# EDGAR Filing Document

**Accession Number:** 0000863032
**File Stem:** 0001752724-23-068536
**Filing Date:** 2023-3
**Character Count:** 46336
**Document Hash:** 0f1904bc64d68c11bf92895fa4009b02
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-068536.hdr.sgml**: 20230328

**ACCESSION NUMBER**: 0001752724-23-068536

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20230131

**FILED AS OF DATE**: 20230328

**DATE AS OF CHANGE**: 20230328

**PERIOD START**: 20231031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS SERIES TRUST VI
- **CENTRAL INDEX KEY:** 0000863032
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-06102
- **FILM NUMBER:** 23766990

**BUSINESS ADDRESS:**
- **STREET 1:** 111 HUNTINGTON AVENUE
- **STREET 2:** 21ST FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199
- **BUSINESS PHONE:** 18006372929

**MAIL ADDRESS:**
- **STREET 1:** 111 HUNTINGTON AVENUE
- **STREET 2:** 21ST FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MFS WORLDWIDE TOTAL RETURN FUND
- **DATE OF NAME CHANGE:** 19930408

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MFS WORLDWIDE TOTAL RETURN TRUST
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### MFS Utilities Fund (Series ID: S000002470)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000006635 | A            | MMUFX           |
| C000006636 | R4           | MMUJX           |
| C000006637 | B            | MMUBX           |
| C000006638 | C            | MMUCX           |
| C000006639 | I            | MMUIX           |
| C000006641 | R1           | MMUGX           |
| C000006643 | R2           | MURRX           |
| C000006644 | R3           | MMUHX           |
| C000070410 | R6           | MMUKX           |

## Nport-Ex

![](img4ea01ebf1.gif)

### Quarterly Report
January 31, 2023

MFS<sup>®</sup> Utilities Fund

![](img53f25cda2.gif)

MMU-Q1

------

### Portfolio of Investments
1/31/23 (unaudited)

The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes.

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | &nbsp;&nbsp;&nbsp;**Value ($)** |
| Common Stocks – 98.9% | Common Stocks – 98.9% | Common Stocks – 98.9% |
| Energy - Renewables – 5.6% | Energy - Renewables – 5.6% |  |
| AES Corp. | &nbsp;&nbsp;&nbsp;2482603 | $68048148 |
| EDP Renovaveis S.A. | &nbsp;&nbsp;&nbsp;4284383 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;93322783 |
| Orsted A/S | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;187564 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16718468 |
|  |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$178089399 |
| Natural Gas - Distribution – 2.1% | Natural Gas - Distribution – 2.1% |  |
| Atmos Energy Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;396597 | $46616011 |
| China Resources Gas Group Ltd. | &nbsp;&nbsp;&nbsp;4935400 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;20739487 |
|  |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$67355498 |
| Telecommunications - Wireless – 5.5% | Telecommunications - Wireless – 5.5% |  |
| Cellnex Telecom S.A. | &nbsp;&nbsp;&nbsp;2765477 | $108521873 |
| Rogers Communications, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;662134 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;32192288 |
| SBA Communications Corp., REIT | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;121141 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;36043081 |
|  |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$176757242 |
| Telephone Services – 0.6% | Telephone Services – 0.6% |  |
| Hellenic Telecommunications Organization S.A. | &nbsp;&nbsp;&nbsp;1128630 | $17754547 |
| Utilities - Electric Power – 83.9% | Utilities - Electric Power – 83.9% |  |
| ALLETE, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;479128 | $29638858 |
| Alliant Energy Corp. | &nbsp;&nbsp;&nbsp;1384887 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;74825445 |
| Ameren Corp. | &nbsp;&nbsp;&nbsp;1080857 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;93894048 |
| American Electric Power Co., Inc. | &nbsp;&nbsp;&nbsp;1159829 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;108977533 |
| CenterPoint Energy, Inc. | &nbsp;&nbsp;&nbsp;1549869 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;46682054 |
| CLP Holdings Ltd. | &nbsp;&nbsp;&nbsp;3491000 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;25977346 |
| Constellation Energy | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;900043 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;76827670 |
| Dominion Energy, Inc. | &nbsp;&nbsp;&nbsp;2779410 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;176881652 |
| DTE Energy Co. | &nbsp;&nbsp;&nbsp;1025281 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;119311950 |
| E.ON SE | &nbsp;&nbsp;&nbsp;6504304 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;70672778 |
| Edison International | &nbsp;&nbsp;&nbsp;1559343 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;107438733 |
| Enel S.p.A. | &nbsp;&nbsp;14069969 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;82816063 |
| Energias de Portugal S.A. | &nbsp;&nbsp;&nbsp;8226319 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;40885430 |
| Energisa S.A., IEU | &nbsp;&nbsp;&nbsp;2012500 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16750020 |
| Entergy Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;420648 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;45547765 |
| Equatorial Energia S.A. | &nbsp;&nbsp;&nbsp;3330800 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;18385244 |
| Evergy, Inc. | &nbsp;&nbsp;&nbsp;1054093 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;66038926 |
| Exelon Corp. | &nbsp;&nbsp;&nbsp;1138894 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;48049938 |
| Iberdrola S.A. | &nbsp;&nbsp;&nbsp;7558013 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;88382843 |
| National Grid PLC | &nbsp;&nbsp;&nbsp;4384007 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;55763911 |
| NextEra Energy, Inc. | &nbsp;&nbsp;&nbsp;4709596 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;351477149 |
| PG&E Corp. (a) | &nbsp;&nbsp;12188452 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;193796387 |
| Pinnacle West Capital Corp. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;564756 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;42102560 |
| Portland General Electric Co. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;779717 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;37098935 |
| PPL Corp. | &nbsp;&nbsp;&nbsp;2914682 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;86274587 |
| Public Service Enterprise Group, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;746785 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;46248395 |
| RWE AG | &nbsp;&nbsp;&nbsp;2398544 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;106389147 |
| Sempra Energy | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;961829 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;154210044 |
| Southern Co. | &nbsp;&nbsp;&nbsp;2139142 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;144777131 |
| SSE PLC | &nbsp;&nbsp;&nbsp;3537544 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;75516310 |
| Xcel Energy, Inc. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;586186 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;40312011 |
|  |  | &nbsp;&nbsp;&nbsp;$2671950863 |
| Utilities - Water – 1.2% | Utilities - Water – 1.2% |  |
| Veolia Environnement S.A. | &nbsp;&nbsp;&nbsp;1265304 | $37547858 |
| **Total Common Stocks** |  | &nbsp;&nbsp;**$3149455407** |

---

------

Portfolio of Investments (unaudited) – continued

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | &nbsp;&nbsp;&nbsp;**Value ($)** |
| Convertible Preferred Stocks – 0.3% | Convertible Preferred Stocks – 0.3% | Convertible Preferred Stocks – 0.3% |
| Utilities - Electric Power – 0.3% | Utilities - Electric Power – 0.3% |  |
| NextEra Energy, Inc., 5.279% | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;175500 | $8773245 |
| Investment Companies (h) – 0.7% | Investment Companies (h) – 0.7% | Investment Companies (h) – 0.7% |
| Money Market Funds – 0.7% | Money Market Funds – 0.7% |  |
| MFS Institutional Money Market Portfolio, 4.29% (v) | 20644639 | &nbsp;&nbsp;&nbsp;$20646704 |
| Other Assets, Less Liabilities – 0.1% |  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4077375 |
| **Net Assets – 100.0%** | **Net Assets – 100.0%** | &nbsp;&nbsp;&nbsp;**$3182952731** |

---

(a) Non-income producing security.

(h) An affiliated issuer, which may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. At period end,
the aggregate values of the fund's investments in affiliated issuers and in unaffiliated issuers were $20,646,704 and $3,158,228,652, respectively.

(v) Affiliated issuer that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized
seven-day yield of the fund at period end.

---

| | |
|:---|:---|
| The following abbreviations are used in this report and are defined: | The following abbreviations are used in this report and are defined: |
| IEU | International Equity Unit |
| REIT | Real Estate Investment Trust |
| Abbreviations indicate amounts shown in currencies other than the U.S. dollar. All amounts are stated in U.S. dollars unless otherwise indicated. A list of abbreviations is shown below: | Abbreviations indicate amounts shown in currencies other than the U.S. dollar. All amounts are stated in U.S. dollars unless otherwise indicated. A list of abbreviations is shown below: |
| CAD | Canadian Dollar |
| EUR | Euro |
| GBP | British Pound |
| SEK | Swedish Krona |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Derivative Contracts at 1/31/23** | **Derivative Contracts at 1/31/23** | **Derivative Contracts at 1/31/23** | **Derivative Contracts at 1/31/23** | **Derivative Contracts at 1/31/23** | **Derivative Contracts at 1/31/23** | **Derivative Contracts at 1/31/23** |
| **Forward Foreign Currency Exchange Contracts** | **Forward Foreign Currency Exchange Contracts** | **Forward Foreign Currency Exchange Contracts** | **Forward Foreign Currency Exchange Contracts** | **Forward Foreign Currency Exchange Contracts** | **Forward Foreign Currency Exchange Contracts** | **Forward Foreign Currency Exchange Contracts** |
| **Currency<br> Purchased** | **Currency<br> Purchased** | &nbsp;&nbsp;**Currency<br> Sold** | &nbsp;&nbsp;**Currency<br> Sold** | &nbsp;&nbsp;**Counterparty** | &nbsp;&nbsp;**Settlement<br> Date** | &nbsp;&nbsp;**Unrealized<br> Appreciation<br> (Depreciation)** |
| **Asset Derivatives** | **Asset Derivatives** | **Asset Derivatives** | **Asset Derivatives** | **Asset Derivatives** | **Asset Derivatives** | **Asset Derivatives** |
| EUR | &nbsp;&nbsp;&nbsp;&nbsp;2867391 | &nbsp;&nbsp;USD | &nbsp;&nbsp;&nbsp;&nbsp;3127325 | &nbsp;&nbsp;Brown Brothers Harriman | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$4967 |
| EUR | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;932098 | &nbsp;&nbsp;USD | &nbsp;&nbsp;&nbsp;&nbsp;1007744 | &nbsp;&nbsp;Citibank N.A. | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10466 |
| EUR | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;339 | &nbsp;&nbsp;USD | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;370 | &nbsp;&nbsp;Goldman Sachs International | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1 |
| USD | &nbsp;&nbsp;&nbsp;&nbsp;79390384 | &nbsp;&nbsp;GBP | &nbsp;&nbsp;&nbsp;&nbsp;63876917 | &nbsp;&nbsp;HSBC Bank | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;507604 |
| USD | &nbsp;&nbsp;&nbsp;&nbsp;5038518 | &nbsp;&nbsp;GBP | &nbsp;&nbsp;&nbsp;&nbsp;4053848 | &nbsp;&nbsp;Morgan Stanley Capital Services, Inc. | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;32347 |
|  |  |  |  |  |  | &nbsp;&nbsp;&nbsp;$555385 |
| **Liability Derivatives** | **Liability Derivatives** | **Liability Derivatives** | **Liability Derivatives** | **Liability Derivatives** | **Liability Derivatives** | **Liability Derivatives** |
| SEK | &nbsp;&nbsp;&nbsp;&nbsp;4579064 | &nbsp;&nbsp;USD | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;445365 | &nbsp;&nbsp;Deutsche Bank AG | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;$(5646) |
| USD | &nbsp;&nbsp;&nbsp;&nbsp;16028574 | &nbsp;&nbsp;CAD | &nbsp;&nbsp;&nbsp;&nbsp;21456970 | &nbsp;&nbsp;HSBC Bank | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(108055) |
| USD | &nbsp;&nbsp;&nbsp;&nbsp;3572881 | &nbsp;&nbsp;CAD | &nbsp;&nbsp;&nbsp;&nbsp;4821728 | &nbsp;&nbsp;State Street Bank Corp. | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(53280) |
| USD | &nbsp;&nbsp;362161941 | &nbsp;&nbsp;EUR | &nbsp;&nbsp;333525446 | &nbsp;&nbsp;Goldman Sachs International | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;(2176054) |
| USD | &nbsp;&nbsp;&nbsp;&nbsp;50401560 | &nbsp;&nbsp;EUR | &nbsp;&nbsp;&nbsp;&nbsp;46447914 | &nbsp;&nbsp;State Street Bank Corp. | &nbsp;&nbsp;4/21/2023 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(337416) |
|  |  |  |  |  |  | &nbsp;&nbsp;$(2680451) |

---

At January 31, 2023, the fund had cash collateral of $1,440,000 to cover any collateral or margin obligations for certain derivative contracts.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

------

### Supplemental Information
1/31/23 (unaudited)

The fund is an investment company and accordingly follows the investment company accounting and reporting guidance of the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 Financial Services - Investment Companies.

(1) Investment Valuations

Subject to its oversight, the fund's Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments to MFS as the fund's adviser, pursuant to the fund's valuation policy and procedures which have been adopted by the adviser and approved by the Board. Effective September 8, 2022, and in accordance with Rule 2a-5 under the Investment Company Act of 1940, the Board of Trustees designated the adviser as the "valuation designee" of the fund. If the adviser, as valuation designee, determines that reliable market quotations are not readily available for an investment, the investment is valued at fair value as determined in good faith by the adviser in accordance with the adviser's fair valuation policy and procedures.

Under the fund's valuation policy and procedures, equity securities, including restricted equity securities, are generally valued at the last sale or official closing price on their primary market or exchange as provided by a third-party pricing service. Equity securities, for which there were no sales reported that day, are generally valued at the last quoted daily bid quotation on their primary market or exchange as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Forward foreign currency exchange contracts are generally valued at the mean of bid and asked prices for the time period interpolated from rates provided by a third-party pricing service for proximate time periods. Open-end investment companies are generally valued at net asset value per share. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates provided by a third-party pricing service.

Under the fund's valuation policy and procedures, market quotations are not considered to be readily available for debt instruments, floating rate loans, and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services or otherwise determined by the adviser in accordance with the adviser's fair valuation policy and procedures. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. In determining values, third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, spreads and other market data. An investment may also be valued at fair value if the adviser determines that the investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halt of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund's net asset value may be deemed to have a material effect on the value of securities traded in foreign markets. Accordingly, the fund's foreign equity securities may often be valued at fair value. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund's net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.

Various inputs are used in determining the value of the fund's assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk).

------

Supplemental Information (unaudited) – continued

Level 3 includes significant unobservable inputs, which may include the adviser's own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments, such as forward foreign currency exchange contracts. The following is a summary of the levels used as of January 31, 2023 in valuing the fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Financial Instruments** | &nbsp;&nbsp;&nbsp;**Level 1** | &nbsp;&nbsp;&nbsp;**Level 2** | &nbsp;&nbsp;&nbsp;**Level 3** | &nbsp;&nbsp;&nbsp;**Total** |
| Equity Securities: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;United States | &nbsp;&nbsp;&nbsp;$2249892256 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;$2249892256 |
| &nbsp;&nbsp;&nbsp;Spain | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;196904716 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;196904716 |
| &nbsp;&nbsp;&nbsp;Germany | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;106389147 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;70672778 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;177061925 |
| &nbsp;&nbsp;&nbsp;Portugal | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;134208213 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;134208213 |
| &nbsp;&nbsp;&nbsp;United Kingdom | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;131280221 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;131280221 |
| &nbsp;&nbsp;&nbsp;Italy | &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;82816063 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;82816063 |
| &nbsp;&nbsp;&nbsp;France | &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;37547858 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;37547858 |
| &nbsp;&nbsp;&nbsp;Brazil | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;35135264 | &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;35135264 |
| &nbsp;&nbsp;&nbsp;Canada | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;32192288 | &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;32192288 |
| &nbsp;&nbsp;&nbsp;Other Countries | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;38494034 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;42695814 | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;81189848 |
| Mutual Funds | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;20646704 | &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;20646704 |
| Total | &nbsp;&nbsp;&nbsp;$2482749693 | &nbsp;&nbsp;&nbsp;$696125663 | &nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;$3178875356 |
| **Other Financial Instruments** |  |  |  |  |
| Forward Foreign Currency Exchange Contracts – Assets | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$555385 | &nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$555385 |
| Forward Foreign Currency Exchange Contracts – Liabilities | &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;(2680451) | &nbsp;&nbsp;&nbsp;&nbsp;— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2680451) |

---

For further information regarding security characteristics, see the Portfolio of Investments.

(2) Investments in Affiliated Issuers

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the following were affiliated issuers:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Affiliated Issuers** | &nbsp;&nbsp;**Beginning<br> Value** | &nbsp;&nbsp;**Purchases** | &nbsp;&nbsp;**Sales<br> Proceeds** | &nbsp;&nbsp;**Realized<br> Gain<br> (Loss)** | &nbsp;&nbsp;**Change in<br> Unrealized<br> Appreciation or<br> Depreciation** | &nbsp;&nbsp;**Ending<br> Value** |
| MFS Institutional Money Market Portfolio | &nbsp;&nbsp;$25673112 | &nbsp;&nbsp;$115898389 | &nbsp;&nbsp;$120932462 | &nbsp;&nbsp;$7342 | &nbsp;&nbsp;$323 | &nbsp;&nbsp;$20646704 |

---

---

| | | |
|:---|:---|:---|
| **Affiliated Issuers** | &nbsp;&nbsp;**Dividend<br> Income** | &nbsp;&nbsp;**Capital Gain<br> Distributions** |
| MFS Institutional Money Market Portfolio | &nbsp;&nbsp;$251291 | &nbsp;&nbsp;$— |

---

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** MFS Series Trust VI

- **b. Investment Company Act file number:** 811-06102

- **c. CIK number of Registrant:** 0000863032

- **d. LEI of Registrant:** 549300TNIHF98FLHSE74

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 111 Huntington Avenue

  - **City:** Boston

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 02199

  - **Telephone number:** 617-954-5000

**Item A.2. Information about the Series.**

- **a. Name of Series:** MFS Utilities Fund

- **b. EDGAR series identifier (if any):** S000002470

- **c. LEI of Series:** 7PN70WZSAN5180NLO003

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2023-10-31

- **b. Date as of which information is reported:** 2023-01-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $3187584256.65

**Total Liabilities:** $4631553.53

**Net Assets:** $3182952703.12

**Cash Not Reported:** $8004.60

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000006638 | 7.25%                | -1.26%               | -0.22%               |
| Class ID C000070410 | 7.34%                | -1.18%               | -0.18%               |
| Class ID C000006637 | 7.30%                | -1.31%               | -0.22%               |
| Class ID C000006635 | 7.34%                | -1.25%               | -0.18%               |
| Class ID C000006644 | 7.31%                | -1.21%               | -0.18%               |
| Class ID C000006636 | 7.33%                | -1.18%               | -0.18%               |
| Class ID C000006643 | 7.28%                | -1.24%               | -0.18%               |
| Class ID C000006641 | 7.28%                | -1.30%               | -0.22%               |
| Class ID C000006639 | 7.35%                | -1.21%               | -0.13%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $3166004.55              | $236801396.37                              |
| Month 2  | $29949226.98             | $-65359022.68                              |
| Month 3  | $7571150.98              | $-10065975.23                              |

### Schedule of Portfolio Investments

| Name                                        | Title                                             | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $-5645.32     | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| PG&E Corp.                                  | PG&E Corp.                                        | CUSIP: 69331C108<br>LEI: 8YQ2GSDWYZXO2EDN3511 | Long             | EC               | CORP              | US        |  12188452 | NS      | $193796386.80 | 6.09%             |  |  |  | No            |                  1 | On Loan: No      |
| RWE AG                                      | RWE AG                                            | CUSIP: N/A<br>LEI: 529900GB7KCA94ACC940       | Long             | EC               | CORP              | DE        |   2398544 | NS      | $106389147.13 | 3.34%             |  |  |  | No            |                  1 | On Loan: No      |
| MFS Institutional Money Market Portfolio    | MFS Institutional Money Market Portfolio, Class A | CUSIP: 55291X109<br>LEI: 5L2W638H85N8T1136O07 | Long             | STIV             | RF                | US        |  20518187 | NS      | $20520238.89  | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| SBA Communications Corp.                    | SBA Communications Corp.                          | CUSIP: 78410G104<br>LEI: 5299001HX8ZN8Y8QIT49 | Long             | EC               | CORP              | US        |    121141 | NS      | $36043081.73  | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| NextEra Energy, Inc.                        | NextEra Energy, Inc.                              | CUSIP: 65339F101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   4709596 | NS      | $351477149.48 | 11.04%            |  |  |  | No            |                  1 | On Loan: No      |
| Edison International                        | Edison International                              | CUSIP: 281020107<br>LEI: 549300I7ROF15MAEVP56 | Long             | EC               | CORP              | US        |   1559343 | NS      | $107438732.70 | 3.38%             |  |  |  | No            |                  1 | On Loan: No      |
| DTE Energy Co.                              | DTE Energy Co.                                    | CUSIP: 233331107<br>LEI: 549300IX8SD6XXD71I78 | Long             | EC               | CORP              | US        |   1025281 | NS      | $119311949.97 | 3.75%             |  |  |  | No            |                  1 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $507604.01    | 0.02%             |  |  |  | No            |                  2 | On Loan: No      |
| Atmos Energy Corp.                          | Atmos Energy Corp.                                | CUSIP: 049560105<br>LEI: QVLWEGTD2S8GJMO8D383 | Long             | EC               | CORP              | US        |    396597 | NS      | $46616011.38  | 1.46%             |  |  |  | No            |                  1 | On Loan: No      |
| ALLETE, Inc.                                | ALLETE, Inc.                                      | CUSIP: 018522300<br>LEI: 549300NNLSIMY6Z8OT86 | Long             | EC               | CORP              | US        |    479128 | NS      | $29638858.08  | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Enel SpA                                    | Enel SpA                                          | CUSIP: N/A<br>LEI: WOCMU6HCI0OJWNPRZS33       | Long             | EC               | CORP              | IT        |  14069969 | NS      | $82816063.51  | 2.60%             |  |  |  | No            |                  2 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $-108054.42   | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Iberdrola SA                                | Iberdrola SA                                      | CUSIP: N/A<br>LEI: 5QK37QC7NWOJ8D7WVQ45       | Long             | EC               | CORP              | ES        |   7558013 | NS      | $88382843.44  | 2.78%             |  |  |  | No            |                  2 | On Loan: No      |
| Southern Co. (The)                          | Southern Co. (The)                                | CUSIP: 842587107<br>LEI: 549300FC3G3YU2FBZD92 | Long             | EC               | CORP              | US        |   2139142 | NS      | $144777130.56 | 4.55%             |  |  |  | No            |                  1 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $10465.98     | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| EDP - Energias de Portugal SA               | EDP - Energias de Portugal SA                     | CUSIP: N/A<br>LEI: 529900CLC3WDMGI9VH80       | Long             | EC               | CORP              | PT        |   8226319 | NS      | $40885429.55  | 1.28%             |  |  |  | No            |                  2 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $4967.48      | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| NextEra Energy, Inc.                        | NextEra Energy, Inc.                              | CUSIP: 65339F770<br>LEI: N/A                  | Long             | EP               | CORP              | US        |    175500 | NS      | $8773245.00   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| EDP Renovaveis SA                           | EDP Renovaveis SA                                 | CUSIP: N/A<br>LEI: 529900MUFAH07Q1TAX06       | Long             | EC               | CORP              | ES        |   4284383 | NS      | $93322782.56  | 2.93%             |  |  |  | No            |                  2 | On Loan: No      |
| Xcel Energy, Inc.                           | Xcel Energy, Inc.                                 | CUSIP: 98389B100<br>LEI: LGJNMI9GH8XIDG5RCM61 | Long             | EC               | CORP              | US        |    586186 | NS      | $40312011.22  | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Public Service Enterprise Group, Inc.       | Public Service Enterprise Group, Inc.             | CUSIP: 744573106<br>LEI: PUSS41EMO3E6XXNV3U28 | Long             | EC               | CORP              | US        |    746785 | NS      | $46248395.05  | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $-337416.36   | -0.01%            |  |  |  | No            |                  2 | On Loan: No      |
| PPL Corp.                                   | PPL Corp.                                         | CUSIP: 69351T106<br>LEI: 9N3UAJSNOUXFKQLF3V18 | Long             | EC               | CORP              | US        |   2914682 | NS      | $86274587.20  | 2.71%             |  |  |  | No            |                  1 | On Loan: No      |
| China Resources Gas Group Ltd.              | China Resources Gas Group Ltd.                    | CUSIP: N/A<br>LEI: 529900A0E1J5JSOKEK83       | Long             | EC               | CORP              | BM        |   4938300 | NS      | $20751673.54  | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Constellation Energy Corp.                  | Constellation Energy Corp.                        | CUSIP: 21037T109<br>LEI: 549300F8Y20RYGNGV346 | Long             | EC               | CORP              | US        |    900043 | NS      | $76827670.48  | 2.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Energisa SA                                 | Energisa SA                                       | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | BR        |   2012500 | NS      | $16750019.70  | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| National Grid plc                           | National Grid plc                                 | CUSIP: N/A<br>LEI: 8R95QZMKZLJX5Q2XR704       | Long             | EC               | CORP              | GB        |   4384007 | NS      | $55763910.68  | 1.75%             |  |  |  | No            |                  2 | On Loan: No      |
| Exelon Corp.                                | Exelon Corp.                                      | CUSIP: 30161N101<br>LEI: 3SOUA6IRML7435B56G12 | Long             | EC               | CORP              | US        |   1138894 | NS      | $48049937.86  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $-53280.02    | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| American Electric Power Co., Inc.           | American Electric Power Co., Inc.                 | CUSIP: 025537101<br>LEI: 1B4S6S7G0TW5EE83BO58 | Long             | EC               | CORP              | US        |   1159829 | NS      | $108977532.84 | 3.42%             |  |  |  | No            |                  1 | On Loan: No      |
| E.ON SE                                     | E.ON SE                                           | CUSIP: N/A<br>LEI: Q9MAIUP40P25UFBFG033       | Long             | EC               | CORP              | DE        |   6504304 | NS      | $70672777.58  | 2.22%             |  |  |  | No            |                  2 | On Loan: No      |
| Veolia Environnement SA                     | Veolia Environnement SA                           | CUSIP: N/A<br>LEI: 969500LENY69X51OOT31       | Long             | EC               | CORP              | FR        |   1265304 | NS      | $37547857.66  | 1.18%             |  |  |  | No            |                  2 | On Loan: No      |
| Ameren Corp.                                | Ameren Corp.                                      | CUSIP: 023608102<br>LEI: XRZQ5S7HYJFPHJ78L959 | Long             | EC               | CORP              | US        |   1080857 | NS      | $93894047.59  | 2.95%             |  |  |  | No            |                  1 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $32346.44     | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Orsted A/S                                  | Orsted A/S                                        | CUSIP: N/A<br>LEI: W9NG6WMZIYEU8VEDOG48       | Long             | EC               | CORP              | DK        |    187564 | NS      | $16718468.23  | 0.53%             |  |  |  | No            |                  2 | On Loan: No      |
| Rogers Communications, Inc.                 | Rogers Communications, Inc., Class B              | CUSIP: 775109200<br>LEI: 54930030NVF3Y2OL0A78 | Long             | EC               | CORP              | CA        |    662134 | NS      | $32192287.75  | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Evergy, Inc.                                | Evergy, Inc.                                      | CUSIP: 30034W106<br>LEI: 549300PGTHDQY6PSUI61 | Long             | EC               | CORP              | US        |   1054093 | NS      | $66038926.45  | 2.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Equatorial Energia SA                       | Equatorial Energia SA                             | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | BR        |   3330800 | NS      | $18385244.37  | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Pinnacle West Capital Corp.                 | Pinnacle West Capital Corp.                       | CUSIP: 723484101<br>LEI: TWSEY0NEDUDCKS27AH81 | Long             | EC               | CORP              | US        |    564756 | NS      | $42102559.80  | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Alliant Energy Corp.                        | Alliant Energy Corp.                              | CUSIP: 018802108<br>LEI: 5493009ML300G373MZ12 | Long             | EC               | CORP              | US        |   1384887 | NS      | $74825444.61  | 2.35%             |  |  |  | No            |                  1 | On Loan: No      |
| CLP Holdings Ltd.                           | CLP Holdings Ltd.                                 | CUSIP: N/A<br>LEI: 25490002BUTSMP94GO68       | Long             | EC               | CORP              | HK        |   3491000 | NS      | $25977346.12  | 0.82%             |  |  |  | No            |                  2 | On Loan: No      |
| Cellnex Telecom SA                          | Cellnex Telecom SA                                | CUSIP: N/A<br>LEI: 5493008T4YG3AQUI7P67       | Long             | EC               | CORP              | ES        |   2765477 | NS      | $108521872.78 | 3.41%             |  |  |  | No            |                  2 | On Loan: No      |
| Sempra Energy                               | Sempra Energy                                     | CUSIP: 816851109<br>LEI: PBBKGKLRK5S5C0Y4T545 | Long             | EC               | CORP              | US        |    961829 | NS      | $154210043.57 | 4.84%             |  |  |  | No            |                  1 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $0.85         | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Portland General Electric Co.               | Portland General Electric Co.                     | CUSIP: 736508847<br>LEI: GJOUP9M7C39GLSK9R870 | Long             | EC               | CORP              | US        |    779717 | NS      | $37098934.86  | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Dominion Energy, Inc.                       | Dominion Energy, Inc.                             | CUSIP: 25746U109<br>LEI: ILUL7B6Z54MRYCF6H308 | Long             | EC               | CORP              | US        |   2779410 | NS      | $176881652.40 | 5.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Entergy Corp.                               | Entergy Corp.                                     | CUSIP: 29364G103<br>LEI: 4XM3TW50JULSLG8BNC79 | Long             | EC               | CORP              | US        |    420648 | NS      | $45547765.44  | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| AES Corp. (The)                             | AES Corp. (The)                                   | CUSIP: 00130H105<br>LEI: 2NUNNB7D43COUIRE5295 | Long             | EC               | CORP              | US        |   2482603 | NS      | $68048148.23  | 2.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Hellenic Telecommunications Organization SA | Hellenic Telecommunications Organization SA       | CUSIP: N/A<br>LEI: ELPUFM0XZRZO4LFXW404       | Long             | EC               | CORP              | GR        |   1128630 | NS      | $17754546.99  | 0.56%             |  |  |  | No            |                  1 | On Loan: No      |
| CenterPoint Energy, Inc.                    | CenterPoint Energy, Inc.                          | CUSIP: 15189T107<br>LEI: 21TPXMRRHFKOBHDC8J74 | Long             | EC               | CORP              | US        |   1549869 | NS      | $46682054.28  | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| SSE plc                                     | SSE plc                                           | CUSIP: N/A<br>LEI: 549300KI75VYLLMSK856       | Long             | EC               | CORP              | GB        |   3537544 | NS      | $75516309.69  | 2.37%             |  |  |  | No            |                  2 | On Loan: No      |
| N/A                                         | Forward Foreign Currency Contract                 | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | N/A       |         1 | NC      | $-2176054.39  | -0.07%            |  |  |  | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2023-03-02

**Name of Applicant:** MFS Series Trust VI

**Signature:** Kasey Phillips

**Name of Signer:** Kasey Phillips

**Title:** Assistant Treasurer