SMWB · Company research
Similarweb Ltd. (SMWB): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
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Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | 1277890 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 650000 | 3984500 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| JONES FINANCIAL COMPANIES LLLP | 815917 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100 | 560 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Viola Growth Management Fund 2 Ltd. | 1803169 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10810778 | 66270069 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | 1446179 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 169885 | 1041395 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Tower Research Capital LLC (TRC) | 1533421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 399 | 2446 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| ACADIAN ASSET MANAGEMENT LLC | 916542 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6750 | 41 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| BARCLAYS PLC | 312069 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 690 | 4230 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MARATHON CAPITAL MANAGEMENT | 1213206 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10000 | 61300 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| CDC Financial, Inc. | 2077836 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 674233 | 4133048 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MORGAN STANLEY | 895421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1200 | 7356 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| SIMPLEX TRADING, LLC | 1488542 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 33066 | 202694 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| WealthTrust Axiom LLC | 1425949 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 44565 | 273182 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| OSAIC HOLDINGS, INC. | 1677044 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 300 | 1839 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Quarry LP | 1965207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 149 | 913 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| STATE STREET CORP | 93751 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 77054 | 472341 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| Quadrature Capital Ltd | 1651424 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 68207 | 418109 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| Caitong International Asset Management Co., Ltd | 1963355 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11 | 67 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| ANTIPODES PARTNERS Ltd | 1652442 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 145601 | 892534 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| CITADEL ADVISORS LLC | 1423053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 346735 | 2125486 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Persistent Asset Partners Ltd | 2056052 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 180000 | 1103400 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| IMC-Chicago, LLC | 1452861 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 37506 | 229912 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Pathstone Holdings, LLC | 2011612 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 99390 | 609261 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| MYDA Advisors LLC | 1589689 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100000 | 613000 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| XTX Topco Ltd | 1828301 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10906 | 66854 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| State of Wyoming | 1821626 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 88458 | 542248 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Sphera Management Technology Funds Ltd | 2030525 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 615000 | 3769950 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| R Squared Ltd | 1896148 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11256 | 68999 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| Schonfeld Strategic Advisors LLC | 1665241 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1210629 | 7421154 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Ulysses Management LLC | 1510912 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2928474 | 17951546 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SG Americas Securities, LLC | 1313360 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 22064 | 135 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 133533 | 818557 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| WELLS FARGO & COMPANY/MN | 72971 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8200 | 50266 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| HERALD INVESTMENT MANAGEMENT Ltd | 1512022 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 645465 | 3963155 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| PEAK6 LLC | 1389958 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 484822 | 2971959 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| PRELUDE CAPITAL MANAGEMENT, LLC | 1387508 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10411 | 63819 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 138417 | 848496 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Integrated Wealth Concepts LLC | 1737109 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15000 | 91950 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Qube Research & Technologies Ltd | 1729829 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31847 | 195222 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WELLINGTON MANAGEMENT GROUP LLP | 902219 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2439494 | 14954098 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CenterBook Partners LP | 1872738 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 599737 | 3676388 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Farther Finance Advisors, LLC | 1992825 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3 | 16 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| Alpha Family Trust | 1568991 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 658935 | 4039272 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Y.D. More Investments Ltd | 1870364 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1147035 | 7031325 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| RENAISSANCE TECHNOLOGIES LLC | 1037389 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 713728 | 4375153 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| D. E. Shaw & Co., Inc. | 1009207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 121400 | 744182 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| PharVision Advisers, LLC | 1898824 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10368 | 63556 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| GROUP ONE TRADING LLC | 932540 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 124100 | 760733 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ARK Investment Management LLC | 1697748 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 834663 | 5116484 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5900 | 36000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| TWO SIGMA INVESTMENTS, LP | 1179392 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 129851 | 795987 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Olympiad Research LP | 1787147 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10337 | 63366 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7511 | 46042 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| S SQUARED TECHNOLOGY, LLC | 1322924 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1690000 | 10359700 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MARSHALL WACE, LLP | 1318757 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 55759 | 341803 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| State Street Corporation | 93751 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 77054 | 472341000 | — | — | — | Sep 22, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 133533 | 818557000 | — | — | — | Aug 7, 2026 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7511 | 46042000 | — | — | — | Aug 3, 2026 | SEC_13F_HR |
| NASPERS LTD | 1106051 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11173265 | 68492114 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| SBI Securities Co., Ltd. | 1851815 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1024 | 6277 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| Centiva Capital, LP | 1692507 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 45919 | 281483 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Cresset Asset Management, LLC | 1761013 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10144 | 62183 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| LAVELLE CAPITAL LP | 2136566 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 202727 | 1242717 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| UBS Group AG | 1610520 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 398200 | 2440966 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| FMR LLC | 315066 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6 | 37 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Lotus Technology Management, LP | 2095243 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 531409 | 3403907 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| P.A.W. CAPITAL CORP | 949853 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 640000 | 3923200 | — | — | — | Jul 28, 2026 | SEC_13F_DATASET |
| GSA CAPITAL PARTNERS LLP | 1362033 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 95899 | 588 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| MILLENNIUM MANAGEMENT LLC | 1273087 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18198 | 111554 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MENORA MIVTACHIM HOLDINGS LTD. | 1351917 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4015494 | 24614978 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| JANE STREET GROUP, LLC | 1595888 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 317117 | 1943927 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| LAZARD ASSET MANAGEMENT LLC | 1207017 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 23566 | 144460 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Connor, Clark & Lunn Investment Management Ltd. | 1596800 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 445691 | 2732086 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Smartleaf Asset Management LLC | 2010393 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 29 | 179 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| ION Crossover Partners Ltd | 1803307 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3030826 | 18578963 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WELLS FARGO & COMPANY/MN | 72971 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8200 | 21402 | — | — | — | Jul 8, 2026 | SEC_13F_DATASET |
| Militia Capital Management LLC | 2130487 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 236000 | 615960 | — | — | — | Jun 12, 2026 | SEC_13F_DATASET |
| P.A.W. CAPITAL CORP | 949853 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 500000 | 1305000 | — | — | — | Jul 21, 2026 | SEC_13F_DATASET |
| Federated Hermes, Inc. | 1056288 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 25000 | 65250000 | — | — | — | May 11, 2026 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 110174 | 287554000 | — | — | — | May 11, 2026 | SEC_13F_HR |
| Goldman Sachs Group Inc. | 886982 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 42643 | 111298000 | — | — | — | May 15, 2026 | SEC_13F_HR |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.