| MassMutual Select Growth Opportunities Fund | Class A | MMAAX | — |
| MassMutual Select Growth Opportunities Fund | Administrative Class | MAGLX | — |
| MassMutual Select Growth Opportunities Fund | Class R3 | MMANX | — |
| MassMutual Select Growth Opportunities Fund | Class R5 | MGRSX | — |
| MassMutual Select Growth Opportunities Fund | Service Class | MAGYX | — |
| MassMutual Select Growth Opportunities Fund | Class I | MMAZX | — |
| MassMutual Select Growth Opportunities Fund | Class R4 | MMGFX | — |
| MassMutual Select Blue Chip Growth Fund | Class A | MBCGX | — |
| MassMutual Select Blue Chip Growth Fund | Administrative Class | MBCLX | — |
| MassMutual Select Blue Chip Growth Fund | Class R3 | MBCNX | — |
| MassMutual Select Blue Chip Growth Fund | Class R5 | MBCSX | — |
| MassMutual Select Blue Chip Growth Fund | Service Class | MBCYX | — |
| MassMutual Select Blue Chip Growth Fund | Class I | MBCZX | — |
| MassMutual Select Blue Chip Growth Fund | Class R4 | MBGFX | — |
| MassMutual Select Fundamental Value Fund | Class A | MFUAX | — |
| MassMutual Select Fundamental Value Fund | Administrative Class | MFULX | — |
| MassMutual Select Fundamental Value Fund | Class R3 | MFUNX | — |
| MassMutual Select Fundamental Value Fund | Class R5 | MVUSX | — |
| MassMutual Select Fundamental Value Fund | Service Class | MFUYX | — |
| MassMutual Select Fundamental Value Fund | Class I | MFUZX | — |
| MassMutual Select Fundamental Value Fund | Class R4 | MFUFX | — |
| MM S&P 500 Index Fund | Class R4 | MIEAX | — |
| MM S&P 500 Index Fund | Class R3 | MMINX | — |
| MM S&P 500 Index Fund | Service Class | MMIEX | — |
| MM S&P 500 Index Fund | Administrative Class | MIEYX | — |