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Equibles

SMWB

Similarweb Ltd.

Company with tickers: SMWB

CIK
1842731
CUSIP
M84137104
Shares Outstanding
87,600,541
Investor Relations
https://ir.similarweb.com/
13F Activity (30d)
36 filings 34 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 56
Total Value: $72,895,276
Total Shares: 27,929,234

Institutional Ownership Trend

22 quarters

Holder Concentration

Across 56 13F filers
Top Holder
40.0%
Dec 2023 → Mar 2026 · range 23.4% – 40.9%
of institutional value
Top 5
72.1%
Dec 2023 → Mar 2026 · range 46.3% – 77.8%
of institutional value
Top 10
83.5%
Dec 2023 → Mar 2026 · range 62.8% – 92.1%
of institutional value
HHI
1,930
Dec 2023 → Mar 2026 · range 816 – 2,136
Moderately concentrated

Quarterly Activity

vs Feb 18, 2026
New
56
Increased
0
Decreased
0
Sold Out
1
Unchanged
0
Holder count: +55
Institutional value: +1042.2%
Shares held: +1015.9%

Top New Positions

vs Feb 18, 2026
Institution Acquired Value (USD) Open
Small NASPERS LTD 11,173,265 $29,162,221
Micro ION Crossover Partners Ltd 3,030,826 $7,910,455
Small Ulysses Management LLC 2,998,474 $7,826,017
Small S SQUARED TECHNOLOGY, LLC 1,600,000 $4,176,000
Mid CenterBook Partners LP 1,325,113 $3,458,544

Top Sold-Out Positions

vs Feb 18, 2026
Institution Previously Held Last Value (USD) Open
Mid Phoenix Financial Ltd. 2,502,769 $6,382,060
Filter: New 56 Increased 0 Reduced 0 Sold out 1 Unchanged 0
Showing 57 of 57
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Small NASPERS LTD $29,162,221 40.01% 11,173,265
Micro ION Crossover Partners Ltd $7,910,455 10.85% 3,030,826
Small Ulysses Management LLC $7,826,017 10.74% 2,998,474
Small S SQUARED TECHNOLOGY, LLC $4,176,000 5.73% 1,600,000
Mid CenterBook Partners LP $3,458,544 4.74% 1,325,113
Small Alpha Family Trust $1,719,820 2.36% 658,935
Small HERALD INVESTMENT MANAGEMENT Ltd $1,684,663 2.31% 645,465
Small CDC Financial, Inc. $1,667,826 2.29% 639,014
Large MARSHALL WACE, LLP $1,665,670 2.29% 638,188
Small Sphera Management Technology Funds Ltd $1,605,150 2.20% 615,000
Micro P.A.W. CAPITAL CORP $1,305,000 1.79% 500,000
Large ACADIAN ASSET MANAGEMENT LLC $1,058,634 1.45% 405,607
Micro NANO CAP NEW MILLENNIUM GROWTH FUND L P $1,017,900 1.40% 390,000
Mid Penn Capital Management Company, LLC $940,555 1.29% 360,366
Large PEAK6 LLC $838,217 1.15% 321,156
Small Militia Capital Management LLC $615,960 0.84% 236,000
Mid XTX Topco Ltd $597,376 0.82% 228,880
Small LAVELLE CAPITAL LP $529,117 0.73% 202,727
Small Persistent Asset Partners Ltd $469,800 0.64% 180,000
Mid GSA CAPITAL PARTNERS LLP $396,994 0.54% 152,105
Mid Jump Financial, LLC $385,277 0.53% 147,616
Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $327,876 0.45% 125,623
Small Palogic Value Management, L.P. $297,540 0.41% 114,000
Mega CITIGROUP INC $287,554 0.39% 110,174
Mega STATE STREET CORP $285,523 0.39% 109,396
Mid Quadrature Capital Ltd $245,950 0.34% 94,234
Mid OPPENHEIMER & CO INC $237,739 0.33% 91,088
Mid Voleon Capital Management LP $231,517 0.32% 88,704
Mid Engineers Gate Manager LP $228,160 0.31% 87,418
Mega TWO SIGMA INVESTMENTS, LP $206,388 0.28% 79,076
Large Tidal Investments LLC $160,843 0.22% 61,626
Large PEAK6 LLC $158,166 0.22% 60,600
Large Centiva Capital, LP $156,918 0.22% 60,122
Mega D. E. Shaw & Co., Inc. $152,819 0.21% 58,552
Small AXQ CAPITAL, LP $136,790 0.19% 52,410
Large Russell Investments Group, Ltd. $135,769 0.19% 52,019
Large Pathstone Holdings, LLC $131,517 0.18% 50,390
Mid Graham Capital Management, L.P. $95,614 0.13% 36,634
Large HRT FINANCIAL LP $59,168 0.08% 22,670
Mid Virtu Financial LLC $52,489 0.07% 20,111
Micro PharVision Advisers, LLC $49,399 0.07% 18,927
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $49,000 0.07% 18,774
Mid Aquatic Capital Management LLC $47,000 0.06% 18,008
Large Squarepoint Ops LLC $33,982 0.05% 13,020
Large LAZARD ASSET MANAGEMENT LLC $29,305 0.04% 11,228
Large Cresset Asset Management, LLC $26,475 0.04% 10,144
Mid MEITAV INVESTMENT HOUSE LTD $26,100 0.04% 10,000
Mid SIMPLEX TRADING, LLC $7,579 0.01% 2,904
Mid SBI Securities Co., Ltd. Broker-Dealer $2,672 0.00% 1,024
Mega BNP PARIBAS ARBITRAGE, SA $2,322 0.00% 890
Large OSAIC HOLDINGS, INC. $783 0.00% 300
Small Caitong International Asset Management Co., Ltd $631 0.00% 242
Large JONES FINANCIAL COMPANIES LLLP $261 0.00% 100
Large ASSETMARK, INC $125 0.00% 48
Mid Smartleaf Asset Management LLC $75 0.00% 29
Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $31 0.00% 12
Small Covestor Ltd $0 0.00% 0

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