MML Series Funds

MML Series Investment Fund*

MML Aggressive Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML American Funds Core Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML American Funds Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML American Funds International Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

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

MML Conservative Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Equity Income Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Equity Index Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Focused Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Fundamental Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Foreign Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Fundamental Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

MML Growth Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Growth & Income Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Income & Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

MML Large Cap Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Managed Volatility Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Mid Cap Growth Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Mid Cap Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Moderate Allocation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Small Cap Growth Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

MML Small/Mid Cap Value Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

MML Series Investment Fund II*

MML Blend Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Dynamic Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

MML Equity Momentum Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Equity Rotation Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

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

MML Managed Bond Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

MML Small Cap Equity Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

MML Special Situations Fund
Summary Prospectus | Prospectus | Annual Report | Semi-Annual Report | Statement of Additional Information |
Portfolio Holdings: Q1 | Q3

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

MML 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 underlying funds of MassMutual's variable life and variable annuity products and are not available for retail sale.

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.