# EDGAR Filing Document

**Accession Number:** 0000863032
**File Stem:** 0002071691-25-009748
**Filing Date:** 2025-12
**Character Count:** 22598
**Document Hash:** 1dcf9c5352e89cebf8cd8e64e6f82831
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071691-25-009748.hdr.sgml**: 20251223

**ACCESSION NUMBER**: 0002071691-25-009748

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251031

**FILED AS OF DATE**: 20251223

**DATE AS OF CHANGE**: 20251223

**PERIOD START**: 20251031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS SERIES TRUST VI
- **CENTRAL INDEX KEY:** 0000863032

**ORGANIZATION NAME:**
- **EIN:** 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:** 251597554

**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           |

## 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:** 2025-10-31

- **b. Date as of which information is reported:** 2025-10-31

**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:** $2685699685.87

**Total Liabilities:** $8695426.57

**Net Assets:** $2677004259.30

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000006638 | -1.10%               | 3.88%                | 2.91%                |
| Class ID C000070410 | -1.01%               | 3.95%                | 3.04%                |
| Class ID C000006637 | -1.10%               | 3.84%                | 2.94%                |
| Class ID C000006635 | -1.06%               | 3.97%                | 2.97%                |
| Class ID C000006644 | -1.06%               | 3.93%                | 2.98%                |
| Class ID C000006636 | -1.01%               | 3.94%                | 3.01%                |
| Class ID C000006643 | -1.06%               | 3.91%                | 2.94%                |
| Class ID C000006641 | -1.11%               | 3.87%                | 2.93%                |
| Class ID C000006639 | -1.01%               | 3.97%                | 3.00%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $11636256.02             | $-35477131.38                              |
| Month 2  | $3962831.38              | $90883202.78                               |
| Month 3  | $19907621.86             | $50962290.08                               |

**Designated Index Information**

- **Index Name:** S&P 500

- **Index Identifier:** SPX

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| OGE Energy Corp.                         | OGE Energy Corp.                                           | CUSIP: 670837103<br>LEI: CE5OG6JPOZMDSA0LAQ19 | Long             | EC               | CORP              | US        |    706058 | NS      | $31165400.12  | 1.16%             |  |  |  | No            |                  1 | On Loan: No      |
| PG&E Corp.                               | PG&E Corp.                                                 | CUSIP: 69331C108<br>LEI: 8YQ2GSDWYZXO2EDN3511 | Long             | EC               | CORP              | US        |   9495162 | NS      | $151542785.52 | 5.66%             |  |  |  | No            |                  1 | On Loan: No      |
| RWE AG                                   | RWE AG                                                     | CUSIP: N/A<br>LEI: 529900GB7KCA94ACC940       | Long             | EC               | CORP              | DE        |   1985814 | NS      | $97646543.37  | 3.65%             |  |  |  | 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        |  21823344 | NS      | $21827708.34  | 0.82%             |  |  |  | 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      | $157736.57    | 0.01%             |  |  |  | No            |                  2 | On Loan: No      |
| NextEra Energy, Inc.                     | NextEra Energy, Inc.                                       | CUSIP: 65339F101<br>LEI: 254900RHL9MEUS5NKX63 | Long             | EC               | CORP              | US        |   3836295 | NS      | $312274413.00 | 11.67%            |  |  |  | No            |                  1 | On Loan: No      |
| Edison International                     | Edison International                                       | CUSIP: 281020107<br>LEI: 549300I7ROF15MAEVP56 | Long             | EC               | CORP              | US        |   1393263 | NS      | $77158904.94  | 2.88%             |  |  |  | No            |                  1 | On Loan: No      |
| DTE Energy Co.                           | DTE Energy Co.                                             | CUSIP: 233331107<br>LEI: 549300IX8SD6XXD71I78 | Long             | EC               | CORP              | US        |    762967 | NS      | $103412547.18 | 3.86%             |  |  |  | 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      | $834094.66    | 0.03%             |  |  |  | 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      | $-8737.46     | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Atmos Energy Corp.                       | Atmos Energy Corp.                                         | CUSIP: 049560105<br>LEI: QVLWEGTD2S8GJMO8D383 | Long             | EC               | CORP              | US        |    268148 | NS      | $46046374.56  | 1.72%             |  |  |  | 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      | $1233317.49   | 0.05%             |  |  |  | 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      | $-393091.86   | -0.01%            |  |  |  | No            |                  2 | On Loan: No      |
| Enel SpA                                 | Enel SpA                                                   | CUSIP: N/A<br>LEI: WOCMU6HCI0OJWNPRZS33       | Long             | EC               | CORP              | IT        |   2742044 | NS      | $27724932.49  | 1.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Southern Co. (The)                       | Southern Co. (The)                                         | CUSIP: 842587107<br>LEI: 549300FC3G3YU2FBZD92 | Long             | EC               | CORP              | US        |   1082045 | NS      | $101755511.80 | 3.80%             |  |  |  | No            |                  1 | On Loan: No      |
| JPMORGAN US GOVERNMENT MONEY MKT FD      | JPMORGAN US GOVERNMENT MONEY MARKET FUND OPEN-END FUND USD | CUSIP: 4812C2270<br>LEI: 549300NQ5E5B7ZV4T516 | Long             | STIV             | RF                | US        |   6944850 | NS      | $6944850.00   | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| EDP SA                                   | EDP SA                                                     | CUSIP: N/A<br>LEI: 529900CLC3WDMGI9VH80       | Long             | EC               | CORP              | PT        |   4060835 | NS      | $20173909.52  | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Generac Holdings, Inc.                   | Generac Holdings, Inc.                                     | CUSIP: 368736104<br>LEI: 529900S2H2AHJHSFFI84 | Long             | EC               | CORP              | US        |     50658 | NS      | $8511557.16   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| EDP Renovaveis SA                        | EDP Renovaveis SA                                          | CUSIP: N/A<br>LEI: 529900MUFAH07Q1TAX06       | Long             | EC               | CORP              | ES        |   3503657 | NS      | $51208056.28  | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Xcel Energy, Inc.                        | Xcel Energy, Inc.                                          | CUSIP: 98389B100<br>LEI: LGJNMI9GH8XIDG5RCM61 | Long             | EC               | CORP              | US        |   1827817 | NS      | $148363905.89 | 5.54%             |  |  |  | No            |                  1 | On Loan: No      |
| United Utilities Group plc               | United Utilities Group plc                                 | CUSIP: N/A<br>LEI: 2138002IEYQAOC88ZJ59       | Long             | EC               | CORP              | GB        |   1813602 | NS      | $28602260.00  | 1.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Public Service Enterprise Group, Inc.    | Public Service Enterprise Group, Inc.                      | CUSIP: 744573106<br>LEI: PUSS41EMO3E6XXNV3U28 | Long             | EC               | CORP              | US        |   1089629 | NS      | $87780512.24  | 3.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Israeli Shekel                           | Israeli Shekel                                             | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | IL        |     31028 | OU      | $9522.23      | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| PPL Corp.                                | PPL Corp.                                                  | CUSIP: 69351T106<br>LEI: 9N3UAJSNOUXFKQLF3V18 | Long             | EC               | CORP              | US        |   2475025 | NS      | $90387913.00  | 3.38%             |  |  |  | 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      | $-40254.50    | -0.00%            |  |  |  | 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      | $167717.60    | 0.01%             |  |  |  | No            |                  2 | On Loan: No      |
| NiSource, Inc.                           | NiSource, Inc.                                             | CUSIP: 65473P105<br>LEI: 549300D8GOWWH0SJB189 | Long             | EC               | CORP              | US        |   1219905 | NS      | $51370199.55  | 1.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Constellation Energy Corp.               | Constellation Energy Corp.                                 | CUSIP: 21037T109<br>LEI: 549300F8Y20RYGNGV346 | Long             | EC               | CORP              | US        |    629928 | NS      | $237482856.00 | 8.87%             |  |  |  | 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      | $-2369.09     | -0.00%            |  |  |  | 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      | $-1495.17     | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| National Grid plc                        | National Grid plc                                          | CUSIP: N/A<br>LEI: 8R95QZMKZLJX5Q2XR704       | Long             | EC               | CORP              | GB        |   2136333 | NS      | $31994107.53  | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| American Electric Power Co., Inc.        | American Electric Power Co., Inc.                          | CUSIP: 025537101<br>LEI: 1B4S6S7G0TW5EE83BO58 | Long             | EC               | CORP              | US        |    833344 | NS      | $100217949.44 | 3.74%             |  |  |  | No            |                  1 | On Loan: No      |
| E.ON SE                                  | E.ON SE                                                    | CUSIP: N/A<br>LEI: Q9MAIUP40P25UFBFG033       | Long             | EC               | CORP              | DE        |   1078751 | NS      | $20068836.58  | 0.75%             |  |  |  | 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      | $-3964.23     | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Vistra Corp.                             | Vistra Corp.                                               | CUSIP: 92840M102<br>LEI: 549300KP43CPCUJOOG15 | Long             | EC               | CORP              | US        |    657650 | NS      | $123835495.00 | 4.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Veolia Environnement SA                  | Veolia Environnement SA                                    | CUSIP: N/A<br>LEI: 969500LENY69X51OOT31       | Long             | EC               | CORP              | FR        |    366648 | NS      | $12107971.82  | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Ameren Corp.                             | Ameren Corp.                                               | CUSIP: 023608102<br>LEI: XRZQ5S7HYJFPHJ78L959 | Long             | EC               | CORP              | US        |    957522 | NS      | $97686394.44  | 3.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Spire, Inc.                              | Spire, Inc.                                                | CUSIP: 84857L101<br>LEI: 549300NXSY15DRY2R511 | Long             | EC               | CORP              | US        |     79988 | NS      | $6910963.20   | 0.26%             |  |  |  | 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      | $-14871.65    | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Pinnacle West Capital Corp.              | Pinnacle West Capital Corp.                                | CUSIP: 723484101<br>LEI: TWSEY0NEDUDCKS27AH81 | Long             | EC               | CORP              | US        |    654412 | NS      | $57928550.24  | 2.16%             |  |  |  | No            |                  1 | On Loan: —       |
| Alliant Energy Corp.                     | Alliant Energy Corp.                                       | CUSIP: 018802108<br>LEI: 5493009ML300G373MZ12 | Long             | EC               | CORP              | US        |   1104515 | NS      | $73803692.30  | 2.76%             |  |  |  | No            |                  1 | On Loan: No      |
| WEC Energy Group, Inc.                   | WEC Energy Group, Inc.                                     | CUSIP: 92939U106<br>LEI: 549300IGLYTZUK3PVP70 | Long             | EC               | CORP              | US        |    252105 | NS      | $28167691.65  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Sempra                                   | Sempra                                                     | CUSIP: 816851109<br>LEI: PBBKGKLRK5S5C0Y4T545 | Long             | EC               | CORP              | US        |   1455760 | NS      | $133842574.40 | 5.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Duke Energy Corp.                        | Duke Energy Corp.                                          | CUSIP: 26441C204<br>LEI: I1BZKREC126H0VB1BL91 | Long             | EC               | CORP              | US        |    168471 | NS      | $20940945.30  | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Portland General Electric Co.            | Portland General Electric Co.                              | CUSIP: 736508847<br>LEI: GJOUP9M7C39GLSK9R870 | Long             | EC               | CORP              | US        |    840358 | NS      | $38387553.44  | 1.43%             |  |  |  | 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      | $-11274.02    | -0.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Dominion Energy, Inc.                    | Dominion Energy, Inc.                                      | CUSIP: 25746U109<br>LEI: ILUL7B6Z54MRYCF6H308 | Long             | EC               | CORP              | US        |   1667045 | NS      | $97838871.05  | 3.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Entergy Corp.                            | Entergy Corp.                                              | CUSIP: 29364G103<br>LEI: 4XM3TW50JULSLG8BNC79 | Long             | EC               | CORP              | US        |    571868 | NS      | $54950796.12  | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| British Pound                            | British Pound                                              | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | GB        |        27 | OU      | $35.48        | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| CenterPoint Energy, Inc.                 | CenterPoint Energy, Inc.                                   | CUSIP: 15189T107<br>LEI: 21TPXMRRHFKOBHDC8J74 | Long             | EC               | CORP              | US        |    506448 | NS      | $19366571.52  | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| SSE plc                                  | SSE plc                                                    | CUSIP: N/A<br>LEI: 549300KI75VYLLMSK856       | Long             | EC               | CORP              | GB        |   2342515 | NS      | $58962255.03  | 2.20%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-12-01

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

**Signature:** James Byrne

**Name of Signer:** James Byrne

**Title:** Assistant Treasurer