# EDGAR Filing Document

**Accession Number:** 0000813900
**File Stem:** 0001104659-26-051822
**Filing Date:** 2026-4
**Character Count:** 20986
**Document Hash:** 9bea7ef90f87eba5b4d6ac4866617b33
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-051822.hdr.sgml**: 20260430

**ACCESSION NUMBER**: 0001104659-26-051822

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260430

**DATE AS OF CHANGE**: 20260429

**EFFECTIVENESS DATE**: 20260430

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PACIFIC SELECT FUND
- **CENTRAL INDEX KEY:** 0000813900

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-13954
- **FILM NUMBER:** 26918535

**BUSINESS ADDRESS:**
- **STREET 1:** 700 NEWPORT CTR DR
- **STREET 2:** P O BOX 7500
- **CITY:** NEWPORT BEACH
- **STATE:** CA
- **ZIP:** 92660
- **BUSINESS PHONE:** 9492193233

**MAIL ADDRESS:**
- **STREET 1:** 700 NEWPORT CTR DR
- **STREET 2:** P O BOX 7500
- **CITY:** NEWPORT BEACH
- **STATE:** CA
- **ZIP:** 92660

## Series and Classes Contracts Data

### Core Income Portfolio (Series ID: S000048866)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000153750 | Class I      |  |
| C000153751 | Class P      |  |

![[MISSING IMAGE: psf-logo.jpg]](tm266467d1497ki001.jpg)

#### Summary Prospectus dated May 1, 2026

#### Class I and Class P Shares

### Core Income Portfolio
This Summary Prospectus is intended for use in connection with variable life insurance policies and variable annuity contracts issued by Pacific Life Insurance Company ("Pacific Life") and Pacific Life & Annuity Company ("PL&A") and is not intended for use by other investors.

Before you invest, you may want to review the Fund's Prospectus, as may be supplemented or amended from time to time, which contains more information about the Fund and its risks. You can find the Fund's Prospectus, reports to shareholders, and other information about the Fund online at www.pacificlife.com/PacificSelectFund.html. You can also obtain this information at no cost by sending an email request to PSFdocumentrequest@pacificlife.com or by calling (6 a.m. – 5 p.m. Pacific time, Monday through Friday):

Pacific Life Annuity Contract Owners: 1-800-722-4448 PL&A Annuity Contract Owners: 1-800-748-6907 <br> Annuity Financial Advisors: 1-800-722-2333 PL&A Life Insurance Policy Owners: 1-888-595-6997 <br> Pacific Life Insurance Policy Owners: 1-800-347-7787

The Fund's Prospectus and Statement of Additional Information, both dated May 1, 2026, as may be supplemented or amended from time to time, are incorporated by reference into this Summary Prospectus.

#### Investment Goal
This Fund seeks a high level of current income; capital appreciation is of secondary importance.

#### Fees and Expenses of the Fund
This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. **You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Examples below. The table and Examples below also do not reflect expenses and charges that are imposed under your variable annuity contract or variable life insurance policy.** For information on these expenses and charges, please refer to the applicable contract or policy prospectus. If these fees and expenses were included, the fees and expenses shown would be higher.

**Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment)

---

| | | |
|:---|:---|:---|
|  | **Class I**  | **Class P**  |
| Management Fee | 0.50% | 0.50% |
| Service Fee | 0.20% | N/A |
| Other Expenses | 0.05% | 0.05% |
| Total Annual Fund Operating Expenses | 0.75% | 0.55% |

---

#### Examples
The Examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other Funds of the Trust or other mutual funds. The Examples assume that you invest $10,000 for the time periods indicated, that your investment has a 5% return each year and that the Fund's annual operating expenses remain as stated in the previous table for the time periods shown. Although your actual costs may be higher or lower, the Examples show what your costs would be based on these assumptions.

These Examples do not reflect fees and expenses of any variable annuity contract or variable life insurance policy. If these were included, the expenses (in dollars) shown would be higher. Keep

in mind that this is only an estimate; actual expenses and performance may vary.

#### Your expenses (in dollars) if you buy, sell/redeem or hold all of your shares at the end of each period

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| | | | | |
|:---|:---|:---|:---|:---|
|  | **1 year**  | **3 years**  | **5 years**  | **10 years**  |
| Class I | $77 | $240 | $417 | $930 |
| Class P | $56 | $176 | $307 | $689 |

---

#### Portfolio Turnover
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its holdings). During the fiscal year ended December 31, 2025, the portfolio turnover rate was 69% of the average value of the Fund. A higher portfolio turnover rate reflects a greater number of securities being bought or sold, which may indicate higher transaction costs. These costs, which are not reflected in *Annual Fund Operating Expenses* or in the *Examples,* affect the Fund's performance.

#### Principal Investment Strategies
This Fund invests principally in income producing debt instruments. Under normal circumstances, the Fund will invest at least 60% of its assets in investment grade debt instruments, including corporate debt securities, asset-backed securities, mortgage-related securities, U.S. government securities and agency securities. The Fund may invest up to 40% of its assets in non-investment grade (high yield/high risk, sometimes called "junk bonds") debt instruments and floating rate senior loans. Debt instruments in which the Fund invests may include those denominated in U.S. dollars and issued by foreign entities in developed markets.

The Fund expects to maintain a weighted average duration within two years (plus or minus) of the Bloomberg US Aggregate Bond Index. Duration is often used to measure a bond's sensitivity to interest rates. The longer a fund's duration, the more sensitive it is to *interest rate risk*. The shorter a fund's duration, the less sensitive it is to *interest rate risk*. As of December 31, 2025, the duration of the Bloomberg US Aggregate Bond Index was 5.94 years, and the duration of the Fund was 6.00 years.

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***Fundamental Research Process.*** Individual investment selection is based on the sub-adviser's fundamental research process. The sub-adviser's fundamental research process combines a bottom-up issuer analysis and top-down market assessment. A bottom-up issuer analysis relies upon the sub-adviser's fundamental research analysis of individual issuers. A top-down market assessment provides a framework for portfolio risk positioning and sector allocations. Once this is determined, the sub-adviser looks for companies that it believes have sustainable competitive positions, strong management teams and the ability to repay or refinance its debt obligations. The sub-adviser performs a credit analysis on each potential issuer and a relative value analysis for each potential investment. When selecting investments, the sub-adviser may invest in instruments that it believes have the potential for capital appreciation.

An investment is generally sold when the sub-adviser believes that the issue has realized its price appreciation target, the issue no longer offers relative value, or an adverse change in corporate or sector fundamentals has occurred.

The Fund may lend its portfolio holdings to certain financial institutions.

#### Principal Risks
As with any mutual fund, the value of the Fund's investments, and therefore the value of your shares, may go up or down and you could lose money. There is no guarantee that the Fund will achieve its investment goal. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. *Italicized* terms refer to separate Principal Risks that are each defined in the *Principal Risks* section below.

While the Fund may be subject to various risk exposures at any given time depending on market conditions and other factors impacting holdings and investment strategies, the Fund under normal circumstances is subject to the following principal risks:

**•** <br>

**Debt Securities Risk:** Debt securities and other debt instruments are subject to many risks, including *interest rate risk* and *credit risk*, which may affect their value.

**•** <br>

**Credit Risk:** An issuer or guarantor of a debt instrument might be unable or unwilling to meet its financial obligations and might not make interest or principal payments on an instrument when those payments are due ("default"). The risk of a default is higher for debt instruments that are non-investment grade and lower for debt instruments that are of higher quality. Defaults may potentially reduce the Fund's income or ability to recover amounts due and may reduce the value of the debt instrument, sometimes dramatically.

**•** <br>

**High Yield/High Risk or "Junk" Securities Risk:** High yield/high risk securities are typically issued by companies that are highly leveraged, less creditworthy or financially distressed and are considered to be mostly speculative in nature (high risk), subject to greater *liquidity risk*, and subject to a greater risk of default than higher rated securities. High yield/high risk securities (including loans) may be more volatile than investment grade securities.

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

**•** <br>

**Interest Rate Risk:** When interest rates rise, the value of debt investments will generally decrease. During periods when the Federal Reserve raises interest rates, the Fund may be subject to heightened levels of interest rate risk. During periods when interest rates are low or there are negative interest rates, the Fund's yield (and total return) also may be low and the Fund may experience low or negative returns. Debt instruments with longer durations tend to be more sensitive to changes in interest rates, making them more volatile than debt instruments with shorter durations or floating or adjustable interest rates.

**•** <br>

**Active Management Risk:** A portfolio manager's judgments about the potential value or price appreciation of an investment may prove to be incorrect or fail to have the intended results, which could negatively impact the Fund's performance.

**•** <br>

**Floating Rate Loan Risk:** Floating rate loans (or bank loans) are usually rated below investment grade and thus are subject to *high yield/high risk or "junk" securities risk*. The market for floating rate loans is a private interbank resale market and thus may be subject to irregular trading activity, wide bid/ask spreads and delayed settlement periods. Purchases and sales of loans are generally subject to contractual restrictions that must be fulfilled before a loan can be bought or sold. These restrictions may hamper the Fund's ability to buy or sell loans and negatively affect the transaction price. A significant portion of the floating rate loans held by the Fund may be "covenant lite" loans that contain fewer or less restrictive constraints on the borrower or other borrower-friendly characteristics and offer less protections for investors than covenant loans. It may take longer than seven days for transactions in loans to settle. This may result in cash proceeds not being immediately available to the Fund, requiring the Fund to borrow cash which would increase the Fund's expenses. The Fund is also subject to *credit risk* with respect to the issuer of the loan. Investments in junior loans involve a higher degree of overall risk.

U.S. federal securities laws afford certain protections against fraud and misrepresentation in connection with the offering or sale of a security, as well as against manipulation of trading markets for securities. However, it is unclear whether these protections are available to an investment in a loan.

**•** <br>

**Foreign (Non-U.S.) Markets Risk:** Investing in foreign issuers (companies or other entities) can involve more risks than investing in United States ("U.S.") issuers, such as risks relating to market, economic, political, regulatory and geopolitical conditions relevant to that market. These factors can make investments in foreign issuers more volatile and less liquid than U.S. investments. Less stringent regulatory, accounting, and disclosure requirements and general supervision for issuers and markets are more common in certain foreign countries. Enforcing legal rights can be difficult, costly, and slow in certain foreign countries, and can be particularly difficult against foreign governments. In addition, foreign markets can react differently to these conditions than the U.S. market. Markets and economies throughout the world are becoming increasingly interconnected, and

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conditions or events in one market, country or region may adversely impact investments or issuers in, or foreign exchange rates with, another market, country or region.

**•** <br>

**Liquidity Risk:** Certain holdings may be difficult to purchase, sell and value, particularly during adverse market conditions, because there is a limited market for the investment or there are restrictions on resale. The Fund may not be able to sell a holding quickly at the price it has valued the holding, may be unable to take advantage of market opportunities or may be forced to sell other more desirable, more liquid securities or sell less liquid or illiquid securities at a loss if needed to raise cash to conduct operations, including to meet redemption requests.

**•** <br>

**Mortgage-Related and Other Asset-Backed Securities Risk:** Mortgage-related and other asset-backed securities are subject to certain risks affecting the housing market or the market for the assets underlying such securities. These securities are also subject to extension risk (the risk that rising interest rates extend the duration of fixed mortgage-related and other asset-backed securities, making them more sensitive to changes in interest rates), interest rate risk (the risk that rising interest rates will cause a decline in the value of a fixed income security), subprime risk (the risk that these securities have exposure to borrowers with lower credit risk, increasing potential default), prepayment risk (when interest rates decline, borrowers may pay off their mortgages sooner than expected which can reduce the Fund's returns because the Fund may have to reinvest its assets at lower interest rates), call risk (similar to prepayment risk, an issuer may pay its obligations under a security sooner than expected), U.S. government securities risk (securities backed by different U.S. government agencies are subject to varying levels of credit rating risk), issuer risk (the risk that a private issuer cannot meet its obligations) and stripped mortgage-related securities risk (these securities are particularly sensitive to changes in interest rates).

**•** <br>

**U.S. Government Securities Risk:** Not all U.S. government securities are backed or guaranteed by the U.S. government and different U.S. government securities are subject to varying degrees of *credit risk*. There is a risk that the U.S. government will not make timely payments on its debt or provide financial support to U.S. government agencies, instrumentalities or sponsored enterprises if those entities are not able to meet their financial obligations.

**•** <br>

**Underlying Fund Risk:** Because the Fund is available for investment by one or more "fund of funds" of the Trust and thus may have a significant percentage of its outstanding shares held by such fund of funds, a change in asset allocation by the fund of funds could result in large redemptions out of the Fund, causing the sale of securities in a short timeframe and potential increases in expenses to the Fund and its remaining shareholders, both of which could negatively impact performance.

**•** <br>

**Securities Lending Risk:** The Fund may engage in securities lending, which involves the risk that the Fund may suffer a loss if the borrower fails to return the loaned securities in a timely manner or at all. The Fund could also lose money due to the decline in the value of the collateral provided or a decline in the value of any investments made with cash collateral.

#### Performance
The bar chart and Average Annual Total Returns table below provide some indication of the risk of investing in the Fund by showing changes in the performance of the Fund from year to year and showing how the Fund's average annual total returns compare to a broad-based domestic debt market index. The bar chart shows the performance of the Fund's Class I shares. Returns do not reflect fees and expenses of any variable annuity contract or variable life insurance policy; if these fees and expenses were included, the returns shown would be lower. Past performance is not necessarily an indication of how the Fund will perform in the future. Performance reflects fee waivers or expense limitations, if any, that were in effect during the periods presented.

Aristotle Pacific Capital, LLC began managing the Fund on April 17, 2023. Other firms managed the Fund before that date.

#### Calendar Year Total Returns (%)
![[MISSING IMAGE: past-performance.jpg]](tm266467d1497ki002.jpg)

#### Best and worst quarterly performance reflected within the bar chart: Q2 2020: 7.16%; Q2 2022: (6.33%)

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| | | | |
|:---|:---|:---|:---|
| **Average Annual Total Returns**<br>**(For the periods ended <br>December 31, 2025)**  | <br> **1 year**  | <br> **5 years**  | <br> **10 years**  |
| Class I *(incepted April 27, 2015)* | 6.73% | 0.66% | 3.13% |
| Class P *(incepted April 27, 2015)* | 6.94% | 0.86% | 3.34% |
|  *Bloomberg US Aggregate Bond Index (reflects no deductions for fees, expenses, or taxes)* | 7.30% | (0.36%) | 2.01% |

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#### Management

#### Investment Adviser — Pacific Life Fund Advisors LLC
**Sub-Adviser —** Aristotle Pacific Capital, LLC. The persons jointly and primarily responsible for day-to-day management of the Fund are:

---

| | |
|:---|:---|
| **Portfolio Manager and Primary Title with <br>Sub-Adviser** | **Experience <br>with Fund** |
|  David Weismiller, CFA, Senior Managing Director and Portfolio Manager | Since 2015 <br>(Fund Inception) |
|  Michael Marzouk, CFA, Senior Managing Director and Portfolio Manager | Since 2016 |
|  Brian M. Robertson, CFA, Senior Managing Director and Portfolio Manager | Since 2016 |
|  Ying Qiu, CFA, Managing Director and Portfolio Manager | Since 2021 |
|  Jeff Klingelhofer, CFA, Managing Director and Portfolio Manager | Since 2025 |

---

#### Purchase and Sale of Fund Shares
The Fund is offered at net asset value ("NAV") and is available as an underlying investment option for variable life insurance

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policies and variable annuity contracts ("variable products") issued by Pacific Life and PL&A. You do not buy, sell or exchange shares of the Fund — you choose investment options through your variable product. The life insurance companies then invest in the Fund if you choose it as an investment option and redeem shares of the Fund if you choose to decrease that investment option. Any minimum initial or subsequent investment requirements and procedures for purchase or redemption of shares of the Fund that apply to your variable product are described in the prospectus for the variable product.

#### Tax Information
Because the only shareholders of the Fund are the insurance companies offering the variable products and as applicable certain funds of funds of the Trust, no discussion is included here about the federal income tax consequences at the shareholder level. The federal income tax consequences for purchasers of a variable product are described in the prospectus for the variable product.

#### Payments to Broker-Dealers and Other Financial Intermediaries
Pacific Select Distributors, LLC ("PSD"), the distributor for the Fund and for the variable products, may pay broker-dealers or other financial intermediaries (such as insurance companies) for the sale of the variable products and related services, including shareholder servicing. The Fund's service fee, which is paid to PSD, can be used for a part of these payments. These payments may create a conflict of interest by influencing the financial intermediary and your salesperson to recommend the variable product, a share class and/or the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information. Class P shares do not pay a service fee to PSD.

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