| MassMutual Blue Chip Growth Fund | Class A | MBCGX | — |
| MassMutual Blue Chip Growth Fund | Administrative Class | MBCLX | — |
| MassMutual Blue Chip Growth Fund | Class R3 | MBCNX | — |
| MassMutual Blue Chip Growth Fund | Class R5 | MBCSX | — |
| MassMutual Blue Chip Growth Fund | Service Class | MBCYX | — |
| MassMutual Blue Chip Growth Fund | Class I | MBCZX | — |
| MassMutual Blue Chip Growth Fund | Class R4 | MBGFX | — |
| MassMutual Blue Chip Growth Fund | Class Y | MMZMX | — |
| 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 | — |
| MM S&P 500 Index Fund | Class R5 | MIEZX | — |
| MM S&P 500 Index Fund | Class I | MMIZX | — |
| MM S&P 500 Index Fund | Class A | MMFFX | — |
| MassMutual Mid Cap Growth Fund | Class A | MEFAX | — |
| MassMutual Mid Cap Growth Fund | Administrative Class | MMELX | — |
| MassMutual Mid Cap Growth Fund | Class R3 | MEFNX | — |
| MassMutual Mid Cap Growth Fund | Class R5 | MGRFX | — |
| MassMutual Mid Cap Growth Fund | Service Class | MEFYX | — |
| MassMutual Mid Cap Growth Fund | Class I | MEFZX | — |
| MassMutual Mid Cap Growth Fund | Class R4 | MEFFX | — |
| MassMutual Mid Cap Growth Fund | Class Y | MMNGX | — |
| MassMutual Overseas Fund | Class A | MOSAX | — |
| MassMutual Overseas Fund | Administrative Class | MOSLX | — |