# EDGAR Filing Document

**Accession Number:** 0000916053
**File Stem:** 0001133228-25-010024
**Filing Date:** 2025-9
**Character Count:** 14314
**Document Hash:** bef0f378379eacae44e11dbeff5790d6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-25-010024.hdr.sgml**: 20250923

**ACCESSION NUMBER**: 0001133228-25-010024

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250923

**DATE AS OF CHANGE**: 20250923

**EFFECTIVENESS DATE**: 20250923

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASSMUTUAL SELECT FUNDS
- **CENTRAL INDEX KEY:** 0000916053

**ORGANIZATION NAME:**
- **EIN:** 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:** 251334548

**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 Company Value Fund (Series ID: S000003671)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MMYAX         | C000010242 |
| Administrative Class | MMYLX         | C000010243 |
| Class R3             | MSVNX         | C000010244 |
| Class R5             | MSVSX         | C000010245 |
| Service Class        | MMVYX         | C000010246 |
| Class I              | MSVZX         | C000093672 |
| Class R4             | MMVFX         | C000140368 |
| Class Y              | MMNLX         | C000240794 |

---

### MassMutual Diversified Value Fund (Series ID: S000003679)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MDDAX         | C000010282 |
| Administrative Class | MDDLX         | C000010283 |
| Class R3             | MDVNX         | C000010284 |
| Class R5             | MDVSX         | C000010285 |
| Service Class        | MDVYX         | C000010286 |
| Class I              | MDDIX         | C000140383 |
| Class R4             | MDDRX         | C000140384 |
| Class Y              | MMNBX         | C000240796 |

---

### MassMutual Equity Opportunities Fund (Series ID: S000003681)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MFVAX         | C000010292 |
| Administrative Class | MMFVX         | C000010293 |
| Class R3             | MFVNX         | C000010294 |
| Class R5             | MFVSX         | C000010295 |
| Service Class        | MMFYX         | C000010296 |
| Class I              | MFVZX         | C000093673 |
| Class R4             | MFVFX         | C000140385 |
| Class Y              | MMZOX         | C000240797 |

---

### MassMutual Total Return Bond Fund (Series ID: S000029393)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class R5             | MSPSX         | C000090284 |
| Service Class        | MSPHX         | C000090285 |
| Administrative Class | MSPLX         | C000090286 |
| Class R4             | MSPGX         | C000090287 |
| Class R3             | MSPNX         | C000090288 |
| Class I              | MSPZX         | C000090289 |
| Class A              | MPTRX         | C000140415 |
| Class Y              | MMNNX         | C000240800 |

---

### MassMutual Select T. Rowe Price International Equity Fund (Series ID: S000061114)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMIUX         | C000198059 |

---

## Series and Classes Contracts Data

### MassMutual Small Company Value Fund (Series ID: S000003671)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010242 | Class A              | MMYAX           |
| C000010243 | Administrative Class | MMYLX           |
| C000010244 | Class R3             | MSVNX           |
| C000010245 | Class R5             | MSVSX           |
| C000010246 | Service Class        | MMVYX           |
| C000093672 | Class I              | MSVZX           |
| C000140368 | Class R4             | MMVFX           |
| C000240794 | Class Y              | MMNLX           |

### MassMutual Diversified Value Fund (Series ID: S000003679)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010282 | Class A              | MDDAX           |
| C000010283 | Administrative Class | MDDLX           |
| C000010284 | Class R3             | MDVNX           |
| C000010285 | Class R5             | MDVSX           |
| C000010286 | Service Class        | MDVYX           |
| C000140383 | Class I              | MDDIX           |
| C000140384 | Class R4             | MDDRX           |
| C000240796 | Class Y              | MMNBX           |

### MassMutual Equity Opportunities Fund (Series ID: S000003681)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010292 | Class A              | MFVAX           |
| C000010293 | Administrative Class | MMFVX           |
| C000010294 | Class R3             | MFVNX           |
| C000010295 | Class R5             | MFVSX           |
| C000010296 | Service Class        | MMFYX           |
| C000093673 | Class I              | MFVZX           |
| C000140385 | Class R4             | MFVFX           |
| C000240797 | Class Y              | MMZOX           |

### MassMutual Total Return Bond Fund (Series ID: S000029393)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000090284 | Class R5             | MSPSX           |
| C000090285 | Service Class        | MSPHX           |
| C000090286 | Administrative Class | MSPLX           |
| C000090287 | Class R4             | MSPGX           |
| C000090288 | Class R3             | MSPNX           |
| C000090289 | Class I              | MSPZX           |
| C000140415 | Class A              | MPTRX           |
| C000240800 | Class Y              | MMNNX           |

### MassMutual Select T. Rowe Price International Equity Fund (Series ID: S000061114)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198059 | Class I      | MMIUX           |

#### MASSMUTUAL FUNDS<br>

#### MassMutual Core Bond Fund<br>

#### MassMutual Diversified Value Fund<br>

#### MassMutual Equity Opportunities Fund<br>

#### MassMutual Total Return Bond Fund<br>

#### Supplement dated September 23, 2025 to the <br>

#### Prospectuses dated February 1, 2025 and February 1, 2025, as Revised on February 5, 2025
This supplement provides new and additional information beyond that contained in the Prospectuses and any previous supplements. It should be retained and read in conjunction with the Prospectuses and any previous supplements.

*Effective September 15, 2025, the reorganization of each Selling Fund listed in the table below (each, a "Selling Fund") with and into the corresponding Acquiring Fund listed in the table below (each, an "Acquiring Fund") occurred pursuant to an Agreement and Plan of Reorganization, approved by the respective Board of Trustees of each Selling Fund and each Acquiring Fund. Each Selling Fund's assets and liabilities were transferred to the corresponding Acquiring Fund in return for shares of the Acquiring Fund with an aggregate net asset value equal to the aggregate value of the assets that it received from its corresponding Selling Fund, less the liabilities it assumed from that corresponding Selling Fund. The Acquiring Fund shares were distributed pro rata to shareholders of the respective Selling Fund, in liquidation of the Selling Fund. Existing shareholders of the Selling Fund thus became shareholders of the applicable Acquiring Fund and received shares of the applicable Acquiring Fund with a value equal to their shares of the Selling Fund at the time of the reorganization.* 

---

| | |
|:---|:---|
| **Selling Funds** | **Acquiring Funds**  |
| MassMutual Total Return Bond Fund<br>(*a series of MassMutual Select Funds*) | MassMutual Core Bond Fund<br>(*a series of MassMutual Premier Funds*)  |
| MassMutual Equity Opportunities Fund<br>(*a series of MassMutual Select Funds*) | MassMutual Diversified Value Fund<br>(*a series of MassMutual Select Funds*) |

---

*Effective September 15, 2025, the following information replaces similar information for the **MassMutual Core Bond Fund** found under the headings **Annual Fund Operating Expenses** and **Example** in the section titled **Fees and Expenses of the Fund** on page 15 of its Prospectus:*

**Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment)

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Class I**  | **Class R5**  | **Service Class**  | **Administrative** <br>**Class**  | **Class R4**  | **Class A**  | **Class R3**  | **Class Y**  |
| Management Fees<sup>(1)</sup>  | 0.30%  | 0.30%  | 0.30%  | 0.30%  | 0.30%  | 0.30%  | 0.30%  | 0.30%  |
| &nbsp;&nbsp; Distribution and Service (Rule 12b-1) Fees  |  |  |  |  | 0.25%  | 0.25%  | 0.50%  |  |
| Other Expenses  | 0.07%  | 0.17%  | 0.27%  | 0.37%  | 0.27%  | 0.32%  | 0.27%  | 0.17%  |
|  **Total Annual Fund <br> Operating Expenses**  | **0.37%**  | **0.47%**  | **0.57%**  | **0.67%**  | **0.82%**  | **0.87%**  | **1.07%**  | **0.47%**  |
| Expense Reimbursement  | (0.04%)  | (0.04%)  | (0.04%)  | (0.04%)  | (0.04%)  | (0.04%)  | (0.04%)  | (0.04%)  |
| &nbsp;&nbsp; Total Annual Fund <br> Operating Expenses after <br> Expense <br> Reimbursement<sup>(2)</sup>  | 0.33%  | 0.43%  | 0.53%  | 0.63%  | 0.78%  | 0.83%  | 1.03%  | 0.43% |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Management Fees have been restated to reflect current fees.

&nbsp;&nbsp;&nbsp;&nbsp;(2) The expenses in the above table reflect a written agreement by MML
 Advisers to cap the fees and expenses of the Fund (other than extraordinary legal and other expenses,
 Acquired Fund Fees and Expenses, interest expense, expenses related to borrowings, securities lending,
 leverage, taxes, and brokerage, short sale dividend and loan expense, or other non-recurring or unusual
 expenses such as organizational expenses and shareholder meeting expenses, as applicable) through January
 31, 2027, to the extent that Total Annual Fund Operating Expenses after Expense Reimbursement would
 otherwise exceed 0.33%, 0.43%, 0.53%, 0.63%, 0.78%, 0.83%, 1.03%, and 0.43% for Classes I, R5, Service,
 Administrative, R4, A, R3, and Y, respectively. The Total Annual Fund Operating Expenses after Expense
 Reimbursement shown in the above table may exceed these amounts, because, as noted in the previous
 sentence, certain fees and expenses are excluded from the cap. The agreement can only be terminated
 by mutual consent of the Board of Trustees on behalf of the Fund and MML Advisers.

**Example**

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. It assumes that you invest $10,000 in each share class of the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. For Class A shares, the example includes the front-end sales charge. The example also assumes that your investment earns a 5% return each year and that the Fund's operating expenses are exactly as described in the preceding table. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **1 Year**  | **3 Years**  | **5 Years**  | **10 Years**  |
| Class I  | &nbsp;&nbsp; $34  | $113  | $202  | &nbsp;&nbsp; $462  |
| Class R5  | &nbsp;&nbsp; $44  | $145  | $257  | &nbsp;&nbsp; $586  |
| Service Class  | &nbsp;&nbsp; $54  | $177  | $313  | &nbsp;&nbsp; $708  |
| Administrative Class  | &nbsp;&nbsp; $64  | $209  | $368  | &nbsp;&nbsp; $829  |
| Class R4  | &nbsp;&nbsp; $80  | $256  | $449  | $1008  |
| Class A  | $506  | $685  | $881  | $1447  |
| Class R3  | $105  | $335  | $585  | $1300  |
| Class Y  | &nbsp;&nbsp; $44  | $145  | $257  | &nbsp;&nbsp; $586 |

---

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### SELMPRO-25-11<br>

#### PREMPRO-25-12

#### MASSMUTUAL FUNDS<br>

#### MassMutual Small Company Value Fund<br>

#### Supplement dated September 23, 2025 to the<br>

#### Prospectus dated February 1, 2025 and the<br>

#### Summary Prospectus dated February 1, 2025
This supplement provides new and additional information beyond that contained in the Prospectus and Summary Prospectus, and any previous supplements. It should be retained and read in conjunction with the Prospectus and Summary Prospectus, and any previous supplements.

*Effective September 12, 2025 (the "Termination Date"), the **MassMutual Small Company Value Fund** (the "Fund") was dissolved pursuant to a Plan of Liquidation and Termination, approved by the Board of Trustees of the MassMutual Select Funds. Shareholders of the various classes of shares of the Fund received proceeds in proportion to the number of shares of such class held by each of them on the Termination Date.* 

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### SELMPRO-25-12 <br>

#### SCV-25-03

#### MASSMUTUAL FUNDS<br>

#### MassMutual Select T. Rowe Price International Equity Fund<br>

#### Supplement dated September 23, 2025 to the<br>

#### Prospectus dated February 1, 2025 and the<br>

#### Summary Prospectus dated February 1, 2025
This supplement provides new and additional information beyond that contained in the Prospectus and Summary Prospectus, and any previous supplements. It should be retained and read in conjunction with the Prospectus and Summary Prospectus, and any previous supplements.

*Effective September 12, 2025 (the "Termination Date"), the **MassMutual Select T. Rowe Price International Equity Fund** (the "Fund") was dissolved pursuant to a Plan of Liquidation and Termination, approved by the Board of Trustees of the MassMutual Select Funds. Shareholders of Class I shares of the Fund received proceeds in proportion to the number of Class I shares held by each of them on the Termination Date.* 

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### SELMPRO-25-13 <br>

#### TRIE-25-04