# EDGAR Filing Document

**Accession Number:** 0000916053
**File Stem:** 0001104659-23-026833
**Filing Date:** 2023-2
**Character Count:** 5123
**Document Hash:** fb50a7c08089f9dc78f8972977b46bc6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-026833.hdr.sgml**: 20230228

**ACCESSION NUMBER**: 0001104659-23-026833

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230228

**DATE AS OF CHANGE**: 20230228

**EFFECTIVENESS DATE**: 20230228

**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:** 23687576

**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 Select T. Rowe Price Bond Asset Fund (Series ID: S000061106)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMBEX         | C000198048 |

---

## Series and Classes Contracts Data

### MassMutual Select T. Rowe Price Bond Asset Fund (Series ID: S000061106)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198048 | Class I      | MMBEX           |

#### MASSMUTUAL FUNDS MassMutual Select T. Rowe Price Bond Asset Fund (the "Fund") Supplement dated February 28, 2023 to the Prospectus dated February 1, 2023
This supplement provides new and additional information beyond that contained in the Prospectus. It should be retained and read in conjunction with the Prospectus.

*The information for* ***Arif Husain, CFA*** *found under the heading* ***Portfolio Manager(s)*** *in the section titled* ***Management*** *on page 13 as well as under the heading* ***Subadvisers and Portfolio Managers*** *in the section titled* ***Management of the Funds*** *on page 71, is hereby removed.* 

*The following information supplements the information for the Fund found under the heading* ***Portfolio Manager(s)*** *in the section titled* ***Management*** *on page 13*:

**Andrew J. Keirle** is a Vice President and Portfolio Manager at T. Rowe Price International. He has managed the Fund since February 2023.

 *The following information supplements the information for **T. Rowe Price Associates, Inc.** found beginning on page 69 under the heading **Subadvisers and Portfolio Managers** in the section titled **Management of the Funds**:* 

**Andrew J. Keirle** 

is a portfolio manager of the ***MassMutual Select T. Rowe Price Bond Asset Fund***. Mr. Keirle is a Vice President and Portfolio Manager for T. Rowe Price International. He joined T. Rowe Price International in 2005 and his investment experience dates from 1996. Mr. Keirle has served as a portfolio manager for T. Rowe Price International throughout the past five years.

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### B3001M-TRUN-23-01

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#### MASSMUTUAL FUNDS MassMutual Select T. Rowe Price Bond Asset Fund (the "Fund") Supplement dated February 28, 2023 to the Statement of Additional Information dated February 1, 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 Arif Husain found on page B-115 in the section titled Appendix C — Additional Portfolio Manager Information is hereby removed.

#### The following information replaces similar information for the Fund found on page B-115 in the section titled Appendix C — Additional Portfolio Manager Information :
The portfolio managers of the MM Select T. Rowe Price Bond Asset Fund are Steve Bartolini, Andrew J. Kierle, and Ken Orchard.

 ***The following information supplements the information for the Fund found on page B-115 under the headings Other Accounts Managed and Ownership of Securities in the section titled Appendix C — Additional Portfolio Manager Information:***

#### Other Accounts Managed :

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Number of <br> Accounts <br> Managed\***  | **Total Assets\***  | **Number of Accounts Managed <br> for which Advisory Fee is <br> Performance-Based\***  | **Total <br> Assets\***  |
| **Andrew J. Keirle** |  |  |  |  |
| &nbsp;&nbsp;&nbsp; Registered investment companies\*\*  | 2 | $363.6 million  | 0 | $0 |
| &nbsp;&nbsp;&nbsp; Other pooled investment vehicles  | 1 | $129.8 million  | 0 | $0 |
| &nbsp;&nbsp;&nbsp; Other accounts  | 1 | $91.3 million  | 0 | $0 |

---

\*

The information provided is as of December 31, 2022.

\*\*

Does not include the MM Select T. Rowe Price Bond Asset Fund.

#### Ownership of Securities :
As of December 31, 2022, Andrew J. Keirle did not own any shares of the MM Select T. Rowe Price Bond Asset Fund.

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### SAI B3001M-TRUN-23-01

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