# EDGAR Filing Document

**Accession Number:** 0000916053
**File Stem:** 0001104659-23-037212
**Filing Date:** 2023-3
**Character Count:** 3684
**Document Hash:** a76e09e3ce84c9ae9706548819dfd32c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-037212.hdr.sgml**: 20230328

**ACCESSION NUMBER**: 0001104659-23-037212

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230328

**DATE AS OF CHANGE**: 20230327

**EFFECTIVENESS DATE**: 20230328

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASSMUTUAL SELECT FUNDS
- **CENTRAL INDEX KEY:** 0000916053
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-73824
- **FILM NUMBER:** 23765611

**BUSINESS ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111
- **BUSINESS PHONE:** 413-744-1000

**MAIL ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MASSMUTUAL INSTITUTIONAL FUNDS
- **DATE OF NAME CHANGE:** 19931213

## Series and Classes Contracts Data

### MassMutual Small Cap Growth Equity Fund (Series ID: S000003668)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MMGEX         | C000010227 |
| Administrative Class | MSGLX         | C000010228 |
| Class R3             | MSGNX         | C000010229 |
| Class R5             | MSGSX         | C000010230 |
| Service Class        | MSCYX         | C000010231 |
| Class I              | MSGZX         | C000093671 |
| Class R4             | MSERX         | C000140361 |
| Class Y              | nan           | C000240793 |

---

## Series and Classes Contracts Data

### MassMutual Small Cap Growth Equity Fund (Series ID: S000003668)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010227 | Class A              | MMGEX           |
| C000010228 | Administrative Class | MSGLX           |
| C000010229 | Class R3             | MSGNX           |
| C000010230 | Class R5             | MSGSX           |
| C000010231 | Service Class        | MSCYX           |
| C000093671 | Class I              | MSGZX           |
| C000140361 | Class R4             | MSERX           |
| C000240793 | Class Y              |  |

#### MASSMUTUAL FUNDS MassMutual Small Cap Growth Equity Fund Supplement dated March 28, 2023 to the Prospectus dated February 1, 2023 and the Summary Prospectus dated February 1, 2023
This supplement provides new and additional information beyond that contained in the Prospectus and Summary Prospectus. It should be retained and read in conjunction with the Prospectus and Summary Prospectus.

 *The information for **John V. Schneider** found under the heading **Portfolio Manager(s)** in the section titled **Management** (page 89 of the Prospectus) as well as under the heading **Subadvisers and Portfolio Managers** in the section titled **Management of the Funds** on page 138 of the Prospectus, is hereby removed.* 

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### B3001M-23-01 SCGE-23-01

------

 **MASSMUTUAL FUNDS MassMutual Small Cap Growth Equity Fund Supplement dated March 28, 2023 to the Statement of Additional Information dated February 1, 2023 As Revised on February 7, 2023** 

This supplement provides new and additional information beyond that contained in the Statement of Additional Information ("SAI"). It should be retained and read in conjunction with the SAI.

#### The information for John V. Schneider found on page B-341 in the section titled Appendix C—Additional Portfolio Manager Information is hereby removed.

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### SAI B3001M-23-01

------