# EDGAR Filing Document

**Accession Number:** 0000916053
**File Stem:** 0001410368-25-043355
**Filing Date:** 2025-12
**Character Count:** 44369
**Document Hash:** 6295011d0fbee1d0e80f6d0da1e700f5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-043355.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0001410368-25-043355

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**EFFECTIVENESS DATE**: 20251229

**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:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-73824
- **FILM NUMBER:** 251606586

**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 Blue Chip Growth Fund (Series ID: S000003658)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MBCGX         | C000010176 |
| Administrative Class | MBCLX         | C000010177 |
| Class R3             | MBCNX         | C000010178 |
| Class R5             | MBCSX         | C000010179 |
| Service Class        | MBCYX         | C000010180 |
| Class I              | MBCZX         | C000140351 |
| Class R4             | MBGFX         | C000140352 |
| Class Y              | MMZMX         | C000240788 |

---

### MM S&P 500 Index Fund (Series ID: S000003661)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class R4             | MIEAX         | C000010191 |
| Class R3             | MMINX         | C000010193 |
| Service Class        | MMIEX         | C000010194 |
| Administrative Class | MIEYX         | C000010195 |
| Class R5             | MIEZX         | C000010196 |
| Class I              | MMIZX         | C000108421 |
| Class A              | MMFFX         | C000140354 |

---

### MassMutual Mid Cap Growth Fund (Series ID: S000003665)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MEFAX         | C000010212 |
| Administrative Class | MMELX         | C000010213 |
| Class R3             | MEFNX         | C000010214 |
| Class R5             | MGRFX         | C000010215 |
| Service Class        | MEFYX         | C000010216 |
| Class I              | MEFZX         | C000093669 |
| Class R4             | MEFFX         | C000140357 |
| Class Y              | MMNGX         | C000240790 |

---

### MassMutual Overseas Fund (Series ID: S000003667)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MOSAX         | C000010222 |
| Administrative Class | MOSLX         | C000010223 |
| Class R3             | MOSNX         | C000010224 |
| Class R5             | MOSSX         | C000010225 |
| Service Class        | MOSYX         | C000010226 |
| Class I              | MOSZX         | C000093670 |
| Class R4             | MOSFX         | C000140360 |
| Class Y              | MMOJX         | C000240792 |

---

### 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              | MMNJX         | C000240793 |

---

### 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 RetireSMART by JPMorgan 2020 Fund (Series ID: S000003675)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MRTAX         | C000010262 |
| Class R3             | MRTNX         | C000010264 |
| Service Class        | MRTSX         | C000010265 |
| Administrative Class | MRTYX         | C000010266 |
| Class I              | MRTDX         | C000140371 |
| Class R5             | MRTBX         | C000140372 |
| Class R4             | MRTHX         | C000140373 |

---

### MassMutual RetireSMART by JPMorgan 2030 Fund (Series ID: S000003676)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MRYAX         | C000010267 |
| Class R3             | MRYNX         | C000010269 |
| Service Class        | MRYSX         | C000010270 |
| Administrative Class | MRYYX         | C000010271 |
| Class I              | MRYUX         | C000140374 |
| Class R5             | MRYTX         | C000140375 |
| Class R4             | MRYZX         | C000140376 |

---

### MassMutual RetireSMART by JPMorgan 2040 Fund (Series ID: S000003677)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MRFAX         | C000010272 |
| Class R3             | MFRNX         | C000010274 |
| Service Class        | MFRSX         | C000010275 |
| Administrative Class | MRFYX         | C000010276 |
| Class I              | MRFUX         | C000140377 |
| Class R5             | MRFTX         | C000140378 |
| Class R4             | MRFZX         | C000140379 |

---

### MassMutual RetireSMART by JPMorgan In Retirement Fund (Series ID: S000003678)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MRDAX         | C000010277 |
| Class R3             | MDRNX         | C000010279 |
| Service Class        | MDRSX         | C000010280 |
| Administrative Class | MDRYX         | C000010281 |
| Class I              | MDRVX         | C000140380 |
| Class R5             | MDRTX         | C000140381 |
| Class R4             | MDRZX         | C000140382 |

---

### 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 Small Cap Value Equity Fund (Series ID: S000012476)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Class        | MMQYX         | C000033919 |
| Class A              | MMQAX         | C000033920 |
| Administrative Class | MMQLX         | C000033921 |
| Class R5             | MMQSX         | C000033923 |
| Class I              | MMQIX         | C000140386 |
| Class R4             | MMQFX         | C000140387 |
| Class R3             | MMQTX         | C000140388 |
| Class Y              | MMNKX         | C000240798 |

---

### MassMutual Mid Cap Value Fund (Series ID: S000013194)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MLUAX         | C000035486 |
| Administrative Class | MLULX         | C000035487 |
| Class R3             | MLUNX         | C000035488 |
| Class R5             | MLUSX         | C000035489 |
| Service Class        | MLUYX         | C000035490 |
| Class I              | MLUZX         | C000108422 |
| Class R4             | MLUFX         | C000140389 |
| Class Y              | MMNHX         | C000240799 |

---

### MassMutual RetireSMART by JPMorgan 2050 Fund (Series ID: S000020009)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class R3             | MMRNX         | C000056105 |
| Service Class        | MMTSX         | C000056106 |
| Administrative Class | MMRYX         | C000056107 |
| Class A              | MMARX         | C000056109 |
| Class I              | MMRUX         | C000140393 |
| Class R5             | MMRTX         | C000140394 |
| Class R4             | MMRZX         | C000140395 |

---

### MassMutual RetireSMART by JPMorgan 2025 Fund (Series ID: S000028351)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MMSDX         | C000086630 |
| Service Class        | MMISX         | C000086632 |
| Administrative Class | MMIYX         | C000086633 |
| Class I              | MMNUX         | C000140403 |
| Class R5             | MMNTX         | C000140404 |
| ClassR4              | MMNZX         | C000140405 |
| Class R3             | MMNRX         | C000140406 |

---

### MassMutual RetireSMART by JPMorgan 2035 Fund (Series ID: S000028352)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MMXAX         | C000086634 |
| Service Class        | MMXSX         | C000086636 |
| Administrative Class | MMXYX         | C000086637 |
| Class I              | MMXUX         | C000140407 |
| Class R5             | MMXTX         | C000140408 |
| Class R4             | MMXZX         | C000140409 |
| Class R3             | MMXNX         | C000140410 |

---

### MassMutual RetireSMART by JPMorgan 2045 Fund (Series ID: S000028353)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MMKAX         | C000086639 |
| Service Class        | MMKSX         | C000086641 |
| Administrative Class | MMKYX         | C000086642 |
| Class I              | MMKUX         | C000140411 |
| Class R5             | MMKTX         | C000140412 |
| Class R4             | MMKZX         | C000140413 |
| Class R3             | MMKNX         | C000140414 |

---

### 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 20/80 Allocation Fund (Series ID: S000032893)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class R5             | MRCSX         | C000101523 |
| Service Class        | MRCYX         | C000101524 |
| Administrative Class | MRCLX         | C000101525 |
| Class A              | MCTAX         | C000101526 |
| Class I              | MRCUX         | C000140416 |
| Class R4             | MRCZX         | C000140417 |
| Class R3             | MRCVX         | C000140418 |
| Class Y              | MMNOX         | C000240801 |

---

### MassMutual 40/60 Allocation Fund (Series ID: S000032894)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class R5             | MROSX         | C000101527 |
| Service Class        | MRMYX         | C000101528 |
| Administrative Class | MRMLX         | C000101529 |
| Class A              | MRMAX         | C000101530 |
| Class I              | MRMUX         | C000140419 |
| Class R4             | MRMZX         | C000140420 |
| Class R3             | MRMTX         | C000140421 |
| Class Y              | MMNPX         | C000240802 |

---

### MassMutual 60/40 Allocation Fund (Series ID: S000032895)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Class        | MROYX         | C000101531 |
| Administrative Class | MRSLX         | C000101532 |
| Class A              | MOGAX         | C000101533 |
| Class R5             | MRSSX         | C000101534 |
| Class I              | MROUX         | C000140422 |
| Class R4             | MROZX         | C000140423 |
| Class R3             | MROTX         | C000140424 |
| Class Y              | MMNQX         | C000240803 |

---

### MassMutual 80/20 Allocation Fund (Series ID: S000032896)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class R5             | MRRSX         | C000101535 |
| Service Class        | MRGYX         | C000101536 |
| Administrative Class | MRGLX         | C000101537 |
| Class A              | MRRAX         | C000101538 |
| Class I              | MRGUX         | C000140425 |
| Class R4             | MRGZX         | C000140426 |
| Class R3             | MRGVX         | C000140427 |
| Class Y              | MMNSX         | C000240804 |

---

### MassMutual RetireSMART by JPMorgan 2055 Fund (Series ID: S000042052)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Class        | MMWSX         | C000130636 |
| Administrative Class | MMWYX         | C000130637 |
| Class A              | MMWAX         | C000130639 |
| Class I              | MMWZX         | C000140434 |
| Class R5             | MMWUX         | C000140435 |
| Class R4             | MMWEX         | C000140436 |
| Class R3             | MMWTX         | C000140437 |

---

### MassMutual RetireSMART by JPMorgan 2060 Fund (Series ID: S000051694)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class I              | MMWIX         | C000162675 |
| Class R5             | MMWHX         | C000162676 |
| Service Class        | MMWGX         | C000162677 |
| Administrative Class | MMWFX         | C000162678 |
| Class A              | MMWDX         | C000162679 |
| Class R4             | MMWCX         | C000162680 |
| Class R3             | MMWBX         | C000162681 |

---

### MM Equity Asset Fund (Series ID: S000055552)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MSEJX         | C000174852 |

---

### MassMutual Select T. Rowe Price Retirement Balanced Fund (Series ID: S000061101)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMBVX         | C000198028 |
| Class M5   | MMBWX         | C000198029 |
| Class M4   | MMBYX         | C000198030 |
| Class M3   | MMBZX         | C000198031 |

---

### MassMutual Select T. Rowe Price Retirement 2045 Fund (Series ID: S000061102)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMFTX         | C000198032 |
| Class M5   | MMFUX         | C000198033 |
| Class M4   | MMFWX         | C000198034 |
| Class M3   | MMFZX         | C000198035 |

---

### MassMutual Select T. Rowe Price Retirement 2050 Fund (Series ID: S000061103)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMDDX         | C000198036 |
| Class M5   | MMDFX         | C000198037 |
| Class M4   | MMDGX         | C000198038 |
| Class M3   | MMDHX         | C000198039 |

---

### MassMutual Select T. Rowe Price Retirement 2055 Fund (Series ID: S000061104)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMDJX         | C000198040 |
| Class M5   | MMDKX         | C000198041 |
| Class M4   | MMDMX         | C000198042 |
| Class M3   | MMDOX         | C000198043 |

---

### MassMutual Select T. Rowe Price Retirement 2060 Fund (Series ID: S000061105)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMSKX         | C000198044 |
| Class M5   | MMSOX         | C000198045 |
| Class M4   | MMSGX         | C000198046 |
| Class M3   | MMSVX         | C000198047 |

---

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

---

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

---

### MassMutual Select T. Rowe Price Large Cap Blend Fund (Series ID: S000061108)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMLRX         | C000198050 |

---

### MassMutual Select T. Rowe Price Real Assets Fund (Series ID: S000061110)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMRFX         | C000198052 |

---

### MassMutual Select T. Rowe Price Small and Mid Cap Blend Fund (Series ID: S000061111)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMBUX         | C000198053 |

---

### MassMutual Select T. Rowe Price Retirement 2005 Fund (Series ID: S000061112)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMFBX         | C000198054 |
| Class M5   | MMFDX         | C000198055 |
| Class M4   | MMFEX         | C000198056 |
| Class M3   | MMFGX         | C000198057 |

---

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

---

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

---

### MassMutual Select T. Rowe Price Retirement 2010 Fund (Series ID: S000061115)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class M5   | MMXCX         | C000198060 |
| Class M4   | MMXDX         | C000198061 |
| Class M3   | MMXEX         | C000198062 |
| Class I    | MMXBX         | C000198063 |

---

### MassMutual Select T. Rowe Price Retirement 2015 Fund (Series ID: S000061116)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMFHX         | C000198064 |
| Class M5   | MMFJX         | C000198065 |
| Class M4   | MMFKX         | C000198066 |
| Class M3   | MMFLX         | C000198067 |

---

### MassMutual Select T. Rowe Price Retirement 2020 Fund (Series ID: S000061117)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMTWX         | C000198068 |
| Class M5   | MMTTX         | C000198069 |
| Class M4   | MMTUX         | C000198070 |
| Class M3   | MMTVX         | C000198071 |

---

### MassMutual Select T. Rowe Price Retirement 2025 Fund (Series ID: S000061118)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMTFX         | C000198072 |
| Class M5   | MMTGX         | C000198073 |
| Class M4   | MMTHX         | C000198074 |
| Class M3   | MMTIX         | C000198075 |

---

### MassMutual Select T. Rowe Price Retirement 2030 Fund (Series ID: S000061119)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMTRX         | C000198076 |
| Class M5   | MMTOX         | C000198077 |
| Class M4   | MMTPX         | C000198078 |
| Class M3   | MMTQX         | C000198079 |

---

### MassMutual Select T. Rowe Price Retirement 2035 Fund (Series ID: S000061120)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMTJX         | C000198080 |
| Class M5   | MMTKX         | C000198081 |
| Class M4   | MMTLX         | C000198082 |
| Class M3   | MMTMX         | C000198083 |

---

### MassMutual Select T. Rowe Price Retirement 2040 Fund (Series ID: S000061121)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | MMFOX         | C000198084 |
| Class M5   | MMFPX         | C000198085 |
| Class M4   | MMFQX         | C000198086 |
| Class M3   | MMFRX         | C000198087 |

---

### MassMutual RetireSMART by JPMorgan 2065 Fund (Series ID: S000079614)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class R3             | MMZHX         | C000240776 |
| Class I              | MMZBX         | C000240777 |
| Class A              | MMZGX         | C000240778 |
| Class R4             | MMZFX         | C000240779 |
| Class R5             | MMZCX         | C000240780 |
| Service Class        | MMZDX         | C000240781 |
| Administrative Class | MMZEX         | C000240782 |

---

### MassMutual Select T. Rowe Price Retirement 2065 Fund (Series ID: S000079615)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class M5   | MMZLX         | C000240783 |
| Class M4   | MMZKX         | C000240784 |
| Class M3   | MMZJX         | C000240785 |
| Class I    | MMZIX         | C000240786 |

---

## Series and Classes Contracts Data

### MassMutual Blue Chip Growth Fund (Series ID: S000003658)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010176 | Class A              | MBCGX           |
| C000010177 | Administrative Class | MBCLX           |
| C000010178 | Class R3             | MBCNX           |
| C000010179 | Class R5             | MBCSX           |
| C000010180 | Service Class        | MBCYX           |
| C000140351 | Class I              | MBCZX           |
| C000140352 | Class R4             | MBGFX           |
| C000240788 | Class Y              | MMZMX           |

### MM S&P 500 Index Fund (Series ID: S000003661)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010191 | Class R4             | MIEAX           |
| C000010193 | Class R3             | MMINX           |
| C000010194 | Service Class        | MMIEX           |
| C000010195 | Administrative Class | MIEYX           |
| C000010196 | Class R5             | MIEZX           |
| C000108421 | Class I              | MMIZX           |
| C000140354 | Class A              | MMFFX           |

### MassMutual Mid Cap Growth Fund (Series ID: S000003665)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010212 | Class A              | MEFAX           |
| C000010213 | Administrative Class | MMELX           |
| C000010214 | Class R3             | MEFNX           |
| C000010215 | Class R5             | MGRFX           |
| C000010216 | Service Class        | MEFYX           |
| C000093669 | Class I              | MEFZX           |
| C000140357 | Class R4             | MEFFX           |
| C000240790 | Class Y              | MMNGX           |

### MassMutual Overseas Fund (Series ID: S000003667)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010222 | Class A              | MOSAX           |
| C000010223 | Administrative Class | MOSLX           |
| C000010224 | Class R3             | MOSNX           |
| C000010225 | Class R5             | MOSSX           |
| C000010226 | Service Class        | MOSYX           |
| C000093670 | Class I              | MOSZX           |
| C000140360 | Class R4             | MOSFX           |
| C000240792 | Class Y              | MMOJX           |

### 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              | MMNJX           |

### 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 RetireSMART by JPMorgan 2020 Fund (Series ID: S000003675)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010262 | Class A              | MRTAX           |
| C000010264 | Class R3             | MRTNX           |
| C000010265 | Service Class        | MRTSX           |
| C000010266 | Administrative Class | MRTYX           |
| C000140371 | Class I              | MRTDX           |
| C000140372 | Class R5             | MRTBX           |
| C000140373 | Class R4             | MRTHX           |

### MassMutual RetireSMART by JPMorgan 2030 Fund (Series ID: S000003676)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010267 | Class A              | MRYAX           |
| C000010269 | Class R3             | MRYNX           |
| C000010270 | Service Class        | MRYSX           |
| C000010271 | Administrative Class | MRYYX           |
| C000140374 | Class I              | MRYUX           |
| C000140375 | Class R5             | MRYTX           |
| C000140376 | Class R4             | MRYZX           |

### MassMutual RetireSMART by JPMorgan 2040 Fund (Series ID: S000003677)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010272 | Class A              | MRFAX           |
| C000010274 | Class R3             | MFRNX           |
| C000010275 | Service Class        | MFRSX           |
| C000010276 | Administrative Class | MRFYX           |
| C000140377 | Class I              | MRFUX           |
| C000140378 | Class R5             | MRFTX           |
| C000140379 | Class R4             | MRFZX           |

### MassMutual RetireSMART by JPMorgan In Retirement Fund (Series ID: S000003678)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010277 | Class A              | MRDAX           |
| C000010279 | Class R3             | MDRNX           |
| C000010280 | Service Class        | MDRSX           |
| C000010281 | Administrative Class | MDRYX           |
| C000140380 | Class I              | MDRVX           |
| C000140381 | Class R5             | MDRTX           |
| C000140382 | Class R4             | MDRZX           |

### 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 Small Cap Value Equity Fund (Series ID: S000012476)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000033919 | Service Class        | MMQYX           |
| C000033920 | Class A              | MMQAX           |
| C000033921 | Administrative Class | MMQLX           |
| C000033923 | Class R5             | MMQSX           |
| C000140386 | Class I              | MMQIX           |
| C000140387 | Class R4             | MMQFX           |
| C000140388 | Class R3             | MMQTX           |
| C000240798 | Class Y              | MMNKX           |

### MassMutual Mid Cap Value Fund (Series ID: S000013194)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000035486 | Class A              | MLUAX           |
| C000035487 | Administrative Class | MLULX           |
| C000035488 | Class R3             | MLUNX           |
| C000035489 | Class R5             | MLUSX           |
| C000035490 | Service Class        | MLUYX           |
| C000108422 | Class I              | MLUZX           |
| C000140389 | Class R4             | MLUFX           |
| C000240799 | Class Y              | MMNHX           |

### MassMutual RetireSMART by JPMorgan 2050 Fund (Series ID: S000020009)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000056105 | Class R3             | MMRNX           |
| C000056106 | Service Class        | MMTSX           |
| C000056107 | Administrative Class | MMRYX           |
| C000056109 | Class A              | MMARX           |
| C000140393 | Class I              | MMRUX           |
| C000140394 | Class R5             | MMRTX           |
| C000140395 | Class R4             | MMRZX           |

### MassMutual RetireSMART by JPMorgan 2025 Fund (Series ID: S000028351)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000086630 | Class A              | MMSDX           |
| C000086632 | Service Class        | MMISX           |
| C000086633 | Administrative Class | MMIYX           |
| C000140403 | Class I              | MMNUX           |
| C000140404 | Class R5             | MMNTX           |
| C000140405 | ClassR4              | MMNZX           |
| C000140406 | Class R3             | MMNRX           |

### MassMutual RetireSMART by JPMorgan 2035 Fund (Series ID: S000028352)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000086634 | Class A              | MMXAX           |
| C000086636 | Service Class        | MMXSX           |
| C000086637 | Administrative Class | MMXYX           |
| C000140407 | Class I              | MMXUX           |
| C000140408 | Class R5             | MMXTX           |
| C000140409 | Class R4             | MMXZX           |
| C000140410 | Class R3             | MMXNX           |

### MassMutual RetireSMART by JPMorgan 2045 Fund (Series ID: S000028353)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000086639 | Class A              | MMKAX           |
| C000086641 | Service Class        | MMKSX           |
| C000086642 | Administrative Class | MMKYX           |
| C000140411 | Class I              | MMKUX           |
| C000140412 | Class R5             | MMKTX           |
| C000140413 | Class R4             | MMKZX           |
| C000140414 | Class R3             | MMKNX           |

### 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 20/80 Allocation Fund (Series ID: S000032893)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101523 | Class R5             | MRCSX           |
| C000101524 | Service Class        | MRCYX           |
| C000101525 | Administrative Class | MRCLX           |
| C000101526 | Class A              | MCTAX           |
| C000140416 | Class I              | MRCUX           |
| C000140417 | Class R4             | MRCZX           |
| C000140418 | Class R3             | MRCVX           |
| C000240801 | Class Y              | MMNOX           |

### MassMutual 40/60 Allocation Fund (Series ID: S000032894)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101527 | Class R5             | MROSX           |
| C000101528 | Service Class        | MRMYX           |
| C000101529 | Administrative Class | MRMLX           |
| C000101530 | Class A              | MRMAX           |
| C000140419 | Class I              | MRMUX           |
| C000140420 | Class R4             | MRMZX           |
| C000140421 | Class R3             | MRMTX           |
| C000240802 | Class Y              | MMNPX           |

### MassMutual 60/40 Allocation Fund (Series ID: S000032895)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101531 | Service Class        | MROYX           |
| C000101532 | Administrative Class | MRSLX           |
| C000101533 | Class A              | MOGAX           |
| C000101534 | Class R5             | MRSSX           |
| C000140422 | Class I              | MROUX           |
| C000140423 | Class R4             | MROZX           |
| C000140424 | Class R3             | MROTX           |
| C000240803 | Class Y              | MMNQX           |

### MassMutual 80/20 Allocation Fund (Series ID: S000032896)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000101535 | Class R5             | MRRSX           |
| C000101536 | Service Class        | MRGYX           |
| C000101537 | Administrative Class | MRGLX           |
| C000101538 | Class A              | MRRAX           |
| C000140425 | Class I              | MRGUX           |
| C000140426 | Class R4             | MRGZX           |
| C000140427 | Class R3             | MRGVX           |
| C000240804 | Class Y              | MMNSX           |

### MassMutual RetireSMART by JPMorgan 2055 Fund (Series ID: S000042052)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000130636 | Service Class        | MMWSX           |
| C000130637 | Administrative Class | MMWYX           |
| C000130639 | Class A              | MMWAX           |
| C000140434 | Class I              | MMWZX           |
| C000140435 | Class R5             | MMWUX           |
| C000140436 | Class R4             | MMWEX           |
| C000140437 | Class R3             | MMWTX           |

### MassMutual RetireSMART by JPMorgan 2060 Fund (Series ID: S000051694)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000162675 | Class I              | MMWIX           |
| C000162676 | Class R5             | MMWHX           |
| C000162677 | Service Class        | MMWGX           |
| C000162678 | Administrative Class | MMWFX           |
| C000162679 | Class A              | MMWDX           |
| C000162680 | Class R4             | MMWCX           |
| C000162681 | Class R3             | MMWBX           |

### MM Equity Asset Fund (Series ID: S000055552)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000174852 | Class I      | MSEJX           |

### MassMutual Select T. Rowe Price Retirement Balanced Fund (Series ID: S000061101)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198028 | Class I      | MMBVX           |
| C000198029 | Class M5     | MMBWX           |
| C000198030 | Class M4     | MMBYX           |
| C000198031 | Class M3     | MMBZX           |

### MassMutual Select T. Rowe Price Retirement 2045 Fund (Series ID: S000061102)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198032 | Class I      | MMFTX           |
| C000198033 | Class M5     | MMFUX           |
| C000198034 | Class M4     | MMFWX           |
| C000198035 | Class M3     | MMFZX           |

### MassMutual Select T. Rowe Price Retirement 2050 Fund (Series ID: S000061103)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198036 | Class I      | MMDDX           |
| C000198037 | Class M5     | MMDFX           |
| C000198038 | Class M4     | MMDGX           |
| C000198039 | Class M3     | MMDHX           |

### MassMutual Select T. Rowe Price Retirement 2055 Fund (Series ID: S000061104)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198040 | Class I      | MMDJX           |
| C000198041 | Class M5     | MMDKX           |
| C000198042 | Class M4     | MMDMX           |
| C000198043 | Class M3     | MMDOX           |

### MassMutual Select T. Rowe Price Retirement 2060 Fund (Series ID: S000061105)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198044 | Class I      | MMSKX           |
| C000198045 | Class M5     | MMSOX           |
| C000198046 | Class M4     | MMSGX           |
| C000198047 | Class M3     | MMSVX           |

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

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

### MassMutual Select T. Rowe Price Large Cap Blend Fund (Series ID: S000061108)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198050 | Class I      | MMLRX           |

### MassMutual Select T. Rowe Price Real Assets Fund (Series ID: S000061110)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198052 | Class I      | MMRFX           |

### MassMutual Select T. Rowe Price Small and Mid Cap Blend Fund (Series ID: S000061111)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198053 | Class I      | MMBUX           |

### MassMutual Select T. Rowe Price Retirement 2005 Fund (Series ID: S000061112)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198054 | Class I      | MMFBX           |
| C000198055 | Class M5     | MMFDX           |
| C000198056 | Class M4     | MMFEX           |
| C000198057 | Class M3     | MMFGX           |

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

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

### MassMutual Select T. Rowe Price Retirement 2010 Fund (Series ID: S000061115)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198060 | Class M5     | MMXCX           |
| C000198061 | Class M4     | MMXDX           |
| C000198062 | Class M3     | MMXEX           |
| C000198063 | Class I      | MMXBX           |

### MassMutual Select T. Rowe Price Retirement 2015 Fund (Series ID: S000061116)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198064 | Class I      | MMFHX           |
| C000198065 | Class M5     | MMFJX           |
| C000198066 | Class M4     | MMFKX           |
| C000198067 | Class M3     | MMFLX           |

### MassMutual Select T. Rowe Price Retirement 2020 Fund (Series ID: S000061117)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198068 | Class I      | MMTWX           |
| C000198069 | Class M5     | MMTTX           |
| C000198070 | Class M4     | MMTUX           |
| C000198071 | Class M3     | MMTVX           |

### MassMutual Select T. Rowe Price Retirement 2025 Fund (Series ID: S000061118)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198072 | Class I      | MMTFX           |
| C000198073 | Class M5     | MMTGX           |
| C000198074 | Class M4     | MMTHX           |
| C000198075 | Class M3     | MMTIX           |

### MassMutual Select T. Rowe Price Retirement 2030 Fund (Series ID: S000061119)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198076 | Class I      | MMTRX           |
| C000198077 | Class M5     | MMTOX           |
| C000198078 | Class M4     | MMTPX           |
| C000198079 | Class M3     | MMTQX           |

### MassMutual Select T. Rowe Price Retirement 2035 Fund (Series ID: S000061120)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198080 | Class I      | MMTJX           |
| C000198081 | Class M5     | MMTKX           |
| C000198082 | Class M4     | MMTLX           |
| C000198083 | Class M3     | MMTMX           |

### MassMutual Select T. Rowe Price Retirement 2040 Fund (Series ID: S000061121)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198084 | Class I      | MMFOX           |
| C000198085 | Class M5     | MMFPX           |
| C000198086 | Class M4     | MMFQX           |
| C000198087 | Class M3     | MMFRX           |

### MassMutual RetireSMART by JPMorgan 2065 Fund (Series ID: S000079614)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000240776 | Class R3             | MMZHX           |
| C000240777 | Class I              | MMZBX           |
| C000240778 | Class A              | MMZGX           |
| C000240779 | Class R4             | MMZFX           |
| C000240780 | Class R5             | MMZCX           |
| C000240781 | Service Class        | MMZDX           |
| C000240782 | Administrative Class | MMZEX           |

### MassMutual Select T. Rowe Price Retirement 2065 Fund (Series ID: S000079615)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000240783 | Class M5     | MMZLX           |
| C000240784 | Class M4     | MMZKX           |
| C000240785 | Class M3     | MMZJX           |
| C000240786 | Class I      | MMZIX           |

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 0000916053

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** N-1A

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** MassMutual Select Funds

- **Address:** 1295 State Street, Springfield, MA 01111

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** 811-08274

   **Securities Act File Number:** 033-73824

**4(a). Last day of fiscal year for which this Form is filed:** 09/30/2025

**4(b). Check box if this Form is being filed late:** [ ]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [ ]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $6407244216.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $22068052366.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $9123626165.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $31191678531.00

- **(v) Net sales:** $0.00

- **(vi) Redemption credits available for use in future years:** $-24784434315.00

- **(vii) Multiplier for determining registration fee:** 0.0001381

- **(viii) Registration fee due:** $0.00

**Signatures**

**Name and Title:** Assistant Treasurer

**Date:** 12/23/2025

**Signature:** Justin Do Carmo