Integral Ad Science (IAS) Institutional Ownership $10.17 -0.02 (-0.20%) Closing price 04:00 PM EasternExtended Trading$10.16 -0.01 (-0.05%) As of 04:20 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 Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Integral Ad Science (NASDAQ:IAS)CurrentInstitutional OwnershipPercentage95.78%Number ofInstitutional Buyers(last 12 months)136TotalInstitutional Inflows(last 12 months)$230.23MNumber ofInstitutional Sellers(last 12 months)61TotalInstitutional Outflows(last 12 months)$67.42M Get IAS Insider Trade Alerts Want to know when executives and insiders are buying or selling Integral Ad Science stock? 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Skip Chart & View Institutional Buying and Selling Data IAS Institutional Buying and Selling by Quarter Integral Ad Science Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/15/2025 Tower Research Capital LLC TRC 10,158$84K0.0%+136.5%0.006% 8/15/2025 Monimus Capital Management LP665,465$5.53M4.0%+36.5%0.400% 8/15/2025 Rubric Capital Management LP2,971,951$24.70M0.4%-6.2%1.789% 8/15/2025 P2 Capital Partners LLC4,910,000$40.80M7.8%+2.1%2.955% 8/15/2025 Man Group plc117,229$974K0.0%N/A0.071% 8/15/2025 Manatuck Hill Partners LLC100,000$831K0.3%N/A0.060% 8/15/2025 Lazard Asset Management LLC25,957$215K0.0%N/A0.016% 8/15/2025 Grizzlyrock Capital LLC523,139$4.35M3.0%N/A0.315% 8/15/2025 Engineers Gate Manager LP12,811$106K0.0%-69.2%0.008% 8/15/2025 BNP Paribas Financial Markets33,165$276K0.0%+77.7%0.020% Get the Latest News and Ratings for IAS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Integral Ad Science and its competitors with MarketBeat's FREE daily newsletter. 8/15/2025 Brevan Howard Capital Management LP22,762$189K0.0%N/A0.014% 8/15/2025 Bank of America Corp DE639,093$5.31M0.0%+20.0%0.385% 8/15/2025 Ameriprise Financial Inc.1,254,049$10.42M0.0%+1,195.1%0.755% 8/14/2025 PDT Partners LLC13,586$113K0.0%-94.1%0.008% 8/14/2025 Jane Street Group LLC54,633$454K0.0%-77.8%0.033% 8/14/2025 Raymond James Financial Inc.59,310$493K0.0%-13.0%0.036% 8/14/2025 The Manufacturers Life Insurance Company 41,678$346K0.0%+3.0%0.025% 8/14/2025 Sei Investments Co.55,127$458K0.0%N/A0.033% 8/14/2025 Frontier Capital Management Co. LLC822,643$6.84M0.1%-15.0%0.495% 8/14/2025 Qube Research & Technologies Ltd183,655$1.53M0.0%-40.8%0.111% 8/14/2025 Federated Hermes Inc.30,000$249K0.0%+11.1%0.018% 8/13/2025 Jump Financial LLC19,520$162K0.0%-80.5%0.012% 8/13/2025 Marshall Wace LLP44,354$369K0.0%-61.5%0.027% 8/13/2025 Sunriver Management LLC8,822,914$73.32M7.9%+8.0%5.310% 8/13/2025 First Trust Advisors LP70,600$587K0.0%-39.3%0.042% 8/13/2025 Invesco Ltd.132,129$1.10M0.0%+32.2%0.080% 8/13/2025 Hsbc Holdings PLC97,212$802K0.0%+377.6%0.059% 8/13/2025 State Board of Administration of Florida Retirement System59,458$494K0.0%+31.2%0.036% 8/13/2025 Russell Investments Group Ltd.65,589$545K0.0%-29.0%0.039% 8/12/2025 American Century Companies Inc.132,463$1.10M0.0%+50.1%0.080% 8/12/2025 Rhumbline Advisers145,235$1.21M0.0%+42.9%0.087% 8/12/2025 CenterBook Partners LP1,716,602$14.27M0.8%+163.3%1.033% 8/12/2025 JPMorgan Chase & Co.79,024$657K0.0%+16.4%0.048% 8/11/2025 Intrust Bank NA17,353$144K0.0%N/A0.011% 8/8/2025 Intech Investment Management LLC52,308$435K0.0%-37.7%0.032% 8/8/2025 Creative Planning14,699$122K0.0%N/A0.009% 8/8/2025 SG Americas Securities LLC35,061$291K0.0%+73.3%0.021% 8/8/2025 Police & Firemen s Retirement System of New Jersey18,503$154K0.0%+25.7%0.011% 8/8/2025 Geode Capital Management LLC1,915,385$15.92M0.0%+1.4%1.161% 8/8/2025 Quinn Opportunity Partners LLC260,000$2.16M0.2%+57.6%0.158% 8/8/2025 Jupiter Asset Management Ltd.88,272$734K0.0%N/A0.053% 8/7/2025 Campbell & CO Investment Adviser LLC26,314$219K0.0%N/A0.016% 8/5/2025 Corton Capital Inc.12,068$100K0.1%-20.3%0.007% 8/5/2025 Bank of Montreal Can72,138$599K0.0%+39.4%0.044% 8/5/2025 Versor Investments LP56,100$466K0.1%-11.8%0.034% 8/1/2025 Teacher Retirement System of Texas13,625$113K0.0%+14.6%0.008% 8/1/2025 Envestnet Asset Management Inc.72,857$605K0.0%-13.7%0.044% 7/31/2025 MQS Management LLC15,480$129K0.1%N/A0.009% 7/31/2025 AlphaQuest LLC66,270$551K0.1%+476.9%0.040% 7/30/2025 Clune & Associates LTD.97,290$808K0.2%+30.8%0.059% 7/25/2025 CWM LLC9,019$75K0.0%+1,248.1%0.005% 7/24/2025 Aberdeen Group plc1,764,731$14.67M0.0%-11.5%1.069% 7/24/2025 Blue Trust Inc.43,831$364K0.0%+59.5%0.027% 7/21/2025 QRG Capital Management Inc.14,009$116K0.0%N/A0.008% 7/17/2025 Janney Montgomery Scott LLC101,124$840K0.0%N/A0.061% 7/7/2025 Delphi Management Inc. MA64,804$539K0.5%N/A0.039% 6/27/2025 Goldman Sachs Group Inc.389,093$3.14M0.0%-11.3%0.236% 6/18/2025 Voya Investment Management LLC47,281$381K0.0%+22.7%0.029% 5/29/2025Rhumbline Advisers101,663$819K0.0%-5.4%0.062% 5/19/2025Jane Street Group LLC246,429$1.99M0.0%N/A0.149% 5/16/2025Caxton Associates LLP35,029$282K0.0%N/A0.021% 5/16/2025Goldman Sachs Group Inc.389,093$3.14M0.0%-11.3%0.236% 5/16/2025Repertoire Partners LP49,301$397K0.2%-82.7%0.030% 5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.43,326$349K0.0%+4.4%0.026% 5/16/2025Invenomic Capital Management LP1,649,983$13.30M0.7%+84.3%1.000% 5/16/2025Jacobs Levy Equity Management Inc.1,378,259$11.11M0.0%-3.0%0.835% 5/16/2025Circumference Group LLC210,000$1.69M2.1%+10.5%0.127% 5/16/2025Corvex Management LP2,618,000$21.10M0.8%N/A1.587% 5/16/2025Alta Fox Capital Management LLC1,214,053$9.79M3.9%+20,831.9%0.736% 5/16/2025AQR Capital Management LLC40,689$328K0.0%-23.9%0.025% 5/15/2025EP Wealth Advisors LLC27,681$223K0.0%N/A0.017% 5/15/2025PDT Partners LLC228,977$1.85M0.1%+13.3%0.140% 5/15/2025Cubist Systematic Strategies LLC923,168$7.44M0.0%N/A0.564% 5/15/2025Royal Bank of Canada55,941$451K0.0%+219.6%0.034% 5/15/2025Magnetar Financial LLC107,327$865K0.0%N/A0.066% 5/14/2025Zuckerman Investment Group LLC15,000$121K0.0%N/A0.009% 5/14/2025Sunriver Management LLC8,166,774$65.82M8.1%+12.0%4.986% 5/14/2025Jump Financial LLC100,070$807K0.0%N/A0.061% 5/14/2025AlphaQuest LLC11,487$93K0.0%N/A0.007% 5/14/2025Hsbc Holdings PLC20,354$165K0.0%N/A0.012% 5/14/2025Quantbot Technologies LP47,687$384K0.0%N/A0.029% 5/13/2025Versor Investments LP63,600$513K0.1%+374.6%0.039% 5/13/2025American Century Companies Inc.88,256$711K0.0%N/A0.054% 5/13/2025Tejara Capital Ltd99,854$805K0.3%+66.4%0.061% 5/13/2025Aberdeen Group plc1,994,980$16.08M0.0%+12.7%1.218% 5/13/2025Fox Run Management L.L.C.79,423$640K0.1%N/A0.048% 5/13/2025Russell Investments Group Ltd.92,428$745K0.0%-1.8%0.056% 5/12/2025Nuveen LLC1,352,028$10.90M0.0%N/A0.825% 5/12/2025Virtu Financial LLC10,733$87K0.0%N/A0.007% 5/12/2025Invesco Ltd.99,932$805K0.0%+97.7%0.061% 5/9/2025CenterBook Partners LP651,880$5.25M0.3%-36.0%0.398% 5/9/2025Deutsche Bank AG525,696$4.24M0.0%-1.1%0.321% 5/9/2025Charles Schwab Investment Management Inc.588,895$4.75M0.0%-2.5%0.360% 5/9/2025Vanguard Group Inc.9,090,229$73.27M0.0%+0.5%5.550% 5/8/2025Jefferies Financial Group Inc.225,000$1.81M0.0%N/A0.137% 5/8/2025XTX Topco Ltd14,845$120K0.0%-10.1%0.009% 5/8/2025GSA Capital Partners LLP74,787$603K0.1%N/A0.046% 5/8/2025Federated Hermes Inc.27,000$218K0.0%+35.0%0.016% 5/7/2025Corton Capital Inc.15,147$122K0.4%N/A0.009% 5/7/2025one8zero8 LLC187,050$1.51M0.4%+14.7%0.114% (Data available from 1/1/2016 forward) IAS Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of IAS shares? During the previous two years, 205 institutional investors and hedge funds held shares of Integral Ad Science. The most heavily invested institutionals were Sunriver Management LLC ($73.32M), Vanguard Group Inc. ($73.27M), Alyeska Investment Group L.P. ($41.54M), P2 Capital Partners LLC ($40.80M), Dimensional Fund Advisors LP ($39.57M), Lord Abbett & CO. LLC ($31.38M), and Clearbridge Investments LLC ($28.50M).Learn more on Integral Ad Science's institutional investors. What percentage of Integral Ad Science's stock is owned by institutional investors? 95.78% of Integral Ad Science's stock is owned by institutional investors. Learn more on IAS's institutional investor holdings. Which institutional investors have been buying Integral Ad Science's stock? Of the 182 institutional investors that purchased Integral Ad Science's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Alyeska Investment Group L.P. ($3.98M), Corvex Management LP ($2.62M), Vanguard Group Inc. ($2.56M), Goldman Sachs Group Inc. ($2.35M), abrdn plc ($2.00M), Sunriver Management LLC ($1.53M), and CenterBook Partners LP ($1.47M). How much institutional buying is happening at Integral Ad Science? Institutional investors have bought a total of 25,201,654 shares in the last 24 months. This purchase volume represents approximately $230.23M in transactions. Which of Integral Ad Science's major shareholders have been selling company stock? Of the 61 institutional investors that sold Integral Ad Science's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: TimesSquare Capital Management LLC ($1.05M), JPMorgan Chase & Co. ($451.20K), Algert Global LLC ($388.98K), abrdn plc ($376.83K), Jacobs Levy Equity Management Inc. ($376.76K), CenterBook Partners LP ($367.16K), and Sunriver Management LLC ($350.43K). How much institutional selling is happening at Integral Ad Science? Institutional investors have sold a total of 6,983,756 shares in the last 24 months. This volume of shares sold represents approximately $67.42M in transactions. Related Companies Pony AI Institutional Ownership BILL Institutional Ownership Q2 Institutional Ownership CLEAR Secure Institutional Ownership Zeta Global Institutional Ownership Trump Media & Technology Group Institutional Ownership BOX Institutional Ownership OneStream Institutional Ownership Kingsoft Cloud Institutional Ownership Workiva Institutional Ownership This page (NASDAQ:IAS) was last updated on 9/25/2025 by MarketBeat.com Staff From Our PartnersTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | SponsoredHe Called Nvidia at $1.10. 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