# EDGAR Filing Document

**Accession Number:** 0000863032
**File Stem:** 0002071691-26-015581
**Filing Date:** 2026-6
**Character Count:** 20508
**Document Hash:** 2344aec1a44e07381c95e617b898f88d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071691-26-015581.hdr.sgml**: 20260629

**ACCESSION NUMBER**: 0002071691-26-015581

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260430

**FILED AS OF DATE**: 20260629

**DATE AS OF CHANGE**: 20260629

**PERIOD START**: 20261031

**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:** 261132310

**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:** 2026-10-31

- **b. Date as of which information is reported:** 2026-04-30

**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:** $2819508024.22

**Total Liabilities:** $1408859.21

**Net Assets:** $2818099165.01

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000006635 | 10.50%               | -3.40%               | 2.98%                |
| Class ID C000006636 | 10.53%               | -3.38%               | 2.98%                |
| Class ID C000006637 | 10.49%               | -3.49%               | 2.91%                |
| Class ID C000006638 | 10.48%               | -3.47%               | 2.92%                |
| Class ID C000006639 | 10.52%               | -3.36%               | 3.00%                |
| Class ID C000006641 | 10.47%               | -3.45%               | 2.90%                |
| Class ID C000006643 | 10.50%               | -3.43%               | 2.95%                |
| Class ID C000006644 | 10.51%               | -3.40%               | 2.98%                |
| Class ID C000070410 | 10.51%               | -3.38%               | 3.04%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $33221227.58             | $232562633.31                              |
| Month 2  | $5497.79                 | $-105949200.03                             |
| Month 3  | $35163327.55             | $49608612.59                               |

**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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Alliant Energy Corp.                     | Alliant Energy Corp.                              | CUSIP: 018802108<br>LEI: 5493009ML300G373MZ12 | Long             | EC               | CORP              | US        |   1058345 | NS      | $77714273.35  | 2.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Ameren Corp.                             | Ameren Corp.                                      | CUSIP: 023608102<br>LEI: XRZQ5S7HYJFPHJ78L959 | Long             | EC               | CORP              | US        |    950410 | NS      | $108014096.50 | 3.83%             |  |  |  | No            |                  1 | On Loan: No      |
| American Electric Power Co., Inc.        | American Electric Power Co., Inc.                 | CUSIP: 025537101<br>LEI: 1B4S6S7G0TW5EE83BO58 | Long             | EC               | CORP              | US        |   1001960 | NS      | $137378735.60 | 4.87%             |  |  |  | No            |                  1 | On Loan: No      |
| American Water Works Co., Inc.           | American Water Works Co., Inc.                    | CUSIP: 030420103<br>LEI: 549300DXHIJQMD5WFW18 | Long             | EC               | CORP              | US        |    284910 | NS      | $36588142.20  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Atmos Energy Corp.                       | Atmos Energy Corp.                                | CUSIP: 049560105<br>LEI: QVLWEGTD2S8GJMO8D383 | Long             | EC               | CORP              | US        |    266157 | NS      | $50564506.86  | 1.79%             |  |  |  | No            |                  1 | On Loan: No      |
| SSE plc                                  | SSE plc                                           | CUSIP: N/A<br>LEI: 549300KI75VYLLMSK856       | Long             | EC               | CORP              | GB        |   1708364 | NS      | $61394173.23  | 2.18%             |  |  |  | No            |                  1 | On Loan: No      |
| CenterPoint Energy, Inc.                 | CenterPoint Energy, Inc.                          | CUSIP: 15189T107<br>LEI: 21TPXMRRHFKOBHDC8J74 | Long             | EC               | CORP              | US        |    502686 | NS      | $21942243.90  | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Constellation Energy Corp.               | Constellation Energy Corp.                        | CUSIP: 21037T109<br>LEI: 549300F8Y20RYGNGV346 | Long             | EC               | CORP              | US        |    629928 | NS      | $197167464.00 | 7.00%             |  |  |  | No            |                  1 | On Loan: No      |
| DTE Energy Co.                           | DTE Energy Co.                                    | CUSIP: 233331107<br>LEI: 549300IX8SD6XXD71I78 | Long             | EC               | CORP              | US        |    757300 | NS      | $114874837.00 | 4.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Dominion Energy, Inc.                    | Dominion Energy, Inc.                             | CUSIP: 25746U109<br>LEI: ILUL7B6Z54MRYCF6H308 | Long             | EC               | CORP              | US        |   1654663 | NS      | $106725763.50 | 3.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Edison International                     | Edison International                              | CUSIP: 281020107<br>LEI: 549300I7ROF15MAEVP56 | Long             | EC               | CORP              | US        |   1382915 | NS      | $96098763.35  | 3.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Entergy Corp.                            | Entergy Corp.                                     | CUSIP: 29364G103<br>LEI: 4XM3TW50JULSLG8BNC79 | Long             | EC               | CORP              | US        |    567620 | NS      | $66928074.20  | 2.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Eversource Energy                        | Eversource Energy                                 | CUSIP: 30040W108<br>LEI: SJ7XXD41SQU3ZNWUJ746 | Long             | EC               | CORP              | US        |    500999 | NS      | $35420629.30  | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Veolia Environnement SA                  | Veolia Environnement SA                           | CUSIP: N/A<br>LEI: 969500LENY69X51OOT31       | Long             | EC               | CORP              | FR        |    363925 | NS      | $15394140.56  | 0.55%             |  |  |  | No            |                  2 | On Loan: No      |
| EDP SA                                   | EDP SA                                            | CUSIP: N/A<br>LEI: 529900CLC3WDMGI9VH80       | Long             | EC               | CORP              | PT        |   5118015 | NS      | $27889378.80  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| RWE AG                                   | RWE AG                                            | CUSIP: N/A<br>LEI: 529900GB7KCA94ACC940       | Long             | EC               | CORP              | DE        |    818790 | NS      | $59561099.29  | 2.11%             |  |  |  | No            |                  1 | On Loan: No      |
| E.ON SE                                  | E.ON SE                                           | CUSIP: N/A<br>LEI: Q9MAIUP40P25UFBFG033       | Long             | EC               | CORP              | DE        |    928092 | NS      | $20576030.26  | 0.73%             |  |  |  | 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      | $16966.75     | 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      | $5293.73      | 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      | $-7051.30     | -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      | $-136839.61   | -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      | $775706.39    | 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      | $-126031.64   | -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      | $1751.13      | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| MFS Institutional Money Market Portfolio | MFS Institutional Money Market Portfolio, Class A | CUSIP: 55291X109<br>LEI: 5L2W638H85N8T1136O07 | Long             | STIV             | RF                | US        |  21707994 | NS      | $21710164.91  | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| NextEra Energy, Inc.                     | NextEra Energy, Inc.                              | CUSIP: 65339F101<br>LEI: 254900RHL9MEUS5NKX63 | Long             | EC               | CORP              | US        |   3836295 | NS      | $375496554.60 | 13.32%            |  |  |  | No            |                  1 | On Loan: No      |
| NiSource, Inc.                           | NiSource, Inc.                                    | CUSIP: 65473P105<br>LEI: 549300D8GOWWH0SJB189 | Long             | EC               | CORP              | US        |   1210844 | NS      | $58459548.32  | 2.07%             |  |  |  | No            |                  1 | On Loan: No      |
| OGE Energy Corp.                         | OGE Energy Corp.                                  | CUSIP: 670837103<br>LEI: CE5OG6JPOZMDSA0LAQ19 | Long             | EC               | CORP              | US        |    889312 | NS      | $43398425.60  | 1.54%             |  |  |  | No            |                  1 | On Loan: No      |
| PG&E Corp.                               | PG&E Corp.                                        | CUSIP: 69331C108<br>LEI: 8YQ2GSDWYZXO2EDN3511 | Long             | EC               | CORP              | US        |   9476784 | NS      | $157504150.08 | 5.59%             |  |  |  | No            |                  1 | On Loan: No      |
| PPL Corp.                                | PPL Corp.                                         | CUSIP: 69351T106<br>LEI: 9N3UAJSNOUXFKQLF3V18 | Long             | EC               | CORP              | US        |   1756429 | NS      | $65760701.76  | 2.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Enel SpA                                 | Enel SpA                                          | CUSIP: N/A<br>LEI: WOCMU6HCI0OJWNPRZS33       | Long             | EC               | CORP              | IT        |   1833856 | NS      | $21396191.91  | 0.76%             |  |  |  | No            |                  2 | On Loan: No      |
| Pinnacle West Capital Corp.              | Pinnacle West Capital Corp.                       | CUSIP: 723484101<br>LEI: TWSEY0NEDUDCKS27AH81 | Long             | EC               | CORP              | US        |    649551 | NS      | $67371429.72  | 2.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Public Service Enterprise Group, Inc.    | Public Service Enterprise Group, Inc.             | CUSIP: 744573106<br>LEI: PUSS41EMO3E6XXNV3U28 | Long             | EC               | CORP              | US        |   1081536 | NS      | $88318229.76  | 3.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Sempra                                   | Sempra                                            | CUSIP: 816851109<br>LEI: PBBKGKLRK5S5C0Y4T545 | Long             | EC               | CORP              | US        |   1444948 | NS      | $137443453.76 | 4.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Southern Co. (The)                       | Southern Co. (The)                                | CUSIP: 842587107<br>LEI: 549300FC3G3YU2FBZD92 | Long             | EC               | CORP              | US        |   1074008 | NS      | $103856573.60 | 3.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Spire, Inc.                              | Spire, Inc.                                       | CUSIP: 84857L101<br>LEI: 549300NXSY15DRY2R511 | Long             | EC               | CORP              | US        |    152293 | NS      | $13886075.74  | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Vistra Corp.                             | Vistra Corp.                                      | CUSIP: 92840M102<br>LEI: 549300KP43CPCUJOOG15 | Long             | EC               | CORP              | US        |    652765 | NS      | $103032427.60 | 3.66%             |  |  |  | No            |                  1 | On Loan: No      |
| WEC Energy Group, Inc.                   | WEC Energy Group, Inc.                            | CUSIP: 92939U106<br>LEI: 549300IGLYTZUK3PVP70 | Long             | EC               | CORP              | US        |    365638 | NS      | $43123345.72  | 1.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Xcel Energy, Inc.                        | Xcel Energy, Inc.                                 | CUSIP: 98389B100<br>LEI: LGJNMI9GH8XIDG5RCM61 | Long             | EC               | CORP              | US        |   1824279 | NS      | $151323943.05 | 5.37%             |  |  |  | No            |                  1 | On Loan: No      |
| EDP Renovaveis SA                        | EDP Renovaveis SA                                 | CUSIP: N/A<br>LEI: 529900MUFAH07Q1TAX06       | Long             | EC               | CORP              | ES        |   2552753 | NS      | $42483826.74  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| United Utilities Group plc               | United Utilities Group plc                        | CUSIP: N/A<br>LEI: 2138002IEYQAOC88ZJ59       | Long             | EC               | CORP              | GB        |   1957374 | NS      | $38880802.83  | 1.38%             |  |  |  | No            |                  2 | On Loan: No      |
| National Grid plc                        | National Grid plc                                 | CUSIP: N/A<br>LEI: 8R95QZMKZLJX5Q2XR704       | Long             | EC               | CORP              | GB        |   1971881 | NS      | $35274081.39  | 1.25%             |  |  |  | No            |                  2 | On Loan: No      |
| Orsted A/S                               | Orsted A/S                                        | CUSIP: N/A<br>LEI: W9NG6WMZIYEU8VEDOG48       | Long             | EC               | CORP              | DK        |    428443 | NS      | $11462783.98  | 0.41%             |  |  |  | No            |                  1 | On Loan: No      |
| EURO                                     | EURO                                              | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | XX        |         6 | OU      | $7.08         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| British Pound                            | British Pound                                     | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | GB        |        60 | OU      | $82.03        | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Israeli Shekel                           | Israeli Shekel                                    | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | IL        |     31028 | OU      | $10525.90     | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-06-01

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

**Signature:** James Byrne

**Name of Signer:** James Byrne

**Title:** Assistant Treasurer