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Advisor Information for MMINX

Fund Inception12/30/2002
Name of IssuerMassMutual
Fund Advisor(s)MML Investment Advisers, LLC
Sub-Advisor(s)BlackRock Investment Management, LLC

Fund Managers for MMINX

Jennifer Hsui
Portfolio Manager since 04/25/2025
Jennifer Hsui, CFA, Managing Director, is Global Head of Index Equity Portfolio Management within BlackRock Global Markets & Index Investments ("BGM"). She leads the team responsible for delivering investment quality across roughly $5 trillion of BlackRock’s equity index funds and ETFs. Jennifer is a member of the BlackRock Global Operating Committee. BlackRock Global Markets and Index Investments provides clients with superior market access and index investment outcomes. Our shared mission across these functions is to deliver investment, trading, financing and risk management.
Peter Sietsema
Portfolio Manager since 05/31/2025
Peter Sietsema, CFA, Managing Director, is the Americas Head of Institutional Portfolio Management for Index Equity Investments within BlackRock Global Markets & Index Investments ("BGM"). He is responsible for the management of ETFs, sub-advised, and Institutional pooled & separate accounts that are predominantly invested in US, Canada, and LatAm markets. He leverages market expertise, a deep understanding of benchmark methodologies, and technology to consistently deliver precise investment performance. Mr. Sietsema's service with the firm dates back to 2007, including his years with Barclays Global Investors (BGI), which merged with BlackRock in 2009. At BGI, he was a portfolio manager within the US Index Portfolio Management group in San Francisco. Mr. Sietsema began his career as Senior Manager of Alternative Investments at State Street. Mr. Sietsema earned a BS degree in business administration from California State University, Sacramento, in 2001. He is a CFA charter holder and holds the FINRA Series 7 and 63 licenses.