Mason Street Advisors, LLC Portfolio Holdings

Mason Street Advisors, LLC has filed its 13F form on October 31, 2025 for Q3 2025 where it was disclosed a total value porftolio of $965 Million distributed in 15 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Ishares Core U.S. Aggregate Bo with a value of $305M, Ishares Core S&P 500 ETF with a value of $140M, Spdr Portfolio Long Term Treas with a value of $107M, Spdr Portfolio with a value of $77.9M, and Ishares Tr with a value of $55.2M.

Examining the 13F form we can see an increase of $110M in the current position value, from $854M to 965M.

Mason Street Advisors, LLC is based out at Milwaukee, WI

Below you can find more details about Mason Street Advisors, LLC portfolio as well as his latest detailed transactions.