MassMutual Select and Premier Funds

MassMutual Select Funds*

MassMutual Select 20/80 Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select 80/20 Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select 40/60 Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select 60/40 Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MM MSCI EAFE^® International Index Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MM Russell 2000^® Small Cap Index Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MM S&P 500^® Index Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MM S&P^® Mid Cap Index Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2020 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual RetireSMART^SM by JPMorgan 2025 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2030 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2035 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2040 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2045 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2050 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2055 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan 2060 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual RetireSMART^SM by JPMorgan In Retirement Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select BlackRock Global Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select Blue Chip Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Diversified Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MM Select Equity Asset Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Equity Opportunities Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Fundamental Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Fundamental Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Growth Opportunities Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select Mid Cap Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Mid-Cap Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Overseas Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Small Cap Growth Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Small Cap Value Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select Small Company Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
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MassMutual Select Strategic Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Bond Asset Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price International Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Large Cap Blend Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Limited Duration Inflation Focused Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Real Assets Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement Balanced Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Emerging Markets Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2005 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2010 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2015 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2020 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2025 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2030 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2035 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2040 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2045 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2050 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2055 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Retirement 2060 Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price Small and Mid Cap Blend Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select T. Rowe Price U.S. Treasury Long-Term Index Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Select Total Return Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Funds*

MassMutual Premier Balanced Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Core Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Disciplined Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Disciplined Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Diversified Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Global Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier High Yield Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Inflation-Protected and Income Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier International Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Main Street Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Short-Duration Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Small Cap Opportunities Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier Strategic Emerging Markets Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MassMutual Premier U.S. Government Money Market Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information
Portfolio Holdings: Available under Related Information

*These funds are generally available for sale to retirement plans, and may also be available to other institutional investors or to individual investors through a financial intermediary or through a product sponsored by a financial intermediary. The MassMutual Select T. Rowe Price Retirement funds are only available to certain retirement plan clients. Certain funds are only available to other MassMutual Funds.

Please call 1-888-309-3539 or email fundinfo@massmutual.com to report problems accessing the fund summary prospectuses, prospectuses, and annual/semiannual reports (“disclosure documents”), problems with saving or printing these online disclosure documents, and/or any other technological issues that may arise related to viewing the online fund disclosure documents.

Principal Underwriter: MML Distributors, LLC (MMLD), Member FINRA and SIPC (www.FINRA.org and www.SIPC.org), is a subsidiary of Massachusetts Mutual Life Insurance Company, Springfield, MA 01111-0001