# EDGAR Filing Document

**Accession Number:** 0000798250
**File Stem:** 0001741773-25-002684
**Filing Date:** 2025-7
**Character Count:** 7392
**Document Hash:** 888c65d7fbad4d915dd2c12a63d34ac6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001741773-25-002684.hdr.sgml**: 20250710

**ACCESSION NUMBER**: 0001741773-25-002684

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250710

**DATE AS OF CHANGE**: 20250710

**EFFECTIVENESS DATE**: 20250710

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS SERIES TRUST II
- **CENTRAL INDEX KEY:** 0000798250

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-07637
- **FILM NUMBER:** 251115873

**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 SERIES TRUST II /MA/
- **DATE OF NAME CHANGE:** 19940131

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MFS LIFETIME EMERGING GROWTH FUND
- **DATE OF NAME CHANGE:** 19930408

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LIFETIME EMERGING GROWTH TRUST
- **DATE OF NAME CHANGE:** 19920703
**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:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-14677
- **FILM NUMBER:** 251115875

**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
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS SERIES TRUST X
- **CENTRAL INDEX KEY:** 0000783740

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-01657
- **FILM NUMBER:** 251115874

**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 GOVERNMENT MORTGAGE FUND
- **DATE OF NAME CHANGE:** 19930408

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MFS GOVERNMENT INCOME PLUS FUND
- **DATE OF NAME CHANGE:** 19930312

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MASSACHUSETTS MFS GOVERNMENT INCOME PLUS FUND
- **DATE OF NAME CHANGE:** 19921015

## Series and Classes Contracts Data

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

---

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

---

### MFS Global Opportunistic Bond Fund (Series ID: S000028956)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| A          | MGBAX         | C000088935 |
| B          | MGBBX         | C000088936 |
| C          | MGBDX         | C000088937 |
| I          | MGBJX         | C000088938 |
| R1         | MGBKX         | C000088939 |
| R2         | MGBLX         | C000088940 |
| R3         | MGBMX         | C000088941 |
| R4         | MGBNX         | C000088942 |
| R6         | MGBOX         | C000120923 |

---

### MFS Growth Fund (Series ID: S000002419)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| A          | MFEGX         | C000006430 |
| R4         | MFEJX         | C000006431 |
| B          | MEGBX         | C000006435 |
| C          | MFECX         | C000006436 |
| I          | MFEIX         | C000006437 |
| R1         | MFELX         | C000006439 |
| R2         | MEGRX         | C000006441 |
| R3         | MFEHX         | C000006442 |
| R6         | MFEKX         | C000102727 |

---

## 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           |

### MFS Global Opportunistic Bond Fund (Series ID: S000028956)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000088935 | A            | MGBAX           |
| C000088936 | B            | MGBBX           |
| C000088937 | C            | MGBDX           |
| C000088938 | I            | MGBJX           |
| C000088939 | R1           | MGBKX           |
| C000088940 | R2           | MGBLX           |
| C000088941 | R3           | MGBMX           |
| C000088942 | R4           | MGBNX           |
| C000120923 | R6           | MGBOX           |

### MFS Growth Fund (Series ID: S000002419)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000006430 | A            | MFEGX           |
| C000006431 | R4           | MFEJX           |
| C000006435 | B            | MEGBX           |
| C000006436 | C            | MFECX           |
| C000006437 | I            | MFEIX           |
| C000006439 | R1           | MFELX           |
| C000006441 | R2           | MEGRX           |
| C000006442 | R3           | MFEHX           |
| C000102727 | R6           | MFEKX           |

![](img_a3eea1dd669d4f1.jpg)

SUPPLEMENT TO THE STATEMENT OF ADDITIONAL INFORMATION

*The date of this supplement is July 10, 2025.*

## For the MFS <sup>®</sup> Funds listed below:
<br> MFS<sup>®</sup> GLOBAL OPPORTUNISTIC BOND FUND MASSACHUSETTS INVESTORS GROWTH STOCK FUND <br> MFS<sup>®</sup> GROWTH FUND

**Effective immediately, the second paragraph in the sub-section entitled "Organization of the Fund" under the main heading entitled "MANAGEMENT OF THE FUND" is restated as follows:**

MFS Growth Fund, an open-end investment company, is a series of MFS Series Trust II, a Massachusetts business trust organized in 1986. MFS Growth Fund is a non-diversified fund. At a special shareholder meeting held on July 10, 2025, shareholders of MFS Growth Fund approved a proposal to reclassify MFS Growth Fund from diversified to non-diversified.

MARCH-SAI-COMBINED-SUP-I-071025

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