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Similarweb (SMWB) Institutional Ownership

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$3.14 -0.30 (-8.60%)
As of 02:53 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)
65
Total
Institutional Inflows
(last 12 months)
$139.89M
Number of
Institutional Sellers
(last 12 months)
31
Total
Institutional Outflows
(last 12 months)
$41.24M
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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
5/4/2026 Y.D. More Investments Ltd1,151,298$3.01M0.1%-1.7%1.314%
2/18/2026Sphera Management Technology Funds Ltd480,000$3.60M1.2%+3.7%0.566%
2/18/2026Numerai GP LLC117,949$883K0.1%N/A0.139%
2/18/2026Millennium Management LLC357,807$2.68M0.0%-30.0%0.422%
2/18/2026Engineers Gate Manager LP62,800$470K0.0%-33.5%0.074%
2/18/2026Boothbay Fund Management LLC11,961$90K0.0%N/A0.014%
2/17/2026Lazard Asset Management LLC13,736$103K0.0%-30.5%0.016%
2/17/2026Trexquant Investment LP108,038$809K0.0%-21.1%0.127%
2/17/2026Jump Financial LLC63,321$474K0.0%+37.7%0.075%
2/17/2026Public Employees Retirement System of Ohio60,419$453K0.0%+29.5%0.071%
2/17/2026 Russell Investments Group Ltd.148,339$1.11M0.0%-2.2%0.175%
2/17/2026ExodusPoint Capital Management LP29,931$224K0.0%N/A0.035%
2/17/2026 Blair William & Co. IL71,044$532K0.0%-30.8%0.084%
2/17/2026Persistent Asset Partners Ltd180,000$1.35M0.6%N/A0.212%
2/16/2026Verition Fund Management LLC35,844$268K0.0%-47.0%0.042%
2/16/2026S Squared Technology LLC775,161$5.81M2.2%+12.9%0.913%
2/13/2026Marshall Wace LLP292,483$2.19M0.0%+25.4%0.345%
2/13/2026State Street Corp370,001$2.77M0.0%+16.3%0.436%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC43,261$324K0.0%N/A0.051%
2/12/2026HRT Financial LP58,354$437K0.0%+24.0%0.069%
2/12/2026 Brooklyn Investment Group11,732$85K0.0%N/A0.014%
2/12/2026 New York State Common Retirement Fund852,915$6.39M0.0%+0.4%1.005%
2/12/2026 Nuveen LLC1,520,398$11.39M0.0%+2.5%1.792%
2/11/2026ARK Investment Management LLC236,425$1.77M0.0%+2.8%0.279%
2/11/2026Fox Run Management L.L.C.19,528$146K0.0%N/A0.023%
2/11/2026 CenterBook Partners LP960,996$7.20M0.4%-18.6%1.132%
2/9/2026 Penn Capital Management Company LLC1,588,680$11.91M0.9%-3.5%1.872%
2/9/2026Royce & Associates LP537,406$4.03M0.0%+8.7%0.633%
2/6/2026Nano Cap New Millennium Growth Fund L P167,500$1.26M1.1%N/A0.197%
2/5/2026Phoenix Financial Ltd.4,285,786$32.10M0.3%+43.2%5.050%
2/4/2026First Eagle Investment Management LLC645,647$4.84M0.0%+18.5%0.761%
2/2/2026 Oppenheimer & Co. Inc.89,390$670K0.0%-10.3%0.105%
1/29/2026 UBS Group AG536,549$4.02M0.0%+71.4%0.632%
1/27/2026Zurcher Kantonalbank Zurich Cantonalbank31,592$237K0.0%+50.2%0.037%
1/21/2026 Y.D. More Investments Ltd1,171,298$8.37M0.4%-1.0%1.380%
1/1/2026JPMorgan Chase & Co.21,525$200K0.0%-83.7%0.025%
11/24/2025 Penn Capital Management Company LLC1,646,094$15.32M1.2%+299.4%1.940%
11/17/2025Wexford Capital LP6,860$64K0.0%N/A0.008%
11/17/2025Verition Fund Management LLC67,573$628K0.0%-22.2%0.080%
11/17/2025Public Employees Retirement System of Ohio46,673$434K0.0%+302.4%0.055%
11/17/2025Millennium Management LLC510,921$4.75M0.0%+65.7%0.602%
11/17/2025Larson Financial Group LLC2,686$25K0.0%N/A0.003%
11/17/2025Bank of America Corp DE56,213$523K0.0%+390.5%0.066%
11/14/2025Lazard Asset Management LLC19,761$184K0.0%+31.9%0.023%
11/14/2025Wellington Management Group LLP2,457,805$22.86M0.0%+163.6%2.896%
11/14/2025Portolan Capital Management LLC1,179,000$10.97M0.6%+62.0%1.389%
11/13/2025Menora Mivtachim Holdings LTD.3,208,394$29.84M0.2%+37.9%3.780%
11/13/2025 UBS Group AG312,987$2.91M0.0%+701.6%0.369%
11/13/2025Connor Clark & Lunn Investment Management Ltd.944,552$8.78M0.0%+2.6%1.113%
11/13/2025 Legal & General Group Plc43,374$403K0.0%+13.7%0.051%
11/13/2025 Russell Investments Group Ltd.151,635$1.41M0.0%+100.6%0.179%
11/13/2025 Blair William & Co. IL102,623$954K0.0%-5.1%0.121%
11/12/2025Alpha Family Trust658,935$6.13M2.9%-22.6%0.776%
11/12/2025ARK Investment Management LLC230,053$2.14M0.0%-5.1%0.271%
11/12/2025Cresset Asset Management LLC10,468$97K0.0%-65.2%0.012%
11/12/2025Legato Capital Management LLC109,711$1.02M0.1%+41.0%0.129%
11/12/2025First Eagle Investment Management LLC545,001$5.07M0.0%+221.5%0.642%
11/12/2025Royce & Associates LP494,328$4.60M0.0%N/A0.582%
11/10/2025 Y.D. More Investments Ltd1,182,798$11.34M0.6%-4.2%1.394%
11/7/2025 CenterBook Partners LP1,180,966$10.98M0.5%-18.1%1.392%
11/7/2025JPMorgan Chase & Co.21,525$200K0.0%-83.7%0.025%
11/6/2025Essex Investment Management Co. LLC380,793$3.54M0.5%+45.9%0.449%
11/6/2025 Oppenheimer & Co. Inc.99,602$926K0.0%-4.6%0.117%
11/5/2025Fullcircle Wealth LLC15,000$140K0.0%N/A0.018%
11/3/2025 New York State Common Retirement Fund849,745$7.90M0.0%N/A1.001%
11/3/2025Federated Hermes Inc.31,000$288K0.0%-35.4%0.037%
10/30/2025Migdal Insurance & Financial Holdings Ltd.3,106,157$28.89M0.3%+3.3%3.660%
8/15/2025Tidal Investments LLC61,574$483K0.0%+66.4%0.073%
8/15/2025Man Group plc26,700$209K0.0%N/A0.031%
8/15/2025Lazard Asset Management LLC14,984$117K0.0%-25.4%0.018%
8/15/2025Engineers Gate Manager LP102,311$802K0.0%+375.8%0.121%
8/15/2025BNP Paribas Financial Markets43,914$344K0.0%-40.5%0.052%
8/15/2025Bank of America Corp DE11,461$90K0.0%-91.8%0.014%
8/15/2025Ameriprise Financial Inc.143,478$1.13M0.0%-1.6%0.169%
8/14/2025PDT Partners LLC98,388$771K0.0%+3.9%0.116%
8/14/2025California State Teachers Retirement System49,654$389K0.0%+29.7%0.059%
8/14/2025Nebula Research & Development LLC18,647$146K0.0%N/A0.022%
8/14/2025Menora Mivtachim Holdings LTD.2,326,742$18.24M0.1%+3.6%2.742%
8/14/2025Qube Research & Technologies Ltd111,929$878K0.0%N/A0.132%
8/14/2025Hood River Capital Management LLC78,446$615K0.0%+20.7%0.092%
8/14/2025Federated Hermes Inc.48,000$376K0.0%+52.4%0.057%
8/14/2025Formula Growth Ltd.100,000$784K0.3%N/A0.118%
8/13/2025Jump Financial LLC185,820$1.46M0.0%N/A0.219%
8/13/2025Cresset Asset Management LLC30,103$236K0.0%-13.7%0.035%
8/13/2025Marshall 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%
8/12/2025Scalar 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%
8/12/2025JPMorgan Chase & Co.132,218$1.04M0.0%-37.5%0.156%
8/12/2025Magnetar 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%
8/8/2025Cetera Investment Advisers30,726$241K0.0%-23.5%0.036%
8/8/2025 SG Americas Securities LLC32,580$255K0.0%N/A0.038%
8/8/2025Geode Capital Management LLC16,731$131K0.0%-50.4%0.020%
8/7/2025S Squared Technology LLC686,672$5.38M2.3%-31.4%0.809%
8/7/2025Connor Clark & Lunn Investment Management Ltd.920,671$7.22M0.0%+14.2%1.085%
8/6/2025Fox Run Management L.L.C.16,497$129K0.0%N/A0.019%


SMWB Institutional Ownership - Frequently Asked Questions

During the previous two years, 122 institutional investors and hedge funds held shares of Similarweb. The most heavily invested institutionals were Phoenix Financial Ltd. ($32.10M), Menora Mivtachim Holdings LTD. ($29.84M), Migdal Insurance & Financial Holdings Ltd. ($28.89M), Wellington Management Group LLP ($22.86M), Schonfeld Strategic Advisors LLC ($22.54M), Jennison Associates LLC ($15.65M), and Penn Capital Management Company LLC ($11.91M).Learn more on Similarweb's institutional investors.

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

Of the 113 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: Wellington Management Group LLP ($2.41M), Jennison Associates LLC ($1.89M), Schonfeld Strategic Advisors LLC ($1.59M), Menora Mivtachim Holdings LTD. ($1.52M), T. Rowe Price Investment Management Inc. ($1.41M), Migdal Insurance & Financial Holdings Ltd. ($1.39M), and CenterBook Partners LP ($1.39M).

Institutional investors have bought a total of 16,373,913 shares in the last 24 months. This purchase volume represents approximately $139.89M in transactions.

Of the 31 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. ($956.80K), Acadian Asset Management LLC ($703.58K), CenterBook Partners LP ($480.81K), Alpha Family Trust ($476.62K), S Squared Technology LLC ($369.62K), JPMorgan Chase & Co. ($300.79K), and Y.D. More Investments Ltd ($298.34K).

Institutional investors have sold a total of 5,047,891 shares in the last 24 months. This volume of shares sold represents approximately $41.24M in transactions.


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This page (NYSE:SMWB) was last updated on 5/11/2026 by MarketBeat.com Staff.
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