| Category | Fund Name | Class | Net Assets ($ M)* | 2025 | 2024 | 2023 |
|---|---|---|---|---|---|---|
| Small-Cap-Core | MassMutual Premier Small Cap Opportunities Fund + | Class A Shares | 312 | -3.9 | 3.3 | 11.8 |
| Large-Cap-Growth | MassMutual Select Blue Chip Growth Fund + | Class A Shares | 2400 | -5.7 | 14.6 | 17.4 |
| Small-Cap-Core | MM Russell 2000 Small Cap Index Fund + | Class A Shares | 225 | 0 | 0 | 0 |
| Large-Cap-Value | MassMutual Select Diversified Value Fund + | Class A Shares | 308 | 2.5 | -16.9 | 4 |
| Mid-Cap-Core | MM S&P Mid Cap Index Fund + | Class A Shares | 382 | 0 | 0 | 0 |
| Mid-Cap-Growth | MassMutual Select Mid Cap Growth Fund + | Class A Shares | 5300 | -9.8 | -7.9 | 10.3 |
| Multi-Cap-Value | MassMutual Premier Disciplined Value Fund + | Class A Shares | 74 | -12.5 | -1 | 2.6 |
| Large-Cap-Value | MassMutual Select Fundamental Value Fund + | Class A Shares | 472 | 0 | -0.4 | 1.3 |
| Mid-Cap-Value | MassMutual Select Mid-Cap Value Fund + | Class A Shares | 110 | -1.1 | -1.7 | 6.8 |
| Large-Cap-Growth | MassMutual Select Growth Opportunities Fund + | Class A Shares | 236 | 0 | -24.1 | 47.7 |
| Small-Cap-Growth | MassMutual Select Small Cap Growth Equity Fund + | Class A Shares | 666 | -2.7 | 5.9 | 16.4 |
| Small-Cap-Value | MassMutual Select Small Cap Value Equity Fund + | Class A Shares | 52 | -11.3 | -4.1 | -1 |
| Small-Cap-Value | MassMutual Select Small Company Value Fund + | Class A Shares | 213 | -13.4 | 8.3 | 3.7 |
| Large-Cap-Growth | MassMutual Select Fundamental Growth Fund + | Class A Shares | 28 | 0 | -16.2 | 26.7 |
| Large-Cap-Growth | MassMutual Premier Disciplined Growth Fund + | Class A Shares | 148 | -12.8 | 13.9 | 32.7 |
| Large-Cap-Core | MassMutual Premier Main Street Fund + | Class A Shares | 71 | 0 | -43.3 | 10.5 |
| Large-Cap-Core | MassMutual Select Equity Opportunities Fund + | Class A Shares | 631 | -2.5 | -4.4 | 5.2 |
| Mixed-Regions | MassMutual Premier Strategic Emerging Markets Fund + | Class A Shares | 119 | -1.4 | -1.4 | 9.5 |
| Multi-Cap-Core | MassMutual Premier International Equity Fund + | Class A Shares | 124 | 4 | -7.4 | 7.6 |
| Multi-Cap-Core | MM MSCI EAFE International Index Fund + | Class A Shares | 160 | 0 | 0 | 0 |
| Multi-Cap-Core | MassMutual Select Overseas Fund + | Class A Shares | 457 | 5.3 | -5.4 | 15.6 |
| Multi-Cap-Core | MassMutual Global Fund + | Class A Shares | 206 | -2.1 | -0.9 | 1.5 |
| Large-Cap-Growth | MassMutual Premier Disciplined Growth Fund | Service Class Shares | 148 | -10.7 | 15.5 | 33.5 |
| Multi-Cap-Value | MassMutual Premier Disciplined Value Fund | Service Class Shares | 74 | -11.7 | -0.8 | 2.7 |
| Large-Cap-Growth | MassMutual Select Growth Opportunities Fund | Administrative Class Shares | 236 | 0 | -11.8 | 47.7 |
| Large-Cap-Growth | MassMutual Select Growth Opportunities Fund | Service Class Shares | 236 | 0 | -7.7 | 47.8 |
| Large-Cap-Growth | MassMutual Select Blue Chip Growth Fund | Administrative Class Shares | 2400 | -8.3 | 16.9 | 20.4 |
| Large-Cap-Growth | MassMutual Select Blue Chip Growth Fund | Class R3 Shares | 2400 | -6.3 | 10.7 | 12.6 |
| Large-Cap-Growth | MassMutual Select Blue Chip Growth Fund | Class R5 Shares | 2400 | -18.2 | 18.2 | 21.9 |
| Large-Cap-Growth | MassMutual Select Blue Chip Growth Fund | Service Class Shares | 2400 | -7 | 17.7 | 21.3 |
| Large-Cap-Growth | MassMutual Select Blue Chip Growth Fund | Class I Shares | 2400 | -0.6 | 18.5 | 22.1 |
| Large-Cap-Growth | MassMutual Select Blue Chip Growth Fund | Class R4 Shares | 2400 | -12 | 14.8 | 17.6 |
| Small-Cap-Core | MassMutual Premier Small Cap Opportunities Fund | Class R3 Shares | 312 | -14.8 | 3 | 11.4 |
| Small-Cap-Core | MM Russell 2000 Small Cap Index Fund | Class R4 Shares | 225 | 0 | 0 | 0 |
| Small-Cap-Core | MM Russell 2000 Small Cap Index Fund | Class R5 Shares | 225 | 0 | 0 | 0 |
| Small-Cap-Core | MM Russell 2000 Small Cap Index Fund | Service Class Shares | 225 | 0 | 0 | 0 |
| Small-Cap-Core | MM Russell 2000 Small Cap Index Fund | Class R3 Shares | 225 | 0 | 0 | 0 |
| Small-Cap-Core | MM Russell 2000 Small Cap Index Fund | Administrative Class Shares | 225 | 0 | 0 | 0 |
| Small-Cap-Core | MM Russell 2000 Small Cap Index Fund | Class I Shares | 225 | 0 | 0 | 0 |
| Large-Cap-Value | MassMutual Select Diversified Value Fund | Class I Shares | 308 | -5.9 | -16.9 | 3.9 |
| Large-Cap-Value | MassMutual Select Diversified Value Fund | Administrative Class Shares | 308 | -1 | -16.6 | 4 |
| Large-Cap-Value | MassMutual Select Diversified Value Fund | Class R4 Shares | 308 | -3 | -17.5 | 3.8 |
| Mid-Cap-Core | MM S&P Mid Cap Index Fund | Class R4 Shares | 382 | 0 | 0 | 0 |
| Mid-Cap-Core | MM S&P Mid Cap Index Fund | Class R5 Shares | 382 | 0 | 0 | 0 |
| Mid-Cap-Core | MM S&P Mid Cap Index Fund | Service Class Shares | 382 | 0 | 0 | 0 |
| Mid-Cap-Core | MM S&P Mid Cap Index Fund | Class R3 Shares | 382 | 0 | 0 | 0 |
| Mid-Cap-Core | MM S&P Mid Cap Index Fund | Class I Shares | 382 | 0 | 0 | 0 |
| Large-Cap-Value | MassMutual Select Diversified Value Fund | Class R3 Shares | 308 | 4.8 | -17.2 | 4.1 |
| Large-Cap-Value | MassMutual Select Diversified Value Fund | Class R5 Shares | 308 | -2.9 | -16.8 | 3.9 |
| Large-Cap-Value | MassMutual Select Diversified Value Fund | Service Class Shares | 308 | -1.7 | -16.9 | 3.9 |
| Mid-Cap-Growth | MassMutual Select Mid Cap Growth Fund | Class R4 Shares | 5300 | -11.6 | -7.5 | 10.6 |
| Mid-Cap-Growth | MassMutual Select Mid Cap Growth Fund | Class R3 Shares | 5300 | -11.6 | -12 | 8.6 |
| Mid-Cap-Growth | MassMutual Select Mid Cap Growth Fund | Service Class Shares | 5300 | -13.4 | -3.4 | 12.7 |
| Mid-Cap-Growth | MassMutual Select Mid Cap Growth Fund | Class I Shares | 5300 | -8.2 | -2.4 | 13.3 |
| Multi-Cap-Value | MassMutual Premier Disciplined Value Fund | Class R5 Shares | 74 | -11.5 | -0.5 | 2.8 |
| Large-Cap-Growth | MassMutual Select Fundamental Growth Fund | Class R4 Shares | 28 | 0 | -16.9 | 27 |
| Large-Cap-Value | MassMutual Select Fundamental Value Fund | Class R4 Shares | 472 | 0 | -0.9 | 1 |
| Large-Cap-Value | MassMutual Select Fundamental Value Fund | Administrative Class Shares | 472 | 0 | 0 | 1.7 |
| Large-Cap-Value | MassMutual Select Fundamental Value Fund | Class R3 Shares | 472 | 0 | -0.9 | 0.9 |
| Large-Cap-Value | MassMutual Select Fundamental Value Fund | Service Class Shares | 472 | 0 | -0.1 | 1.3 |
| Large-Cap-Value | MassMutual Select Fundamental Value Fund | Class I Shares | 472 | 0 | 0 | 1.3 |
| Mid-Cap-Growth | MassMutual Select Mid Cap Growth Fund | Class R5 Shares | 5300 | -6.2 | -2.7 | 13.1 |
| Large-Cap-Growth | MassMutual Select Growth Opportunities Fund | Class R5 Shares | 236 | 0 | -5.4 | 48 |
| Mid-Cap-Value | MassMutual Select Mid-Cap Value Fund | Class R4 Shares | 110 | -1.1 | -2.3 | 6.7 |
| Mid-Cap-Value | MassMutual Select Mid-Cap Value Fund | Administrative Class Shares | 110 | -0.9 | -1 | 6.7 |
| Mid-Cap-Value | MassMutual Select Mid-Cap Value Fund | Class R3 Shares | 110 | -1.2 | -2.3 | 6.7 |
| Mid-Cap-Value | MassMutual Select Mid-Cap Value Fund | Class R5 Shares | 110 | -1 | -1.9 | 6.7 |
| Mid-Cap-Value | MassMutual Select Mid-Cap Value Fund | Service Class Shares | 110 | -1.1 | -2.1 | 6.7 |
| Mid-Cap-Value | MassMutual Select Mid-Cap Value Fund | Class I Shares | 110 | -1.2 | -2.1 | 6.7 |
| Large-Cap-Growth | MassMutual Select Growth Opportunities Fund | Class R3 Shares | 236 | 0 | -54.1 | 47.6 |
| Large-Cap-Growth | MassMutual Select Growth Opportunities Fund | Class I Shares | 236 | 0 | -4.2 | 47.7 |
| Large-Cap-Growth | MassMutual Select Growth Opportunities Fund | Class R4 Shares | 236 | 0 | -22.5 | 47.3 |
| Small-Cap-Value | MassMutual Select Small Cap Value Equity Fund | Class R4 Shares | 52 | -11.1 | -4.2 | -1 |
| Small-Cap-Value | MassMutual Select Small Cap Value Equity Fund | Class I Shares | 52 | -10 | -2.8 | 0.4 |
| Small-Cap-Value | MassMutual Select Small Cap Value Equity Fund | Administrative Class Shares | 52 | -10.3 | -3 | -0.2 |
| Small-Cap-Value | MassMutual Select Small Cap Value Equity Fund | Class R5 Shares | 52 | -10.1 | -3.1 | 0.4 |
| Small-Cap-Value | MassMutual Select Small Cap Value Equity Fund | Class R3 Shares | 52 | -11.6 | -4.7 | -1.8 |
| Small-Cap-Value | MassMutual Select Small Cap Value Equity Fund | Service Class Shares | 52 | -10 | -3.1 | 0.1 |
| Small-Cap-Value | MassMutual Select Small Company Value Fund | Class R4 Shares | 213 | -17.8 | 8.6 | 3.4 |
| Small-Cap-Value | MassMutual Select Small Company Value Fund | Service Class Shares | 213 | -11.5 | 8.4 | 4.2 |
| Small-Cap-Value | MassMutual Select Small Company Value Fund | Administrative Class Shares | 213 | -13.3 | 8.4 | 4.1 |
| Small-Cap-Core | MassMutual Premier Small Cap Opportunities Fund | Class R4 Shares | 312 | -10.3 | 3.2 | 11.8 |
| Large-Cap-Growth | MassMutual Select Fundamental Growth Fund | Class R5 Shares | 28 | 0 | -9.7 | 27.5 |
| Large-Cap-Growth | MassMutual Select Fundamental Growth Fund | Administrative Class Shares | 28 | 0 | -12.3 | 27 |
| Large-Cap-Growth | MassMutual Select Fundamental Growth Fund | Class R3 Shares | 28 | 0 | -27.2 | 27.2 |
| Large-Cap-Growth | MassMutual Select Fundamental Growth Fund | Service Class Shares | 28 | 0 | -10.8 | 27.1 |
| Large-Cap-Growth | MassMutual Select Fundamental Growth Fund | Class I Shares | 28 | 0 | -9.7 | 27.7 |
| Large-Cap-Growth | MassMutual Premier Disciplined Growth Fund | Class R4 Shares | 148 | -6.4 | 13.6 | 32.6 |
| Large-Cap-Growth | MassMutual Premier Disciplined Growth Fund | Class I Shares | 148 | -1.1 | 15.7 | 33.6 |
| Large-Cap-Growth | MassMutual Premier Disciplined Growth Fund | Class R3 Shares | 148 | -11.2 | 13 | 32.4 |
| Large-Cap-Growth | MassMutual Premier Disciplined Growth Fund | Administrative Class Shares | 148 | -6.4 | 15.9 | 33.5 |
| Large-Cap-Growth | MassMutual Premier Disciplined Growth Fund | Class R5 Shares | 148 | -6.2 | 15.6 | 33.6 |
| Multi-Cap-Value | MassMutual Premier Disciplined Value Fund | Administrative Class Shares | 74 | -11.1 | -0.2 | 2.9 |
| Multi-Cap-Value | MassMutual Premier Disciplined Value Fund | Class R3 Shares | 74 | -11.7 | -0.5 | 3.3 |
| Multi-Cap-Value | MassMutual Premier Disciplined Value Fund | Class R4 Shares | 74 | -12 | -1 | 4.1 |
| Multi-Cap-Value | MassMutual Premier Disciplined Value Fund | Class I Shares | 74 | -11.6 | -0.6 | 2.8 |
| Small-Cap-Core | MassMutual Premier Small Cap Opportunities Fund | Class R5 Shares | 312 | -7.7 | 3.8 | 12.2 |
| Small-Cap-Core | MassMutual Premier Small Cap Opportunities Fund | Administrative Class Shares | 312 | -12.2 | 3.7 | 12 |
| Small-Cap-Growth | MassMutual Select Small Cap Growth Equity Fund | Service Class Shares | 666 | -8.3 | 9.1 | 16.8 |
| Small-Cap-Growth | MassMutual Select Small Cap Growth Equity Fund | Class R4 Shares | 666 | -11.1 | 6.1 | 16.4 |
| Small-Cap-Growth | MassMutual Select Small Cap Growth Equity Fund | Administrative Class Shares | 666 | -11.4 | 8.3 | 16.7 |
| Small-Cap-Growth | MassMutual Select Small Cap Growth Equity Fund | Class R3 Shares | 666 | -8 | 2.4 | 16.2 |
| Small-Cap-Growth | MassMutual Select Small Cap Growth Equity Fund | Class R5 Shares | 666 | -9.4 | 9.9 | 16.9 |
| Small-Cap-Growth | MassMutual Select Small Cap Growth Equity Fund | Class I Shares | 666 | -18.5 | 10.2 | 16.9 |
| Small-Cap-Core | MassMutual Premier Small Cap Opportunities Fund | Class I Shares | 312 | -10.1 | 3.8 | 12.4 |
| Small-Cap-Value | MassMutual Select Small Company Value Fund | Class R3 Shares | 213 | -2.4 | 7.7 | 2.6 |
| Small-Cap-Value | MassMutual Select Small Company Value Fund | Class R5 Shares | 213 | -10.4 | 8.5 | 4.3 |
| Small-Cap-Core | MassMutual Premier Small Cap Opportunities Fund | Service Class Shares | 312 | -4 | 3.9 | 12.2 |
| Small-Cap-Value | MassMutual Select Small Company Value Fund | Class I Shares | 213 | -8 | 8.3 | 4.2 |
| Large-Cap-Value | MassMutual Select Fundamental Value Fund | Class R5 Shares | 472 | 0 | 0.1 | 1.5 |
| Large-Cap-Core | MassMutual Premier Main Street Fund | Administrative Class Shares | 71 | 0 | -41.4 | 11 |
| Large-Cap-Core | MassMutual Premier Main Street Fund | Class I Shares | 71 | 0 | -40.9 | 11.3 |
| Large-Cap-Core | MassMutual Premier Main Street Fund | Class R3 Shares | 71 | 0 | -43.3 | 10.2 |
| Large-Cap-Core | MassMutual Premier Main Street Fund | Class R4 Shares | 71 | 0 | -44.3 | 10.5 |
| Large-Cap-Core | MassMutual Premier Main Street Fund | Class R5 Shares | 71 | 0 | -41.1 | 11.2 |
| Large-Cap-Core | MassMutual Premier Main Street Fund | Service Class Shares | 71 | 0 | -37.1 | 11.8 |
| Large-Cap-Core | MassMutual Select Equity Opportunities Fund | Administrative Class Shares | 631 | -9.9 | -3.3 | 5.6 |
| Large-Cap-Core | MassMutual Select Equity Opportunities Fund | Class I Shares | 631 | -2.4 | -2.6 | 5.9 |
| Large-Cap-Core | MassMutual Select Equity Opportunities Fund | Class R3 Shares | 631 | -3.3 | -6.8 | 4.3 |
| Large-Cap-Core | MassMutual Select Equity Opportunities Fund | Class R4 Shares | 631 | -1.2 | -4.9 | 4.9 |
| Large-Cap-Core | MassMutual Select Equity Opportunities Fund | Class R5 Shares | 631 | 2.2 | -2.4 | 5.9 |
| Large-Cap-Core | MassMutual Select Equity Opportunities Fund | Service Class Shares | 631 | -1 | -2.9 | 5.8 |
| Mixed-Regions | MassMutual Premier Strategic Emerging Markets Fund | Administrative Class Shares | 119 | -0.6 | -1.5 | 9.8 |
| Mixed-Regions | MassMutual Premier Strategic Emerging Markets Fund | Class I Shares | 119 | -0.6 | -1.4 | 10 |
| Mixed-Regions | MassMutual Premier Strategic Emerging Markets Fund | Class R3 Shares | 119 | -0.6 | -1.9 | 9.4 |
| Mixed-Regions | MassMutual Premier Strategic Emerging Markets Fund | Class R4 Shares | 119 | -0.6 | -1.6 | 9.6 |
| Mixed-Regions | MassMutual Premier Strategic Emerging Markets Fund | Class R5 Shares | 119 | -0.6 | -1.5 | 10.1 |
| Mixed-Regions | MassMutual Premier Strategic Emerging Markets Fund | Service Class Shares | 119 | -0.6 | -1.5 | 10 |
| Multi-Cap-Core | MassMutual Premier International Equity Fund | Administrative Class Shares | 124 | 4 | -7.1 | 7.9 |
| Multi-Cap-Core | MassMutual Premier International Equity Fund | Class I Shares | 124 | 5.9 | -7.1 | 7.8 |
| Multi-Cap-Core | MassMutual Premier International Equity Fund | Class R3 Shares | 124 | 8.2 | -7.5 | 7.4 |
| Multi-Cap-Core | MassMutual Premier International Equity Fund | Class R4 Shares | 124 | 11.4 | -7.6 | 7.6 |
| Multi-Cap-Core | MassMutual Premier International Equity Fund | Class R5 Shares | 124 | 7.6 | -7.1 | 7.8 |
| Multi-Cap-Core | MassMutual Premier International Equity Fund | Service Class Shares | 124 | 11 | -7.2 | 7.8 |
| Multi-Cap-Core | MassMutual Select T Rowe Price International Equity Fund | Class I Shares | 821 | 9.4 | -3.5 | 12.6 |
| Multi-Cap-Core | MM MSCI EAFE International Index Fund | Administrative Class Shares | 160 | 0 | 0 | 0 |
| Multi-Cap-Core | MM MSCI EAFE International Index Fund | Class I Shares | 160 | 0 | 0 | 0 |
| Multi-Cap-Core | MM MSCI EAFE International Index Fund | Class R3 Shares | 160 | 0 | 0 | 0 |
| Multi-Cap-Core | MM MSCI EAFE International Index Fund | Class R4 Shares | 160 | 0 | 0 | 0 |
| Multi-Cap-Core | MM MSCI EAFE International Index Fund | Class R5 Shares | 160 | 0 | 0 | 0 |
| Multi-Cap-Core | MM MSCI EAFE International Index Fund | Service Class Shares | 160 | 0 | 0 | 0 |
| Multi-Cap-Core | MassMutual Select Overseas Fund | Administrative Class Shares | 457 | 3.1 | -5.4 | 15.7 |
| Multi-Cap-Core | MassMutual Select Overseas Fund | Class I Shares | 457 | 11.6 | -5.4 | 15.6 |
| Multi-Cap-Core | MassMutual Select Overseas Fund | Class R3 Shares | 457 | -3.5 | -5.6 | 15.6 |
| Multi-Cap-Core | MassMutual Select Overseas Fund | Class R4 Shares | 457 | 0.9 | -5.6 | 15.5 |
| Multi-Cap-Core | MassMutual Select Overseas Fund | Class R5 Shares | 457 | -3.4 | -5.4 | 15.6 |
| Multi-Cap-Core | MassMutual Select Overseas Fund | Service Class Shares | 457 | 9.4 | -5.3 | 15.5 |
| Multi-Cap-Core | MassMutual Global Fund | Adminsitrative Class Shares | 206 | -15.9 | 0 | 2.7 |
| Multi-Cap-Core | MassMutual Global Fund | Class I Shares | 206 | -4.7 | 0.7 | 3.4 |
| Multi-Cap-Core | MassMutual Global Fund | Class R3 Shares | 206 | -2.3 | -1.3 | 0.8 |
| Multi-Cap-Core | MassMutual Global Fund | Class R4 Shares | 206 | -2.1 | -1.1 | 1 |
| Multi-Cap-Core | MassMutual Global Fund | Class R5 Shares | 206 | -5.7 | 0.5 | 3.2 |
| Multi-Cap-Core | MassMutual Global Fund | Service Class Shares | 206 | -3.3 | 0 | 2.5 |
* Net Assets include for all classes