Mason Street Advisors, LLC Top Holdings and 13F Report (2026) About Mason Street Advisors, LLCInvestment ActivityMason Street Advisors, LLC has $1.11 billion in total holdings as of June 30, 2026.Mason Street Advisors, LLC owns shares of 15 different stocks, but just 8 companies or ETFs make up 80% of its holdings.Approximately 7.52% of the portfolio was purchased this quarter.About 5.58% of the portfolio was sold this quarter.This quarter, Mason Street Advisors, LLC has purchased 15 new stocks and bought additional shares in 11 stocks.Mason Street Advisors, LLC sold shares of 3 stocks and completely divested from 1 stock this quarter.Largest Holdings iShares Core U.S. Aggregate Bond ETF $301,971,153iShares Core S&P 500 ETF $154,634,552SPDR Portfolio Long Term Treasury ETF $105,076,331SPDR Portfolio S&P 400 Mid Cap ETF $95,872,504SPDR Portfolio S&P 600 Small Cap ETF $79,541,232 Largest New Holdings this Quarter 025072349 - Avantis U.S. Large Cap Value ETF $43,308,332 Holding Largest Purchases this Quarter Avantis U.S. Large Cap Value ETF 474,820 shares (about $43.31M)Schwab U.S. REIT ETF 514,990 shares (about $12.19M)SPDR Dow Jones REIT ETF 104,580 shares (about $11.81M)Invesco S&P 500 Equal Weight ETF 20,825 shares (about $4.43M)abrdn Bloomberg All Commodity Strategy K-1 Free ETF 184,160 shares (about $4.11M) Largest Sales this Quarter SPDR Portfolio S&P 400 Mid Cap ETF 142,897 shares (about $9.65M)iShares Core MSCI EAFE ETF 76,244 shares (about $7.36M)iShares Core S&P 500 ETF 5,196 shares (about $3.89M) Sector Allocation Over TimeMap of 500 Largest Holdings ofMason Street Advisors, LLC Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorAGGiShares Core U.S. Aggregate Bond ETF$301,971,153$155,102 â–²0.1%3,050,83027.2%ETFIVViShares Core S&P 500 ETF$154,634,552$3,891,232 â–¼-2.5%206,48513.9%ETFSPTLSPDR Portfolio Long Term Treasury ETF$105,076,331$189,905 â–²0.2%4,005,9609.5%ETFSPMDSPDR Portfolio S&P 400 Mid Cap ETF$95,872,504$9,654,121 â–¼-9.1%1,419,0728.6%ETFSPSMSPDR Portfolio S&P 600 Small Cap ETF$79,541,232$3,046,418 â–²4.0%1,379,2487.2%ETFRSPInvesco S&P 500 Equal Weight ETF$61,414,997$4,430,935 â–²7.8%288,6455.5%ETFIEFAiShares Core MSCI EAFE ETF$61,304,445$7,363,646 â–¼-10.7%634,7535.5%ETFRWRSPDR Dow Jones REIT ETF$51,204,217$11,814,403 â–²30.0%453,2554.6%ETFSCHHSchwab U.S. REIT ETF$51,175,203$12,194,963 â–²31.3%2,161,1154.6%ETFAVLVAvantis U.S. Large Cap Value ETF$43,308,332$43,308,332 â–²New Holding474,8203.9%ETFIQLTiShares MSCI Intl Quality Factor ETF$39,276,600$1,176,119 â–²3.1%792,6663.5%ETFJPSTJPMorgan Ultra-Short Income ETF$25,017,788$423,777 â–²1.7%494,7162.3%ETFDFIVDimensional International Value ETF$22,379,676$592,599 â–²2.7%414,2852.0%ETFBCIabrdn Bloomberg All Commodity Strategy K-1 Free ETF$12,074,658$4,114,134 â–²51.7%540,4951.1%ETFIEMGiShares Core MSCI Emerging Markets ETF$5,639,747$2,034,550 â–²56.4%68,0800.5%ETFVLUEiShares MSCI USA Value Factor ETF$0$40,979,158 â–¼-100.0%00.0%ETFShowing largest 100 holdings. View all holdings. More Institutional Buying and Selling Information SEC Filings and Trading Data SEC Filings 13F Filings Top 13F Buys Top 13F Sells Unlock superior investment research and tools. Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools and reports. Get MarketBeat All Access MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In Email Me a Login Link or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
