (530) | (568) |
|  BYR | 4.950 | 09/26/2022 | 03/24/2023 | $(5102) | (5143) |
|  | 4.950 | 09/30/2022 | 03/24/2023 | (1809) | (1826) |
|  | 4.960 | 10/06/2022 | 04/03/2023 | (2172) | (2192) |
|  CDC | 3.270 | 08/04/2022 | 01/09/2023 | (2864) | (2903) |
|  | 3.270 | 08/18/2022 | 01/09/2023 | (1192) | (1207) |
|  | 3.270 | 09/14/2022 | 01/09/2023 | (313) | (316) |
|  | 3.270 | 09/21/2022 | 01/09/2023 | (1666) | (1682) |
|  | 3.270 | 10/20/2022 | 01/09/2023 | (254) | (256) |
|  | 3.990 | 09/06/2022 | 03/03/2023 | (4296) | (4353) |
|  | 3.990 | 11/09/2022 | 03/03/2023 | (630) | (634) |
|  | 4.450 | 10/14/2022 | 02/13/2023 | (467) | (472) |
|  | 4.450 | 10/31/2022 | 01/30/2023 | (2489) | (2509) |
|  | 4.450 | 11/07/2022 | 02/13/2023 | (687) | (692) |
|  | 4.450 | 11/14/2022 | 01/30/2023 | (1287) | (1295) |
|  | 4.620 | 10/14/2022 | 02/13/2023 | (7376) | (7452) |
|  | 4.620 | 11/07/2022 | 02/13/2023 | (1543) | (1554) |
|  | 4.620 | 12/22/2022 | 02/13/2023 | (1991) | (1994) |
|  | 4.680 | 11/14/2022 | 02/13/2023 | (963) | (969) |
|  | 4.730 | 10/31/2022 | 01/30/2023 | (10428) | (10516) |
|  | 4.760 | 10/07/2022 | 04/05/2023 | (781) | (791) |
|  | 4.850 | 10/11/2022 | 04/06/2023 | (152) | (154) |
|  | 4.860 | 11/07/2022 | 02/07/2023 | (7662) | (7721) |
|  IND | 0.000 | 11/08/2022 | 01/31/2023 | (1045) | (1045) |
|  | 0.000 | 11/08/2022 | 04/10/2023 | (563) | (563) |
|  | 4.530 | 10/28/2022 | 01/31/2023 | (4290) | (4326) |
|  | 4.720 | 10/28/2022 | 01/31/2023 | (7059) | (7121) |
|  | 5.000 | 11/07/2022 | 03/07/2023 | (1503) | (1515) |
|  JML | 1.500 | 09/14/2022 | TBD<sup>(3)</sup> | (536) | (574) |
|  | 2.050 | 09/14/2022 | TBD<sup>(3)</sup> | (2073) | (2224) |
|  | 2.070 | 09/14/2022 | TBD<sup>(3)</sup> | (1017) | (1091) |
|  MBC | 2.050 | 11/02/2022 | TBD<sup>(3)</sup> | (5423) | (5820) |
|  MEI | 3.860 | 10/05/2022 | 02/28/2023 | $(4764) | (4810) |
|  | 3.860 | 10/11/2022 | 02/28/2023 | (236) | (238) |
|  | 3.860 | 10/17/2022 | 02/28/2023 | (804) | (811) |
|  | 4.700 | 11/04/2022 | 02/13/2023 | (177) | (178) |
|  | 4.700 | 11/15/2022 | 02/13/2023 | (695) | (700) |
|  | 4.770 | 12/15/2022 | 01/27/2023 | (3433) | (3442) |
|  RDR | 4.260 | 10/06/2022 | 02/03/2023 | (1636) | (1653) |
|  | 4.430 | 10/26/2022 | 01/30/2023 | (1056) | (1065) |
|  | 4.700 | 11/10/2022 | 02/10/2023 | (546) | (550) |
|  SOG | 3.980 | 10/14/2022 | 01/12/2023 | (1028) | (1037) |
|  | 4.360 | 09/30/2022 | 01/30/2023 | (1085) | (1098) |
|  | 4.390 | 11/16/2022 | 01/27/2023 | (1532) | (1541) |
|  | 4.450 | 10/26/2022 | 02/06/2023 | (761) | (767) |
|  | 4.450 | 11/02/2022 | 02/06/2023 | (559) | (563) |
|  | 4.640 | 10/14/2022 | 02/14/2023 | (1642) | (1659) |
|  | 4.660 | 10/25/2022 | 01/25/2023 | (1162) | (1172) |
|  | 4.660 | 10/26/2022 | 01/25/2023 | (696) | (702) |
|  | 4.660 | 11/29/2022 | 01/25/2023 | (1575) | (1582) |
|  | 4.760 | 10/17/2022 | 02/17/2023 | (1071) | (1082) |
|  | 4.790 | 11/02/2022 | 02/02/2023 | (5500) | (5546) |
|  | 4.790 | 11/04/2022 | 02/02/2023 | (1467) | (1479) |
|  | 4.790 | 11/29/2022 | 02/02/2023 | (539) | (542) |
|  | 4.820 | 12/23/2022 | 02/22/2023 | (715) | (716) |
|  | 4.830 | 11/04/2022 | 02/06/2023 | (368) | (371) |
|  | 4.900 | 10/12/2022 | 04/12/2023 | (1317) | (1332) |
|  | 4.900 | 11/04/2022 | 04/12/2023 | (721) | (727) |
|  Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements | Total Reverse Repurchase Agreements |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(144098) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 77.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund II | (Cont.) |

---

#### BORROWINGS AND OTHER FINANCING TRANSACTIONS SUMMARY
The following is a summary by counterparty of the market value of Borrowings and Other Financing Transactions and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Counterparty | Repurchase<br>Agreement<br>Proceeds<br>to be<br>Received<sup>(1)</sup> | Payable for<br>Reverse<br>Repurchase<br>Agreements | Payable for<br>Sale-Buyback<br>Transactions | Total<br>Borrowings and<br>Other Financing<br>Transactions | Collateral<br>Pledged/(Received) | Net Exposure<sup>(4)</sup> |
|  Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement | Global/Master Repurchase Agreement |
|  BOS | $0 | $(4758) | $0 | $(4758) | $4788 | $30 |
|  BPS | 0 | (22499) | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(22499) | &nbsp;&nbsp;&nbsp;&nbsp;26492 | 3993 |
|  BRC | 0 | (568) | 0 | (568) | 547 | (21) |
|  BYR | 0 | (9161) | 0 | (9161) | 11305 | 2144 |
|  CDC | 0 | (47470) | 0 | (47470) | 54350 | 6880 |
|  FICC | 1317 | 0 | 0 | 1317 | (1343) | (26) |
|  IND | 0 | (14570) | 0 | (14570) | 16586 | 2016 |
|  JML | 0 | (3889) | 0 | (3889) | 3798 | (91) |
|  MBC | 95646 | (5820) | 0 | 89826 | &nbsp;&nbsp;&nbsp;&nbsp;(91465) | &nbsp;&nbsp;&nbsp;&nbsp;(1639) |
|  MEI | 0 | (10179) | 0 | (10179) | 12675 | 2496 |
|  RDR | 0 | (3268) | 0 | (3268) | 3234 | (34) |
|  SOG | 0 | (21916) | 0 | (21916) | 25549 | 3633 |
|  Total Borrowings and Other Financing Transactions | $&nbsp;&nbsp;&nbsp;&nbsp;96963 | $&nbsp;&nbsp;&nbsp;&nbsp;(144098) | $&nbsp;&nbsp;&nbsp;&nbsp;0 |  |  |  |

---

#### CERTAIN TRANSFERS ACCOUNTED FOR AS SECURED BORROWINGS

#### Remaining Contractual Maturity of the Agreements

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Overnight and<br>Continuous | Up to 30 days | 31-90 days | Greater Than 90 days | Total |
|  Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements | Reverse Repurchase Agreements |
|  Corporate Bonds & Notes | $0 | $(46359) | $(81704) | $(15245) | $(143308) |
|  Preferred Securities | 0 | 0 | 0 | (790) | (790) |
|  Total Borrowings | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(46359) | $&nbsp;&nbsp;&nbsp;&nbsp;(81704) | $&nbsp;&nbsp;&nbsp;&nbsp;(16035) | $(144098) |
|  Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | Payable for reverse repurchase agreements  | $&nbsp;&nbsp;&nbsp;&nbsp;(144098) |

---

(m) Securities with an aggregate market value of $170,515 and cash of $580 have been pledged as collateral under the terms of the above master agreements as of December 31, 2022. 

<sup>(1)</sup> Includes accrued interest. 

<sup>(2)</sup> The average amount of borrowings outstanding during the period ended December 31, 2022 was $(164698) at a weighted average interest rate of 2.825%. Average borrowings may include reverse repurchase agreements and sale-buyback transactions, if held during the period. 

<sup>(3)</sup> Open maturity reverse repurchase agreement. 

<sup>(4)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from borrowings and other financing transactions can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

&nbsp;&nbsp;&nbsp;&nbsp;(n) FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Variation Margin | Variation Margin |
| **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | **Market<br>Value<sup>(4)</sup>** | Asset | Liability |
|  Bombardier, Inc. | 5.000% | Quarterly | 06/20/2024 | 2.622% | $5400 | $(175) | $364 | $189 | $0 | $(12) |
|  Bombardier, Inc. | 5.000 | Quarterly | 12/20/2024 | 2.780 | 1600 | (7) | 75 | 68 | &nbsp;&nbsp;&nbsp;&nbsp;(1) | 0 |
|  Bombardier, Inc. | 5.000 | Quarterly | 06/20/2027 | 4.245 | 1300 | (38) | 76 | 38 | 0 | (1) |
|  Ford Motor Credit Co. LLC | 5.000 | Quarterly | 06/20/2027 | 3.169 | 3100 | 328 | &nbsp;&nbsp;&nbsp;&nbsp;(110) | 218 | 1 | 0 |
|  Jaguar Land Rover Automotive | 5.000 | Quarterly | 06/20/2026 | 9.564 | 700 | 49 | (138) | (89) | 0 | 0 |
|  Jaguar Land Rover Automotive | 5.000 | Quarterly | 12/20/2026 | 9.896 | 1000 | 39 | (188) | (149) | 1 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 12/20/2025 | 2.767 | 8500 | (929) | 494 | (435) | 1 | 0 |
|  Rolls-Royce PLC | 1.000 | Quarterly | 06/20/2027 | 3.357 | 2900 | (220) | (59) | (279) | 0 | (3) |
|  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(953) | $514 | $&nbsp;&nbsp;&nbsp;&nbsp;(439) | $2 | $&nbsp;&nbsp;&nbsp;&nbsp;(16) |

---

---

| | | |
|:---|:---|:---|
| 78.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

#### INTEREST RATE SWAPS

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Notional<br>Amount | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Market<br>Value | Variation Margin | Variation Margin |
| **Pay/Receive <br>Floating Rate** | **Floating Rate Index** | **Fixed Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Notional<br>Amount | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Market<br>Value | Asset | Liability |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750% | Annual | 09/21/2032 | 8700 | $845 | $1730 | $2575 | $6 | $0 |
|  Receive<sup>(5)</sup> | 1-Day GBP-SONIO Compounded-OIS | 2.000 | Annual | 03/15/2033 | 4600 | 512 | 272 | 784 | 3 | 0 |
|  Receive | 1-Day GBP-SONIO Compounded-OIS | 0.750 | Annual | 09/21/2052 | 2300 | 171 | 1208 | 1379 | 4 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.450 | Annual | 12/20/2024 | $24600 | (2) | 368 | 366 | 13 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.350 | Annual | 01/17/2025 | 12500 | 1 | 184 | 185 | 4 | 0 |
|  Receive<sup>(5)</sup> | 1-Day USD-SOFR Compounded-OIS | 2.300 | Annual | 01/17/2026 | 2000 | 1 | 47 | 48 | 2 | 0 |
|  Pay | 1-Day USD-SOFR Compounded-OIS | 2.000 | Annual | 12/21/2029 | 106500 | &nbsp;&nbsp;&nbsp;&nbsp;(10975) | 565 | &nbsp;&nbsp;&nbsp;&nbsp;(10410) | &nbsp;&nbsp;&nbsp;&nbsp;48 | 0 |
|  Pay | 3-Month USD-LIBOR | 2.750 | Semi-Annual | 06/17/2025 | 149020 | 9092 | &nbsp;&nbsp;&nbsp;&nbsp;(15341) | (6249) | 0 | &nbsp;&nbsp;&nbsp;&nbsp;(220) |
|  Pay | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 06/15/2026 | 26800 | 1267 | (3001) | (1734) | 0 | (44) |
|  Receive | 3-Month USD-LIBOR | 1.350 | Semi-Annual | 01/20/2027 | 8100 | 0 | 853 | 853 | 11 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.550 | Semi-Annual | 01/20/2027 | 35800 | (124) | (3348) | (3472) | 0 | (48) |
|  Receive | 3-Month USD-LIBOR | 1.360 | Semi-Annual | 02/15/2027 | 5430 | 0 | 569 | 569 | 8 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.600 | Semi-Annual | 02/15/2027 | 21700 | (75) | (1985) | (2060) | 0 | (32) |
|  Receive | 3-Month USD-LIBOR | 1.450 | Semi-Annual | 02/17/2027 | 9000 | 0 | 910 | 910 | 14 | 0 |
|  Pay | 3-Month USD-LIBOR | 1.700 | Semi-Annual | 02/17/2027 | 35800 | (135) | (3115) | (3250) | 0 | (54) |
|  Pay | 3-Month USD-LIBOR | 2.500 | Semi-Annual | 12/20/2027 | 49000 | 343 | (3734) | (3391) | 0 | (84) |
|  Receive | 3-Month USD-LIBOR | 1.420 | Semi-Annual | 08/17/2028 | 29500 | 0 | 3794 | 3794 | 55 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.380 | Semi-Annual | 08/24/2028 | 32500 | 0 | 4244 | 4244 | 62 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.000 | Semi-Annual | 06/19/2029 | 75000 | 4675 | (8705) | (4030) | 0 | (162) |
|  Receive | 3-Month USD-LIBOR | 1.160 | Semi-Annual | 04/12/2031 | 2800 | 0 | 552 | 552 | 6 | 0 |
|  Receive | 3-Month USD-LIBOR | 0.750 | Semi-Annual | 06/16/2031 | 38000 | 3140 | 5424 | 8564 | 71 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 12/15/2031 | 40600 | (643) | 7150 | 6507 | 78 | 0 |
|  Pay | 3-Month USD-LIBOR | 3.500 | Semi-Annual | 06/19/2044 | 201500 | (6573) | 1082 | (5491) | 150 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.000 | Semi-Annual | 01/15/2050 | 1400 | (10) | 392 | 382 | 7 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.750 | Semi-Annual | 01/22/2050 | 21100 | (49) | 6759 | 6710 | 99 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.875 | Semi-Annual | 02/07/2050 | 22000 | (85) | 6584 | 6499 | 106 | 0 |
|  Receive | 3-Month USD-LIBOR | 2.250 | Semi-Annual | 03/12/2050 | 6000 | (18) | 1377 | 1359 | 31 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.250 | Semi-Annual | 12/16/2050 | 2400 | 233 | 754 | 987 | 11 | 0 |
|  Receive | 3-Month USD-LIBOR | 1.700 | Semi-Annual | 02/01/2052 | 187400 | 1405 | 59930 | 61335 | 0 | (239) |
|  Pay | 6-Month AUD-BBR-BBSW | 3.500 | Semi-Annual | 06/17/2025 | 8100 | 201 | (292) | (91) | 0 | (1) |
|  Receive | 6-Month EUR-EURIBOR | 0.150 | Annual | 03/18/2030 | 8300 | 152 | 1790 | 1942 | 31 | 0 |
|  Receive | 6-Month EUR-EURIBOR | 0.250 | Annual | 09/21/2032 | 9600 | 902 | 1654 | 2556 | 46 | 0 |
|  Receive<sup>(5)</sup> | 6-Month EUR-EURIBOR | 0.830 | Annual | 12/09/2052 | 8900 | 21 | 265 | 286 | 12 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.675 | Lunar | 04/03/2024 | 200 | 0 | 0 | 0 | 0 | 0 |
|  Receive | 28-Day MXN-TIIE | 8.660 | Lunar | 04/04/2024 | 100 | 0 | 0 | 0 | 0 | 0 |
|  |  |  |  |  |  | $4272 | $68936 | $73208 | $878 | $(884) |
|  Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements | Total Swap Agreements |  | $&nbsp;&nbsp;&nbsp;&nbsp;3319 | $&nbsp;&nbsp;&nbsp;&nbsp;69450 | $&nbsp;&nbsp;&nbsp;&nbsp;72769 | $&nbsp;&nbsp;&nbsp;&nbsp;880 | $&nbsp;&nbsp;&nbsp;&nbsp;(900) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: EXCHANGE-TRADED OR CENTRALLY CLEARED SUMMARY
The following is a summary of the market value and variation margin of Exchange-Traded or Centrally Cleared Financial Derivative Instruments as of December 31, 2022:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities |
|  | Market Value | Variation Margin<br>Asset | Variation Margin<br>Asset | | Market Value | Variation Margin<br>Liability | Variation Margin<br>Liability | |
|  | Purchased<br>Options | Futures | Swap<br>Agreements | Total | Written<br>Options | Futures | Swap<br>Agreements | Total |
|  Total Exchange-Traded or Centrally Cleared | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;880 | $&nbsp;&nbsp;&nbsp;&nbsp;880 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(900) | $&nbsp;&nbsp;&nbsp;&nbsp;(900) |

---

(o) Securities with an aggregate market value of $1,765 and cash of $25,253 have been pledged as collateral for exchange-traded and centrally cleared financial derivative instruments as of December 31, 2022. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **79** |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund II | (Cont.) |

---

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> This instrument has a forward starting effective date. See Note 2, Securities Transactions and Investment Income, in the Notes to Financial Statements for further information. 

&nbsp;&nbsp;&nbsp;&nbsp;(p) FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER

#### FORWARD FOREIGN CURRENCY CONTRACTS:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Counterparty** | Settlement<br>Month | Currency to<br>be Delivered | Currency to<br>be Received | **Unrealized Appreciation/**<br> (Depreciation) | **Unrealized Appreciation/**<br> (Depreciation) |
| **Counterparty** | Settlement<br>Month | Currency to<br>be Delivered | Currency to<br>be Received | Asset | Liability |
|  BOA | 02/2023 | 1858 | $1963 | $0 | $(57) |
|  | 05/2023 | 1254 | 317 | 0 | (10) |
|  BPS | 01/2023 | $422 | 396 | 2 | 0 |
|  BRC | 02/2023 | 955 | $1018 | 0 | (19) |
|  CBK | 01/2023 | 6140 | 1529 | 0 | (85) |
|  | 01/2023 | $352 | 331 | 3 | 0 |
|  | 02/2023 | 6516 | $1207 | 0 | (20) |
|  | 03/2023 | 1942 | 503 | 0 | (6) |
|  | 05/2023 | 1483 | 374 | 0 | (12) |
|  GLM | 03/2023 | 1336 | 65 | 0 | (3) |
|  | 05/2023 | $2604 | 10447 | 119 | 0 |
|  JPM | 02/2023 | 279 | 5716 | 12 | 0 |
|  MBC | 01/2023 | 63713 | $66784 | 0 | (1446) |
|  | 01/2023 | 1200 | 1462 | 11 | 0 |
|  | 02/2023 | 1307 | 986 | 21 | 0 |
|  RBC | 03/2023 | 23 | 1 | 0 | 0 |
|  Total Forward Foreign Currency Contracts | Total Forward Foreign Currency Contracts |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;168 | $&nbsp;&nbsp;&nbsp;&nbsp;(1658) |

---

#### SWAP AGREEMENTS:

#### CREDIT DEFAULT SWAPS ON CORPORATE ISSUES - SELL PROTECTION<sup>(1)</sup>

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Swap Agreements,<br>at Value<sup>(4)</sup> | Swap Agreements,<br>at Value<sup>(4)</sup> |
| **Counterparty** | **Reference Entity** | **Fixed<br>Receive Rate** | **Payment<br>Frequency** | **Maturity<br>Date** | Implied<br>Credit Spread at<br>December 31, 2022<sup>(2)</sup> | Notional<br>Amount<sup>(3)</sup> | Notional<br>Amount<sup>(3)</sup> | Premiums<br>Paid/(Received) | Unrealized<br>Appreciation/<br>(Depreciation) | Asset | Liability |
| BPS | Petrobras Global Finance BV | 1.000% | Quarterly | 12/20/2024 | 1.522% | $— | &nbsp;&nbsp;&nbsp;&nbsp;1000 | $(195) | $185 | $0 | $(10) |
| GST | Petrobras Global Finance BV | 1.000 | Quarterly | 12/20/2024 | 1.522 |  | 1400 | (278) | 265 | 0 | (13) |
| HUS | Petrobras Global Finance BV | 1.000 | Quarterly | 12/20/2024 | 1.522 |  | 1700 | (353) | 337 | 0 | (16) |
| JPM | Banca Monte Dei Paschi Di | 5.000 | Quarterly | 06/20/2025 | 4.967 | EUR | 100 | (2) | 2 | 0 | 0 |
|  Total Swap Agreements | Total Swap Agreements |  |  |  |  |  |  | $&nbsp;&nbsp;&nbsp;&nbsp;(828) | $&nbsp;&nbsp;&nbsp;&nbsp;789 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(39) |

---

#### FINANCIAL DERIVATIVE INSTRUMENTS: OVER THE COUNTER SUMMARY
The following is a summary by counterparty of the market value of OTC financial derivative instruments and collateral pledged/(received) as of December 31, 2022:

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Assets | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | Financial Derivative Liabilities | | | |
| Counterparty | Forward<br>Foreign<br>Currency<br>Contracts | Purchased<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Forward<br>Foreign<br>Currency<br>Contracts | Written<br>Options | Swap<br>Agreements | Total<br>Over the<br>Counter | Net Market<br>Value of OTC<br>Derivatives | **Collateral<br>Pledged/**<br> (Received) | Net<br>Exposure<sup>(5)</sup> |
|  BOA | $0 | $0 | $0 | $0 | $(67) | $0 | $0 | $(67) | $(67) | $48 | $(19) |
|  BPS | 2 | 0 | 0 | 2 | 0 | 0 | (10) | (10) | (8) | 11 | 3 |
|  BRC | 0 | 0 | 0 | 0 | (19) | 0 | 0 | (19) | (19) | 0 | (19) |
|  CBK | 3 | 0 | 0 | 3 | (123) | 0 | 0 | (123) | (120) | 0 | (120) |
|  GLM | 119 | 0 | 0 | 119 | (3) | 0 | 0 | (3) | 116 | 0 | 116 |
|  GST | 0 | 0 | 0 | 0 | 0 | 0 | (13) | (13) | (13) | 117 | 104 |
|  HUS | 0 | 0 | 0 | 0 | 0 | 0 | (16) | (16) | (16) | 0 | (16) |
|  JPM | 12 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 12 | 0 | 12 |
|  MBC | 32 | 0 | 0 | 32 | (1446) | 0 | 0 | (1446) | &nbsp;&nbsp;&nbsp;&nbsp;(1414) | &nbsp;&nbsp;&nbsp;&nbsp;1082 | &nbsp;&nbsp;&nbsp;&nbsp;(332) |
|  Total Over the Counter | $&nbsp;&nbsp;&nbsp;&nbsp;168 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;168 | $&nbsp;&nbsp;&nbsp;&nbsp;(1658) | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(39) | $&nbsp;&nbsp;&nbsp;&nbsp;(1697) |  |  |  |

---

(q) Securities with an aggregate market value of $1,257 have been pledged as collateral for financial derivative instruments as governed by International Swaps and Derivatives Association, Inc. master agreements as of December 31, 2022. 

---

| | | |
|:---|:---|:---|
| **80** | **PIMCO CLOSED-END FUNDS** | See Accompanying Notes |

---

------

---

| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

<sup>(1)</sup> If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. 

<sup>(2)</sup> Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate issues as of period end serve as indicators of the current status of the payment/performance risk and represent the likelihood or risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(3)</sup> The maximum potential amount the Fund could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement. 

<sup>(4)</sup> The prices and resulting values for credit default swap agreements serve as indicators of the current status of the payment/performance risk and represent the likelihood of an expected liability (or profit) for the credit derivative should the notional amount of the swap agreement be closed/sold as of the period end. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the underlying referenced instrument's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. 

<sup>(5)</sup> Net Exposure represents the net receivable/(payable) that would be due from/to the counterparty in the event of default. Exposure from OTC financial derivative instruments can only be netted across transactions governed under the same master agreement with the same legal entity. See Note 8, Master Netting Arrangements, in the Notes to Financial Statements for more information. 

#### FAIR VALUE OF FINANCIAL DERIVATIVE INSTRUMENTS
The following is a summary of the fair valuation of the Fund's derivative instruments categorized by risk exposure. See Note 7, Principal and Other Risks, in the Notes to Financial Statements on risks of the Fund.

Fair Values of Financial Derivative Instruments on the Statements of Assets and Liabilities as of December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $2 | $0 | $0 | $878 | $880 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $168 | $0 | $168 |
|  | $0 | $2 | $0 | $168 | $878 | $1048 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $16 | $0 | $0 | $884 | $900 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $1658 | $0 | $1658 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 39 | 0 | 0 | 0 | 39 |
|  | $0 | $39 | $0 | $1658 | $0 | $1697 |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;55 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;1658 | $&nbsp;&nbsp;&nbsp;&nbsp;884 | $&nbsp;&nbsp;&nbsp;&nbsp;2597 |

---

The effect of Financial Derivative Instruments on the Statements of Operations for the period ended December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments | Derivatives not accounted for as hedging instruments |
|  | Commodity<br>Contracts | Credit<br>Contracts | Equity<br>Contracts | Foreign<br>Exchange<br>Contracts | Interest<br>Rate Contracts | Total |
|  Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments | Net Realized Gain (Loss) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $420 | $0 | $0 | $5083 | $5503 |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $3938 | $0 | $3938 |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 87 | 0 | 0 | 0 | 87 |
|  | $0 | $87 | $0 | $3938 | $0 | $4025 |
|  | $0 | $507 | $0 | $3938 | $5083 | $9528 |
|  Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments | Net Change in Unrealized Appreciation (Depreciation) on Financial Derivative Instruments |
|  Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared | Exchange-traded or centrally cleared |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | $0 | $1624 | $0 | $0 | $(3592) | $(1968) |
|  Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter | Over the counter |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward Foreign Currency Contracts  | $0 | $0 | $0 | $(4065) | $0 | $(4065) |
| &nbsp;&nbsp;&nbsp;&nbsp; Swap Agreements  | 0 | 73 | 0 | 0 | 0 | 73 |
|  | $0 | $73 | $0 | $(4065) | $0 | $(3992) |
|  | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;1697 | $&nbsp;&nbsp;&nbsp;&nbsp;0 | $&nbsp;&nbsp;&nbsp;&nbsp;(4065) | $&nbsp;&nbsp;&nbsp;&nbsp;(3592) | $&nbsp;&nbsp;&nbsp;&nbsp;(5960) |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | SEMIANNUAL REPORT | \| | DECEMBER 31, 2022 | 81.0 |

---

------

---

| | | |
|:---|:---|:---|
| Schedule of Investments | PIMCO Income Strategy Fund II | (Cont.) |

---

#### FAIR VALUE MEASUREMENTS
The following is a summary of the fair valuations according to the inputs used as of December 31, 2022 in valuing the Fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category and Subcategory** | Level 1 | Level 2 | Level 3 | **Fair**<br> **Value at<br>12/31/2022** |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $0 | $164533 | $30324 | $194857 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Banking & Finance | 0 | 65208 | 0 | 65208 |
| &nbsp;&nbsp; Industrials | 0 | 177135 | 0 | 177135 |
| &nbsp;&nbsp; Utilities | 0 | 42095 | 0 | 42095 |
|  Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes | Convertible Bonds & Notes |
| &nbsp;&nbsp; Industrials | 0 | 2139 | 0 | 2139 |
|  Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes | Municipal Bonds & Notes |
| &nbsp;&nbsp; Illinois | 0 | 57 | 0 | 57 |
| &nbsp;&nbsp; Ohio | 0 | 4955 | 0 | 4955 |
| &nbsp;&nbsp; Puerto Rico | 0 | 2405 | 0 | 2405 |
| &nbsp;&nbsp; West Virginia | 0 | 3403 | 0 | 3403 |
|  U.S. Government Agencies | 0 | 5859 | 5013 | 10872 |
|  Non-Agency Mortgage-Backed Securities | 0 | 59406 | 0 | 59406 |
|  Asset-Backed Securities | 0 | 38610 | 4215 | 42825 |
|  Sovereign Issues | 0 | 9749 | 0 | 9749 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | 1373 | 0 | 556 | 1929 |
| &nbsp;&nbsp; Consumer Staples | 78 | 0 | 0 | 78 |
| &nbsp;&nbsp; Energy | 522 | 0 | 72 | 594 |
| &nbsp;&nbsp; Financials | 2149 | 0 | 5596 | 7745 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 17043 | 17043 |
|  Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 0 | 0 | 166 | 166 |
|  Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 0 | 0 | 184 | 184 |
| &nbsp;&nbsp; Information Technology | 0 | 0 | 11452 | 11452 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category and Subcategory** | **Level 1** | **Level 2** | **Level 3** | **Fair**<br> **Value at<br>12/31/2022** |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Banking & Finance | $0 | $14469 | $0 | $14469 |
| &nbsp;&nbsp; Industrials | 0 | 0 | 1859 | 1859 |
|  Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts | Real Estate Investment Trusts |
| &nbsp;&nbsp; Real Estate | 4555 | 0 | 0 | 4555 |
|  Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments | Short-Term Instruments |
| &nbsp;&nbsp; Repurchase Agreements | 0 | 96917 | 0 | 96917 |
| &nbsp;&nbsp; Short-Term Notes | 0 | 14200 | 0 | 14200 |
| &nbsp;&nbsp; Argentina Treasury Bills | 0 | 193 | 0 | 193 |
| &nbsp;&nbsp; U.S. Treasury Bills | 0 | 3153 | 0 | 3153 |
|  Total Investments | $8677 | $704486 | $76480 | $789643 |
|  Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets | Financial Derivative Instruments - Assets |
|  Exchange-traded or centrally cleared | 0 | 880 | 0 | 880 |
|  Over the counter | 0 | 168 | 0 | 168 |
|  | $0 | $1048 | $0 | $1048 |
|  Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities | Financial Derivative Instruments - Liabilities |
|  Exchange-traded or centrally cleared | 0 | (900) | 0 | (900) |
|  Over the counter | 0 | (1697) | 0 | (1697) |
|  | $0 | $(2597) | $0 | $(2597) |
|  Total Financial Derivative Instruments | $0 | $(1549) | $0 | $(1549) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;8677 | $&nbsp;&nbsp;&nbsp;&nbsp;702937 | $&nbsp;&nbsp;&nbsp;&nbsp;76480 | $&nbsp;&nbsp;&nbsp;&nbsp;788094 |

---

The following is a reconciliation of the fair valuations using significant unobservable inputs (Level 3) for the Fund during the period ended December 31, 2022:

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Category and Subcategory | Beginning<br>Balance<br>at 06/30/2022 | Net<br>Purchases | Net<br>Sales/<br>Settlements | Accrued<br>Discounts/<br>(Premiums) | Realized<br>Gain/<br>(Loss) | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<sup>(1)</sup> | Transfers into<br>Level 3 | Transfers out<br>of Level 3 | Ending<br>Balance<br>at 12/31/2022 | Net Change in<br>Unrealized<br>Appreciation/<br>(Depreciation)<br>on Investments<br>Held at<br>12/31/2022<sup>(1)</sup> |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $39148 | $18851 | $(5466) | $(54) | $85 | $(2071) | $12218 | $(32387) | $30324 | $286 |
|  Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes | Corporate Bonds & Notes |
| &nbsp;&nbsp; Industrials | 34383 | 569 | 0 | 61 | 0 | (1872) | 0 | (33141) | 0 | 0 |
|  U.S. Government Agencies | 5030 | 0 | (62) | 11 | 21 | 13 | 0 | 0 | 5013 | 10 |
|  Asset-Backed Securities | 5798 | 0 | (474) | 14 | (1307) | 184 | 0 | 0 | 4215 | (1116) |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp; Communication Services | 716 | 0 | 0 | 0 | 0 | (160) | 0 | 0 | 556 | (160) |
| &nbsp;&nbsp; Energy | 30 | 0 | 0 | 0 | 0 | 42 | 0 | 0 | 72 | 41 |
| &nbsp;&nbsp; Financials | 6529 | 0 | 0 | 0 | 0 | (933) | 0 | 0 | 5596 | (933) |
| &nbsp;&nbsp; Industrials | 16285 | 136 | 0 | 0 | 0 | 622 | 0 | 0 | 17043 | 622 |
| &nbsp;&nbsp; Materials | 27 | 0 | (29) | 0 | 29 | (27) | 0 | 0 | 0 | 0 |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp; Financials | 117 | 0 | 0 | 0 | 0 | 49 | 0 | 0 | 166 | 49 |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp; Financials | 123 | 0 | 0 | 0 | 0 | 61 | 0 | 0 | 184 | 61 |
| &nbsp;&nbsp; Industrials | 490 | 0 | (99) | 0 | 99 | (490) | 0 | 0 | 0 | 0 |
| &nbsp;&nbsp; Information Technology | 12063 | 0 | 0 | 0 | 0 | (611) | 0 | 0 | 11452 | (611) |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp; Industrials | 31984 | 0 | (36612) | 0 | 20354 | (13867) | 0 | 0 | 1859 | (235) |
|  Totals | $&nbsp;&nbsp;&nbsp;&nbsp;152723 | $&nbsp;&nbsp;&nbsp;&nbsp;19556 | $&nbsp;&nbsp;&nbsp;&nbsp;(42742) | $&nbsp;&nbsp;&nbsp;&nbsp;32 | $&nbsp;&nbsp;&nbsp;&nbsp;19281 | $&nbsp;&nbsp;&nbsp;&nbsp;(19060) | $&nbsp;&nbsp;&nbsp;&nbsp;12218 | $&nbsp;&nbsp;&nbsp;&nbsp;(65528) | $&nbsp;&nbsp;&nbsp;&nbsp;76480 | $&nbsp;&nbsp;&nbsp;&nbsp;(1986) |

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| | | |
|:---|:---|:---|
| 82.0 | PIMCO CLOSED-END FUNDS | See Accompanying Notes |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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The following is a summary of significant unobservable inputs used in the fair valuations of assets and liabilities categorized within Level 3 of the fair value hierarchy:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Category and Subcategory** | Ending<br>Balance<br>at 12/31/2022 | **Valuation<br>Technique** | **Unobservable<br>Inputs** | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) | (% Unless Noted Otherwise) |
| **Category and Subcategory** | Ending<br>Balance<br>at 12/31/2022 | **Valuation<br>Technique** | **Unobservable<br>Inputs** | Input Value(s) | Input Value(s) | Weighted<br>Average |
|  Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value | Investments in Securities, at Value |
|  Loan Participations and Assignments | $6179 | Discounted Cash Flow | Discount Spread |  | 9.080 |  |
|  | 5781 | Proxy Pricing | Base Price |  | 95.286 |  |
|  | 18364 | Third Party Vendor | Broker Quote |  | 35.000-87.500 | &nbsp;&nbsp;&nbsp;&nbsp;68.865 |
|  U.S. Government Agencies | 5013 | Discounted Cash Flow | Discount Rate |  | 12.000 |  |
|  Asset-Backed Securities | 4215 | Discounted Cash Flow | Discount Rate |  | 10.000-20.000 | 15.614 |
|  Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks | Common Stocks |
| &nbsp;&nbsp;&nbsp;&nbsp; Communication Services | 556 | Reference Instrument | Stock Price W/Liquidity Discount |  | 10.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Energy | 72 | Market Comparable Valuation | EBITDA Multiple |  | 4.600 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 5596 | Indicative Market Quotation | Price | $— | 24.000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 14598 | Market Comparable Valuation /<br>Discounted Cash Flow | Revenue \| EBITDA Multiple /<br>Discount Rate |  | 0.620\|6.160/10.000 |  |
|  | 2046 | Discounted Cash Flow | Discount Rate |  | 11.590 |  |
|  | 399 | Indicative Market Quotation | Price | $— | 7.500 |  |
|  Rights | Rights | Rights | Rights | Rights | Rights | Rights |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 166 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
|  Warrants | Warrants | Warrants | Warrants | Warrants | Warrants | Warrants |
| &nbsp;&nbsp;&nbsp;&nbsp; Financials | 1 | Indicative Market Quotation | Price | $— | 2.000-3.500 | 3.200 |
|  | 183 | Other Valuation Techniques<sup>(2)</sup> |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Information Technology | 11452 | Market Comparable Valuation | EBITDA Multiple |  | 4.500 |  |
|  Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities | Preferred Securities |
| &nbsp;&nbsp;&nbsp;&nbsp; Industrials | 1859 | Market Comparable Valuation /<br>Discounted Cash Flow | TBV Multiple/Discount Rate |  | 0.370/24.820 |  |
|  Total | $&nbsp;&nbsp;&nbsp;&nbsp;76480 |  |  |  |  |  |

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<sup>(1)</sup> Any difference between Net Change in Unrealized Appreciation/(Depreciation) and Net Change in Unrealized Appreciation/(Depreciation) on Investments Held at December 31, 2022 may be due to an investment no longer held or categorized as Level 3 at period end. 

<sup>(2)</sup> Includes valuation techniques not defined in the Notes to Financial Statements as securities valued using such techniques are not considered significant to the Fund. 

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| | | | | |
|:---|:---|:---|:---|:---|
| See Accompanying Notes | **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **83** |

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Notes to Financial Statements

1. ORGANIZATION

PIMCO Corporate & Income Opportunity Fund, PIMCO Corporate & Income Strategy Fund, PIMCO High Income Fund, PIMCO Income Strategy Fund and PIMCO Income Strategy Fund II (each a "Fund" and collectively the "Funds") are organized as closed-end management investment companies registered under the Investment Company Act of 1940, as amended, and the rules and regulations thereunder (the "Act"). Each Fund was organized as a Massachusetts business trust on the dates shown in the table below. Pacific Investment Management Company LLC ("PIMCO" or the "Manager") serves as the Funds' investment manager.

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| | | |
|:---|:---|:---|
| Fund Name | Formation Date | Formation Date |
|  PIMCO Corporate & Income Opportunity Fund |  | September 13, 2002 |
|  PIMCO Corporate & Income Strategy Fund |  | October 17, 2001 |
|  PIMCO High Income Fund |  | February 18, 2003 |
|  PIMCO Income Strategy Fund |  | June 19, 2003 |
|  PIMCO Income Strategy Fund II |  | June 30, 2004 |

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Hereinafter, the Board of Trustees of the Funds shall be collectively referred to as the "Board."

2. SIGNIFICANT ACCOUNTING POLICIES

The following is a summary of significant accounting policies consistently followed by each Fund in the preparation of its financial statements in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP"). Each Fund is treated as an investment company under the reporting requirements of U.S. GAAP. The functional and reporting currency for the Funds is the U.S. dollar. The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates.

(a) Securities Transactions and Investment Income Securities transactions are recorded as of the trade date for financial reporting purposes. Securities purchased or sold on a when-issued or delayed-delivery basis may be settled beyond a standard settlement period for the security after the trade date. Realized gains (losses) from securities sold are recorded on the identified cost basis. Dividend income is recorded on the ex-dividend date, except certain dividends from foreign securities where the ex-dividend date may have passed, which are recorded as soon as a Fund is informed of the ex-dividend date. Interest income, adjusted for the accretion of discounts and amortization of premiums, is recorded on the accrual basis from settlement date, with the exception of securities with a forward starting effective date, where interest income is recorded on the accrual basis

from effective date. For convertible securities, premiums attributable to the conversion feature are not amortized. Estimated tax liabilities on certain foreign securities are recorded on an accrual basis and are reflected as components of interest income or net change in unrealized appreciation (depreciation) on investments on the Statements of Operations, as appropriate. Tax liabilities realized as a result of such security sales are reflected as a component of net realized gain (loss) on investments on the Statements of Operations. Paydown gains (losses) on mortgage-related and other asset-backed securities, if any, are recorded as components of interest income on the Statements of Operations. Income or short-term capital gain distributions received from registered investment companies, if any, are recorded as dividend income. Long-term capital gain distributions received from registered investment companies, if any, are recorded as realized gains.

Debt obligations may be placed on non-accrual status and related interest income may be reduced by ceasing current accruals and writing off interest receivable when the collection of all or a portion of interest has become doubtful based on consistently applied procedures. A debt obligation is removed from non-accrual status when the issuer resumes interest payments or when collectability of interest is probable.

(b) Foreign Currency Translation The market values of foreign securities, currency holdings and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars based on the current exchange rates each business day. Purchases and sales of securities and income and expense items denominated in foreign currencies, if any, are translated into U.S. dollars at the exchange rate in effect on the transaction date. The Funds do not separately report the effects of changes in foreign exchange rates from changes in market prices on securities held. Such changes are included in net realized gain (loss) and net change in unrealized appreciation (depreciation) from investments on the Statements of Operations. The Funds may invest in foreign currency-denominated securities and may engage in foreign currency transactions either on a spot (cash) basis at the rate prevailing in the currency exchange market at the time or through a forward foreign currency contract. Realized foreign exchange gains (losses) arising from sales of spot foreign currencies, currency gains (losses) realized between the trade and settlement dates on securities transactions and the difference between the recorded amounts of dividends, interest, and foreign withholding taxes and the U.S. dollar equivalent of the amounts actually received or paid are included in net realized gain (loss) on foreign currency transactions on the Statements of Operations. Net unrealized foreign exchange gains (losses) arising from changes in foreign exchange rates on foreign denominated assets and liabilities other than investments in securities held at the end of the reporting period are included in net change in unrealized appreciation (depreciation) on foreign currency assets and liabilities on the Statements of Operations.

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| | |
|:---|:---|
| **84** | **PIMCO CLOSED-END FUNDS** |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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(c) Distributions — Common Shares The following table shows the anticipated frequency of distributions from net investment income to common shareholders.

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| | | | |
|:---|:---|:---|:---|
| | Distribution Frequency | Distribution Frequency | Distribution Frequency |
|  **Fund Name** |  | Declared | Distributed |
|  PIMCO Corporate & Income Opportunity Fund |  | Monthly | Monthly |
|  PIMCO Corporate & Income Strategy Fund |  | Monthly | Monthly |
|  PIMCO High Income Fund |  | Monthly | Monthly |
|  PIMCO Income Strategy Fund |  | Monthly | Monthly |
|  PIMCO Income Strategy Fund II |  | Monthly | Monthly |

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Each Fund intends to distribute at least annually to its shareholders all or substantially all of its net tax-exempt interest and any investment company taxable income, and may distribute its net capital gain. A Fund may revise its distribution policy or postpone the payment of distributions at any time.

As of the end of the fiscal year, none of the Funds were in default on long-term debt or had any accumulated dividend in arrears.

A Fund may engage in investment strategies, including those that employ the use of derivatives, to, among other things, seek to generate current, distributable income without regard to possible declines in the Fund's net asset value ("NAV"). A Fund's income and gain generating strategies, including certain derivatives strategies, may generate current, distributable income, even if such strategies could potentially result in declines in the Fund's NAV. A Fund's income and gain generating strategies, including certain derivatives strategies, may generate current income and gains taxable as ordinary income sufficient to support monthly distributions even in situations when the Fund has experienced a decline in net assets due to, for example, adverse changes in the broad U.S. or non-U.S. equity markets or the Fund's debt investments, or arising from its use of derivatives. A Fund may enter into opposite sides of interest rate swap and other derivatives for the principal purpose of generating distributable gains on the one side (characterized as ordinary income for tax purposes) that are not part of the Fund's duration or yield curve management strategies, and with a substantial possibility that the Fund will experience a corresponding capital loss and decline in NAV with respect to the opposite side transaction (to the extent it does not have corresponding offsetting capital gains). Consequently, common shareholders may receive distributions and owe tax on amounts that are effectively a taxable return of the shareholder's investment in the Fund at a time when their investment in a Fund has declined in value, which may be taxed at ordinary income rates. The tax treatment of certain derivatives in which a Fund invests may be unclear and thus subject to recharacterization. Any recharacterization of payments made or received by a Fund pursuant to derivatives potentially could affect the amount, timing or character of Fund distributions. In addition, the

tax treatment of such investment strategies may be changed by regulation or otherwise.

Income distributions and capital gain distributions are determined in accordance with income tax regulations which may differ from U.S. GAAP. Differences between tax regulations and U.S. GAAP may cause timing differences between income and capital gain recognition. Further, the character of investment income and capital gains may be different for certain transactions under the two methods of accounting. As a result, income distributions and capital gain distributions declared during a fiscal period may differ significantly from the net investment income (loss) and realized gains (losses) reported on each Fund's annual financial statements presented under U.S. GAAP.

Separately, if a Fund determines or estimates, as applicable, that a portion of a distribution may be comprised of amounts from sources other than net investment income in accordance with its policies, accounting records (if applicable), and accounting practices, the Fund will notify shareholders of the estimated composition of such distribution through a Section 19 Notice. For these purposes, a Fund determines or estimates, as applicable, the source or sources from which a distribution is paid, to the close of the period as of which it is paid, in reference to its internal accounting records and related accounting practices. If, based on such accounting records and practices, it is determined or estimated, as applicable, that a particular distribution does not include capital gains or paid-in surplus or other capital sources, a Section 19 Notice generally would not be issued. It is important to note that differences exist between a Fund's daily internal accounting records and practices, a Fund's financial statements presented in accordance with U.S. GAAP, and recordkeeping practices under income tax regulations. For instance, a Fund's internal accounting records and practices may take into account, among other factors, tax-related characteristics of certain sources of distributions that differ from treatment under U.S. GAAP. Examples of such differences may include, but are not limited to, for certain Funds, the treatment of periodic payments under interest rate swap contracts. Accordingly, among other consequences, it is possible that a Fund may not issue a Section 19 Notice in situations where a Fund's financial statements prepared later and in accordance with U.S. GAAP and/or the final tax character of those distributions might later report that the sources of those distributions included capital gains and/or a return of capital. Please visit www.pimco.com for the most recent Section 19 Notice, if applicable, for additional information regarding the estimated composition of distributions. Final determination of a distribution's tax character will be provided to shareholders when such information is available.

Distributions classified as a tax basis return of capital at a Fund's fiscal year end, if any, are reflected on the Statements of Changes in Net

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **85** |

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| | |
|:---|:---|
| Notes to Financial Statements | (Cont.) |

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Assets and have been recorded to paid in capital on the Statements of Assets and Liabilities. In addition, other amounts have been reclassified between distributable earnings (accumulated loss) and paid in capital on the Statements of Assets and Liabilities to more appropriately conform U.S. GAAP to tax characterizations of distributions.

(d) New Accounting Pronouncements and Regulatory Updates In March 2020, the Financial Accounting Standards Board ("FASB") issued an Accounting Standards Update ("ASU"), ASU 2020-04, which provides optional guidance to ease the potential accounting burden associated with transitioning away from LIBOR and other reference rates that are expected to be discontinued. ASU 2020-04 is effective for certain reference rate-related contract modifications that occurred during the period March 12, 2020 through December 31, 2022. In March 2021, the administrator for LIBOR announced the extension of the publication of a majority of the USD LIBOR settings to June 30, 2023. In December 2022, FASB issued ASU 2022-06, which includes amendments to extend the duration of the LIBOR transition relief to December 31, 2024, after which entities will no longer be permitted to apply the reference rate reform relief. Management is continuously evaluating the potential effect a discontinuation of LIBOR could have on the Funds' investments and has determined that it is unlikely the ASU's adoption will have a material impact on the Funds' financial statements.

In October 2020, the U.S. Securities and Exchange Commission ("SEC") adopted a rule related to the use of derivatives, short sales, reverse repurchase agreements and certain other transactions by registered investment companies that rescinds and withdraws the guidance of the SEC and its staff regarding asset segregation and cover transactions. Subject to certain exceptions, the rule requires funds that trade derivatives and other transactions that create future payment or delivery obligations to comply with a value-at-risk leverage limit and certain derivatives risk management program and reporting requirements. The effective date for the rule was February 19, 2021. The compliance date for the new rule and the related reporting requirements was August 19, 2022. Management has implemented changes in connection with the rule and has determined that there is no material impact to the Funds' financial statements.

In December 2020, the SEC adopted a rule addressing fair valuation of fund investments. The new rule sets forth requirements for good faith determinations of fair value as well as for the performance of fair value determinations, including related oversight and reporting obligations. The new rule also defines "readily available market quotations" for purposes of the definition of "value" under the Act, and the SEC noted that this definition would apply in all contexts under the Act. The effective date for the rule was March 8, 2021. The compliance date for the new rule and the related reporting requirements was September 8,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

2022. Management has implemented changes in connection with the rule and has determined that there is no material impact to the Funds' financial statements.

In June 2022, the FASB issued ASU 2022-03, Fair Value Measurement (Topic 820), which affects all entities that have investments in equity securities measured at fair value that are subject to a contractual sale restriction. The amendments in ASU 2022-03 clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring the fair value. The amendments also require additional disclosures for equity securities subject to contractual sale restrictions that are measured at fair value in accordance with Topic 820. The effective date for the amendments in ASU 2022-03 is for fiscal years beginning after December 15, 2023 and interim periods within those fiscal years. At this time, management is evaluating the implications of these changes on the financial statements.

In October 2022, the SEC adopted changes to the mutual fund and ETF shareholder report and registration statement disclosure requirements and the registered fund advertising rules, which will change the disclosures provided to shareholders. The rule is effective as of January 24, 2023, but the SEC is providing an 18-month compliance period after the effective date other than for rule amendments addressing fee and expense information in advertisements that might be materially misleading. At this time, management is evaluating the implications of these changes on the financial statements.

3. INVESTMENT VALUATION AND FAIR VALUE MEASUREMENTS

(a) Investment Valuation Policies The NAV of a Fund's shares, or each of their respective share classes as applicable, is determined by dividing the total value of portfolio investments and other assets attributable to the Funds or class, less any liabilities, as applicable, by the total number of shares outstanding.

On each day that the New York Stock Exchange ("NYSE") is open, the Funds' shares are ordinarily valued as of the close of regular trading (normally 4:00 p.m., Eastern time) ("NYSE Close"). Information that becomes known to the Funds or their agents after the time as of which NAV has been calculated on a particular day will not generally be used to retroactively adjust the price of a security or the NAV determined earlier that day. If regular trading on the NYSE closes earlier than scheduled, each Fund may calculate its NAV as of the earlier closing time or calculate its NAV as of the NYSE Close for that day. Each Fund generally does not calculate its NAV on days on which the NYSE is not open for business. If the NYSE is closed on a day it would normally be open for business, each Fund may calculate its NAV as of the NYSE Close for such day or such other time that the Funds may determine.

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| | |
|:---|:---|
| **86** | **PIMCO CLOSED-END FUNDS** |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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For purposes of calculating NAV, portfolio securities and other assets for which market quotations are readily available are valued at market value. A market quotation is readily available only when that quotation is a quoted price (unadjusted) in active markets for identical investments that the Fund can access at the measurement date, provided that a quotation will not be readily available if it is not reliable. Market value is generally determined on the basis of official closing prices or the last reported sales prices. The Funds will normally use pricing data for domestic equity securities received shortly after the NYSE Close and do not normally take into account trading, clearances or settlements that take place after the NYSE Close. A foreign (non-U.S.) equity security traded on a foreign exchange or on more than one exchange is typically valued using pricing information from the exchange considered by PIMCO to be the primary exchange. If market value pricing is used, a foreign (non-U.S.) equity security will be valued as of the close of trading on the foreign exchange, or the NYSE Close, if the NYSE Close occurs before the end of trading on the foreign exchange.

Investments for which market quotations are not readily available are valued at fair value as determined in good faith pursuant to Rule 2a-5 under the Act. As a general principle, the fair value of a security or other asset is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Pursuant to Rule 2a-5, the Board has designated PIMCO as the valuation designee ("Valuation Designee") for each Fund to perform the fair value determination relating to all Fund investments. PIMCO may carry out its designated responsibilities as Valuation Designee through various teams and committees. The Valuation Designee's policies and procedures govern the Valuation Designee's selection and application of methodologies for determining and calculating the fair value of Fund investments. The Valuation Designee may value Fund portfolio securities for which market quotations are not readily available and other Fund assets utilizing inputs from pricing services, quotation reporting systems, valuation agents and other third-party sources (together, "Pricing Sources").

Domestic and foreign (non-U.S.) fixed income securities, non-exchange traded derivatives, and equity options are normally valued on the basis of quotes obtained from brokers and dealers or Pricing Sources using data reflecting the earlier closing of the principal markets for those securities. Prices obtained from Pricing Sources may be based on, among other things, information provided by market makers or estimates of market values obtained from yield data relating to investments or securities with similar characteristics. Certain fixed income securities purchased on a delayed-delivery basis are marked to market daily until settlement at the forward settlement date. Exchange-traded options, except equity options, futures and options on futures are valued at the settlement price determined by the relevant

exchange. Swap agreements are valued on the basis of bid quotes obtained from brokers and dealers or market-based prices supplied by Pricing Sources. With respect to any portion of a Fund's assets that are invested in one or more open-end management investment companies (other than ETFs), the Fund's NAV will be calculated based on the NAVs of such investments.

If a foreign (non-U.S.) equity security's value has materially changed after the close of the security's primary exchange or principal market but before the NYSE Close, the security may be valued at fair value. Foreign (non-U.S.) equity securities that do not trade when the NYSE is open are also valued at fair value. With respect to foreign (non-U.S.) equity securities, a Fund may determine the fair value of investments based on information provided by Pricing Sources, which may recommend fair value or adjustments with reference to other securities, indexes or assets. In considering whether fair valuation is required and in determining fair values, the Valuation Designee may, among other things, consider significant events (which may be considered to include changes in the value of U.S. securities or securities indexes) that occur after the close of the relevant market and before the NYSE Close. A Fund may utilize modeling tools provided by third-party vendors to determine fair values of foreign (non-U.S.) securities. For these purposes, unless otherwise determined by the Valuation Designee, any movement in the applicable reference index or instrument ("zero trigger") between the earlier close of the applicable foreign market and the NYSE Close may be deemed to be a significant event, prompting the application of the pricing model (effectively resulting in daily fair valuations). Foreign exchanges may permit trading in foreign (non-U.S.) equity securities on days when a Fund is not open for business, which may result in a Fund's portfolio investments being affected when shareholders are unable to buy or sell shares.

Whole loans may be fair valued using inputs that take into account borrower- or loan-level data (e.g., credit risk of the borrower) that is updated periodically throughout the life of each individual loan; any new borrower- or loan-level data received in written reports periodically by the Fund normally will be taken into account in calculating the NAV. The Fund's whole loan investments, including those originated by the Fund, generally are fair valued in accordance with procedures approved by the Board.

Investments valued in currencies other than the U.S. dollar are converted to the U.S. dollar using exchange rates obtained from Pricing Sources. As a result, the value of such investments and, in turn, the NAV of a Fund's shares may be affected by changes in the value of currencies in relation to the U.S. dollar. The value of investments traded in markets outside the United States or denominated in currencies other than the U.S. dollar may be affected significantly on a day that a Fund is not open for business. As a result, to the extent that a Fund

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **87** |

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| | |
|:---|:---|
| Notes to Financial Statements | (Cont.) |

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holds foreign (non-U.S.) investments, the value of those investments may change at times when shareholders are unable to buy or sell shares and the value of such investments will be reflected in the Fund's next calculated NAV.

Fair valuation may require subjective determinations about the value of a security. While the Funds' and Valuation Designee's policies and procedures are intended to result in a calculation of a Fund's NAV that fairly reflects security values as of the time of pricing, a Fund cannot ensure that fair values accurately reflect the price that a Fund could obtain for a security if it were to dispose of that security as of the time of pricing (for instance, in a forced or distressed sale). The prices used by a Fund may differ from the value that would be realized if the securities were sold.

(b) Fair Value Hierarchy U.S. GAAP describes fair value as the price that a Fund would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date. It establishes a fair value hierarchy that prioritizes inputs to valuation methods and requires disclosure of the fair value hierarchy, separately for each major category of assets and liabilities, that segregates fair value measurements into levels (Level 1, 2, or 3). The inputs or methodology used for valuing securities are not necessarily an indication of the risks associated with investing in those securities. Levels 1, 2, and 3 of the fair value hierarchy are defined as follows:

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| | |
|:---|:---|
| <sup>∎</sup> | Level 1 — Quoted prices (unadjusted) in active markets or exchanges for identical assets and liabilities. |

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| | |
|:---|:---|
| <sup>∎</sup> | Level 2 — Significant other observable inputs, which may include, but are not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market corroborated inputs. |

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| | |
|:---|:---|
| <sup>∎</sup> | Level 3 — Significant unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available, which may include assumptions made by the Valuation Designee that are used in determining the fair value of investments. |

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Assets or liabilities categorized as Level 2 or 3 as of period end have been transferred between Levels 2 and 3 since the prior period due to changes in the method utilized in valuing the investments. Transfers from Level 2 to Level 3 are a result of a change, in the normal course of business, from the use of methods used by Pricing Sources (Level 2) to the use of a Broker Quote or valuation technique which utilizes significant unobservable inputs due to an absence of current or reliable market-based data (Level 3). Transfers from Level 3 to Level 2 are a

result of the availability of current and reliable market-based data provided by Pricing Sources or other valuation techniques which utilize significant observable inputs. In accordance with the requirements of U.S. GAAP, the amounts of transfers into and out of Level 3, if material, are disclosed in the Notes to Schedule of Investments for each respective Fund.

For fair valuations using significant unobservable inputs, U.S. GAAP requires a reconciliation of the beginning to ending balances for reported fair values that presents changes attributable to realized gain (loss), unrealized appreciation (depreciation), purchases and sales, accrued discounts (premiums), and transfers into and out of the Level 3 category during the period. The end of period value is used for the transfers between Levels of a Fund's assets and liabilities. Additionally, U.S. GAAP requires quantitative information regarding the significant unobservable inputs used in the determination of fair value of assets or liabilities categorized as Level 3 in the fair value hierarchy. In accordance with the requirements of U.S. GAAP, a fair value hierarchy, and if material, a Level 3 reconciliation and details of significant unobservable inputs, have been included in the Notes to Schedule of Investments for each respective Fund.

(c) Valuation Techniques and the Fair Value Hierarchy Level 1, Level 2 and Level 3 trading assets and trading liabilities, at fair value The valuation methods (or "techniques") and significant inputs used in determining the fair values of portfolio securities or other assets and liabilities categorized as Level 1, Level 2 and Level 3 of the fair value hierarchy are as follows:

Common stocks, ETFs, exchange-traded notes and financial derivative instruments, such as futures contracts, rights and warrants, or options on futures that are traded on a national securities exchange, are stated at the last reported sale or settlement price on the day of valuation. To the extent these securities are actively traded and valuation adjustments are not applied, they are categorized as Level 1 of the fair value hierarchy.

Investments in registered open-end investment companies (other than ETFs) will be valued based upon the NAVs of such investments and are categorized as Level 1 of the fair value hierarchy. Investments in unregistered open-end investment companies will be calculated based upon the NAVs of such investments and are considered Level 1 provided that the NAVs are observable, calculated daily and are the value at which both purchases and sales will be conducted.

Fixed income securities including corporate, convertible and municipal bonds and notes, U.S. government agencies, U.S. treasury obligations, sovereign issues, bank loans, convertible preferred securities and non-U.S. bonds are normally valued on the basis of quotes obtained

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| | |
|:---|:---|
| **88** | **PIMCO CLOSED-END FUNDS** |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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from brokers and dealers or Pricing Sources that use broker-dealer quotations, reported trades or valuation estimates from their internal pricing models. The Pricing Sources' internal models use inputs that are observable such as issuer details, interest rates, yield curves, prepayment speeds, credit risks/spreads, default rates and quoted prices for similar assets. Securities that use similar valuation techniques and inputs as described above are categorized as Level 2 of the fair value hierarchy.

Fixed income securities purchased on a delayed-delivery basis or as a repurchase commitment in a sale-buyback transaction are marked to market daily until settlement at the forward settlement date and are categorized as Level 2 of the fair value hierarchy.

Mortgage-related and asset-backed securities are usually issued as separate tranches, or classes, of securities within each deal. These securities are also normally valued by Pricing Sources that use broker-dealer quotations, reported trades or valuation estimates from their internal pricing models. The pricing models for these securities usually consider tranche-level attributes, current market data, estimated cash flows and market-based yield spreads for each tranche, and incorporate deal collateral performance, as available. Mortgage-related and asset-backed securities that use similar valuation techniques and inputs as described above are categorized as Level 2 of the fair value hierarchy.

Valuation adjustments may be applied to certain securities that are solely traded on a foreign exchange to account for the market movement between the close of the foreign market and the NYSE Close. These securities are valued using Pricing Sources that consider the correlation of the trading patterns of the foreign security to the intraday trading in the U.S. markets for investments. Securities using these valuation adjustments are categorized as Level 2 of the fair value hierarchy. Preferred securities and other equities traded on inactive markets or valued by reference to similar instruments are also categorized as Level 2 of the fair value hierarchy.

Valuation adjustments may be applied to certain exchange traded futures and options to account for market movement between the exchange settlement and the NYSE close. These securities are valued using quotes obtained from a quotation reporting system, established market makers or Pricing Sources. Financial derivatives using these valuation adjustments are categorized as Level 2 of the fair value hierarchy.

Equity exchange-traded options and over the counter financial derivative instruments, such as forward foreign currency contracts and options contracts derive their value from underlying asset prices, indices, reference rates, and other inputs or a combination of these factors. These contracts are normally valued on the basis of quotes

obtained from a quotation reporting system, established market makers or Pricing Sources (normally determined as of the NYSE Close). Depending on the product and the terms of the transaction, financial derivative instruments can be valued by Pricing Sources using a series of techniques, including simulation pricing models. The pricing models use inputs that are observed from actively quoted markets such as quoted prices, issuer details, indices, bid/ask spreads, interest rates, implied volatilities, yield curves, dividends and exchange rates. Financial derivative instruments that use similar valuation techniques and inputs as described above are categorized as Level 2 of the fair value hierarchy.

Centrally cleared swaps and over the counter swaps derive their value from underlying asset prices, indices, reference rates, and other inputs or a combination of these factors. They are valued using a broker-dealer bid quotation or on market-based prices provided by Pricing Sources (normally determined as of the NYSE Close). Centrally cleared swaps and over the counter swaps can be valued by Pricing Sources using a series of techniques, including simulation pricing models. The pricing models may use inputs that are observed from actively quoted markets such as the overnight index swap rate, LIBOR forward rate, interest rates, yield curves and credit spreads. These securities are categorized as Level 2 of the fair value hierarchy.

Proxy pricing procedures set the base price of a fixed income security and subsequently adjust the price proportionally to market value changes of a pre-determined security deemed to be comparable in duration, generally a U.S. Treasury or sovereign note based on country of issuance. The base price may be a broker-dealer quote, transaction price, or an internal value as derived by analysis of market data. The base price of the security may be reset on a periodic basis based on the availability of market data and procedures approved by the Valuation Oversight Committee. Significant changes in the unobservable inputs of the proxy pricing process (the base price) would result in direct and proportional changes in the fair value of the security. These securities are categorized as Level 3 of the fair value hierarchy.

If third-party evaluated vendor pricing is not available or not deemed to be indicative of fair value, the Manager may elect to obtain Broker Quotes directly from the broker-dealer or passed through from a third-party vendor. In the event that fair value is based upon a single sourced Broker Quote, these securities are categorized as Level 3 of the fair value hierarchy. Broker Quotes are typically received from established market participants. Although independently received, the Manager does not have the transparency to view the underlying inputs which support the market quotation. Significant changes in the Broker Quote would have direct and proportional changes in the fair value of the security.

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Reference instrument valuation estimates fair value by utilizing the correlation of the security to one or more broad-based securities, market indices, and/or other financial instruments, whose pricing information is readily available. Unobservable inputs may include those used in algorithms based on percentage change in the reference instruments and/or weights of each reference instrument. Significant changes in the unobservable inputs would result in direct and proportional changes in the fair value of the security. These securities are categorized as Level 2 or Level 3 of the fair value hierarchy depending on the source or input of the reference instrument.

Expected recovery valuation estimates that the fair value of an existing asset can be recovered, net of any liability. Significant changes in the unobservable inputs would result in direct and proportional changes in the fair value of the security. These securities are categorized as Level 3 of the fair value hierarchy.

The Discounted Cash Flow model is based on future cash flows generated by the investment and may be normalized based on expected investment performance. Future cash flows are discounted to present value using an appropriate rate of return, typically calibrated to the initial transaction date and adjusted based on Capital Asset Pricing Model and/or other market-based inputs. Significant changes in the unobservable inputs would result in direct and proportional changes in the fair value of the security. These securities are categorized as Level 3 of the fair value hierarchy.

The Comparable Companies model is based on application of valuation multiples from publicly traded comparable companies to the financials of the subject company. Adjustments may be made to the market-derived valuation multiples based on differences between the comparable companies and the subject company. Significant changes in the unobservable inputs would result in direct and proportional changes in the fair value of the security. These securities are categorized as Level 3 of the fair value hierarchy.

Short-term debt instruments (such as commercial paper) having a remaining maturity of 60 days or less may be valued at amortized cost, so long as the amortized cost value of such short-term debt instruments is approximately the same as the fair value of the instrument as determined without the use of amortized cost valuation. These securities are categorized as Level 2 or Level 3 of the fair value hierarchy depending on the source of the base price.

When a fair valuation method is applied by PIMCO that uses significant unobservable inputs, investments will be priced by a method that the Valuation Designee believes reflects fair value and are categorized as Level 3 of the fair value hierarchy.

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4. SECURITIES AND OTHER INVESTMENTS

Investments in Securities

The Funds may utilize the investments and strategies described below to the extent permitted by each Fund's respective investment policies.

Inflation-Indexed Bonds are fixed income securities whose principal value is periodically adjusted by the rate of inflation. The interest rate on these bonds is generally fixed at issuance at a rate lower than typical bonds. Over the life of an inflation-indexed bond, however, interest will be paid based on a principal value which is adjusted for inflation. Any increase or decrease in the principal amount of an inflation-indexed bond will be included as interest income on the Consolidated Statement of Operations, even though investors do not receive their principal until maturity. Repayment of the original bond principal upon maturity (as adjusted for inflation) is guaranteed in the case of U.S. Treasury Inflation-Protected Securities ("TIPS"). For bonds that do not provide a similar guarantee, the adjusted principal value of the bond repaid at maturity may be less than the original principal.

Loans and Other Indebtedness, Loan Participations and Assignments are direct debt instruments which are interests in amounts owed to lenders or lending syndicates by corporate, governmental, or other borrowers. A Fund's investments in loans may be in the form of direct investments, participations in loans or assignments of all or a portion of loans from third parties or exposure to investments in loans through investments in a mutual fund or other pooled investment vehicle. A loan is often administered by a bank or other financial institution (the "agent") that acts as agent for all holders. The agent administers the terms of the loan, as specified in the loan agreement. A Fund may invest in multiple series or tranches of a loan, which may have varying terms and carry different associated risks. A Fund generally has no right to enforce compliance with the terms of the loan agreement with the borrower. As a result, a Fund may be subject to the credit risk of both the borrower and the agent that is selling the loan agreement.

In the event of the insolvency of the agent selling a participation, a Fund may be treated as a general creditor of the agent and may not benefit from any set-off between the agent and the borrower. When a Fund purchases assignments from agents it acquires direct rights against the borrowers of the loans. These loans may include participations in bridge loans, which are loans taken out by borrowers for a short period (typically less than one year) pending arrangement of more permanent financing through, for example, the issuance of bonds, frequently high yield bonds issued for the purpose of acquisitions.

Investments in loans are generally subject to risks similar to those of investments in other types of debt obligations, including, among others, credit risk, interest rate risk, variable and floating rate securities

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risk, and risks associated with mortgage-related securities. In addition, in many cases loans are subject to the risks associated with below investment grade securities. The Funds may be subject to heightened or additional risks and potential liabilities and costs by investing in mezzanine and other subordinated loans, including those arising under bankruptcy, fraudulent conveyance, equitable subordination, environmental and other laws and regulations, and risks and costs associated with debt servicing and taking foreclosure actions associated with the loans.

Additionally, because loans are not ordinarily registered with the SEC or any state securities commission or listed on any securities exchange, there is usually less publicly available information about such instruments. In addition, loans may not be considered "securities" for purposes of the anti-fraud provisions under the federal securities laws and, as a result, as a purchaser of these instruments, a Fund may not be entitled to the anti-fraud protections of the federal securities laws. In the course of investing in such instruments, a Fund may come into possession of material nonpublic information and, because of prohibitions on trading in securities of issuers while in possession of such information, the Fund may be unable to enter into a transaction in a publicly-traded security of that issuer when it would otherwise be advantageous for the Fund to do so. Alternatively, a Fund may choose not to receive material nonpublic information about an issuer of such loans, with the result that the Fund may have less information about such issuers than other investors who transact in such assets.

The types of loans and related investments in which the Funds may invest include, among others, senior loans, subordinated loans (including second lien loans, B-Notes and mezzanine loans), whole loans, commercial real estate and other commercial loans and structured loans. The Funds may acquire direct interests in loans through primary loan distributions and/or in private transactions. In the case of subordinated loans, there may be significant indebtedness ranking ahead of the borrower's obligation to the holder of such a loan, including in the event of the borrower's insolvency. Mezzanine loans are typically secured by a pledge of an equity interest in the mortgage borrower that owns the real estate rather than an interest in a mortgage.

Investments in loans may include unfunded loan commitments, which are contractual obligations for future funding. Unfunded loan commitments may include revolving credit facilities, which may obligate a Fund to supply additional cash to the borrower on demand. Unfunded loan commitments represent a future obligation in full, even though a percentage of the committed amount may not be utilized by the borrower. When investing in a loan participation, a Fund has the right to receive payments of principal, interest and any fees to which it is entitled only from the agent selling the loan agreement and only upon receipt of payments by the agent from the borrower. Because

investing in unfunded loan commitments creates a future obligation for a Fund to provide funding to a borrower upon demand in exchange for a fee, the Fund will segregate or earmark liquid assets with the Fund's custodian in amounts sufficient to satisfy any such future obligations. A Fund may receive a commitment fee based on the undrawn portion of the underlying line of credit portion of a loan. In certain circumstances, a Fund may receive a penalty fee upon the prepayment of a loan by a borrower. Fees earned or paid are recorded as a component of interest income or interest expense, respectively, on the Statements of Operations. Unfunded loan commitments, if any, are reflected as a liability on the Statements of Assets and Liabilities.

Mortgage-Related and Other Asset-Backed Securities directly or indirectly represent a participation in, or are secured by and payable from, loans on real property. Mortgage-related securities are created from pools of residential or commercial mortgage loans, including mortgage loans made by savings and loan institutions, mortgage bankers, commercial banks and others. These securities typically provide a monthly payment which consists of both principal and interest. Interest may be determined by fixed or adjustable rates. In times of declining interest rates, there is a greater likelihood that a Fund's higher yielding securities will be pre-paid with the Fund being unable to reinvest the proceeds in an investment with as great a yield. The rate of prepayments on underlying mortgages will affect the price and volatility of a mortgage-related security, and may have the effect of shortening or extending the effective duration of the security relative to what was anticipated at the time of purchase. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments. The timely payment of principal and interest of certain mortgage-related securities is guaranteed with the full faith and credit of the U.S. Government. Pools created and guaranteed by non-governmental issuers, including government-sponsored corporations, may be supported by various forms of insurance or guarantees, but there can be no assurance that private insurers or guarantors can meet their obligations under the insurance policies or guarantee arrangements. Many of the risks of investing in mortgage-related securities secured by commercial mortgage loans reflect the effects of local and other economic conditions on real estate markets, the ability of tenants to make lease payments, and the ability of a property to attract and retain tenants. These securities may be less liquid and may exhibit greater price volatility than other types of mortgage-related or other asset-backed securities. Other asset-backed securities are created from many types of assets, including, but not limited to, auto loans, accounts receivable, such as credit card receivables and hospital account receivables, home equity loans, student loans, boat loans, mobile home loans, recreational vehicle loans, manufactured housing loans, aircraft leases,

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computer leases and syndicated bank loans. The Funds may invest in any level of the capital structure of an issuer of mortgage-backed or asset-backed securities, including the equity or "first loss" tranche.

Collateralized Debt Obligations ("CDOs") include Collateralized Bond Obligations ("CBOs"), Collateralized Loan Obligations ("CLOs") and other similarly structured securities. CBOs and CLOs are types of asset-backed securities. A CBO is a trust which is typically backed by a diversified pool of high risk, below investment grade fixed income securities. A CLO is a trust typically collateralized by a pool of loans, which may include, among others, domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. For both CBOs and CLOs, the cash flows from the trust are split into two or more portions, called tranches, varying in risk and yield. The riskiest portion is the "equity" tranche which bears the bulk of defaults from the bonds or loans in the trust and serves to protect the other, more senior tranches from default in all but the most severe circumstances. Since it is partially protected from defaults, a senior tranche from a CBO trust or CLO trust typically has higher ratings and lower yields than the underlying securities, and can be rated investment grade. Despite the protection from the equity tranche, CBO or CLO tranches can experience substantial losses due to actual defaults, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults and aversion to CBO or CLO securities as a class. The risks of an investment in a CDO depend largely on the type of the collateral securities and the class of the CDO in which a Fund invests. CDOs carry additional risks including, but not limited to, (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments, (ii) the collateral may decline in value or default, (iii) the risk that a Fund may invest in CDOs that are subordinate to other classes, and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results.

Collateralized Mortgage Obligations ("CMOs") are debt obligations of a legal entity that are collateralized by whole mortgage loans or private mortgage bonds and divided into classes. CMOs are structured into multiple classes, often referred to as "tranches," with each class bearing a different stated maturity and entitled to a different schedule for payments of principal and interest, including prepayments. CMOs may be less liquid and may exhibit greater price volatility than other types of mortgage-related or asset-backed securities.

As CMOs have evolved, some classes of CMO bonds have become more common. For example, a Fund may invest in parallel-pay and planned amortization class ("PAC") CMOs and multi-class pass-through certificates. Parallel-pay CMOs and multi-class pass-through

certificates are structured to provide payments of principal on each payment date to more than one class. These simultaneous payments are taken into account in calculating the stated maturity date or final distribution date of each class, which, as with other CMO and multi-class pass-through structures, must be retired by its stated maturity date or final distribution date but may be retired earlier. PACs generally require payments of a specified amount of principal on each payment date. PACs are parallel-pay CMOs with the required principal amount on such securities having the highest priority after interest has been paid to all classes. Any CMO or multi-class pass-through structure that includes PAC securities must also have support tranches — known as support bonds, companion bonds or non-PAC bonds — which lend or absorb principal cash flows to allow the PAC securities to maintain their stated maturities and final distribution dates within a range of actual prepayment experience. These support tranches are subject to a higher level of maturity risk compared to other mortgage-related securities, and usually provide a higher yield to compensate investors. If principal cash flows are received in amounts outside a pre-determined range such that the support bonds cannot lend or absorb sufficient cash flows to the PAC securities as intended, the PAC securities are subject to heightened maturity risk. A Fund may invest in various tranches of CMO bonds, including support bonds and equity or "first loss" tranches (see "Collateralized Debt Obligations" above).

Stripped Mortgage-Backed Securities ("SMBS") are derivative multi-class mortgage securities. SMBS are usually structured with two classes that receive different proportions of the interest and principal distributions on a pool of mortgage assets. An SMBS will have one class that will receive all of the interest (the interest-only or "IO" class), while the other class will receive the entire principal (the principal-only or "PO" class). IOs and POs can be extremely volatile in response to changes in interest rates. As interest rates rise and fall, the value of IOs tends to move in the same direction as interest rates. POs perform best when prepayments on the underlying mortgages rise since this increases the rate at which the principal is returned and the yield to maturity on the PO. When payments on mortgages underlying a PO are slower than anticipated, the life of the PO is lengthened and the yield to maturity is reduced. The yield to maturity on an IO class is extremely sensitive to the rate of principal payments (including prepayments) on the related underlying mortgage assets, and a rapid rate of principal payments may have a material adverse effect on a Fund's yield to maturity from these securities. If the underlying mortgage assets experience greater than anticipated prepayments of principal, the Funds may fail to recoup some or all of its initial investment in these securities even if the security is in one of the highest rating categories.

Payments received for IOs are included in interest income on the Statements of Operations. Because no principal will be received at the maturity of an IO, adjustments are made to the cost of the security on a

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monthly basis until maturity. These adjustments are included in interest income on the Statements of Operations. Payments received for POs are treated as reductions to the cost and par value of the securities.

Payment In-Kind Securities may give the issuer the option at each interest payment date of making interest payments in either cash and/or additional debt securities. Those additional debt securities usually have the same terms, including maturity dates and interest rates, and associated risks as the original bonds. The daily market quotations of the original bonds may include the accrued interest (referred to as a dirty price) and require a pro rata adjustment from the unrealized appreciation (depreciation) on investments to interest receivable on the Statements of Assets and Liabilities.

Perpetual Bonds are fixed income securities with no maturity date but pay a coupon in perpetuity (with no specified ending or maturity date). Unlike typical fixed income securities, there is no obligation for perpetual bonds to repay principal. The coupon payments, however, are mandatory. While perpetual bonds have no maturity date, they may have a callable date in which the perpetuity is eliminated and the issuer may return the principal received on the specified call date. Additionally, a perpetual bond may have additional features, such as interest rate increases at periodic dates or an increase as of a predetermined point in the future.

Real Estate Investment Trusts ("REITs") are pooled investment vehicles that own, and typically operate, income-producing real estate. If a REIT meets certain requirements, including distributing to shareholders substantially all of its taxable income (other than net capital gains), then it is not taxed on the income distributed to shareholders. Distributions received from REITs may be characterized as income, capital gain or a return of capital. A return of capital is recorded by a Fund as a reduction to the cost basis of its investment in the REIT. REITs are subject to management fees and other expenses, and so the Funds that invest in REITs will bear their proportionate share of the costs of the REITs' operations.

Restricted Investments are subject to legal or contractual restrictions on resale and may generally be sold privately, but may be required to be registered or exempted from such registration before being sold to the public. Private placement securities are generally considered to be restricted except for those securities traded between qualified institutional investors under the provisions of Rule 144A of the Securities Act of 1933. Disposal of restricted investments may involve time-consuming negotiations and expenses, and prompt sale at an acceptable price may be difficult to achieve. Restricted investments held by the Funds as of December 31, 2022, as applicable, are disclosed in the Notes to Schedules of Investments.

Securities Issued by U.S. Government Agencies or Government-Sponsored Enterprises are obligations of and, in certain cases, guaranteed by, the U.S. Government, its agencies or instrumentalities. Some U.S. Government securities, such as Treasury bills, notes and bonds, and securities guaranteed by the Government National Mortgage Association, are supported by the full faith and credit of the U.S. Government; others, such as those of the Federal Home Loan Banks, are supported by the right of the issuer to borrow from the U.S. Department of the Treasury (the "U.S. Treasury"); and others, such as those of the Federal National Mortgage Association ("FNMA" or "Fannie Mae"), are supported by the discretionary authority of the U.S. Government to purchase the agency's obligations. U.S. Government securities may include zero coupon securities which do not distribute interest on a current basis and tend to be subject to a greater risk than interest-paying securities of similar maturities.

Government-related guarantors (i.e., not backed by the full faith and credit of the U.S. Government) include FNMA and the Federal Home Loan Mortgage Corporation ("FHLMC" or "Freddie Mac"). FNMA is a government-sponsored corporation. FNMA purchases conventional (i.e., not insured or guaranteed by any government agency) residential mortgages from a list of approved seller/servicers which include state and federally chartered savings and loan associations, mutual savings banks, commercial banks and credit unions and mortgage bankers. Pass-through securities issued by FNMA are guaranteed as to timely payment of principal and interest by FNMA, but are not backed by the full faith and credit of the U.S. Government. FHLMC issues Participation Certificates ("PCs"), which are pass-through securities, each representing an undivided interest in a pool of residential mortgages. FHLMC guarantees the timely payment of interest and ultimate collection of principal, but PCs are not backed by the full faith and credit of the U.S. Government. Instead, they are supported only by the discretionary authority of the U.S. Government to purchase the agency's obligations.

In June 2019, FNMA and FHLMC started issuing Uniform Mortgage Backed Securities in place of their current offerings of TBA-eligible securities (the "Single Security Initiative"). The Single Security Initiative seeks to support the overall liquidity of the TBA market and aligns the characteristics of FNMA and FHLMC certificates. The effects that the Single Security Initiative may have on the market for TBA and other mortgage-backed securities are uncertain.

Roll-timing strategies can be used where a Fund seeks to extend the expiration or maturity of a position, such as a TBA security on an underlying asset, by closing out the position before expiration and opening a new position with respect to substantially the same underlying asset with a later expiration date. TBA securities purchased or sold are reflected on the Statements of Assets and Liabilities as an

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asset or liability, respectively. Recently finalized FINRA rules include mandatory margin requirements for the TBA market that require the Funds to post collateral in connection with their TBA transactions. There is no similar requirement applicable to the Funds' TBA counterparties. The required collateralization of TBA trades could increase the cost of TBA transactions to the Funds and impose added operational complexity.

Warrants are securities that are usually issued together with a debt security or preferred security and that give the holder the right to buy a proportionate amount of common stock at a specified price. Warrants normally have a life that is measured in years and entitle the holder to buy common stock of a company at a price that is usually higher than the market price at the time the warrant is issued. Warrants may entail greater risks than certain other types of investments. Generally, warrants do not carry the right to receive dividends or exercise voting rights with respect to the underlying securities, and they do not represent any rights in the assets of the issuer. In addition, their value does not necessarily change with the value of the underlying securities, and they cease to have value if they are not exercised on or before their expiration date. If the market price of the underlying stock does not exceed the exercise price during the life of the warrant, the warrant will expire worthless. Warrants may increase the potential profit or loss to be realized from the investment as compared with investing the same amount in the underlying securities. Similarly, the percentage increase or decrease in the value of an equity security warrant may be greater than the percentage increase or decrease in the value of the underlying common stock. Warrants may relate to the purchase of equity or debt securities. Debt obligations with warrants attached to purchase equity securities have many characteristics of convertible securities and their prices may, to some degree, reflect the performance of the underlying stock. Debt obligations also may be issued with warrants attached to purchase additional debt securities at the same coupon rate. A decline in interest rates would permit a Fund to sell such warrants at a profit. If interest rates rise, these warrants would generally expire with no value.

5. BORROWINGS AND OTHER FINANCING TRANSACTIONS

The Funds may enter into the borrowings and other financing transactions described below to the extent permitted by each Fund's respective investment policies.

The following disclosures contain information on a Fund's ability to lend or borrow cash or securities to the extent permitted under the Act, which may be viewed as borrowing or financing transactions by a Fund. The location of these instruments in each Fund's financial statements is described below.

(a) Repurchase Agreements Under the terms of a typical repurchase agreement, a Fund purchases an underlying debt obligation (collateral)

subject to an obligation of the seller to repurchase, and a Fund to resell, the obligation at an agreed-upon price and time. In an open maturity repurchase agreement, there is no pre-determined repurchase date and the agreement can be terminated by a Fund or counterparty at any time. The underlying securities for all repurchase agreements are held by a Fund's custodian or designated subcustodians under tri-party repurchase agreements and in certain instances will remain in custody with the counterparty. The market value of the collateral must be equal to or exceed the total amount of the repurchase obligations, including interest. Repurchase agreements, if any, including accrued interest, are included on the Statements of Assets and Liabilities. Interest earned is recorded as a component of interest income on the Statements of Operations. In periods of increased demand for collateral, a Fund may pay a fee for the receipt of collateral, which may result in interest expense to the Fund.

(b) Reverse Repurchase Agreements In a reverse repurchase agreement, a Fund delivers a security in exchange for cash to a financial institution, the counterparty, with a simultaneous agreement to repurchase the same or substantially the same security at an agreed upon price and date. In an open maturity reverse repurchase agreement, there is no pre-determined repurchase date and the agreement can be terminated by a Fund or counterparty at any time. A Fund is entitled to receive principal and interest payments, if any, made on the security delivered to the counterparty during the term of the agreement. Cash received in exchange for securities delivered plus accrued interest payments to be made by a Fund to counterparties are reflected as a liability on the Statements of Assets and Liabilities. Interest payments made by a Fund to counterparties are recorded as a component of interest expense on the Statements of Operations. In periods of increased demand for the security, a Fund may receive a fee for use of the security by the counterparty, which may result in interest income to the Fund. In the event the buyer of securities under a reverse repurchase agreement files for bankruptcy or becomes insolvent, a Fund's use of the proceeds of the agreement may be restricted pending a determination by the other party, or its trustee or receiver, whether to enforce a Fund's obligation to repurchase the securities. Reverse repurchase agreements involve leverage risk and also the risk that the market value of the securities to be repurchased may decline below the repurchase price.

6. FINANCIAL DERIVATIVE INSTRUMENTS

The Funds may enter into the financial derivative instruments described below to the extent permitted by each Fund's respective investment policies.

The following disclosures contain information on how and why the Funds use financial derivative instruments, and how financial derivative instruments affect the Funds' financial position, results of operations and cash flows. The location and fair value amounts of these

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instruments on the Statements of Assets and Liabilities and the net realized gain (loss) and net change in unrealized appreciation (depreciation) on the Statements of Operations, each categorized by type of financial derivative contract and related risk exposure, are included in a table in the Notes to Schedules of Investments. The financial derivative instruments outstanding as of period end and the amounts of net realized gain (loss) and net change in unrealized appreciation (depreciation) on financial derivative instruments during the period, as disclosed in the Notes to Schedules of Investments, serve as indicators of the volume of financial derivative activity for the Funds.

PIMCO Corporate & Income Opportunity Fund is subject to regulation as a commodity pool under the Commodity Exchange Act by the Commodity Futures Trading Commission (the "CFTC"). The Manager has registered with the CFTC as a Commodity Pool Operator and a Commodity Trading Adviser with respect to the Fund, and is a member of the National Futures Association. As a result, additional CFTC-mandated disclosure, reporting and recordkeeping obligations apply to PIMCO Corporate & Income Opportunity Fund.

(a) Forward Foreign Currency Contracts may be engaged, in connection with settling planned purchases or sales of securities, to hedge the currency exposure associated with some or all of a Fund's securities or as part of an investment strategy. A forward foreign currency contract is an agreement between two parties to buy and sell a currency at a set price on a future date. The market value of a forward foreign currency contract fluctuates with changes in foreign currency exchange rates. Forward foreign currency contracts are marked to market daily, and the change in value is recorded by a Fund as an unrealized gain (loss). Realized gains (losses) are equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed and are recorded upon delivery or receipt of the currency. These contracts may involve market risk in excess of the unrealized gain (loss) reflected on the Statements of Assets and Liabilities. In addition, a Fund could be exposed to risk if the counterparties are unable to meet the terms of the contracts or if the value of the currency changes unfavorably to the U.S. dollar. To mitigate such risk, cash or securities may be exchanged as collateral pursuant to the terms of the underlying contracts.

(b) Swap Agreements are bilaterally negotiated agreements between a Fund and a counterparty to exchange or swap investment cash flows, assets, foreign currencies or market-linked returns at specified, future intervals. Swap agreements may be privately negotiated in the over the counter market ("OTC swaps") or may be cleared through a third party, known as a central counterparty or derivatives clearing organization ("Centrally Cleared Swaps"). A Fund may enter into asset, credit default, cross-currency, interest rate, total return, variance and other forms of swap agreements to manage its exposure to credit, currency,

interest rate, commodity, equity and inflation risk. In connection with these agreements, securities or cash may be identified as collateral or margin in accordance with the terms of the respective swap agreements to provide assets of value and recourse in the event of default or bankruptcy/insolvency.

Centrally Cleared Swaps are marked to market daily based upon valuations as determined from the underlying contract or in accordance with the requirements of the central counterparty or derivatives clearing organization. Changes in market value, if any, are reflected as a component of net change in unrealized appreciation (depreciation) on the Statements of Operations. Daily changes in valuation of centrally cleared swaps, if any, are disclosed within centrally cleared financial derivative instruments on the Statements of Assets and Liabilities. Centrally Cleared and OTC swap payments received or paid at the beginning of the measurement period are included on the Statements of Assets and Liabilities and represent premiums paid or received upon entering into the swap agreement to compensate for differences between the stated terms of the swap agreement and prevailing market conditions (credit spreads, currency exchange rates, interest rates, and other relevant factors). Upfront premiums received (paid) are initially recorded as liabilities (assets) and subsequently marked to market to reflect the current value of the swap. These upfront premiums are recorded as realized gain (loss) on the Statements of Operations upon termination or maturity of the swap. A liquidation payment received or made at the termination of the swap is recorded as realized gain (loss) on the Statements of Operations. Net periodic payments received or paid by a Fund are included as part of realized gain (loss) on the Statements of Operations.

For purposes of a Fund's investment policy adopted pursuant to Rule 35d-1 under the Act (if any), the Fund will account for derivative instruments at market value. For purposes of applying a Fund's other investment policies and restrictions, swap agreements, like other derivative instruments, may be valued by a Fund at market value, notional value or full exposure value. In the case of a credit default swap, in applying certain of a Fund's investment policies and restrictions, the Funds will value the credit default swap at its notional value or its full exposure value (i.e., the sum of the notional amount for the contract plus the market value), but may value the credit default swap at market value for purposes of applying certain of a Fund's other investment policies and restrictions. For example, a Fund may value credit default swaps at full exposure value for purposes of a Fund's credit quality guidelines (if any) because such value in general better reflects a Fund's actual economic exposure during the term of the credit default swap agreement. As a result, a Fund may, at times, have notional exposure to an asset class (before netting) that is greater or lesser than the stated limit or restriction noted in a Fund's prospectus.

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **95** |

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|:---|:---|
| Notes to Financial Statements | (Cont.) |

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In this context, both the notional amount and the market value may be positive or negative depending on whether a Fund is selling or buying protection through the credit default swap. The manner in which certain securities or other instruments are valued by a Fund for purposes of applying investment policies and restrictions may differ from the manner in which those investments are valued by other types of investors.

Entering into swap agreements involves, to varying degrees, elements of interest, credit, market and documentation risk in excess of the amounts recognized on the Statements of Assets and Liabilities. Such risks involve the possibility that there will be no liquid market for these agreements, that the counterparty to the agreements may default on its obligation to perform or disagree as to the meaning of contractual terms in the agreements and that there may be unfavorable changes in interest rates or the values of the asset upon which the swap is based.

A Fund's maximum risk of loss from counterparty credit risk is the discounted net value of the cash flows to be received from the counterparty over the contract's remaining life, to the extent that amount is positive. The risk may be mitigated by having a master netting arrangement between a Fund and the counterparty and by the posting of collateral to a Fund to cover a Fund's exposure to the counterparty.

To the extent a Fund has a policy to limit the net amount owed to or to be received from a single counterparty under existing swap agreements, such limitation only applies to counterparties to OTC swaps and does not apply to centrally cleared swaps where the counterparty is a central counterparty or derivatives clearing organization.

Credit Default Swap Agreements on corporate, loan, sovereign, U.S. municipal or U.S. Treasury issues are entered into to provide a measure of protection against defaults of the issuers (*i.e.*, to reduce risk where a Fund owns or has exposure to the referenced obligation) or to take an active long or short position with respect to the likelihood of a particular issuer's default. Credit default swap agreements involve one party making a stream of payments (referred to as the buyer of protection) to another party (the seller of protection) in exchange for the right to receive a specified return in the event that the referenced entity, obligation or index, as specified in the swap agreement, undergoes a certain credit event. As a seller of protection on credit default swap agreements, a Fund will generally receive from the buyer of protection a fixed rate of income throughout the term of the swap provided that there is no credit event. As the seller, a Fund would effectively add leverage to its portfolio because, in addition to its total net assets, a Fund would be subject to investment exposure on the notional amount of the swap.

If a Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, a Fund will either

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash, securities or other deliverable obligations equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. If a Fund is a buyer of protection and a credit event occurs, as defined under the terms of that particular swap agreement, a Fund will either (i) receive from the seller of protection an amount equal to the notional amount of the swap and deliver the referenced obligation, other deliverable obligations or underlying securities comprising the referenced index or (ii) receive a net settlement amount in the form of cash or securities equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index. Recovery values are estimated by market makers considering either industry standard recovery rates or entity specific factors and considerations until a credit event occurs. If a credit event has occurred, the recovery value is determined by a facilitated auction whereby a minimum number of allowable broker bids, together with a specified valuation method, are used to calculate the settlement value. The ability to deliver other obligations may result in a cheapest-to-deliver option (the buyer of protection's right to choose the deliverable obligation with the lowest value following a credit event).

Credit default swap agreements on corporate or sovereign issues involve one party making a stream of payments to another party in exchange for the right to receive a specified return in the event of a default or other credit event. If a credit event occurs and cash settlement is not elected, a variety of other deliverable obligations may be delivered in lieu of the specific referenced obligation. The ability to deliver other obligations may result in a cheapest-to-deliver option (the buyer of protection's right to choose the deliverable obligation with the lowest value following a credit event).

Credit default swap agreements on credit indices involve one party making a stream of payments to another party in exchange for the right to receive a specified return in the event of a write-down, principal shortfall, interest shortfall or default of all or part of the referenced entities comprising the credit index. A credit index is a basket of credit instruments or exposures designed to be representative of some part of the credit market as a whole. These indices are made up of reference credits that are judged by a poll of dealers to be the most liquid entities in the credit default swap market based on the sector of the index. Components of the indices may include, but are not limited to, investment grade securities, high yield securities, asset-backed securities, emerging markets, and/or various credit ratings within each sector. Credit indices are traded using credit default swaps with

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| | |
|:---|:---|
| **96** | **PIMCO CLOSED-END FUNDS** |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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standardized terms including a fixed spread and standard maturity dates. An index credit default swap references all the names in the index, and if there is a default, the credit event is settled based on that name's weight in the index. The composition of the indices changes periodically, usually every six months, and for most indices, each name has an equal weight in the index. Credit default swaps on credit indices may be used to hedge a portfolio of credit default swaps or bonds, which is less expensive than it would be to buy many credit default swaps to achieve a similar effect. Credit default swaps on indices are instruments for protecting investors owning bonds against default, and traders use them to speculate on changes in credit quality.

Implied credit spreads, represented in absolute terms, utilized in determining the market value of credit default swap agreements on corporate, loan, sovereign, U.S. municipal or U.S. Treasury issues as of period end, if any, are disclosed in the Notes to Schedules of Investments. They serve as an indicator of the current status of payment/performance risk and represent the likelihood or risk of default for the reference entity. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include upfront payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement. For credit default swap agreements on asset-backed securities and credit indices, the quoted market prices and resulting values serve as the indicator of the current status of the payment/performance risk. Increasing market values, in absolute terms when compared to the notional amount of the swap, represent a deterioration of the referenced entity's credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the agreement.

The maximum potential amount of future payments (undiscounted) that a Fund as a seller of protection could be required to make under a credit default swap agreement equals the notional amount of the agreement. Notional amounts of each individual credit default swap agreement outstanding as of period end for which a Fund is the seller of protection are disclosed in the Notes to Schedules of Investments. These potential amounts would be partially offset by any recovery values of the respective referenced obligations, upfront payments received upon entering into the agreement, or net amounts received from the settlement of buy protection credit default swap agreements entered into by a Fund for the same referenced entity or entities.

Interest Rate Swap Agreements may be entered into to help hedge against interest rate risk exposure and to maintain a Fund's ability to generate income at prevailing market rates. The value of the fixed rate bonds that the Funds hold may decrease if interest rates rise. To help hedge

against this risk and to maintain its ability to generate income at prevailing market rates, a Fund may enter into interest rate swap agreements. Interest rate swap agreements involve the exchange by a Fund with another party for their respective commitment to pay or receive interest on the notional amount of principal. Certain forms of interest rate swap agreements may include: (i) interest rate caps, under which, in return for a premium, one party agrees to make payments to the other to the extent that interest rates exceed a specified rate, or "cap," (ii) interest rate floors, under which, in return for a premium, one party agrees to make payments to the other to the extent that interest rates fall below a specified rate, or "floor," (iii) interest rate collars, under which a party sells a cap and purchases a floor or vice versa in an attempt to protect itself against interest rate movements exceeding given minimum or maximum levels, (iv) callable interest rate swaps, under which the buyer pays an upfront fee in consideration for the right to early terminate the swap transaction in whole, at zero cost and at a predetermined date and time prior to the maturity date, (v) spreadlocks, which allow the interest rate swap users to lock in the forward differential (or spread) between the interest rate swap rate and a specified benchmark, or (vi) basis swaps, under which two parties can exchange variable interest rates based on different segments of money markets.

Total Return Swap Agreements are entered into to gain or mitigate exposure to the underlying reference asset. Total return swap agreements involve commitments where single or multiple cash flows are exchanged based on the price of an underlying reference asset and on a fixed or variable interest rate. Total return swap agreements may involve commitments to pay interest in exchange for a market-linked return. One counterparty pays out the total return of a specific underlying reference asset, which may include a single security, a basket of securities, or an index, and in return receives a fixed or variable rate. At the maturity date, a net cash flow is exchanged where the total return is equivalent to the return of the underlying reference asset less a financing rate, if any. As a receiver, a Fund would receive payments based on any net positive total return and would owe payments in the event of a net negative total return. As the payer, a Fund would owe payments on any net positive total return, and would receive payments in the event of a net negative total return.

7. PRINCIPAL AND OTHER RISKS

(a) Principal Risks

In the normal course of business, the Funds trade financial instruments and enter into financial transactions where risk of potential loss exists due to such things as changes in the market (market risk) or failure or inability of the other party to a transaction to perform (credit and counterparty risk).

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **97** |

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Notes to Financial Statements (Cont.)

See below for a detailed description of select principal risks. For a complete list of the principal risks the Funds may be subject to, please see the Principal Risks of the Funds section of the Fund's annual report dated June 30, 2022.

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | PIMCO<br>Corporate &<br>Income<br>Opportunity<br>Fund (PTY) | PIMCO<br>Corporate &<br>Income<br>Strategy<br>Fund (PCN) | **PIMCO<br>High<br>Income<br>Fund<br>(PHK)** | PIMCO<br>Income<br>Strategy<br>Fund (PFL) | PIMCO<br>Income<br>Strategy<br>Fund II<br>(PFN) |
|  Asset Allocation Risk | X | X | X | X | X |
|  Call Risk | X | X | X | X | X |
|  Risk of Investing in China |  |  | X |  |  |
|  Collateralized Bond Obligations, Collateralized Loan Obligations and Collateralized Debt Obligations Risk |  |  | X |  |  |
|  Collateralized Loan Obligations Risk | X | X |  | X | X |
|  Confidential Information Access Risk | X | X | X | X | X |
|  Contingent Convertible Securities Risk | X | X | X | X | X |
|  Convertible Securities Risk | X | X | X | X | X |
|  Counterparty Risk | X | X | X | X | X |
|  "Covenant-lite" Obligations Risk | X | X | X | X | X |
|  Credit Default Swaps Risk | X | X | X | X | X |
|  Credit Risk | X | X | X | X | X |
|  Currency Risk | X | X | X | X | X |
|  Cyber Security Risk | X | X | X | X | X |
|  Debt Securities Risk | X | X | X | X | X |
|  Derivatives Risk | X | X | X | X | X |
|  Distressed and Defaulted Securities Risk | X | X | X | X | X |
|  Distribution Rate Risk | X | X | X | X | X |
|  Emerging Markets Risk | X | X | X | X | X |
|  Equity Securities and Related Market Risk | X | X | X | X | X |
|  Focused Investment Risk |  | X | X | X | X |
|  Foreign (Non-U.S.) Investment Risk | X | X | X | X | X |
|  High Yield Securities Risk | X | X | X | X | X |
|  Inflation/Deflation Risk | X | X | X | X | X |
|  Inflation-Indexed Security Risk | X | X | X | X | X |
|  Interest Rate Risk | X | X | X | X | X |
|  Issuer Risk | X | X | X | X | X |
|  Leverage Risk | X | X | X | X | X |
|  Liquidity Risk | X | X | X | X | X |
|  Loans and Other Indebtedness; Loan Participations and Assignments Risk | X | X | X | X | X |
|  Management Risk | X | X | X | X | X |
|  Market Discount Risk | X | X | X | X | X |
|  Market Disruptions Risk | X | X | X | X | X |
|  Market Risk | X | X | X | X | X |
|  Mortgage-Related and Other Asset-Backed Instruments Risk | X | X | X | X | X |
|  Mortgage-Related Derivative Instruments Risk |  |  | X |  |  |
|  Operational Risk | X | X | X | X | X |
|  Other Investment Companies Risk | X | X | X | X | X |
|  Platform Risk |  |  | X |  |  |
|  Potential Conflicts of Interest Risk — Allocation of Investment Opportunities | X | X | X | X | X |
|  Portfolio Turnover Risk | X | X | X | X | X |
|  Preferred Securities Risk | X | X | X | X | X |
|  Privacy and Data Security Risk |  | X | X |  |  |
|  Private Placements Risk | X | X | X | X | X |
|  Privately-Issued Mortgage-Related Securities Risk | X | X | X | X | X |
|  Real Estate Risk | X | X | X | X | X |
|  Reinvestment Risk | X | X | X | X | X |
|  REIT Risk |  |  | X |  |  |
|  Regulatory Changes Risk | X | X | X | X | X |
|  Regulatory Risk — Commodity Pool Operator | X | X | X | X | X |

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| | |
|:---|:---|
| **98** | **PIMCO CLOSED-END FUNDS** |

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December 31, 2022 (Unaudited)

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **PIMCO<br>Corporate &<br>Income<br>Opportunity<br>Fund (PTY)** | **PIMCO<br>Corporate &<br>Income<br>Strategy<br>Fund (PCN)** | **PIMCO<br>High<br>Income<br>Fund<br>(PHK)** | **PIMCO<br>Income<br>Strategy<br>Fund (PFL)** | **PIMCO<br>Income<br>Strategy<br>Fund II<br>(PFN)** |
|  Regulatory Risk — London Interbank Offered Rate | X | X | X | X | X |
|  Repurchase Agreements Risk | X | X | X | X | X |
|  Restricted Securities Risk | X | X | X | X | X |
|  Risk Retention Investment Risk |  |  | X |  |  |
|  Securities Lending Risk |  | X | X |  |  |
|  Senior Debt Risk | X | X | X | X | X |
|  Short Exposure Risk |  |  | X |  |  |
|  Smaller Company Risk |  | X | X |  |  |
|  Sovereign Debt Risk | X | X | X | X | X |
|  Special Purpose Acquisition Companies ("SPACs") Risk |  |  | X |  |  |
|  Structured Investments Risk | X | X | X | X | X |
|  Subprime Risk | X | X | X | X | X |
|  Subsidiary Risk |  |  | X |  |  |
|  Synthetic Convertible Securities Risk | X | X | X | X | X |
|  Tax Risk | X | X | X | X | X |
|  U.S. Government Securities Risk | X | X | X | X | X |
|  Valuation Risk | X | X | X | X | X |
|  Zero-Coupon Bond, Step-Ups and Payment-in-Kind Securities Risk | X | X | X | X | X |

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Asset Allocation Risk is the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions. A Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines.

Call Risk is the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (*e.g.*, declining interest rates, changes in credit spreads and improvements in the issuer's credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features.

Risk of Investing in China is the risk of investing in securities of companies domiciled in the People's Republic of China ("China" or the

"PRC"), which may involve a high degree of risk and special considerations not typically associated with investing in the U.S. securities markets. Such heightened risks include, among others, an authoritarian government, popular unrest associated with demands for improved political, economic and social conditions, the impact of regional conflict on the economy and hostile relations with neighboring countries.

In addition, there is less regulation and monitoring of the securities markets and the activities of investors, brokers and other participants in China than in the United States. Accordingly, issuers of securities in China are not subject to the same degree of regulation as those in the

United States with respect to such matters as insider trading rules, tender offer regulations, stockholder proxy requirements and the requirements mandating timely and accurate disclosure of information.

Collateralized Bond Obligations, Collateralized Loan Obligations and Collateralized Debt Obligations Risk is the risk that an investment in a CLO, CBO or other CDO depends largely on the type of the collateral securities and the class/tranche of the instrument in which the Fund invests. In addition to the normal risks associated with debt instruments (e.g., interest rate risk and credit risk), CLOs, CBOs and CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from the collateral will not be adequate to make interest or other payments; (ii) the risk that the quality of the collateral may decline in value or default; (iii) the risk that the Fund may invest in CBOs, CLOs or other CDOs that are subordinate to other classes; and (iv) the risk that the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or others and may produce unexpected investment results.

Collateralized Loan Obligations Risk is the risk of investing in a trust typically collateralized by a pool of loans issued by banks, corporations or any other public or private entity or person, which may include, among others, domestic and foreign senior secured loans, senior unsecured loans and subordinate or mezzanine loans, including loans that may be rated below investment grade or equivalent unrated loans ("Collateralized Loan Obligations Risk") or ("CLOs"). In addition to the normal risks associated with debt instruments (e.g., interest rate risk and credit risk), CLOs carry additional risks including, but not limited to: (i) the possibility that distributions from the collateral will not be

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **99** |

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Notes to Financial Statements (Cont.)

adequate to make interest or other payments; (ii) the risk that the quality of the collateral may decline in value or default; (iii) the risk that the Fund may invest in CBOs, CLOs or other CDOs that are subordinate to other classes; and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or others and may produce unexpected investment results.

Confidential Information Access Risk is the risk that, in managing the Fund (and other PIMCO clients), PIMCO may from time to time have the opportunity to receive material, non-public information ("Confidential Information") about the issuers of certain investments, including, without limitation, senior floating rate loans, other loans and related investments being considered for acquisition by the Fund or held in the Fund's portfolio. If PIMCO intentionally or unintentionally comes into possession of Confidential Information, it may be unable, potentially for a substantial period of time, to purchase or sell investments to which such Confidential Information relates.

Contingent Convertible Securities Risk is the risk of investing in contingent convertible securities, including the risk that interest payments will be cancelled by the issuer or a regulatory authority, the risk of ranking junior to other creditors in the event of a liquidation or other bankruptcy-related event as a result of holding subordinated debt, the risk of the Fund's investment becoming further subordinated as a result of conversion from debt to equity, the risk that the principal amount due can be written down to a lesser amount, and the general risks applicable to fixed income investments, including interest rate risk, credit risk, market risk and liquidity risk, any of which could result in losses to the Fund.

Convertible Securities Risk is the risk that the market values of convertible securities may decline as interest rates increase and, conversely, may increase as interest rates decline. A convertible security's market value, however, tends to reflect the market price of the common stock of the issuing company when that stock price approaches or is greater than the convertible security's "conversion price." The conversion price is defined as the predetermined price at which the convertible security could be exchanged for the associated stock. As the market price of the underlying common stock declines, the price of the convertible security tends to be influenced more by the yield of the convertible security. Thus, it may not decline in price to the same extent as the underlying common stock. In the event of a liquidation of the issuing company, holders of convertible securities may be paid before the company's common stockholders but after holders of any senior debt obligations of the company. Consequently, the issuer's convertible securities generally entail less risk than its common stock but more risk than its debt obligations. Convertible securities are often rated below investment grade or not rated.

Counterparty Risk is the risk that the Fund will be subject to credit risk with respect to the counterparties to the derivative contracts and other instruments entered into by the Fund or held by special purpose or structured vehicles in which the Fund invests. If a counterparty becomes bankrupt or otherwise fails to perform its obligations under a derivative contract due to financial difficulties, the Fund may experience significant delays in obtaining any recovery (including recovery of any collateral it has provided to the counterparty) in a dissolution, assignment for the benefit of creditors, liquidation, winding-up, bankruptcy, or other analogous proceeding.

"Covenant-lite" Obligations Risk is the risk that covenant-lite obligations contain fewer maintenance covenants than other obligations, or no maintenance covenants, and may not include terms that allow the lender to monitor the performance of the borrower and declare a default if certain criteria are breached. Covenant-lite loans may carry more risk than traditional loans as they allow individuals and corporations to engage in activities that would otherwise be difficult or impossible under a covenant-heavy loan agreement. In the event of default, covenant-lite loans may exhibit diminished recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default.

Credit Default Swaps Risk is the risk of investing in credit default swaps, including illiquidity risk, counterparty risk, leverage risk and credit risk. A buyer generally also will lose its investment and recover nothing should no credit event occur and the swap is held to its termination date. When the Fund acts as a seller of a credit default swap, it is exposed to many of the same risks of leverage described herein since if an event of default occurs, the seller must pay the buyer the full notional value of the reference obligation. In addition, selling credit default swaps may not be profitable for the Fund if no secondary market exists or the Fund is otherwise unable to close out these transactions at advantageous times.

Credit Risk is the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivatives contract, repurchase agreement or a loan of portfolio securities, is unable or unwilling, or is perceived (whether by market participants, rating agencies, pricing services or otherwise) as unable or unwilling, to meet its financial obligations. Measures such as average credit quality may not accurately reflect the true credit risk of the Fund. This is especially the case if the Fund consists of securities with widely varying credit ratings.

Currency Risk is the risk that investments denominated in foreign (non-U.S.) currencies or that trade in and receive revenues in, foreign (non-U.S.) currencies, or derivatives or other instruments that provide exposure to foreign (non-U.S.) currencies may decline in value, due to the risk that those currencies will decline in value relative to the U.S. dollar, or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

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|:---|:---|
| **100** | **PIMCO CLOSED-END FUNDS** |

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December 31, 2022 (Unaudited)

Cyber Security Risk is the risk that, as the use of technology has become more prevalent in the course of business, the Funds have become potentially more susceptible to operational and information security risks resulting from breaches in cyber security. A breach in cyber security refers to both intentional and unintentional cyber events that may, among other things, cause a Fund to lose proprietary information, suffer data corruption and/or destruction or lose operational capacity, result in the unauthorized release or other misuse of confidential information, or otherwise disrupt normal business operations. Cyber security failures or breaches may result in financial losses to a Fund and its shareholders. These failures or breaches may also result in disruptions to business operations, potentially resulting in financial losses; interference with a Fund's ability to calculate its net asset value, process shareholder transactions or otherwise transact business with shareholders; impediments to trading; violations of applicable privacy and other laws; regulatory fines; penalties; third party claims in litigation; reputational damage; reimbursement or other compensation costs; additional compliance and cyber security risk management costs and other adverse consequences. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future. There is also a risk that cyber security breaches may not be detected. The Fund and its shareholders may suffer losses as a result of a cyber security breach related to the Fund, its service providers, trading counterparties or the issuers in which the Fund invests.

Debt Securities Risk is the risk that prices of bonds and other fixed income securities will generally increase as interest rates fall and decrease as interest rates rise. Income from the Fund's portfolio may decline if the Fund invests the proceeds from matured, traded or called fixed income securities at market interest rates that are below the portfolio's current earnings rate. The value of most bond funds and fixed income securities are impacted by changes in interest rates. Bonds and bond funds with longer durations tend to be more sensitive and more volatile than securities with shorter durations; bond prices generally fall as interest rates rise.

Derivatives Risk is the risk of investing in derivative instruments (such as futures, swaps and structured securities), including leverage, liquidity, interest rate, market, credit, management, counterparty, operational and legal risks and valuation complexity. Changes in the value of a derivative may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. The Fund's use of derivatives may result in losses to the Fund, a reduction in the Fund's returns and/or increased volatility. Over-the-counter ("OTC") derivatives are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative

transactions might not be available for OTC derivatives. The primary credit risk on derivatives that are exchange-traded or traded through a central clearing counterparty resides with the Fund's clearing broker, or the clearinghouse itself.

Distressed and Defaulted Securities Risk is the risk of investing in the securities of financially distressed issuers, including the risk of default. These securities may fluctuate more in price and are typically less liquid.

The Fund also will be subject to significant uncertainty as to when, and in what manner, and for what value obligations evidenced by securities of financially distressed issuers will eventually be satisfied.

Distribution Rate Risk is the risk that, to the extent the Fund seeks to maintain a level distribution rate, the Fund's distribution rate may be affected by numerous factors, including but not limited to changes in realized and projected market returns, fluctuations in market interest rates, Fund performance, and other factors. For instance, during periods of low or declining interest rates, the Fund's distributable income and dividend levels may decline for many reasons. There can be no assurance that a change in market conditions or other factors will not result in a change in the Fund's distribution rate or that the rate will be sustainable in the future.

Emerging Markets Risk is the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk.

Equity Securities and Related Market Risk is the risk that the value of equity securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities.

Focused Investment Risk is the risk that, to the extent that the Fund focuses its investments in a particular industry, country or geographic region, the NAV of its common shares will be more susceptible to events or factors affecting companies in that industry, country or geographic region.

Foreign (Non-U.S.) Investment Risk is the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, political changes, diplomatic developments or the imposition of sanctions and other similar measures. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers.

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|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **101** |

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Notes to Financial Statements (Cont.)

High Yield Securities Risk is the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit, call and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments and may be more volatile than higher-rated securities of similar maturity.

Inflation/Deflation Risk is the risk that the value of assets or income from the Fund's investments will be worth less in the future as inflation decreases the value of payments at future dates. As inflation increases, the real value of the Fund's portfolio could decline. Deflation Risk is the risk that prices throughout the economy decline over time. Deflation may have an adverse effect on the creditworthiness of issuers and may make issuer default more likely, which may result in a decline in the value of the Fund's portfolio and common shares.

Inflation-Indexed Security Risk is the risk that inflation-indexed debt securities are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the value of an inflation-indexed security, including TIPS, tends to decrease when real interest rates increase and can increase when real interest rates decrease. Interest payments on inflation-indexed securities are unpredictable and will fluctuate as the principal and interest are adjusted for inflation. There can be no assurance that the inflation index used will accurately measure the real rate of inflation in the prices of goods and services. Any increase in the principal amount of an inflation- indexed debt security will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity.

Interest Rate Risk is the risk that fixed income securities and other instruments in the Fund's portfolio will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a short average portfolio duration.

Issuer Risk is the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods

or services.

Leverage Risk is the risk that certain transactions of the Fund, such as reverse repurchase agreements, dollar rolls and/or borrowings (as well as from any future issuance of preferred shares), delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss.

Liquidity Risk is the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid

investments at an advantageous time or price or possibly require the Fund to dispose of other investments at unfavorable times or prices in order to satisfy its obligations, which could prevent the Fund from taking advantage of other investment opportunities. Additionally, the market for certain investments may become illiquid under adverse market or economic conditions independent of any specific adverse changes in the conditions of a particular issuer.

Loans and Other Indebtedness; Loan Participations and Assignments Risk is the risk that scheduled interest or principal payments will not be made in a timely manner or at all, either of which may adversely affect the values of a loan. Additionally, there is a risk that the collateral underlying a loan may be unavailable or insufficient to satisfy a borrower's obligation, and the Fund could become part owner of any collateral if a loan is foreclosed, subjecting the Fund to costs associated with owning and disposing of the collateral.

In the event of the insolvency of the lender selling a participation, there is a risk that the Fund may be treated as a general creditor of the lender and may not benefit from any set-off between the lender and the borrower.

There is the risk that the Fund may have difficulty disposing of loans and loan participations due to the lack of a liquid secondary market for loans and loan participations.

To the extent the Fund acquires loans, including bank loans, the Fund may be subject to greater levels of credit risk, call risk, settlement risk and liquidity risk than funds that do not acquire such instruments.

Management Risk is the risk that the investment techniques and risk analyses applied by PIMCO will not produce the desired results and that actual or potential conflicts of interest, legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO and the individual portfolio manager in connection with managing the Fund and may cause PIMCO to restrict or prohibit participation in certain investments. There is no guarantee that the investment objective of the Fund will be achieved.

Market Discount Risk is the risk that the price of the Fund's common shares of beneficial interest will fluctuate with market conditions and other factors. Shares of closed-end management investment companies frequently trade at a discount from their net asset value.

Market Disruptions Risk is the risk of investment and operational risks associated with financial, economic and other global market developments and disruptions, including those arising from war, terrorism, market manipulation, government interventions, defaults and shutdowns, political changes or diplomatic developments, public health emergencies (such as the spread of infectious diseases, pandemics and

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|:---|:---|
| **102** | **PIMCO CLOSED-END FUNDS** |

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December 31, 2022 (Unaudited)

epidemics) and natural/environmental disasters, which can all negatively impact the securities markets and cause a Fund to lose value. These events can also impair the technology and other operational systems upon which a Fund's service providers, including PIMCO as a Fund's investment adviser, rely, and could otherwise disrupt a Fund's service providers' ability to fulfill their obligations to a Fund.

Market Risk is the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries.

Mortgage-Related and Other Asset-Backed Securities Risk is the risk of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk.

Mortgage-Related Derivative Instruments Risk is the risk associated with mortgage-related and other asset-backed instruments, privately- issued mortgage-related securities, the mortgage market, the real estate industry, derivatives and credit default swaps. See "Mortgage- Related and Other Asset-Backed Instruments Risk," "Privately-Issued Mortgage-Related Securities Risk," "Derivatives Risk," and "Credit Default Swaps Risk."

Operational Risk is the risk arising from factors such as processing errors, human errors, inadequate or failed internal or external processes, failures in systems and technology, changes in personnel and errors caused by third-party service providers. The occurrence of any of these failures, errors or breaches could result in a loss of information, regulatory scrutiny, reputational damage or other events, any of which could have a material adverse effect on a Fund. While a Fund seeks to minimize such events through controls and oversight, there may still be failures that could cause losses to the Fund.

Other Investment Companies Risk is the risk that Common Shareholders may be subject to duplicative expenses to the extent the Fund invests in other investment companies. In addition, these other investment companies may utilize leverage, in which case an investment would subject the Fund to additional risks associated

with leverage.

Platform Risk is the risk resulting from the fact that the Alt Lending ABS in which the Fund invests are typically not listed on any securities exchange and not registered under the Securities Act. In addition, the Fund anticipates that these instruments may only be sold to a limited number of investors and may have a limited or non-existent secondary market. Accordingly, the Fund currently expects that certain of the investments in Alt Lending ABS will face heightened levels of liquidity risk. Although currently, there is generally no active reliable, secondary market for certain Alt Lending ABS, a secondary market for these Alt Lending ABS may develop. If the Fund purchases Alt Lending ABS on

an alternative lending platform, the Fund will have the right to receive principal and interest payments due on loans underlying the Alt Lending ABS only if the platform servicing the loans receives the borrower's payments on such loans and passes such payments through to the Fund. If a borrower is unable or fails to make payments on a loan for any reason, the Fund may be greatly limited in its ability to recover any outstanding principal or interest due, as (among other reasons) the Fund may not have direct recourse against the borrower or may otherwise be limited in its ability to directly enforce its rights under the loan, whether through the borrower or the platform through which such loan was originated, the loan may be unsecured or under- collateralized and/or it may be impracticable to commence a legal proceeding against the defaulting borrower.

Portfolio Turnover Risk is the risk that a high portfolio turnover will result in greater expenses to the Fund, including brokerage commissions or dealer mark-ups and other transaction costs on the sale of securities and reinvestments in other securities. Such sales may result in realization of taxable capital gains (including short-term capital gains, which are generally taxed to shareholders at ordinary income tax rates when distributed net of short-term capital losses and net long-term capital losses) and may adversely affect the Fund's after-tax returns.

Potential Conflicts of Interest Risk — Allocation of Investment Opportunities is the risk that PIMCO's interests or the interests of its clients may conflict with those of the Funds and the results of the Fund's investment activities may differ from those of the Fund's affiliates, or another account managed by the Fund's affiliates, and it is possible that the Fund could sustain losses during periods in which one or more of the Fund's affiliates and/or other accounts managed by PIMCO or its affiliates, including proprietary accounts, achieve profits on their trading.

Preferred Securities Risk is the risk that certain preferred securities contain provisions that allow an issuer under certain conditions to skip or defer distributions which may require the Fund to include the amount of the deferred distribution in its taxable income for tax purposes although it does not currently receive such amount in cash. Additionally, preferred securities are subordinated to bonds and other debt securities in an issuer's capital structure in terms of priority for corporate income and liquidation payments, and therefore will be subject to greater credit risk than those debt securities. Preferred securities may trade less frequently and in a more limited volume and may be subject to more abrupt or erratic price movements than many other securities, such as common stocks, corporate debt securities and U.S. Government securities.

Privacy and Data Security Risk is the risk resulting from the fact that the Gramm-Leach-Bliley Act ("GLBA") and other laws limit the

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|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **103** |

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Notes to Financial Statements (Cont.)

disclosure of certain non-public personal information about a consumer to non-affiliated third parties and require financial institutions to disclose certain privacy policies and practices with respect to information sharing with both affiliates and non-affiliated third parties. Many states and a number of non-U.S. jurisdictions have enacted privacy and data security laws requiring safeguards on the privacy and security of consumers' personally identifiable information. Other laws deal with obligations to safeguard and dispose of private information in a manner designed to avoid its dissemination. Privacy rules adopted by the U.S. Federal Trade Commission and SEC implement GLBA and other requirements and govern the disclosure of consumer financial information by certain financial institutions, ranging from banks to private investment funds. U.S. platforms following certain models generally are required to have privacy policies that conform to these GLBA and other requirements. In addition, such platforms typically have policies and procedures intended to maintain platform participants' personal information securely and dispose of it properly.

Private Placements Risk is the risk that securities received in a private placement may be subject to strict restrictions on resale, and there may be no liquid secondary market or ready purchaser for such securities. Therefore, the Fund may be unable to dispose of such securities when it desires to do so, or at the most favorable time or price. Private placements may also raise valuation risks.

non-governmental issuers.

Real Estate Risk is the risk associated with investing in real estate investments, including investments in equity or debt securities issued by private and public REITs, real estate operating companies ('REOCs"), private or public real estate-related loans and real estate-linked derivative instruments. The Fund will be subject to the risks associated with owning real estate and with the real estate industry generally.

Reinvestment Risk is the risk that income from the Fund's portfolio will decline if and when the Fund invests the proceeds from matured, traded or called debt obligations at market interest rates that are below the portfolio's current earnings rate. The Fund also may choose to sell higher yielding portfolio securities and to purchase lower yielding securities to achieve greater portfolio diversification, because the portfolio managers believe the current holdings are overvalued or for other investment-related reasons.

REIT Risk is the risk associated with investing in REITs, which are pooled investment vehicles that own, and usually operate, income- producing real estate. Some REITs also finance real estate. If a REIT meets certain requirements, including distributing to shareholders

substantially all of its taxable income (other than net capital gains), then it is not typically taxed on the income distributed to shareholders. Therefore, REITs may pay higher dividends than other issuers.

Regulatory Changes Risk is the risk that is associated with the fact that financial entities, such as investment companies and investment advisers, are generally subject to extensive government regulation and intervention. Government regulation and/or intervention may change the way the Fund is regulated, affect the expenses incurred directly by the Fund and the value of its investments, and limit and /or preclude the Fund's ability to achieve its investment objectives. Government regulation may change frequently and may have significant adverse consequences. The Fund and the Investment Manager have historically been eligible for exemptions from certain regulations. However, there is no assurance that the Fund and the Investment Manager will continue to be eligible for such exemptions.

Regulatory Risk — Commodity Pool Operator is the risk associated with the CFTC's adopted regulations that subject registered investment companies and their investment advisers to regulation by the CFTC if the registered investment company invests more than a prescribed level of its liquidation value in futures, options on futures or commodities, swaps, or other financial instruments regulated under the Commodity Exchange Act ("CEA") and the rules thereunder ("commodity interests"), or if the Fund markets itself as providing investment exposure to such instruments. The Investment Manager is registered with the CFTC as a Commodity Pool Operator.

Regulatory Risk — LIBOR is the risk related to the anticipated discontinuation of the London Interbank Offered Rate ("LIBOR"). Certain instruments held by the Fund rely in some fashion upon LIBOR. Although the transition process away from LIBOR has become increasingly well-defined in advance of the anticipated discontinuation date, there remains uncertainty regarding the nature of any replacement rate, and any potential effects of the transition away from LIBOR on the Fund or on certain instruments in which the Fund invests can be difficult to ascertain. The transition process may involve, among other things, increased volatility or illiquidity in markets for instruments that currently rely on LIBOR and may result in a reduction in the value of certain instruments held by the Fund.

Repurchase Agreements Risk is the risk that, if the party agreeing to repurchase a security should default, the Fund will seek to sell the securities which it holds, which could involve procedural costs or delays in addition to a loss on the securities if their value should fall below their repurchase price.

Restricted Securities Risk is the risk that the Fund's investment in securities that have not been registered for public sale, but that are eligible for purchase and sale pursuant to Rule 144A under the Securities Act, may be relatively less liquid than registered securities traded on established securities markets.

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|:---|:---|
| **104** | **PIMCO CLOSED-END FUNDS** |

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December 31, 2022 (Unaudited)

Risk Retention Investment Risk is the risk associated with the Fund's investments in risk retention tranches of commercial mortgage-backed securities ("CMBS") or other eligible securitizations, if any ("risk retention tranches"), which are eligible residual interests typically held by the sponsors of such securitizations pursuant to the final rules implementing the credit risk retention requirements of Section 941 of the Dodd-Frank Act (the "U.S. Risk Retention Rules"). There can be no assurance that the applicable federal agencies charged with the implementation of the final U.S. Risk Retention Rules (the Federal Deposit Insurance Corporation, the Comptroller of the Currency, the Federal Reserve Board, the SEC, the Department of Housing and Urban Development, and the Federal Housing Finance Agency) could not take positions in the future that differ from the interpretation of such rules taken or embodied in such securitizations, or that the final U.S. Risk Retention Rules will not change. Furthermore, if the Fund breaches any undertakings in any Risk Retention Agreement, it will be exposed to claims by the other parties thereto, including for any losses incurred as a result of such breach, which could be significant and exceed the value of the Fund's investments.

Securities Lending Risk is the risk that, when a Fund lends portfolio securities, its investment performance will continue to reflect changes in the value of the securities loaned and lose rights in the collateral or delay in recovery of the collateral if the borrower fails to return the security loaned or becomes insolvent. The Fund may pay lending fees to a party, which may be an affiliate of the Fund, arranging the loan.

Senior Debt Risk is the risk that the Fund may be subject to greater levels of credit risk than funds that do not invest in below investment grade senior debt. The Fund may also be subject to greater levels of liquidity risk than funds that do not invest in senior debt. Restrictions on transfers in loan agreements, a lack of publicly available information and other factors may, in certain instances, make senior debt more difficult to sell at an advantageous time or price than other types of securities or instruments.

Short Exposure Risk is the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale will not fulfill its contractual obligations, causing a loss to the Fund.

Smaller Company Risk is the risk that the value of securities issued by a smaller company may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk.

Sovereign Debt Risk is the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result

of default or other adverse credit event resulting from an issuer's inability or unwillingness to make principal or interest payments in a timely fashion.

Special Purpose Acquisition Companies ("SPACs") Risk is the risk that, because SPACs and similar entities are in essence blank check companies without operating history or ongoing business other than seeking acquisitions, the value of their securities is particularly dependent on the ability of the entity's management to identify and complete a profitable acquisition. A SPAC's structure may result in significant dilution of a stockholder's share value immediately upon the completion of a business combination due to, among other reasons, interests held by the SPAC sponsor, conversion of warrants into additional shares, shares issued in connection with a business combination and/or certain embedded costs. There is no guarantee that the SPACs in which the Fund invests will complete an acquisition or that any acquisitions that are completed will be profitable. Some SPACs may pursue acquisitions only within certain industries or regions, which may increase the volatility of their prices. In addition, these securities, which are typically traded in the over-the-counter market, may be considered illiquid and/or be subject to restrictions on resale.

Structured Investments Risk is the risk that the Fund's investment in structured products, including, structured notes, credit-linked notes and other types of structured products bear the risks of the underlying investments, index or reference obligation and are subject to counterparty risk. The Fund may have the right to receive payments only from the structured product, and generally does not have direct rights against the issuer or the entity that sold the assets to be securitized. Structured products generally entail risks associated with derivative instruments.

Subprime Risk is the risk that loans, and debt instruments collateralized by loans (including Alt Lending ABS), acquired by the Fund may be subprime in quality, or may become subprime in quality. Although there is no specific legal or market definition of "subprime," subprime loans are generally understood to refer to loans made to borrowers that display poor credit histories and other characteristics that correlate with a higher default risk. Accordingly, subprime loans, and debt instruments secured by such loans, have speculative characteristics and are subject to heightened risks, including the risk of nonpayment of interest or repayment of principal, and the risks associated with investments in high yield securities. In addition, these instruments could be subject to increased regulatory scrutiny. The Fund is not restricted by any particular borrower credit criteria when acquiring loans or debt instruments collateralized by loans.

Subsidiary Risk is the risk that, by investing in a Fund's Subsidiary, the Fund would be exposed to the risks associated with the Subsidiaries'

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|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **105** |

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Notes to Financial Statements (Cont.)

investments. The Subsidiaries are not registered under the Act and may not be subject to all the investor protections of the Act. There is no guarantee that the investment objective of a subsidiary will be achieved.

Synthetic Convertible Securities Risk is the risk that the values of synthetic convertible securities will respond differently to market fluctuations than a traditional convertible security because a synthetic convertible is composed of two or more separate securities or instruments, (such as a debt security and a warrant or option to purchase another security), each with its own market value. Synthetic convertible securities are also subject to the risks associated with derivatives. In addition, if the value of the underlying common stock or the level of the index involved in the convertible element falls below the strike price of the warrant or option, the warrant or option may lose all value.

Tax Risk is the risk that if, in any year, the Fund were to fail to qualify for treatment as a regulated investment company under the Tax Code, and were ineligible to or did not otherwise cure such failure, the Fund would be subject to tax on its taxable income at corporate rates and, when such income is distributed, shareholders would be subject to a further tax to the extent of the Fund's current or accumulated earnings and profits.

U.S. Government Securities Risk is the risk that the obligations supported by (i) the full faith and credit of the United States, (ii) the right of the issuer to borrow from the U.S. Treasury, (iii) the discretionary authority of the U.S. Government to purchase the agency's obligations (iv) or only by the credit of the agency, instrumentality or corporation will not be satisfied in full, or that such obligations will decrease in value or default.

Valuation Risk is the risk that fair value pricing used when market quotations are not readily available may not result in adjustments to the prices of securities or other assets, or that fair value pricing may not reflect actual market value. It is possible that the fair value determined in good faith for a security or other asset will be materially different from quoted or published prices, from the prices used by others for the same security or other asset and/or from the value that actually could be or is realized upon the sale of that security or other asset.

Zero-Coupon Bond, Step-Ups and Payment-in-Kind Securities Risk is the risk presented by the market prices of zero-coupon, step ups and payment-in-kind securities generally being more volatile than the prices of securities that pay interest periodically and in cash and being likely to respond to changes in interest rates to a greater degree than other types of debt securities with similar maturities and credit quality. In addition, as these securities may not pay cash interest, the Fund's investment exposure to these securities and their risks, including credit risk, will increase during the time these securities are held in the Fund's portfolio.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

(b) Other Risks

In general, a Fund may be subject to additional risks, including, but not limited to, risks related to government regulation and intervention in financial markets, operational risks, risks associated with financial, economic and global market disruptions, and cyber security risks. Please see the Important Information section of this report for additional discussion of certain regulatory and market developments that may impact a Fund's performance.

8. MASTER NETTING ARRANGEMENTS

A Fund may be subject to various netting arrangements ("Master Agreements") with select counterparties. Master Agreements govern the terms of certain transactions, and are intended to reduce the counterparty risk associated with relevant transactions by specifying credit protection mechanisms and providing standardization that is intended to improve legal certainty. Each type of Master Agreement governs certain types of transactions. Different types of transactions may be traded out of different legal entities or affiliates of a particular organization, resulting in the need for multiple agreements with a single counterparty. As the Master Agreements are specific to unique operations of different asset types, they allow a Fund to close out and net its total exposure to a counterparty in the event of a default with respect to all the transactions governed under a single Master Agreement with a counterparty. For financial reporting purposes the Statements of Assets and Liabilities generally present derivative assets and liabilities on a gross basis, which reflects the full risks and exposures prior to netting.

Master Agreements can also help limit counterparty risk by specifying collateral posting arrangements at pre-arranged exposure levels. Under most Master Agreements, collateral is routinely transferred if the total net exposure to certain transactions (net of existing collateral already in place) governed under the relevant Master Agreement with a counterparty in a given account exceeds a specified threshold, which typically ranges from zero to $250,000 depending on the counterparty and the type of Master Agreement. United States Treasury Bills and U.S. dollar cash are generally the preferred forms of collateral, although other securities may be used depending on the terms outlined in the applicable Master Agreement. Securities and cash pledged as collateral are reflected as assets on the Statements of Assets and Liabilities as either a component of Investments at value (securities) or Deposits with counterparty. Cash collateral received is not typically held in a segregated account and as such is reflected as a liability on the Statements of Assets and Liabilities as Deposits from counterparty. The market value of any securities received as collateral is not reflected as a component of NAV. A Fund's overall exposure to counterparty risk can change substantially within a short period, as it is affected by each transaction subject to the relevant Master Agreement.

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| **106** | **PIMCO CLOSED-END FUNDS** |

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| December 31, 2022 | (Unaudited) |

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Master Repurchase Agreements and Global Master Repurchase Agreements (individually and collectively "Master Repo Agreements") govern repurchase, reverse repurchase, and certain sale-buyback transactions between a Fund and select counterparties. Master Repo Agreements maintain provisions for, among other things, initiation, income payments, events of default, and maintenance of collateral. The market value of transactions under the Master Repo Agreement, collateral pledged or received, and the net exposure by counterparty as of period end are disclosed in the Notes to Schedules of Investments.

Master Securities Forward Transaction Agreements ("Master Forward Agreements") govern certain forward settling transactions, such as TBA securities, delayed-delivery or certain sale-buyback transactions by and between a Fund and select counterparties. The Master Forward Agreements maintain provisions for, among other things, transaction initiation and confirmation, payment and transfer, events of default, termination, and maintenance of collateral. The market value of forward settling transactions, collateral pledged or received, and the net exposure by counterparty as of period end is disclosed in the Notes to Schedules of Investments.

Customer Account Agreements and related addenda govern cleared derivatives transactions such as futures, options on futures, and cleared OTC derivatives. Such transactions require posting of initial margin as determined by each relevant clearing agency which is segregated in an account at a futures commission merchant ("FCM") registered with the CFTC. In the United States, counterparty risk may be reduced as creditors of an FCM cannot have a claim to Fund assets in the segregated account. Portability of exposure reduces risk to the Funds. Variation margin, which reflects changes in market value, is generally exchanged daily, but may not be netted between futures and cleared OTC derivatives unless the parties have agreed to a separate arrangement in respect of portfolio margining. The market value or accumulated unrealized appreciation (depreciation), initial margin posted, and any unsettled variation margin as of period end are disclosed in the Notes to Schedules of Investments.

Prime Broker Arrangements may be entered into to facilitate execution and/or clearing of listed equity option transactions or short sales of equity securities between a Fund and selected counterparties. The arrangements provide guidelines surrounding the rights, obligations, and other events, including, but not limited to, margin, execution, and settlement. These agreements maintain provisions for, among other things, payments, maintenance of collateral, events of default, and termination. Margin and other assets delivered as collateral are typically in the possession of the prime broker and would offset any obligations due to the prime broker. The market values of listed options and securities sold short and related collateral are disclosed in the Notes to Schedules of Investments.

International Swaps and Derivatives Association, Inc. Master Agreements and Credit Support Annexes ("ISDA Master Agreements") govern bilateral OTC derivative transactions entered into by a Fund with select counterparties. ISDA Master Agreements maintain provisions for general obligations, representations, agreements, collateral posting and events of default or termination. Events of termination include conditions that may entitle counterparties to elect to terminate early and cause settlement of all outstanding transactions under the applicable ISDA Master Agreement. Any election to terminate early could be material to the financial statements. The ISDA Master Agreement may contain additional provisions that add counterparty protection beyond coverage of existing daily exposure if the counterparty has a decline in credit quality below a predefined level or as required by regulation. Similarly, if required by regulation, the Funds may be required to post additional collateral beyond coverage of daily exposure. These amounts, if any, may (or if required by law, will) be segregated with a third-party custodian. To the extent the Funds are required by regulation to post additional collateral beyond coverage of daily exposure, they could potentially incur costs, including in procuring eligible assets to meet collateral requirements, associated with such posting. The market value of OTC financial derivative instruments, collateral received or pledged, and net exposure by counterparty as of period end are disclosed in the Notes to Schedules of Investments.

9. FEES AND EXPENSES

(a) Management Fee Pursuant to the Investment Management Agreement with PIMCO (the "Agreement"), and subject to the supervision of the Board, PIMCO is responsible for providing to each Fund investment guidance and policy direction in connection with the management of the Fund, including oral and written research, analysis, advice, and statistical and economic data and information. In addition, pursuant to the Agreement and subject to the general supervision of the Board, PIMCO, at its expense, provides or causes to be furnished most other supervisory and administrative services the Funds require, including but not limited to, expenses of most third-party service providers (e.g., audit, custodial, legal, transfer agency, printing) and other expenses, such as those associated with insurance, proxy solicitations and mailings for shareholder meetings, NYSE listing and related fees, tax services, valuation services and other services the Funds require for their daily operations.

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| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **107** |

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| Notes to Financial Statements | (Cont.) |

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Pursuant to the Agreement, PIMCO receives an annual fee, payable monthly, at the annual rates shown in the table below:

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| Fund Name | **Annual**<br> **Rate** |
|  PIMCO Corporate & Income Opportunity Fund | 0.65%<sup>(1)</sup> |
|  PIMCO Corporate & Income Strategy Fund | 0.81%<sup>(1)</sup> |
|  PIMCO High Income Fund | 0.76%<sup>(1)</sup> |
|  PIMCO Income Strategy Fund | 0.86%<sup>(2)</sup> |
|  PIMCO Income Strategy Fund II | 0.83%<sup>(2)</sup> |

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<sup>(1)</sup> Management fees calculated based on the Fund's average daily net asset value (including daily net assets attributable to any preferred shares of the Fund that may be outstanding). 

<sup>(2)</sup> Management fees calculated based on the Fund's average weekly "total managed assets." Total managed assets include total assets of each Fund (including any assets attributable to any preferred shares or other forms of leverage that may be outstanding) minus accrued liabilities (other than liabilities representing leverage). 

(b) Fund Expenses Each Fund bears other expenses, which may vary and affect the total level of expenses paid by shareholders, such as (i) salaries and other compensation or expenses, including travel expenses of any of the Fund's executive officers and employees, if any, who are not officers, directors, shareholders, members, partners or employees of PIMCO or its subsidiaries or affiliates; (ii) taxes and governmental fees, if any, levied against the Fund; (iii) brokerage fees and commissions and other portfolio transaction expenses incurred by or for the Fund (including, without limitation, fees and expenses of outside legal counsel or third-party consultants retained in connection with reviewing, negotiating and structuring specialized loans and other investments made by the Fund, subject to specific or general authorization by the Board (for example, so-called "broken-deal costs" (e.g., fees, costs, expenses and liabilities, including, for example, due diligence-related fees, costs, expenses and liabilities, with respect to unconsummated investments))); (iv) expenses of the Fund's securities lending (if any), including any securities lending agent fees, as governed by a separate securities lending agreement; (v) costs, including interest expenses, of borrowing money or engaging in other types of leverage financing, including, without limitation, through the use by the Fund of reverse repurchase agreements, tender option bonds, bank borrowings and credit facilities; (vi) costs, including dividend and/or interest expenses and other costs (including, without limitation, offering and related legal costs, fees to brokers, fees to auction agents, fees to transfer agents, fees to ratings agencies and fees to auditors associated with satisfying ratings agency requirements for preferred shares or other securities issued by the Fund and other related requirements in the Fund's organizational documents) associated with the Fund's issuance, offering, redemption and

maintenance of preferred shares, commercial paper or other senior securities for the purpose of incurring leverage; (vii) fees and expenses of any underlying funds or other pooled vehicles in which the Fund invests; (viii) dividend and interest expenses on short positions taken by the Fund; (ix) fees and expenses, including travel expenses, and fees and expenses of legal counsel retained for their benefit, of Trustees who are not officers, employees, partners, shareholders or members of PIMCO or its subsidiaries or affiliates; (x) extraordinary expenses, including extraordinary legal expenses, that may arise, including expenses incurred in connection with litigation, proceedings, other claims, and the legal obligations of the Fund to indemnify its Trustees, officers, employees, shareholders, distributors, and agents with respect thereto; (xi) organizational and offering expenses of the Fund, including with respect to share offerings, such as rights offerings and shelf offerings, following the Fund's initial offering, and expenses associated with tender offers and other share repurchases and redemptions; and (xii) expenses of the Fund which are capitalized in accordance with U.S. GAAP. Without limiting the generality or scope of the foregoing, it is understood that the Funds may bear such expenses either directly or indirectly through contracts or arrangements with PIMCO or an affiliated or unaffiliated third party.

Each of the Trustees of the Funds who is not an interested person under Section 2(a)(19) of the Act, (the "Independent Trustees"), also serves as a trustee of a number of other closed-end funds for which PIMCO serves as investment manager (together with the Funds, the "PIMCO Closed-End Funds"), as well as PIMCO California Flexible Municipal Income Fund, PIMCO Flexible Emerging Markets Income Fund, PIMCO Flexible Credit Income Fund and PIMCO Flexible Municipal Income Fund, each a closed end management investment company managed by PIMCO that is operated as an "interval fund", and PIMCO Managed Accounts Trust, an open-end management investment company with multiple series for which PIMCO serves as investment adviser and administrator.

The Funds pay no compensation directly to any Trustee or any other officer who is affiliated with the Manager, all of whom receive remuneration for their services to the Funds from the Manager or its affiliates.

10. RELATED PARTY TRANSACTIONS

The Manager is a related party. Fees payable to this party are disclosed in Note 9, Fees and Expenses, and the accrued related party fee amounts are disclosed on the Statements of Assets and Liabilities.

Certain Funds are permitted to purchase or sell securities from or to certain related affiliated funds under specified conditions outlined in procedures adopted by the Board. The procedures have been designed to ensure that any purchase or sale of securities by the Funds from or to another fund or portfolio that are, or could be, considered an affiliate, or an affiliate of an affiliate, by virtue of having a common investment adviser (or affiliated investment advisers), common Trustees and/or common officers complies with applicable SEC rules and interpretations under the Act. Further, as

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| | |
|:---|:---|
| **108** | **PIMCO CLOSED-END FUNDS** |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

---

defined under the procedures, each transaction is effected at the current market price. Purchases and sales of securities pursuant to applicable SEC rules and interpretations under the Act for the period ended December 31, 2022, were as follows (amounts in thousands<sup>†</sup>):

---

| | | | |
|:---|:---|:---|:---|
| Fund Name | Purchases | Sales | Realized<br>Gain/(Loss) |
|  PIMCO Corporate & Income Opportunity Fund | $&nbsp;&nbsp;&nbsp;&nbsp;19171 | $&nbsp;&nbsp;&nbsp;&nbsp;30562 | $&nbsp;&nbsp;&nbsp;&nbsp;(677) |
|  PIMCO Corporate & Income Strategy Fund | $2847 | $2421 | $(32) |
|  PIMCO High Income Fund | $5702 | $2455 | $(147) |
|  PIMCO Income Strategy Fund | $1963 | $2021 | $4 |
|  PIMCO Income Strategy Fund II | $9512 | $9195 | $(83) |

---

---

| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

---

11. GUARANTEES AND INDEMNIFICATIONS

Under each Fund's organizational documents, each Trustee and officer is indemnified, to the extent permitted by the Act, against certain liabilities that may arise out of performance of their duties to the Funds. Additionally, in the normal course of business, the Funds enter into contracts that contain a variety of indemnification clauses. The Funds' maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Funds that have not yet occurred. However, the Funds have not had prior claims or losses pursuant to these contracts.

12. PURCHASES AND SALES OF SECURITIES

The length of time a Fund has held a particular security is not generally a consideration in investment decisions. A change in the securities held by a

Fund is known as "portfolio turnover." Each Fund may engage in frequent and active trading of portfolio securities to achieve its investment objective(s), particularly during periods of volatile market movements. High portfolio turnover may involve correspondingly greater transaction costs, including brokerage commissions or dealer mark-ups and other transaction costs on the sale of securities and reinvestments in other securities, which are borne by the Fund. Such sales may also result in realization of taxable capital gains, including short-term capital gains (which are generally taxed at ordinary income tax rates when distributed to shareholders). The transaction costs associated with portfolio turnover may adversely affect a Fund's performance. The portfolio turnover rates are reported in the Financial Highlights.

Purchases and sales of securities (excluding short-term investments) for the period ended December 31, 2022, were as follows (amounts in thousands<sup>†</sup>):

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| | | | | |
|:---|:---|:---|:---|:---|
| | U.S. Government/Agency | U.S. Government/Agency | All Other | All Other |
| Fund Name | Purchases | Sales | Purchases | Sales |
|  PIMCO Corporate & Income Opportunity Fund | $&nbsp;&nbsp;&nbsp;&nbsp;3870 | $0 | $&nbsp;&nbsp;&nbsp;&nbsp;391922 | $&nbsp;&nbsp;&nbsp;&nbsp;526068 |
|  PIMCO Corporate & Income Strategy Fund | 0 | 0 | 115091 | 154393 |
|  PIMCO High Income Fund | 909 | &nbsp;&nbsp;&nbsp;&nbsp;909 | 134817 | 163663 |
|  PIMCO Income Strategy Fund | 0 | 0 | 73563 | 79189 |
|  PIMCO Income Strategy Fund II | 0 | 0 | 132143 | 150357 |

---

---

| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

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13. COMMON SHARES OFFERING

Each of PIMCO Corporate & Income Opportunity Fund ("PTY"), PIMCO Corporate & Income Strategy Fund ("PCN"), PIMCO High Income Fund ("PHK"), PIMCO Income Strategy Fund ("PFL") and PIMCO Income Strategy Fund II ("PFN") has authorized an unlimited number of Common Shares at a par value of $0.00001 per share (each of the foregoing Fund's shares as the context requires, "Common Shares").

As of the end of the reporting period, each Fund had an effective registration statement on file with the SEC authorizing the Fund to issue shares through the "shelf" registration process pursuant to Rule 415 under the Securities Act (each, a "Shelf Registration Statement"). Pursuant to such Shelf Registration Statements, each Fund may offer and sell Common Shares having an aggregate offering value of up to amounts shown in the table below. Each Fund may have had one or

more prior Shelf Registration Statements in effect during this and/or previous fiscal periods authorizing the sale of additional Common Shares.

Each Fund has entered into a sales agreement (a "Sales Agreement") with JonesTrading Institutional Services LLC ("JonesTrading"), pursuant to which each Fund may offer and sell its Common Shares offered by an applicable prospectus supplement through JonesTrading as its agent in negotiated transactions or transactions that are deemed to be "at the market" as defined in Rule 415 under the Securities Act, including sales made directly on the NYSE or sales made to or through a market maker other than on an exchange, at prices related to the prevailing market prices or at negotiated prices. Each Fund will pay JonesTrading compensation of up to 1.00% of the gross proceeds with respect to sales of the Common Shares actually effected by JonesTrading under the Sales Agreement.

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **109** |

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| | |
|:---|:---|
| Notes to Financial Statements | (Cont.) |

---

The aggregate dollar amount of Common Shares registered under each Fund's Shelf Registration Statement (or its most recent prospectus supplement, if less than such registered amount) as of the end of the periods described below, as well as number of Common Shares sold and total amount of offering proceeds (net of offering costs, if any) received by each Fund under one or more Shelf Registration Statements during the Fund's most recent and prior fiscal periods, were as follows:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | PTY | PTY | PCN | PCN | PHK | PHK |
|  | **Six Months<br>Ended**<br> **12/31/2022** | Period from<br>August 1, 2021 to<br>June 30, 2022 | **Six Months<br>Ended**<br> **12/31/2022** | Period from<br>August 1, 2021 to<br>June 30, 2022 | **Six Months<br>Ended**<br> **12/31/2022** | Period from<br>August 1, 2021 to<br>June 30, 2022 |
|  Common Shares registered (aggregate $) | $&nbsp;&nbsp;&nbsp;&nbsp;600000000 | $&nbsp;&nbsp;&nbsp;&nbsp;600000000 | $&nbsp;&nbsp;&nbsp;&nbsp;200000000 | $&nbsp;&nbsp;&nbsp;&nbsp;200000000 | $&nbsp;&nbsp;&nbsp;&nbsp;200000000 | $&nbsp;&nbsp;&nbsp;&nbsp;200000000 |
|  Common Shares sold | 7677084 | 6128527 | 2038098 | 1932049 | 2981513 | 345046 |
|  Offering proceeds (net of offering costs) | $98900098 | $99829867 | $26348048 | $31648774 | $14912162 | $1989722 |

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---

| | | | | |
|:---|:---|:---|:---|:---|
|  | PFL | PFL | PFN | PFN |
|  | **Six Months<br>Ended**<br> **12/31/2022** | Period from<br>August 1, 2021 to<br>June 30, 2022 | **Six Months<br>Ended**<br> **12/31/2022** | Period from<br>August 1, 2021 to<br>June 30, 2022 |
|  Common Shares registered (aggregate $) | $&nbsp;&nbsp;&nbsp;&nbsp;200000000 | $&nbsp;&nbsp;&nbsp;&nbsp;200000000 | $&nbsp;&nbsp;&nbsp;&nbsp;250000000 | $&nbsp;&nbsp;&nbsp;&nbsp;250000000 |
|  Common Shares sold | 1133535 | 925313 | 1663729 | 1258596 |
|  Offering proceeds (net of offering costs) | $10184225 | $9700744 | $12887684 | $12151886 |

---

A Fund may not sell any Common Shares at a price below the NAV of such Common Shares, exclusive of any distributing commission or discount. Sales of the Common Shares, if any, may be made in negotiated transactions or transactions that are deemed to be "at the market," including sales made directly on the NYSE or sales made to or through a market maker other than on an exchange, at prices related to the prevailing market prices or at negotiated prices.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

14. AUCTION-RATE PREFERRED SHARES

Each series of Auction-Rate Preferred Shares ("ARPS") outstanding of each Fund has a liquidation preference of $25,000 per share plus any accumulated, unpaid dividends. Dividends are accumulated daily at an annual rate that is typically reset every seven days through auction procedures (or through default procedures in the event of failed auctions). Distributions of net realized capital gains, if any, are paid at least annually.

For the period ended December 31, 2022, the annualized dividend rates on the ARPS ranged from:

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| | | | | |
|:---|:---|:---|:---|:---|
| Fund Name | **Shares**<br> **Issued**<br> **Outstanding** | High | Low | **As of**<br> **December 31, 2022** |
|  **PIMCO Corporate & Income Opportunity Fund** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series M | 1748 | 8.628% | 3.102% | 8.608% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series T | 1596 | 8.668% | 3.082% | 8.668% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series W | 1634 | 8.668% | 3.122% | 8.668% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series TH | 1786 | 8.668% | 3.142% | 8.668% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series F | 1742 | 8.608% | 3.102% | 8.608% |
|  **PIMCO Corporate & Income Strategy Fund** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series M | 242 | 6.902% | 2.482% | 6.886% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series T | 180 | 6.934% | 2.466% | 6.934% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series W | 214 | 6.934% | 2.498% | 6.934% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series TH | 138 | 6.934% | 2.514% | 6.934% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series F | 167 | 6.886% | 2.482% | 6.886% |
|  **PIMCO High Income Fund** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series M | 455 | 6.902% | 2.482% | 6.886% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series T | 526 | 6.934% | 2.466% | 6.934% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series W | 369 | 6.934% | 2.498% | 6.934% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series TH | 476 | 6.934% | 2.514% | 6.934% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series F | 496 | 6.886% | 2.482% | 6.886% |
|  **PIMCO Income Strategy Fund** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series T | 698 | 8.716% | 3.038% | 8.676% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series W | 636 | 8.676% | 3.058% | 8.676% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series TH | 474 | 8.676% | 3.068% | 8.676% |

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| | |
|:---|:---|
| **110** | **PIMCO CLOSED-END FUNDS** |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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| | | | | |
|:---|:---|:---|:---|:---|
| **Fund Name** | **Shares**<br> **Issued**<br> **Outstanding** | **High** | **Low** | **As of**<br> **December 31, 2022** |
|  **PIMCO Income Strategy Fund II** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series M | 671 | 8.716% | 3.048% | 8.676% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series T | 855 | 8.716% | 3.038% | 8.676% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series W | 627 | 8.676% | 3.058% | 8.676% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series TH | 706 | 8.676% | 3.068% | 8.676% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Series F | 638 | 8.676% | 3.048% | 8.676% |

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Each Fund is subject to certain limitations and restrictions while ARPS are outstanding. Failure to comply with these limitations and restrictions could preclude a Fund from declaring or paying any dividends or distributions to common shareholders or repurchasing common shares and/or could trigger the mandatory redemption of ARPS at their liquidation preference plus any accumulated, unpaid dividends.

Ratings agencies may change their methodologies for evaluating and providing ratings for shares of closed-end funds at any time and in their

sole discretion, which may affect the rating (if any) of a Fund's shares. In addition, ratings downgrades may result in an increase to the Fund's Maximum Rate, as defined below.

Auction-Rate Preferred shareholders of each Fund, who are entitled to one vote per share, generally vote together with the common shareholders of the Fund but vote separately as a class to elect two Trustees of the Fund and on certain matters adversely affecting the rights of the ARPS.

Since mid-February 2008, holders of ARPS issued by the Funds have been directly impacted by a lack of liquidity, which has similarly affected ARPS holders in many of the nation's closed-end funds. Since then, regularly scheduled auctions for ARPS issued by the Funds have consistently "failed" because of insufficient demand (bids to buy shares) to meet the supply (shares offered for sale) at each auction. In a failed auction, ARPS holders cannot sell all, and may not be able to sell any, of their shares tendered for sale. While repeated auction failures have affected the liquidity for ARPS, they do not constitute a default or automatically alter the credit quality of the ARPS, and ARPS holders have continued to receive dividends at the defined "maximum rate," as defined for the Funds in the table below:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Fund Name |  | Applicable % |  | Reference Rate | Maximum Rate<sup>(1)</sup> |
|  PIMCO Corporate & Income Opportunity Fund |  | 200% | x | 7-day "AA" Financial Composite<br>Commercial Paper Rates | Maximum Rate for PTY |
|  PIMCO Corporate & Income Strategy Fund |  | 160% | x | 7-day "AA" Financial Composite<br>Commercial Paper Rates | Maximum Rate for PCN |
|  PIMCO High Income Fund |  | 160% | x | 7-day "AA" Financial Composite<br>Commercial Paper Rates | Maximum Rate for PHK |
|  PIMCO Income Strategy Fund | The higher of | 200%<br> 2.00% | x<br> + | LIBOR Replacement Rate<sup>(3)</sup><br>OR<br> LIBOR Replacement Rate<sup>(3)</sup> | Maximum Rate for PFL<sup>(2)</sup> |
|  PIMCO Income Strategy Fund II | The higher of | 200%<br> 2.00% | x<br> + | LIBOR Replacement Rate<sup>(3)</sup><br>OR<br> LIBOR Replacement Rate<sup>(3)</sup> | Maximum Rate for PFN<sup>(2)</sup> |

---

<sup>(1)</sup> In any event, the Maximum Rate will not be lower than 0%. 

<sup>(2)</sup> For the avoidance of doubt, the Maximum Rate for PFL and PFN may be less than the Applicable %, but will not be lower than 0%. 

<sup>(3)</sup> LIBOR Replacement Rate means prior business day's SOFR rate plus the spread adjustment of 0.03839%. 

The maximum rate is a function of short-term interest rates and is typically but not necessarily, higher than the rate that would have otherwise been set through a successful auction. If the Funds' ARPS auctions continue to fail and the "maximum rate" payable on the ARPS rises as a result of changes in short-term interest rates, returns for the Fund's common shareholders could be adversely affected.

With respect to PIMCO Income Strategy Fund and PIMCO Income Strategy Fund II, in connection with the future cessation of various LIBOR benchmarks/tenors currently published by ICE Benchmark Administration,

including the 1-week and 2-month U.S. dollar LIBOR effective after December 31, 2021, and all remaining U.S. dollar LIBOR tenors (overnight, 1-month, 3-month, 6-month and 12-month) effective after June 30, 2023, the Funds' Bylaws have been amended to provide that the maximum rate will be calculated using the Secured Overnight Funding Rate plus spread adjustments identified by the International Swaps and Derivatives Association, Inc., which are intended to closely approximate the applicable U.S. LIBOR rates. The amended Bylaws took effect on January 4, 2022 (the first auction date that would utilize a Reference Rate published in 2022).

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **111** |

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| | |
|:---|:---|
| Notes to Financial Statements | (Cont.) |

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There were no tender offers for the period ended December 31, 2022, and as such, the ARPS outstanding for each Fund as of December 31, 2022 remains consistent with those amounts presented in the Funds' Annual Report to Shareholders dated June 30, 2022.

15. REGULATORY AND LITIGATION MATTERS

The Funds are not named as defendants in any material litigation or arbitration proceedings and are not aware of any material litigation or claim pending or threatened against them.

On May 17, 2022, Allianz Global Investors U.S. LLC ("AGI U.S.") pleaded guilty in connection with the proceeding United States of America v. Allianz Global Investors U.S. LLC. AGI U.S. is an indirect subsidiary of Allianz SE. The conduct resulting in the matter described above occurred entirely within AGI U.S. and did not involve PIMCO or the Distributor, or any personnel of PIMCO or the Distributor. Nevertheless, because of the disqualifying conduct of AGI U.S., their affiliate, PIMCO would have been disqualified from serving as the investment adviser, and the Distributor would have been disqualified from serving as the principal underwriter, to the Funds in the absence of SEC exemptive relief. PIMCO and the Distributor have received exemptive relief from the SEC to permit them to continue serving as investment adviser and principal underwriter for U.S. registered investment companies, including the Funds.

The foregoing speaks only as of the date of this report.

16. FEDERAL INCOME TAX MATTERS

Each Fund intends to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code (the "Code") and distribute all of its taxable income and net realized gains, if applicable, to shareholders. Accordingly, no provision for Federal income taxes has been made. Due to the timing of when distributions are made by a Fund, the Fund may be subject to an excise tax of 4% of the amount by which 98% of the Fund's annual taxable income and 98.2% of net realized gains exceed the distributions from such taxable income and realized gains for the calendar year.

A Fund may be subject to local withholding taxes, including those imposed on realized capital gains. Any applicable foreign capital gains tax is accrued daily based upon net unrealized gains, and may be payable following the sale of any applicable investments.

In accordance with U.S. GAAP, the Manager has reviewed the Funds' tax positions for all open tax years. As of December 31, 2022, the Funds have recorded no liability for net unrecognized tax benefits relating to uncertain income tax positions they have taken or expect to take in future tax returns.

The Funds file U.S. federal, state, and local tax returns as required. The Funds' tax returns are subject to examination by relevant tax authorities until expiration of the applicable statute of limitations, which is generally three years after the filing of the tax return but which can be extended to six years in certain circumstances. Tax returns for open years have incorporated no uncertain tax positions that require a provision for income taxes.

Under the Regulated Investment Company Modernization Act of 2010, a fund is permitted to carry forward any new capital losses for an unlimited period. Additionally, such capital losses that are carried forward will retain their character as either short-term or long-term capital losses rather than being considered all short-term under previous law.

As of their last fiscal year ended June 30, 2022, the Funds had the following post-effective capital losses with no expiration (amounts in thousands<sup>†</sup>):

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| | | |
|:---|:---|:---|
|  | Short-Term | Long-Term |
|  PIMCO Corporate & Income Opportunity Fund | $&nbsp;&nbsp;&nbsp;&nbsp;181890 | $94902 |
|  PIMCO Corporate & Income Strategy Fund | 69963 | 43047 |
|  PIMCO High Income Fund | 174633 | &nbsp;&nbsp;&nbsp;&nbsp;148390 |
|  PIMCO Income Strategy Fund | 41093 | 28060 |
|  PIMCO Income Strategy Fund II | 95427 | 43143 |

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| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

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As of December 31, 2022, the aggregate cost and the net unrealized appreciation/(depreciation) of investments for federal income tax purposes are as follows (amounts in thousands<sup>†</sup>):

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| | | | | |
|:---|:---|:---|:---|:---|
|  | Federal Tax<br>Cost | Unrealized<br>Appreciation | Unrealized<br>(Depreciation) | Net Unrealized<br>Appreciation/<br>(Depreciation)<sup>(1)</sup> |
|  PIMCO Corporate & Income Opportunity Fund | $&nbsp;&nbsp;&nbsp;&nbsp;2371834 | $&nbsp;&nbsp;&nbsp;&nbsp;269514 | $&nbsp;&nbsp;&nbsp;&nbsp;(544142) | $&nbsp;&nbsp;&nbsp;&nbsp; (274628) |
|  PIMCO Corporate & Income Strategy Fund | 813208 | 116664 | (200339) | (83675) |
|  PIMCO High Income Fund | 1102057 | 245835 | (369788) | (123953) |
|  PIMCO Income Strategy Fund | 501971 | 79441 | (118624) | (39183) |
|  PIMCO Income Strategy Fund II | 951956 | 142645 | (233718) | (91073) |

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| | |
|:---|:---|
| <sup>†</sup> | A zero balance may reflect actual amounts rounding to less than one thousand.  |

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<sup>(1)</sup> Primary differences, if any, between book and tax net unrealized appreciation/(depreciation) are attributable to wash sale loss deferrals for federal income tax purposes. 

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| | |
|:---|:---|
| **112** | **PIMCO CLOSED-END FUNDS** |

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| | |
|:---|:---|
| December 31, 2022 | (Unaudited) |

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17. SUBSEQUENT EVENTS

In preparing these financial statements, the Funds' management has evaluated events and transactions for potential recognition or disclosure through the date the financial statements were issued.

On January 03, 2023, the following distributions were declared to common shareholders payable February 1, 2023 to shareholders of record on January 13, 2023:

---

| | |
|:---|:---|
|  PIMCO Corporate & Income Opportunity Fund | $0.118800 per common share |
|  PIMCO Corporate & Income Strategy Fund | $0.112500 per common share |
|  PIMCO High Income Fund | $0.048000 per common share |
|  PIMCO Income Strategy Fund | $&nbsp;&nbsp;&nbsp;&nbsp;0.081400 per common share |
|  PIMCO Income Strategy Fund II | $0.071800 per common share |

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On February 1, 2023, the following distributions were declared to common shareholders payable March 1, 2023 to shareholders of record on February 13, 2023:

---

| | |
|:---|:---|
|  PIMCO Corporate & Income Opportunity Fund | $0.118800 per common share |
|  PIMCO Corporate & Income Strategy Fund | $0.112500 per common share |
|  PIMCO High Income Fund | $0.048000 per common share |
|  PIMCO Income Strategy Fund | $&nbsp;&nbsp;&nbsp;&nbsp;0.081400 per common share |
|  PIMCO Income Strategy Fund II | $0.071800 per common share |

---

There were no other subsequent events identified that require recognition or disclosure.

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| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **113** |

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| | | |
|:---|:---|:---|
| Glossary: | (abbreviations that may be used in the preceding statements) | (Unaudited) |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  Counterparty Abbreviations: | Counterparty Abbreviations: |  |  |  |  |
| BOA | Bank of America N.A. | DUB | Deutsche Bank AG | MYI | Morgan Stanley & Co. International PLC |
| BOS | BofA Securities, Inc. | FICC | Fixed Income Clearing Corporation | NOM | Nomura Securities International, Inc. |
| BPS | BNP Paribas S.A. | GLM | Goldman Sachs Bank USA | RBC | Royal Bank of Canada |
| BRC | Barclays Bank PLC | GST | Goldman Sachs International | RCY | Royal Bank of Canada |
| BYR | The Bank of Nova Scotia - Toronto | HUS | HSBC Bank USA N.A. | RDR | RBC Capital Markets LLC |
| CBK | Citibank N.A. | IND | Crédit Agricole Corporate and Investment Bank S.A. | SCX | Standard Chartered Bank, London |
| CDC | Natixis Securities Americas LLC | JML | JP Morgan Securities Plc | SOG | Societe Generale Paris |
| CDI | Natixis Singapore | JPM | JP Morgan Chase Bank N.A. | TOR | The Toronto-Dominion Bank |
| CEW | Canadian Imperial Bank of Commerce World Markets | MBC | HSBC Bank Plc | UAG | UBS AG Stamford |
| CIB | Canadian Imperial Bank of Commerce | MEI | Merrill Lynch International | UBS | UBS Securities LLC |
| DBL | Deutsche Bank AG London | MYC | Morgan Stanley Capital Services LLC |  |  |
|  Currency Abbreviations: | Currency Abbreviations: |  |  |  |  |
| ARS | Argentine Peso | CNY | Chinese Renminbi (Mainland) | INR | Indian Rupee |
| AUD | Australian Dollar | CZK | Czech Koruna | JPY | Japanese Yen |
| BRL | Brazilian Real | EUR | Euro | MXN | Mexican Peso |
| CAD | Canadian Dollar | GBP | British Pound | NOK | Norwegian Krone |
| CHF | Swiss Franc | HUF | Hungarian Forint | PEN | Peruvian New Sol |
| CLP | Chilean Peso | IDR | Indonesian Rupiah | USD (or $) | United States Dollar |
|  Exchange Abbreviations: | Exchange Abbreviations: |  |  |  |  |
| OTC | Over the Counter |  |  |  |  |
|  Index/Spread Abbreviations: | Index/Spread Abbreviations: |  |  |  |  |
| ABX.HE | Asset-Backed Securities Index - Home Equity | EUR001Y | 1 Year EUR Swap Rate | SOFR | Secured Overnight Financing Rate |
| BADLARPP | Argentina Badlar Floating Rate Notes | LIBOR01M | 1 Month USD-LIBOR | SONIO | Sterling Overnight Interbank Average Rate |
| EUR001M | 1 Month EUR Swap Rate | LIBOR03M | 3 Month USD-LIBOR | US0003M | ICE 3-Month USD LIBOR |
| EUR003M | 3 Month EUR Swap Rate | LIBOR06M | 6 Month USD-LIBOR |  |  |
| EUR006M | 6 Month EUR Swap Rate |  |  |  |  |
|  Municipal Bond or Agency Abbreviations: | Municipal Bond or Agency Abbreviations: |  |  |  |  |
| ACA | American Capital Access Holding Ltd. |  |  |  |  |
|  Other Abbreviations: | Other Abbreviations: |  |  |  |  |
| ABS | Asset-Backed Security | CLO | Collateralized Loan Obligation | OIS | Overnight Index Swap |
| ALT | Alternate Loan Trust | DAC | Designated Activity Company | PIK | Payment-in-Kind |
| BABs | Build America Bonds | EBITDA | Earnings before Interest, Taxes, Depreciation and Amoritization | TBA | To-Be-Announced |
| BBR | Bank Bill Rate | EURIBOR | Euro Interbank Offered Rate | TBD | To-Be-Determined |
| BBSW | Bank Bill Swap Reference Rate | LIBOR | London Interbank Offered Rate | TBD% | Interest rate to be determined when loan settles or at the time of funding |
| BRL-CDI | Brazil Interbank Deposit Rate | Lunar | Monthly payment based on 28-day periods. One year consists of 13 periods. | TIIE | Tasa de Interés Interbancaria de Equilibrio "Equilibrium Interbank Interest Rate" |
| CDO | Collateralized Debt Obligation |  |  |  |  |

---

---

| | |
|:---|:---|
| **114** | **PIMCO CLOSED-END FUNDS** |

---

------

---

| | |
|:---|:---|
| Distribution Information | (Unaudited) |

---

For purposes of Section 19 of the Investment Company Act of 1940 (the "Act"), the Funds estimated the periodic sources of any dividends paid during the period covered by this report in accordance with good accounting practice. Pursuant to Rule 19a-1(e) under the Act, the table below sets forth the actual source information for dividends paid during the six month period ended December 31, 2022 calculated as of each distribution period pursuant to Section 19 of the Act. The information below is not provided for U.S. federal income tax reporting purposes. The tax character of all dividends and distributions is reported on Form 1099-DIV (for shareholders who receive U.S. federal tax reporting) at the end of each calendar year. See the Financial Highlights section of this report for the tax characterization of distributions determined in accordance with federal income tax regulations for the fiscal year.

---

| | | | | |
|:---|:---|:---|:---|:---|
| PIMCO Corporate & Income Opportunity Fund | Net Investment<br>Income\* | Net Realized<br>Capital Gains\* | Paid-in Surplus or<br>Other Capital<br>Sources\*\* | Total (per<br>common share) |
|  July 2022 | $&nbsp;&nbsp;&nbsp;&nbsp;0.1188 | $&nbsp;&nbsp;&nbsp;&nbsp;0.0000 | $&nbsp;&nbsp;&nbsp;&nbsp;0.0000 | $&nbsp;&nbsp;&nbsp;&nbsp;0.1188 |
|  August 2022 | $0.1188 | $0.0000 | $0.0000 | $0.1188 |
|  September 2022 | $0.1188 | $0.0000 | $0.0000 | $0.1188 |
|  October 2022 | $0.1188 | $0.0000 | $0.0000 | $0.1188 |
|  November 2022 | $0.1188 | $0.0000 | $0.0000 | $0.1188 |
|  December 2022 | $0.1188 | $0.0000 | $0.0000 | $0.1188 |
| PIMCO Corporate & Income Strategy Fund | Net Investment<br>Income\* | Net Realized<br>Capital Gains\* | Paid-in Surplus or<br>Other Capital<br>Sources\*\* | Total (per<br>common share) |
|  July 2022 | $0.1125 | $0.0000 | $0.0000 | $0.1125 |
|  August 2022 | $0.1125 | $0.0000 | $0.0000 | $0.1125 |
|  September 2022 | $0.1125 | $0.0000 | $0.0000 | $0.1125 |
|  October 2022 | $0.1125 | $0.0000 | $0.0000 | $0.1125 |
|  November 2022 | $0.1125 | $0.0000 | $0.0000 | $0.1125 |
|  December 2022 | $0.1125 | $0.0000 | $0.0000 | $0.1125 |
| PIMCO High Income Fund | Net Investment<br>Income\* | Net Realized<br>Capital Gains\* | Paid-in Surplus or<br>Other Capital<br>Sources\*\* | Total (per<br>common share) |
|  July 2022 | $0.0480 | $0.0000 | $0.0000 | $0.0480 |
|  August 2022 | $0.0480 | $0.0000 | $0.0000 | $0.0480 |
|  September 2022 | $0.0480 | $0.0000 | $0.0000 | $0.0480 |
|  October 2022 | $0.0480 | $0.0000 | $0.0000 | $0.0480 |
|  November 2022 | $0.0480 | $0.0000 | $0.0000 | $0.0480 |
|  December 2022 | $0.0480 | $0.0000 | $0.0000 | $0.0480 |
| PIMCO Income Strategy Fund | Net Investment<br>Income\* | Net Realized<br>Capital Gains\* | Paid-in Surplus or<br>Other Capital<br>Sources\*\* | Total (per<br>common share) |
|  July 2022 | $0.0814 | $0.0000 | $0.0000 | $0.0814 |
|  August 2022 | $0.0814 | $0.0000 | $0.0000 | $0.0814 |
|  September 2022 | $0.0814 | $0.0000 | $0.0000 | $0.0814 |
|  October 2022 | $0.0814 | $0.0000 | $0.0000 | $0.0814 |
|  November 2022 | $0.0814 | $0.0000 | $0.0000 | $0.0814 |
|  December 2022 | $0.0814 | $0.0000 | $0.0000 | $0.0814 |
| PIMCO Income Strategy Fund II | Net Investment<br>Income\* | Net Realized<br>Capital Gains\* | Paid-in Surplus or<br>Other Capital<br>Sources\*\* | Total (per<br>common share) |
|  July 2022 | $0.0718 | $0.0000 | $0.0000 | $0.0718 |
|  August 2022 | $0.0718 | $0.0000 | $0.0000 | $0.0718 |
|  September 2022 | $0.0718 | $0.0000 | $0.0000 | $0.0718 |
|  October 2022 | $0.0718 | $0.0000 | $0.0000 | $0.0718 |
|  November 2022 | $0.0687 | $0.0000 | $0.0031 | $0.0718 |
|  December 2022 | $0.0718 | $0.0000 | $0.0000 | $0.0718 |

---

\* The source of dividends provided in the table differs, in some respects, from information presented in this report prepared in accordance with generally accepted accounting principles, or U.S. GAAP. For example, net earnings from certain interest rate swap contracts are included as a source of net investment income for purposes of Section 19(a). Accordingly, the information in the table may differ from information in the accompanying financial statements that are presented on the basis of U.S. GAAP and may differ from tax information presented in the footnotes. Amounts shown may include accumulated, as well as fiscal period net income and net profits. 

\*\* Occurs when a fund distributes an amount greater than its accumulated net income and net profits. Amounts are not reflective of a fund's net income, yield, earnings or investment performance. 

---

| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **115** |

---

------

---

| | |
|:---|:---|
| Investment Strategy Updates | (Unaudited) |

---

The Board of Trustees of PIMCO High Income Fund approved removal of a non-fundamental investment disclosure guideline governing the amount of leverage the Fund can maintain and related asset segregation and coverage requirements that are no longer applicable to the Fund, effective as of December 22, 2022. The Fund remains subject to other applicable leverage limitations under Section 18 of the 1940 Act and related rules.

---

| | |
|:---|:---|
| **116** | **PIMCO CLOSED-END FUNDS** |

---

------

---

| | |
|:---|:---|
| Changes to Boards of Trustees | (Unaudited) |

---

Effective July 1, 2022, the Board of Trustees appointed Ms. Kathleen McCartney to the Board as a Class I Trustee of PIMCO Corporate & Income Strategy Fund and PIMCO Income Strategy Fund and Class III Trustee of PIMCO Corporate & Income Opportunity Fund, PIMCO High Income Fund and PIMCO Income Strategy Fund II.

Effective December 31, 2022, Mr. William B. Ogden, IV retired from his position as Trustee of the Funds.

---

| | | | |
|:---|:---|:---|:---|
| **SEMIANNUAL REPORT** | \| | DECEMBER 31, 2022 | **117** |

---

------

#### General Information
Investment Manager

Pacific Investment Management Company LLC

650 Newport Center Drive

Newport Beach, CA 92660

Custodian

State Street Bank and Trust Company

801 Pennsylvania Avenue

Kansas City, MO 64105

Transfer Agent, Dividend Paying Agent and Registrar for Common Shares

American Stock Transfer & Trust Company, LLC

6201 15th Avenue

Brooklyn, NY 11219

Auction Agent, Transfer Agent, Dividend Paying Agent and Registrar for Auction Rate Preferred Shares

Deustsche Bank Company Americas

1 Columbus Circle

New York, NY 10019

Legal Counsel

Ropes & Gray LLP

Prudential Tower

800 Boylston Street

Boston, MA 02199

Independent Registered Public Accounting Firm

PricewaterhouseCoopers LLP

1100 Walnut Street, Suite 1300

Kansas City, MO 64106

This report is submitted for the general information of the shareholders of the Funds listed on the Report cover.

------

![LOGO](g414266g1g75h91.jpg)

CEF4011SAR_123122

------

**Item 2.** **Code of Ethics.** <br>

The information required by this Item 2 is only required in an annual report on this Form N-CSR.

**Item 3.** **Audit Committee Financial Expert.** <br>

The information required by this Item 3 is only required in an annual report on this Form N-CSR.

**Item 4.** **Principal Accountant Fees and Services.** <br>

The information required by this Item 4 is only required in an annual report on this Form N-CSR.

**Item 5.** **Audit Committee of Listed Registrants.** <br>

The information required by this Item 5 is only required in an annual report on this Form N-CSR.

**Item 6.** **Schedule of Investments.** <br>

The information required by this Item 6 is included as part of the annual report to shareholders filed under Item 1 of this Form N-CSR.

**Item 7.** **Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.** <br>

The information required by this Item 7 is only required in an annual report on this Form N-CSR.

**Item 8.** **Portfolio Managers of Closed-End Management Investment Companies.** <br>

(a) The information required by this Item 8(a) is only required in an annual report on this Form N-CSR.

(b) There have been no changes in any of the Portfolio Managers identified in the registrant's previous annual report on Form N-CSR.

**Item 9.** **Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.** <br>

None.

**Item 10.** **Submission of Matters to a Vote of Security Holders.** <br>

There have been no material changes to the procedures by which shareholders may recommend nominees to the Fund's Board of Trustees since the Fund last provided disclosure in response to this item.

**Item 11.** **Controls and Procedures.** <br>

(a) The principal executive officer and principal financial & accounting officer have concluded as of a date within 90 days of the filing date of this report, based on their evaluation of the Registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the 1940 Act), that the design of such procedures is effective to provide reasonable assurance that material information required to be disclosed by the Registrant on Form N-CSR is recorded, processed, summarized and reported within the time periods specified in the Commission's rules and forms.

(b) There were no changes in the Registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d))) that occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, the Registrant's internal control over financial reporting.

**Item 12.** **Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.** <br>

------

None.

**Item 13.** **Exhibits.** <br>

(a)(1) Exhibit 99.CODE—Code of Ethics is not applicable for semiannual reports.

(a)(2) [Exhibit 99.CERT—Certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](d414266dex99cert.htm)

(a)(3) None.

(a)(4) There was no change in the registrant's independent public accountant for the period covered by the report.

(b) [Exhibit 99.906CERT—Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](d414266dex99906cert.htm)

------

#### Signatures
Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | |
|:---|:---|
| PIMCO Corporate & Income Opportunity Fund | PIMCO Corporate & Income Opportunity Fund |
| By: | /s/&nbsp;&nbsp;&nbsp;&nbsp;Eric D. Johnson<br> &nbsp;&nbsp;&nbsp;&nbsp; |
|  | Eric D. Johnson |
|  | President (Principal Executive Officer)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |
| Date: March 8, 2023 | Date: March 8, 2023 |

---

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

---

| | |
|:---|:---|
| By: | /s/&nbsp;&nbsp;&nbsp;&nbsp;Eric D. Johnson<br> &nbsp;&nbsp;&nbsp;&nbsp; |
|  | Eric D. Johnson |
|  | President (Principal Executive Officer) |
| Date: March 8, 2023 | Date: March 8, 2023 |
| By: | /s/&nbsp;&nbsp;&nbsp;&nbsp;Bijal Y. Parikh<br> &nbsp;&nbsp;&nbsp;&nbsp; |
|  | Bijal Y. Parikh |
|  | Treasurer (Principal Financial & Accounting Officer)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |
| Date: March 8, 2023 | Date: March 8, 2023 |

---

## Ex-99.Cert

**Exhibit 99.CERT** 

**<u>Certification Under Rule 30a-2(a)</u>**

**CERTIFICATION** 

I, Eric D. Johnson, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this report on Form N-CSR of PIMCO Corporate &
Income Opportunity Fund;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the
periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and
have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Designed such internal control over financial reporting, or caused such internal control over financial
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this
report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) Disclosed in this report any change in the registrant's internal control over financial reporting that
occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer and I have disclosed to the registrant's auditors and the
audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) All significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| Date: | March 8, 2023<br>|
| Signature: | /s/ Eric D. Johnson<br>|
| Title: | President (Principal Executive Officer) <br>|

---

------

**Exhibit 99.CERT** 

**<u>Certification Under Rule 30a-2(a)</u>**

**CERTIFICATION** 

I, Bijal Y. Parikh, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this report on Form N-CSR of PIMCO Corporate &
Income Opportunity Fund;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the
periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Designed such internal control over financial reporting, or caused such internal control over financial
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this
report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) Disclosed in this report any change in the registrant's internal control over financial reporting that
occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer and I have disclosed to the registrant's auditors and the
audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) All significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| Date: | March 8, 2023<br>|
| Signature: | /s/ Bijal Y. Parikh<br>|
| Title: | Treasurer (Principal Financial & Accounting Officer) <br>|

---

## Exhibit 99.906

**Exhibit 99.906CERT** 

**<u>Certification Under Rule 30a-2(b)</u>**

**CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350** 

**(as adopted pursuant to Section 906 of the Sarbanes-Oxley Act)** 

In connection with the Report on Form N-CSR to which this certification is furnished as an exhibit (the "Report"), the undersigned officers of PIMCO Corporate & Income Opportunity Fund (the "Registrant") each certify that to his knowledge:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. The Report on Form N-CSR fully complies with the requirements of Section 13(a) or 15(d) of the Securities
Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. The information contained in the Report on Form N-CSR fairly presents, in all material respects, the financial
condition and results of operations of the Registrant.

---

| | | | |
|:---|:---|:---|:---|
| By: | /s/ Eric D. Johnson<br>| By: | /s/ Bijal Y. Parikh<br>|
| Name: | Eric D. Johnson<br>| Name: | Bijal Y. Parikh<br>|
| Title: | President (Principal Executive Officer)<br>| Title: | Treasurer (Principal Financial & Accounting Officer)<br>|
| Date: | March 8, 2023<br>| Date: | March 8, 2023<br>|

---

**A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Registrant and will be retained by the Registrant and furnished to the Securities and Exchange Commission (the "Commission") or its staff upon request.** 

This certification is being furnished to the Commission solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Reports.