# EDGAR Filing Document

**Accession Number:** 0000063090
**File Stem:** 0002071691-26-000406
**Filing Date:** 2026-1
**Character Count:** 24362
**Document Hash:** 0364e91741ae0d31d8207ad3a37c7140
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071691-26-000406.hdr.sgml**: 20260123

**ACCESSION NUMBER**: 0002071691-26-000406

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251130

**FILED AS OF DATE**: 20260123

**DATE AS OF CHANGE**: 20260123

**PERIOD START**: 20251130

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASSACHUSETTS INVESTORS GROWTH STOCK FUND
- **CENTRAL INDEX KEY:** 0000063090

**ORGANIZATION NAME:**
- **EIN:** 041885327
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-00859
- **FILM NUMBER:** 26554586

**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:** MASSACHUSETTS INVESTORS GROWTH STOCK FUND INC
- **DATE OF NAME CHANGE:** 19920414

## Series and Classes Contracts Data

### Massachusetts Investors Growth Stock Fund (Series ID: S000000695)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000002023 | A            | MIGFX           |
| C000002024 | R3           | MIGHX           |
| C000002025 | R4           | MIGKX           |
| C000002029 | B            | MIGBX           |
| C000002030 | C            | MIGDX           |
| C000002031 | I            | MGTIX           |
| C000002034 | R1           | MIGMX           |
| C000002036 | R2           | MIRGX           |
| C000112291 | R6           | MIGNX           |

## 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 Massachusetts Investors Growth Stock Fund

- **b. Investment Company Act file number:** 811-00859

- **c. CIK number of Registrant:** 0000063090

- **d. LEI of Registrant:** IYOONE8CYRIVGIKANH85

- **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 Massachusetts Investors Growth Stock Fund

- **b. EDGAR series identifier (if any):** S000000695

- **c. LEI of Series:** IYOONE8CYRIVGIKANH85

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

- **a. Date of fiscal year-end:** 2025-11-30

- **b. Date as of which information is reported:** 2025-11-30

**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:** $11464757404.42

**Total Liabilities:** $129929283.52

**Net Assets:** $11334828120.90

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000002023 | 1.82%                | 2.33%                | -1.08%               |
| Class ID C000002024 | 1.80%                | 2.33%                | -1.07%               |
| Class ID C000002025 | 1.84%                | 2.34%                | -1.06%               |
| Class ID C000002029 | 1.73%                | 2.25%                | -1.12%               |
| Class ID C000002030 | 1.75%                | 2.28%                | -1.13%               |
| Class ID C000002031 | 1.84%                | 2.33%                | -1.05%               |
| Class ID C000002034 | 1.73%                | 2.28%                | -1.13%               |
| Class ID C000002036 | 1.79%                | 2.29%                | -1.08%               |
| Class ID C000112291 | 1.83%                | 2.34%                | -1.02%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $81759875.69             | $129455168.69                              |
| Month 2  | $63890211.68             | $213629181.20                              |
| Month 3  | $220576028.54            | $-361342574.90                             |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Agilent Technologies, Inc.                  | Agilent Technologies, Inc.                                 | CUSIP: 00846U101<br>LEI: QUIX8Y7A2WP0XRMW7G29 | Long             | EC               | CORP              | US        |   1670714 | NS      | $256454599.00  | 2.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet, Inc.                              | Alphabet, Inc., Class A                                    | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |   1012097 | NS      | $324053217.46  | 2.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com, Inc.                            | Amazon.com, Inc.                                           | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |   1011563 | NS      | $235916722.86  | 2.08%             |  |  |  | No            |                  1 | On Loan: No      |
| American Tower Corp.                        | American Tower Corp.                                       | CUSIP: 03027X100<br>LEI: 5493006ORUSIL88JOE18 | Long             | EC               | CORP              | US        |     63936 | NS      | $11589678.72   | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Amphenol Corp.                              | Amphenol Corp., Class A                                    | CUSIP: 032095101<br>LEI: 549300D3L3G0R4U4VT04 | Long             | EC               | CORP              | US        |   2861248 | NS      | $403149843.20  | 3.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Analog Devices, Inc.                        | Analog Devices, Inc.                                       | CUSIP: 032654105<br>LEI: GYVOE5EZ4GDAVTU4CQ61 | Long             | EC               | CORP              | US        |    307065 | NS      | $81476627.10   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Apple, Inc.                                 | Apple, Inc.                                                | CUSIP: 037833100<br>LEI: HWUPKR0MPOU8FGXBT394 | Long             | EC               | CORP              | US        |   2398677 | NS      | $668871081.45  | 5.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Becton Dickinson & Co.                      | Becton Dickinson & Co.                                     | CUSIP: 075887109<br>LEI: ICE2EP6D98PQUILVRZ91 | Long             | EC               | CORP              | US        |    932036 | NS      | $180833624.72  | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Boston Scientific Corp.                     | Boston Scientific Corp.                                    | CUSIP: 101137107<br>LEI: Y6ZDD9FP4P8JSSJMW954 | Long             | EC               | CORP              | US        |   1022557 | NS      | $103871340.06  | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| CME Group, Inc.                             | CME Group, Inc.                                            | CUSIP: 12572Q105<br>LEI: LCZ7XYGSLJUHFXXNXD88 | Long             | EC               | CORP              | US        |    305291 | NS      | $85927204.86   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| CMS Energy Corp.                            | CMS Energy Corp.                                           | CUSIP: 125896100<br>LEI: 549300IA9XFBAGNIBW29 | Long             | EC               | CORP              | US        |   3080350 | NS      | $232381604.00  | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Church & Dwight Co., Inc.                   | Church & Dwight Co., Inc.                                  | CUSIP: 171340102<br>LEI: POOXSI30AWAQGYJZC921 | Long             | EC               | CORP              | US        |   2376628 | NS      | $202393640.48  | 1.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Danaher Corp.                               | Danaher Corp.                                              | CUSIP: 235851102<br>LEI: S4BKK9OTCEWQ3YHPFM11 | Long             | EC               | CORP              | US        |    756471 | NS      | $171552493.38  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Walt Disney Co. (The)                       | Walt Disney Co. (The)                                      | CUSIP: 254687106<br>LEI: 549300GZKULIZ0WOW665 | Long             | EC               | CORP              | US        |     68145 | NS      | $7119108.15    | 0.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Graco, Inc.                                 | Graco, Inc.                                                | CUSIP: 384109104<br>LEI: 4T5VJ4S81BRT6Q7GGT78 | Long             | EC               | CORP              | US        |    831271 | NS      | $68529981.24   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| L'Oreal SA                                  | L'Oreal SA                                                 | CUSIP: N/A<br>LEI: 529900JI1GG6F7RKVI53       | Long             | EC               | CORP              | FR        |    392437 | NS      | $171034820.91  | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| LVMH Moet Hennessy Louis Vuitton SE         | LVMH Moet Hennessy Louis Vuitton SE                        | CUSIP: N/A<br>LEI: IOG4E947OATN0KJYSD45       | Long             | EC               | CORP              | FR        |    192289 | NS      | $141794374.89  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Hilton Worldwide Holdings, Inc.             | Hilton Worldwide Holdings, Inc.                            | CUSIP: 43300A203<br>LEI: 549300HVGPK36ICB0B89 | Long             | EC               | CORP              | US        |    873773 | NS      | $249051518.19  | 2.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Hubbell, Inc.                               | Hubbell, Inc.                                              | CUSIP: 443510607<br>LEI: 54930088VDQ6840Y6597 | Long             | EC               | CORP              | US        |    574315 | NS      | $247776720.45  | 2.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Schneider Electric SE                       | Schneider Electric SE                                      | CUSIP: N/A<br>LEI: 969500A1YF1XUYYXS284       | Long             | EC               | CORP              | FR        |    366790 | NS      | $98314703.37   | 0.87%             |  |  |  | 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        |  87380775 | NS      | $87398250.76   | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Marsh & McLennan Cos., Inc.                 | Marsh & McLennan Cos., Inc.                                | CUSIP: 571748102<br>LEI: 549300XMP3KDCKJXIU47 | Long             | EC               | CORP              | US        |    187999 | NS      | $34488416.55   | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Mastercard, Inc.                            | Mastercard, Inc., Class A                                  | CUSIP: 57636Q104<br>LEI: AR5L2ODV9HN37376R084 | Long             | EC               | CORP              | US        |    456119 | NS      | $251107193.07  | 2.22%             |  |  |  | No            |                  1 | On Loan: No      |
| McCormick & Co., Inc.                       | McCormick & Co., Inc. (Non-Voting)                         | CUSIP: 579780206<br>LEI: 549300JQQA6MQ4OJP259 | Long             | EC               | CORP              | US        |    395084 | NS      | $26660268.32   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Mettler-Toledo International, Inc.          | Mettler-Toledo International, Inc.                         | CUSIP: 592688105<br>LEI: 5493000BD5GJNUDIUG10 | Long             | EC               | CORP              | US        |     93412 | NS      | $137943368.64  | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp.                             | Microsoft Corp.                                            | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |   3219814 | NS      | $1584180686.14 | 13.98%            |  |  |  | No            |                  1 | On Loan: No      |
| Moody's Corp.                               | Moody's Corp.                                              | CUSIP: 615369105<br>LEI: 549300GCEDD8YCF5WU84 | Long             | EC               | CORP              | US        |    280933 | NS      | $137876297.74  | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| NVIDIA Corp.                                | NVIDIA Corp.                                               | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |   5813104 | NS      | $1028919408.00 | 9.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Otis Worldwide Corp.                        | Otis Worldwide Corp.                                       | CUSIP: 68902V107<br>LEI: 549300ZLBKR8VSU25153 | Long             | EC               | CORP              | US        |   1201556 | NS      | $106758250.60  | 0.94%             |  |  |  | No            |                  1 | On Loan: No      |
| PepsiCo, Inc.                               | PepsiCo, Inc.                                              | CUSIP: 713448108<br>LEI: FJSUNZKFNQ5YPJ5OT455 | Long             | EC               | CORP              | US        |    186697 | NS      | $27769311.78   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Pool Corp.                                  | Pool Corp.                                                 | CUSIP: 73278L105<br>LEI: 5493005VZK1KMN6CO617 | Long             | EC               | CORP              | US        |    308126 | NS      | $75059493.60   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Ross Stores, Inc.                           | Ross Stores, Inc.                                          | CUSIP: 778296103<br>LEI: 549300ENZFLPGRDFZQ60 | Long             | EC               | CORP              | US        |    998358 | NS      | $176070416.88  | 1.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Salesforce, Inc.                            | Salesforce, Inc.                                           | CUSIP: 79466L302<br>LEI: RCGZFPDMRW58VJ54VR07 | Long             | EC               | CORP              | US        |    902902 | NS      | $208155027.08  | 1.84%             |  |  |  | No            |                  1 | On Loan: No      |
| Charles Schwab Corp. (The)                  | Charles Schwab Corp. (The)                                 | CUSIP: 808513105<br>LEI: 549300VSGCJ7E698NM85 | Long             | EC               | CORP              | US        |   1204783 | NS      | $111719527.59  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Sherwin-Williams Co. (The)                  | Sherwin-Williams Co. (The)                                 | CUSIP: 824348106<br>LEI: Z15BMIOX8DDH0X2OBP21 | Long             | EC               | CORP              | US        |    344711 | NS      | $118473723.59  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Starbucks Corp.                             | Starbucks Corp.                                            | CUSIP: 855244109<br>LEI: OQSJ1DU9TAOC51A47K68 | Long             | EC               | CORP              | US        |    500052 | NS      | $43559529.72   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Stryker Corp.                               | Stryker Corp.                                              | CUSIP: 863667101<br>LEI: 5493002F0SC4JTBU5137 | Long             | EC               | CORP              | US        |    119180 | NS      | $44237232.40   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| TJX Cos., Inc. (The)                        | TJX Cos., Inc. (The)                                       | CUSIP: 872540109<br>LEI: V167QI9I69W364E2DY52 | Long             | EC               | CORP              | US        |    883649 | NS      | $134243956.08  | 1.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Taiwan Semiconductor Manufacturing Co. Ltd. | Taiwan Semiconductor Manufacturing Co. Ltd.                | CUSIP: 874039100<br>LEI: 549300KB6NK5SBD14S87 | Long             | EC               | CORP              | TW        |   1305858 | NS      | $380670665.58  | 3.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Texas Instruments, Inc.                     | Texas Instruments, Inc.                                    | CUSIP: 882508104<br>LEI: WDJNR2L6D8RWOEB8T652 | Long             | EC               | CORP              | US        |    145780 | NS      | $24530400.60   | 0.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Thermo Fisher Scientific, Inc.              | Thermo Fisher Scientific, Inc.                             | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |    220768 | NS      | $130436357.44  | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| TransUnion                                  | TransUnion                                                 | CUSIP: 89400J107<br>LEI: 549300ZS772LUNUMRB03 | Long             | EC               | CORP              | US        |   3398966 | NS      | $289082058.30  | 2.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Veeva Systems, Inc.                         | Veeva Systems, Inc., Class A                               | CUSIP: 922475108<br>LEI: 549300YZEXPDB92M2F02 | Long             | EC               | CORP              | US        |     55330 | NS      | $13295245.70   | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Verisk Analytics, Inc.                      | Verisk Analytics, Inc.                                     | CUSIP: 92345Y106<br>LEI: 549300I1YSWNIRKBWP67 | Long             | EC               | CORP              | US        |    523682 | NS      | $117865107.74  | 1.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Visa, Inc.                                  | Visa, Inc., Class A                                        | CUSIP: 92826C839<br>LEI: 549300JZ4OKEHW3DPJ59 | Long             | EC               | CORP              | US        |   1195015 | NS      | $399660816.60  | 3.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Tencent Holdings Ltd.                       | Tencent Holdings Ltd.                                      | CUSIP: N/A<br>LEI: 254900N4SLUMW4XUYY11       | Long             | EC               | CORP              | KY        |   2839100 | NS      | $222988401.74  | 1.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Brookfield Asset Management Ltd.            | Brookfield Asset Management Ltd., Class A                  | CUSIP: 113004105<br>LEI: 549300CZ84WPNJZKY093 | Long             | EC               | CORP              | CA        |   1984723 | NS      | $104558522.49  | 0.92%             |  |  |  | No            |                  1 | On Loan: —       |
| EURO                                        | EURO                                                       | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | XX        |       726 | OU      | $842.66        | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Aon plc                                     | Aon plc, Class A                                           | CUSIP: N/A<br>LEI: 635400FALWQYX5E6QC64       | Long             | EC               | CORP              | IE        |    877210 | NS      | $310462163.20  | 2.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Accenture plc                               | Accenture plc, Class A                                     | CUSIP: N/A<br>LEI: 5493000EWHDSR3MZWH98       | Long             | EC               | CORP              | IE        |   1420708 | NS      | $355177000.00  | 3.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Corp. plc                             | Eaton Corp. plc                                            | CUSIP: N/A<br>LEI: 549300VDIGTMXUNT7H71       | Long             | EC               | CORP              | IE        |    675673 | NS      | $233708533.97  | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| ICON plc                                    | ICON plc                                                   | CUSIP: N/A<br>LEI: 6354008SRQGEMC4XFI67       | Long             | EC               | CORP              | IE        |     37132 | NS      | $6869420.00    | 0.06%             |  |  |  | No            |                  1 | On Loan: No      |
| STERIS plc                                  | STERIS plc                                                 | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | IE        |    970276 | NS      | $258365093.28  | 2.28%             |  |  |  | No            |                  1 | On Loan: No      |
| TE Connectivity plc                         | TE Connectivity plc                                        | CUSIP: N/A<br>LEI: 6367003TB6K484NFHE54       | Long             | EC               | CORP              | IE        |    872176 | NS      | $197242602.40  | 1.74%             |  |  |  | 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        | 100751739 | NS      | $100751739.30  | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-12-30

**Name of Applicant:** MFS Massachusetts Investors Growth Stock Fund

**Signature:** James Byrne

**Name of Signer:** James Byrne

**Title:** Assistant Treasurer