Similarweb (SMWB) Institutional Ownership $8.39 -0.20 (-2.35%) Closing price 03/28/2025 03:59 PM EasternExtended Trading$8.38 -0.01 (-0.15%) As of 03/28/2025 07:50 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Similarweb (NYSE:SMWB)CurrentInstitutional OwnershipPercentage57.59%Number ofInstitutional Buyers(last 12 months)74TotalInstitutional Inflows(last 12 months)$149.20MNumber ofInstitutional Sellers(last 12 months)25TotalInstitutional Outflows(last 12 months)$25.17M Get SMWB Insider Trade Alerts Want to know when executives and insiders are buying or selling Similarweb stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data SMWB Institutional Buying and Selling by Quarter Remove Ads Similarweb Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails3/18/2025 California State Teachers Retirement System38,298$543K0.0%+36.2%0.046% 2/25/2025 Heck Capital Advisors LLC8,143$115K0.0%N/A0.010% 2/19/2025 Public Employees Retirement System of Ohio9,900$140K0.0%+25.3%0.012% 2/17/2025 Sphera Management Technology Funds Ltd164,145$2.33M1.3%N/A0.203% 2/17/2025 Squarepoint Ops LLC38,638$548K0.0%-67.9%0.048% 2/17/2025 Two Sigma Advisers LP43,600$618K0.0%+41.1%0.054% 2/17/2025 Two Sigma Investments LP255,372$3.62M0.0%+49.1%0.316% 2/17/2025 Tidal Investments LLC40,641$576K0.0%N/A0.050% 2/17/2025 State of Wyoming18,623$264K0.0%-20.5%0.023% 2/17/2025 Point72 Asset Management L.P.94,480$1.34M0.0%N/A0.117% Get the Latest News and Ratings for SMWB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Similarweb and its competitors with MarketBeat's FREE daily newsletter. 2/17/2025 Panoramic Capital LLC125,000$1.77M0.9%N/A0.154% 2/17/2025 Nuveen Asset Management LLC428,926$6.08M0.0%+24.9%0.530% 2/17/2025 Numerai GP LLC38,668$548K0.2%-55.5%0.048% 2/17/2025 Millennium Management LLC108,328$1.54M0.0%-80.0%0.134% 2/17/2025 Lazard Asset Management LLC76,415$1.08M0.0%+23.0%0.094% 2/17/2025 D. E. Shaw & Co. Inc.292,584$4.15M0.0%+54.8%0.362% 2/17/2025 Corton Capital Inc.12,097$171K0.1%-59.2%0.015% 2/17/2025 Cresset Asset Management LLC46,328$656K0.0%-14.7%0.057% 2/17/2025 Cubist Systematic Strategies LLC102,966$1.46M0.0%+10.8%0.127% 2/17/2025 Centiva Capital LP22,841$324K0.0%-4.9%0.028% 2/17/2025 Bank of America Corp DE276,935$3.92M0.0%+145.0%0.342% 2/17/2025 BNP Paribas Financial Markets88,501$1.25M0.0%N/A0.109% 2/17/2025 Alyeska Investment Group L.P.375,000$5.31M0.0%+15.4%0.463% 2/17/2025 Alpha Family Trust1,135,559$16.09M9.0%-31.1%1.403% 2/14/2025 PDT Partners LLC37,680$534K0.0%N/A0.047% 2/14/2025 Schonfeld Strategic Advisors LLC1,590,391$22.54M0.1%N/A1.965% 2/14/2025 Northern Trust Corp66,277$939K0.0%+437.4%0.082% 2/14/2025 T. Rowe Price Investment Management Inc.674,822$9.56M0.0%N/A0.834% 2/14/2025 Freedom Investment Management Inc.13,512$191K0.0%N/A0.017% 2/13/2025 S Squared Technology LLC1,056,291$14.97M6.2%+2.8%1.305% 2/13/2025 Marshall Wace LLP358,736$5.08M0.0%+22.8%0.443% 2/13/2025 Jump Financial LLC67,300$954K0.0%+111.3%0.083% 2/13/2025 Portolan Capital Management LLC282,903$4.01M0.3%N/A0.350% 2/13/2025 Walleye Capital LLC478,417$6.78M0.0%+34.9%0.591% 2/13/2025 XTX Topco Ltd52,175$739K0.1%-3.3%0.064% 2/13/2025 Barclays PLC10,946$156K0.0%-29.0%0.014% 2/13/2025 Next Century Growth Investors LLC699,128$9.91M0.7%+146.7%0.864% 2/13/2025 Covestor Ltd2,280$32K0.0%-36.9%0.003% 2/13/2025 Phoenix Financial Ltd.2,522,007$35.74M0.5%-1.5%3.117% 2/13/2025 CenterBook Partners LP198,331$2.81M0.2%+292.0%0.245% Crypto’s crashing…but we’re still profiting (Ad)Most traders are panicking right now. Bitcoin’s dropping. Altcoins are bleeding. The stock market’s a mess. The news is screaming fear. But while most traders watch their portfolios tank…my friend Joel and his team at The Crypto Code are doing the opposite.2/13/2025 Renaissance Technologies LLC380,873$5.40M0.0%+17.2%0.471% 2/13/2025 Legal & General Group Plc39,371$558K0.0%+21.7%0.049% 2/13/2025 Russell Investments Group Ltd.357,373$5.06M0.0%+66.6%0.442% 2/12/2025 ExodusPoint Capital Management LP68,218$967K0.0%+191.5%0.084% 2/12/2025 Trexquant Investment LP104,475$1.48M0.0%-29.6%0.129% 2/12/2025 Geode Capital Management LLC33,730$478K0.0%+236.6%0.042% 2/12/2025 Scalar Gauge Management LLC1,115,778$15.81M7.3%+29.2%1.379% 2/12/2025 Arrowstreet Capital Limited Partnership255,406$3.62M0.0%+111.1%0.316% 2/12/2025 Blair William & Co. IL97,853$1.39M0.0%+288.6%0.121% 2/12/2025 JPMorgan Chase & Co.187,644$2.66M0.0%+9.4%0.232% 2/11/2025 KLP Kapitalforvaltning AS8,100$115K0.0%N/A0.010% 2/11/2025 Sei Investments Co.68,171$966K0.0%N/A0.084% 2/11/2025 Quantbot Technologies LP29,652$420K0.0%+247.3%0.037% 2/11/2025 Teacher Retirement System of Texas10,796$153K0.0%N/A0.013% 2/10/2025 Natixis Advisors LLC18,017$255K0.0%N/A0.022% 2/10/2025 Telemark Asset Management LLC300,000$4.25M0.4%N/A0.371% 2/10/2025 ANTIPODES PARTNERS Ltd16,166$229K0.0%+52.2%0.020% 2/10/2025 Swiss National Bank80,974$1.15M0.0%+28.4%0.100% 2/10/2025 Connor Clark & Lunn Investment Management Ltd.677,465$9.60M0.0%+50.6%0.837% 2/7/2025 Essex Investment Management Co. LLC264,820$3.75M0.7%-13.3%0.327% 2/6/2025 Victory Capital Management Inc.429,782$6.09M0.0%N/A0.531% 2/6/2025 Keybank National Association OH11,330$161K0.0%N/A0.014% 2/5/2025 Bailard Inc.45,457$644K0.0%N/A0.056% 2/5/2025 Oppenheimer & Co. Inc.111,149$1.58M0.0%+4.3%0.137% 2/4/2025 ARK Investment Management LLC203,674$2.89M0.0%-26.2%0.252% 2/3/2025 Meitav Investment House Ltd.12,846$182K0.0%+17.0%0.016% 1/31/2025 Global Retirement Partners LLC2,047$29K0.0%N/A0.003% 1/31/2025 New York State Common Retirement Fund2,754$39K0.0%N/A0.003% 1/29/2025 Legato Capital Management LLC79,207$1.12M0.1%-23.1%0.098% 1/27/2025 Y.D. More Investments Ltd1,449,634$20.54M1.8%+6.3%1.791% 1/24/2025 Calamos Advisors LLC171,167$2.43M0.0%+147.4%0.212% 1/24/2025 Jennison Associates LLC1,839,055$26.06M0.0%N/A2.273% 1/23/2025 Heck Capital Advisors LLC8,143$115K0.0%N/A0.010% 1/8/2025 International Assets Investment Management LLC10,990$154K0.0%N/A0.014% 12/26/2024 JPMorgan Chase & Co.171,539$1.52M0.0%+147.4%0.212% 11/19/2024 Barclays PLC15,414$136K0.0%+201.0%0.019% 11/15/2024 Barclays PLC15,414$136K0.0%+201.0%0.019% 11/15/2024 Public Employees Retirement System of Ohio7,900$70K0.0%N/A0.010% 11/15/2024 XTX Topco Ltd53,980$477K0.0%+9.0%0.067% 11/15/2024 State Street Corp187,919$1.66M0.0%+32.5%0.232% 11/15/2024 Quadrature Capital Ltd57,569$508K0.0%-25.4%0.071% 11/15/2024 Centiva Capital LP24,024$212K0.0%N/A0.030% 11/15/2024 Atom Investors LP143,942$1.27M0.1%+41.1%0.178% 11/14/2024 Scalar Gauge Management LLC863,923$7.64M4.1%+45.5%1.068% 11/14/2024 Verition Fund Management LLC18,100$160K0.0%N/A0.022% 11/14/2024 Walleye Capital LLC354,653$3.14M0.0%+115.9%0.438% 11/14/2024 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC15,912$141K0.0%-16.5%0.020% 11/13/2024 Quantbot Technologies LP8,537$75K0.0%N/A0.011% 11/8/2024 Connor Clark & Lunn Investment Management Ltd.449,896$3.98M0.0%+112.7%0.556% 11/7/2024 Alpha Family Trust1,648,715$14.58M8.1%-2.0%2.037% Crypto’s crashing…but we’re still profiting (Ad)Most traders are panicking right now. Bitcoin’s dropping. Altcoins are bleeding. The stock market’s a mess. The news is screaming fear. But while most traders watch their portfolios tank…my friend Joel and his team at The Crypto Code are doing the opposite.11/6/2024 Oppenheimer & Co. Inc.106,607$942K0.0%+9.8%0.132% 11/5/2024 GSA Capital Partners LLP45,247$400K0.0%-13.9%0.056% 11/4/2024 State of New Jersey Common Pension Fund D13,785$122K0.0%N/A0.017% 11/4/2024 Migdal Insurance & Financial Holdings Ltd.1,712,557$15.14M0.2%-12.9%2.116% 10/31/2024 ARK Investment Management LLC276,097$2.44M0.0%-4.0%0.341% 10/28/2024 P.A.W. Capital Corp400,000$3.54M8.0%N/A0.494% 10/28/2024 Meitav Investment House Ltd.10,976$104K0.0%-49.7%0.014% 10/10/2024 Inspire Investing LLC100,265$886K0.1%N/A0.124% 9/16/2024 Cubist Systematic Strategies LLC51,272$398K0.0%+4.4%0.065% 8/14/2024 Squarepoint Ops LLC51,328$399K0.0%-46.8%0.065% (Data available from 1/1/2016 forward)Remove Ads SMWB Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of SMWB shares? During the previous two years, 96 institutional investors and hedge funds held shares of Similarweb. The most heavily invested institutionals were Phoenix Financial Ltd. ($35.74M), Jennison Associates LLC ($26.06M), Schonfeld Strategic Advisors LLC ($22.54M), Y.D. More Investments Ltd ($20.54M), Alpha Family Trust ($16.09M), Scalar Gauge Management LLC ($15.81M), and Migdal Insurance & Financial Holdings Ltd. ($15.14M).Learn more on SMWB's institutional investors. What percentage of Similarweb stock is owned by institutional investors? 57.59% of Similarweb stock is owned by institutional investors. Learn more on SMWB's institutional investor holdings. Which institutional investors have been buying Similarweb stock? Of the 81 institutional investors that purchased Similarweb stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Portolan Capital Management LLC ($2.08M), Jennison Associates LLC ($1.84M), Y.D. More Investments Ltd ($1.60M), Schonfeld Strategic Advisors LLC ($1.59M), Scalar Gauge Management LLC ($960.00K), T. Rowe Price Investment Management Inc. ($674.82K), and Connor Clark & Lunn Investment Management Ltd. ($466.00K). How much institutional buying is happening at Similarweb? Institutional investors have bought a total of 15,810,105 shares in the last 24 months. This purchase volume represents approximately $175.21M in transactions. Which Similarweb major shareholders have been selling company stock? Of the 29 institutional investors that sold Similarweb stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Alpha Family Trust ($546.22K), Meitav Investment House Ltd. ($539.85K), Millennium Management LLC ($433.95K), Migdal Insurance & Financial Holdings Ltd. ($394.98K), ARK Investment Management LLC ($265.85K), Premier Fund Managers Ltd ($221.34K), and Squarepoint Ops LLC ($126.83K). How much institutional selling is happening at Similarweb? Institutional investors have sold a total of 3,030,587 shares in the last 24 months. This volume of shares sold represents approximately $31.48M in transactions. Related Companies ALRM Major Shareholders ALKT Major Shareholders WB Major Shareholders DV Major Shareholders APPN Major Shareholders VNET Major Shareholders CXM Major Shareholders MQ Major Shareholders EVCM Major Shareholders RPD Major Shareholders This page (NYSE:SMWB) was last updated on 3/29/2025 by MarketBeat.com Staff From Our PartnersA brutally honest economic warning for 2025 (see proof)New York Times best-selling financial author and world-renowned economist Addison Wiggin (a man who’s worked s...Banyan Hill Publishing | Sponsored$2 Trillion Disappears Because of Fed's Secretive New Move$2 trillion has disappeared from the US government's books. The reason why is a new, secretive move being c...Stansberry Research | SponsoredHas Trump finally met his match?Dylan Jovine predicted the 2008 crash over a year before it happened. 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