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Similarweb (SMWB) Institutional Ownership

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$9.45 -0.33 (-3.39%)
Closing price 09/25/2025 03:59 PM Eastern
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$9.66 +0.22 (+2.30%)
As of 09/25/2025 07:55 PM Eastern
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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)
$208.25M
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%
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%
5/21/2025Acadian Asset Management LLC185,065$1.53M0.0%-79.2%0.224%
5/19/2025Palogic Value Management L.P.104,423$864K0.4%N/A0.126%
5/16/2025S Squared Technology LLC1,000,491$8.27M4.2%-5.3%1.211%
5/16/2025Goldman Sachs Group Inc.20,899$173K0.0%-72.9%0.025%
5/15/2025PDT Partners LLC94,671$783K0.1%+151.3%0.115%
5/15/2025Cubist Systematic Strategies LLC185,502$1.53M0.0%+80.2%0.225%
5/15/2025Palogic Value Management L.P.104,423$864K0.4%N/A0.126%
5/15/2025Trexquant Investment LP213,683$1.77M0.0%+104.5%0.259%
5/14/2025Freedom Investment Management Inc.11,551$96K0.0%-14.5%0.014%
5/14/2025T. Rowe Price Investment Management Inc.1,410,826$11.67M0.0%+109.1%1.708%
5/14/2025Quantbot Technologies LP46,600$385K0.0%+57.2%0.056%
5/14/2025Wellington Management Group LLP889,363$7.36M0.0%N/A1.076%
5/13/2025Alpha Family Trust851,669$7.04M4.1%-25.0%1.031%
5/13/2025Menora Mivtachim Holdings LTD.2,246,470$18.58M0.1%+33.2%2.719%
5/13/2025Cresset Asset Management LLC34,867$288K0.0%-24.7%0.042%
5/13/2025American Century Companies Inc.727,275$6.02M0.0%N/A0.880%
5/13/2025Russell Investments Group Ltd.270,594$2.24M0.0%-24.3%0.328%
5/12/2025Nuveen LLC722,971$5.98M0.0%N/A0.875%
5/12/2025Connor Clark & Lunn Investment Management Ltd.806,174$6.67M0.0%+19.0%0.976%
5/12/2025Herald Investment Management Ltd300,000$2.48M0.5%N/A0.363%
5/12/2025Telemark Asset Management LLC230,000$1.90M0.2%-23.3%0.278%
5/12/2025Y.D. More Investments Ltd1,399,863$11.58M1.0%-3.4%1.694%
5/9/2025CenterBook Partners LP807,696$6.68M0.4%+307.2%0.978%
5/9/2025Blair William & Co. IL87,395$723K0.0%-10.7%0.106%
5/8/2025Federated Hermes Inc.31,500$261K0.0%N/A0.038%
5/7/2025Essex Investment Management Co. LLC262,814$2.17M0.5%-0.8%0.318%
5/7/2025Zurcher Kantonalbank Zurich Cantonalbank21,032$174K0.0%+15.5%0.025%
5/7/2025ARK Investment Management LLC120,751$999K0.0%-40.7%0.146%
5/7/2025Phoenix Financial Ltd.2,585,985$21.39M0.3%+2.5%3.130%
5/6/2025Cetera Investment Advisers40,161$332K0.0%N/A0.049%
5/6/2025Y Intercept Hong Kong Ltd31,219$258K0.0%N/A0.038%
5/5/2025Migdal Insurance & Financial Holdings Ltd.2,762,557$22.85M0.3%+61.3%3.344%
5/5/2025Jennison Associates LLC1,892,110$15.65M0.0%+2.9%2.290%
5/2/2025Bailard Inc.61,256$507K0.0%+34.8%0.074%
5/2/2025Victory Capital Management Inc.493,370$4.08M0.0%+14.8%0.597%
4/30/2025Fullcircle Wealth LLC14,140$117K0.0%N/A0.017%
4/29/2025Ceera Investments LLC319,027$2.64M0.9%+22.8%0.386%
4/29/2025Calamos Advisors LLC84,173$696K0.0%-50.8%0.102%
4/28/2025P.A.W. Capital Corp300,000$2.48M6.1%-25.0%0.363%
4/28/2025Teacher Retirement System of Texas18,362$152K0.0%+70.1%0.022%
4/23/2025Oppenheimer & Co. Inc.105,045$869K0.0%-5.5%0.127%
3/18/2025California State Teachers Retirement System38,298$543K0.0%+36.2%0.046%
2/25/2025Heck Capital Advisors LLC8,143$115K0.0%N/A0.010%
2/19/2025Public Employees Retirement System of Ohio9,900$140K0.0%+25.3%0.012%
2/17/2025Sphera Management Technology Funds Ltd164,145$2.33M1.3%N/A0.203%
2/17/2025Squarepoint Ops LLC38,638$548K0.0%-67.9%0.048%
2/17/2025Two Sigma Advisers LP43,600$618K0.0%+41.1%0.054%
2/17/2025Two Sigma Investments LP255,372$3.62M0.0%+49.1%0.316%
2/17/2025Tidal Investments LLC40,641$576K0.0%N/A0.050%
2/17/2025State of Wyoming18,623$264K0.0%-20.5%0.023%
2/17/2025Point72 Asset Management L.P.94,480$1.34M0.0%N/A0.117%
2/17/2025Panoramic Capital LLC125,000$1.77M0.9%N/A0.154%
2/17/2025Nuveen Asset Management LLC428,926$6.08M0.0%+24.9%0.530%
2/17/2025Numerai GP LLC38,668$548K0.2%-55.5%0.048%
2/17/2025Millennium 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 19,098,479 shares in the last 24 months. This purchase volume represents approximately $208.25M 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 9/26/2025 by MarketBeat.com Staff
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