System1 (SST) Institutional Ownership $2.94 -0.01 (-0.17%) Closing price 05/22/2026 03:58 PM EasternExtended Trading$2.91 -0.03 (-1.19%) As of 05/22/2026 07:22 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for System1 (NYSE:SST)CurrentInstitutional OwnershipPercentage87.50%Number ofInstitutional Buyers(last 12 months)2TotalInstitutional Inflows(last 12 months)$84.49KNumber ofInstitutional Sellers(last 12 months)6TotalInstitutional Outflows(last 12 months)$161.73M Get SST Insider Trade Alerts Want to know when executives and insiders are buying or selling System1 stock? 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Skip Chart & View Institutional Buying and Selling Data SST Institutional Buying and Selling by Quarter System1 Major Shareholders & Ownership History ExportReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails1/6/2026 Cannae Holdings Inc.356,797$1.40M1.7%-86.8%3.569% 11/17/2025 Millennium Management LLC38,561$271K0.0%-9.9%0.386% 11/17/2025 Citadel Advisors LLC10,056$71K0.0%N/A0.101% 11/17/2025 Bank of America Corp DE161,570$1.14M0.0%-7.3%1.616% 8/15/2025 BNP Paribas Financial Markets4,511$25K0.0%+125.8%0.046% 8/15/2025 Bank of America Corp DE174,289$964K0.0%-89.4%1.764% 8/14/2025 Jane Street Group LLC31,681$175K0.0%-9.2%0.321% 8/14/2025 Cerity Partners LLC109,286$604K0.0%-90.3%1.106% 8/8/2025 Geode Capital Management LLC21,530$119K0.0%-95.5%0.218% 7/10/2025 Cannae Holdings Inc.2,701,279$14.94M1.8%-90.0%27.341% Get the Latest News and Ratings for SST and Related StocksEnter your email address below to receive the latest news and analysts' ratings for System1 and its competitors with MarketBeat's FREE daily newsletter. 2/17/2025Deutsche Bank AG146,110$131K0.0%+383.2%0.159% 2/17/2025Ancora Advisors LLC194,330$175K0.0%N/A0.211% 2/12/2025JPMorgan Chase & Co.88,544$80K0.0%+160.5%0.096% 2/11/2025Prudential Financial Inc.49,910$45K0.0%N/A0.054% 1/30/2025Rhumbline Advisers57,185$51K0.0%-28.4%0.062% 12/26/2024JPMorgan Chase & Co.33,993$38K0.0%+215.7%0.037% 11/19/2024Barclays PLC38,866$44K0.0%+56.1%0.042% 11/16/2024Geode Capital Management LLC473,732$531K0.0%+3.6%0.522% 11/15/2024Barclays PLC38,866$44K0.0%+56.1%0.043% 11/15/2024Jane Street Group LLC103,589$116K0.0%+74.3%0.114% 11/12/2024Charles Schwab Investment Management Inc.54,967$62K0.0%-54.8%0.061% 8/12/2024XTX Topco Ltd24,160$37K0.0%N/A0.027% 8/9/2024Renaissance Technologies LLC57,900$88K0.0%+126.2%0.064% 5/9/2024Pacific Ridge Capital Partners LLC185,671$364K0.1%-20.6%0.207% 1/30/2024Arbor Trust Wealth Advisors LLC20,950$47K0.0%+91.3%0.022% 11/7/2023Cannae Holdings Inc.27,012,794$32.69M2.2%-0.4%28.857% 10/26/2023Brighton Jones LLC218,104$264K0.0%-7.3%0.233% 9/21/2023Barclays PLC11,564$52K0.0%N/A0.012% 8/4/2023American International Group Inc.11,924$54K0.0%N/A0.013% 7/31/2023Brighton Jones LLC235,391$1.06M0.1%N/A0.251% 5/3/2023Cannae Holdings Inc.27,122,795$116.63M6.0%+6.8%29.657% 4/17/2023Ronald Blue Trust Inc.35,514$167K0.0%N/A0.039% 2/14/2023Pacific Ridge Capital Partners LLC233,270$1.09M0.3%+59.8%0.255% 11/15/2022Twinbeech Capital LP73,083$460K0.0%N/A0.081% 11/15/2022Caas Capital Management LP424,470$2.67M0.1%N/A0.469% 11/10/2022Cannae Holdings Inc.25,400,559$159.77M8.2%-0.2%28.038% 11/10/2022Pacific Ridge Capital Partners LLC146,000$918K0.2%+99.4%0.161% 10/24/2022Arbor Trust Wealth Advisors LLC10,950$69K0.1%N/A0.012% 8/30/2022Verition Fund Management LLC67,125$468K0.0%N/A0.074% 8/10/2022Pacific Ridge Capital Partners LLC73,210$510K0.1%N/A0.081% Goldman Sachs just told you what to buy (most people missed it) (Ad)Goldman Sachs just revealed that 40% of AI data centers will be crippled by electricity shortages by 2027 - not chips, not funding, but power. Demand is growing 15% per year and the grid can't keep up. One small company makes the exact equipment these data centers need. They're sitting on $1.5 billion in orders, their hardware is already inside Musk's Colossus, and the stock still trades like a name nobody's heard of. Analyst Dylan Jovine is releasing the ticker for free.See the stock positioned to solve AI's biggest power crisis8/8/2022Cannae Holdings Inc.25,450,559$177.39M7.9%-6.4%28.102% 8/3/2022Accel Wealth Management3,500$27K0.0%N/A0.004% 7/29/2022Cornerstone Investment Partners LLC17,294$121K0.0%N/A0.019% 5/3/2022Cannae Holdings Inc.27,181,770$394.41M12.3%N/A31.923% SST Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of SST shares? During the previous two years, 17 institutional investors and hedge funds held shares of System1. The most heavily invested institutionals were Cannae Holdings Inc. ($1.40M), Bank of America Corp DE ($1.14M), Cerity Partners LLC ($604K), Millennium Management LLC ($271K), Jane Street Group LLC ($175K), Ancora Advisors LLC ($175K), and Deutsche Bank AG ($131K).Learn more on System1's institutional investors. What percentage of System1's stock is owned by institutional investors? 87.50% of System1's stock is owned by institutional investors. Learn more on SST's institutional investor holdings. Which institutional investors have been buying System1's stock? Of the 11 institutional investors that purchased System1's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Ancora Advisors LLC ($194.33K), Deutsche Bank AG ($115.87K), JPMorgan Chase & Co. ($77.78K), Prudential Financial Inc. ($49.91K), Jane Street Group LLC ($44.15K), Renaissance Technologies LLC ($32.30K), and Barclays PLC ($27.94K). How much institutional buying is happening at System1? Institutional investors have bought a total of 12,569 shares in the last 24 months. This purchase volume represents approximately $84.49K in transactions. Which of System1's major shareholders have been selling company stock? The following institutional investors have sold System1 stock in the last 24 months: Cannae Holdings Inc. ($26.66M), Bank of America Corp DE ($1.49M), Cerity Partners LLC ($1.02M), Geode Capital Management LLC ($453.36K), Millennium Management LLC ($4.22K), and Jane Street Group LLC ($3.20K). How much institutional selling is happening at System1? Institutional investors have sold a total of 29,623,108 shares in the last 24 months. This volume of shares sold represents approximately $161.73M in transactions. Related Companies PERF Major Shareholders LAWR Major Shareholders DOMO Major Shareholders MTC Major Shareholders CMCM Major Shareholders IDN Major Shareholders DOYU Major Shareholders BNAI Major Shareholders SANG Major Shareholders DKI Major Shareholders This page (NYSE:SST) was last updated on 5/25/2026 by MarketBeat.com Staff. 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