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Similarweb (SMWB) Institutional Ownership

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$9.70 -0.69 (-6.61%)
Closing price 09/2/2025 03:59 PM Eastern
Extended Trading
$9.70 +0.00 (+0.02%)
As of 09/2/2025 06:13 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.
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Institutional Ownership Changes (13F Filings) for Similarweb (NYSE:SMWB)

Current
Institutional Ownership
Percentage
57.59%
Number of
Institutional Buyers
(last 12 months)
94
Total
Institutional Inflows
(last 12 months)
$208.26M
Number of
Institutional Sellers
(last 12 months)
41
Total
Institutional Outflows
(last 12 months)
$53.58M
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Skip Chart & View Institutional Buying and Selling Data

SMWB Institutional Buying and Selling by Quarter

Similarweb Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/15/2025 Tidal Investments LLC61,574$483K0.0%+66.4%0.073%
8/15/2025 Man Group plc26,700$209K0.0%N/A0.031%
8/15/2025 Lazard Asset Management LLC14,984$117K0.0%-25.4%0.018%
8/15/2025 Engineers Gate Manager LP102,311$802K0.0%+375.8%0.121%
8/15/2025 BNP Paribas Financial Markets43,914$344K0.0%-40.5%0.052%
8/15/2025 Bank of America Corp DE11,461$90K0.0%-91.8%0.014%
8/15/2025 Ameriprise Financial Inc.143,478$1.13M0.0%-1.6%0.169%
8/14/2025 PDT Partners LLC98,388$771K0.0%+3.9%0.116%
8/14/2025 California State Teachers Retirement System49,654$389K0.0%+29.7%0.059%
8/14/2025 Nebula Research & Development LLC18,647$146K0.0%N/A0.022%
8/14/2025 Menora Mivtachim Holdings LTD.2,326,742$18.24M0.1%+3.6%2.742%
8/14/2025 Qube Research & Technologies Ltd111,929$878K0.0%N/A0.132%
8/14/2025 Hood River Capital Management LLC78,446$615K0.0%+20.7%0.092%
8/14/2025 Federated Hermes Inc.48,000$376K0.0%+52.4%0.057%
8/14/2025 Formula Growth Ltd.100,000$784K0.3%N/A0.118%
8/13/2025 Jump Financial LLC185,820$1.46M0.0%N/A0.219%
8/13/2025 Cresset Asset Management LLC30,103$236K0.0%-13.7%0.035%
8/13/2025 Marshall Wace LLP170,942$1.34M0.0%-52.4%0.201%
8/13/2025 Russell Investments Group Ltd.75,603$593K0.0%-72.1%0.089%
8/12/2025 Scalar Gauge Management LLC1,116,343$8.75M5.0%-8.0%1.315%
8/12/2025Jefferies Financial Group Inc.36,000$282K0.0%N/A0.042%
8/12/2025 CenterBook Partners LP1,441,810$11.30M0.6%+78.5%1.699%
8/12/2025 JPMorgan Chase & Co.132,218$1.04M0.0%-37.5%0.156%
8/12/2025 Magnetar Financial LLC34,633$272K0.0%N/A0.041%
8/12/2025 Swiss National Bank87,474$686K0.0%+9.8%0.103%
8/12/2025 P.A.W. Capital Corp240,000$1.88M3.6%-20.0%0.283%
8/11/2025 Y.D. More Investments Ltd1,234,298$9.68M0.7%-11.8%1.454%
8/8/2025 Cetera Investment Advisers30,726$241K0.0%-23.5%0.036%
8/8/2025 SG Americas Securities LLC32,580$255K0.0%N/A0.038%
8/8/2025 Geode Capital Management LLC16,731$131K0.0%-50.4%0.020%
8/7/2025 S Squared Technology LLC686,672$5.38M2.3%-31.4%0.809%
8/7/2025 Connor Clark & Lunn Investment Management Ltd.920,671$7.22M0.0%+14.2%1.085%
8/6/2025 Fox Run Management L.L.C.16,497$129K0.0%N/A0.019%
8/6/2025 First Eagle Investment Management LLC169,505$1.33M0.0%N/A0.200%
8/5/2025 Palogic Value Management L.P.117,423$921K0.4%+12.4%0.138%
8/5/2025 ANTIPODES PARTNERS Ltd17,510$137K0.0%+8.3%0.021%
8/4/2025 Migdal Insurance & Financial Holdings Ltd.3,006,157$23.57M0.3%+8.8%3.542%
8/1/2025 Y Intercept Hong Kong Ltd117,831$924K0.0%+277.4%0.139%
7/31/2025 MQS Management LLC15,881$125K0.1%N/A0.019%
7/30/2025 ARK Investment Management LLC242,370$1.90M0.0%+100.7%0.286%
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7/30/2025 Phoenix Financial Ltd.1,629,185$12.77M0.2%-37.0%1.920%
7/24/2025 Blair William & Co. IL108,083$847K0.0%+23.7%0.131%
7/23/2025 Meitav Investment House Ltd.10,000$78K0.0%-47.6%0.012%
7/22/2025 Herald Investment Management Ltd600,000$4.71M0.7%+100.0%0.726%
6/27/2025 Goldman Sachs Group Inc.20,899$173K0.0%-72.9%0.025%
5/21/2025 Acadian Asset Management LLC185,065$1.53M0.0%-79.2%0.224%
5/19/2025 Palogic Value Management L.P.104,423$864K0.4%N/A0.126%
5/16/2025 S Squared Technology LLC1,000,491$8.27M4.2%-5.3%1.211%
5/16/2025 Goldman Sachs Group Inc.20,899$173K0.0%-72.9%0.025%
5/15/2025 PDT Partners LLC94,671$783K0.1%+151.3%0.115%
5/15/2025 Cubist Systematic Strategies LLC185,502$1.53M0.0%+80.2%0.225%
5/15/2025 Palogic Value Management L.P.104,423$864K0.4%N/A0.126%
5/15/2025 Trexquant Investment LP213,683$1.77M0.0%+104.5%0.259%
5/14/2025 Freedom Investment Management Inc.11,551$96K0.0%-14.5%0.014%
5/14/2025 T. Rowe Price Investment Management Inc.1,410,826$11.67M0.0%+109.1%1.708%
5/14/2025 Quantbot Technologies LP46,600$385K0.0%+57.2%0.056%
5/14/2025 Wellington Management Group LLP889,363$7.36M0.0%N/A1.076%
5/13/2025 Alpha Family Trust851,669$7.04M4.1%-25.0%1.031%
5/13/2025 Menora Mivtachim Holdings LTD.2,246,470$18.58M0.1%+33.2%2.719%
5/13/2025 Cresset Asset Management LLC34,867$288K0.0%-24.7%0.042%
5/13/2025 American Century Companies Inc.727,275$6.02M0.0%N/A0.880%
5/13/2025 Russell Investments Group Ltd.270,594$2.24M0.0%-24.3%0.328%
5/12/2025 Nuveen LLC722,971$5.98M0.0%N/A0.875%
5/12/2025 Connor Clark & Lunn Investment Management Ltd.806,174$6.67M0.0%+19.0%0.976%
5/12/2025 Herald Investment Management Ltd300,000$2.48M0.5%N/A0.363%
5/12/2025 Telemark Asset Management LLC230,000$1.90M0.2%-23.3%0.278%
5/12/2025 Y.D. More Investments Ltd1,399,863$11.58M1.0%-3.4%1.694%
5/9/2025 CenterBook Partners LP807,696$6.68M0.4%+307.2%0.978%
5/9/2025 Blair William & Co. IL87,395$723K0.0%-10.7%0.106%
5/8/2025 Federated Hermes Inc.31,500$261K0.0%N/A0.038%
5/7/2025 Essex Investment Management Co. LLC262,814$2.17M0.5%-0.8%0.318%
5/7/2025 Zurcher Kantonalbank Zurich Cantonalbank21,032$174K0.0%+15.5%0.025%
5/7/2025 ARK Investment Management LLC120,751$999K0.0%-40.7%0.146%
5/7/2025 Phoenix Financial Ltd.2,585,985$21.39M0.3%+2.5%3.130%
5/6/2025 Cetera Investment Advisers40,161$332K0.0%N/A0.049%
5/6/2025 Y Intercept Hong Kong Ltd31,219$258K0.0%N/A0.038%
5/5/2025 Migdal Insurance & Financial Holdings Ltd.2,762,557$22.85M0.3%+61.3%3.344%
5/5/2025 Jennison Associates LLC1,892,110$15.65M0.0%+2.9%2.290%
5/2/2025 Bailard Inc.61,256$507K0.0%+34.8%0.074%
5/2/2025 Victory Capital Management Inc.493,370$4.08M0.0%+14.8%0.597%
4/30/2025 Fullcircle Wealth LLC14,140$117K0.0%N/A0.017%
4/29/2025 Ceera Investments LLC319,027$2.64M0.9%+22.8%0.386%
4/29/2025 Calamos Advisors LLC84,173$696K0.0%-50.8%0.102%
4/28/2025 P.A.W. Capital Corp300,000$2.48M6.1%-25.0%0.363%
4/28/2025 Teacher Retirement System of Texas18,362$152K0.0%+70.1%0.022%
4/23/2025 Oppenheimer & Co. Inc.105,045$869K0.0%-5.5%0.127%
3/18/2025 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%
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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%
2/17/2025 Panoramic Capital LLC125,000$1.77M0.9%N/A0.154%
2/17/2025Nuveen 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%
(Data available from 1/1/2016 forward)

SMWB Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of SMWB shares?

During the previous two years, 118 institutional investors and hedge funds held shares of Similarweb. The most heavily invested institutionals were Migdal Insurance & Financial Holdings Ltd. ($23.57M), Schonfeld Strategic Advisors LLC ($22.54M), Menora Mivtachim Holdings LTD. ($18.24M), Jennison Associates LLC ($15.65M), Phoenix Financial Ltd. ($12.77M), T. Rowe Price Investment Management Inc. ($11.67M), and CenterBook Partners LP ($11.30M).Learn more on Similarweb's institutional investors.

What percentage of Similarweb's stock is owned by institutional investors?

57.59% of Similarweb's stock is owned by institutional investors. Learn more on SMWB's institutional investor holdings.

Which institutional investors have been buying Similarweb's stock?

Of the 103 institutional investors that purchased Similarweb's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Jennison Associates LLC ($1.89M), Y.D. More Investments Ltd ($1.60M), Schonfeld Strategic Advisors LLC ($1.59M), T. Rowe Price Investment Management Inc. ($1.41M), CenterBook Partners LP ($1.39M), Migdal Insurance & Financial Holdings Ltd. ($1.29M), and Scalar Gauge Management LLC ($960.00K).

How much institutional buying is happening at Similarweb?

Institutional investors have bought a total of 19,100,617 shares in the last 24 months. This purchase volume represents approximately $208.26M in transactions.

Which of Similarweb's major shareholders have been selling company stock?

Of the 41 institutional investors that sold Similarweb's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Phoenix Financial Ltd. ($994.30K), Alpha Family Trust ($830.11K), Acadian Asset Management LLC ($703.58K), Millennium Management LLC ($433.95K), S Squared Technology LLC ($369.62K), Russell Investments Group Ltd. ($281.77K), and Migdal Insurance & Financial Holdings Ltd. ($253.51K).

How much institutional selling is happening at Similarweb?

Institutional investors have sold a total of 5,599,524 shares in the last 24 months. This volume of shares sold represents approximately $53.58M in transactions.


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This page (NYSE:SMWB) was last updated on 9/3/2025 by MarketBeat.com Staff
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