SIMILARWEB LTD. - SMWB
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NASPERS LTD | History | No change | 11,173,265 | 83,687 | 18.06% | 15.7% | 1 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Phoenix Financial Ltd. | History | New | 4,285,786 | 32,100 | 0.35% | — | 2 | +4,285,786 | New | Q4 2025 | Feb 05, 2026 |
| MENORA MIVTACHIM HOLDINGS LTD. | History | Added to | 4,015,494 | 30,076 | 0.14% | 0.15% | 3 | +807,100 | 25.16% | Q4 2025 | Feb 12, 2026 |
| Migdal Insurance & Financial Holdings Ltd. | History | No change | 3,106,157 | 23,265 | 0.2% | 0.31% | 4 | 0 | 0.0% | Q4 2025 | Jan 28, 2026 |
| ION Crossover Partners Ltd | History | New | 3,030,826 | 22,700 | 29.28% | — | 5 | +3,030,826 | New | Q4 2025 | May 20, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | History | Added to | 3,001,433 | 22,480 | 0.0% | 0.0% | 6 | +543,628 | 22.12% | Q4 2025 | Feb 17, 2026 |
| Ulysses Management LLC | History | No change | 2,998,474 | 22,458 | 4.13% | 2.04% | 7 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Penn Capital Management Company, LLC | History | Reduced | 1,588,680 | 11,909 | 0.95% | 1.18% | 8 | -57,414 | -3.49% | Q4 2025 | Feb 09, 2026 |
| Nuveen, LLC | History | Added to | 1,520,398 | 11,387 | 0.0% | 0.0% | 9 | +37,457 | 2.53% | Q4 2025 | Feb 12, 2026 |
| Y.D. More Investments Ltd | History | Reduced | 1,171,298 | 8,371 | 0.4% | 0.64% | 10 | -11,500 | -0.97% | Q4 2025 | Jan 21, 2026 |
| BlackRock, Inc. | History | Added to | 976,514 | 7,314 | 0.0% | 0.0% | 11 | +31,250 | 3.31% | Q4 2025 | Feb 12, 2026 |
| CenterBook Partners LP | History | Reduced | 960,996 | 7,197 | 0.35% | 0.54% | 12 | -219,970 | -18.63% | Q4 2025 | Feb 11, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | Added to | 852,915 | 6,388 | 0.01% | 0.01% | 13 | +3,170 | 0.37% | Q4 2025 | Feb 12, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | History | Reduced | 799,222 | 5,986 | 0.02% | 0.03% | 14 | -145,330 | -15.39% | Q4 2025 | Feb 10, 2026 |
| S Squared Technology, LLC | History | Added to | 775,161 | 5,805 | 2.25% | 2.43% | 15 | +88,489 | 12.89% | Q4 2025 | Feb 13, 2026 |
| Alpha Family Trust | History | No change | 658,935 | 4,935 | 2.25% | 2.87% | 16 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| HERALD INVESTMENT MANAGEMENT Ltd | History | Added to | 645,465 | 4,853 | 0.63% | 0.74% | 17 | +45,465 | 7.58% | Q4 2025 | Feb 13, 2026 |
| First Eagle Investment Management, LLC | History | Added to | 645,647 | 4,835 | 0.01% | 0.01% | 18 | +100,646 | 18.47% | Q4 2025 | Feb 04, 2026 |
| ROYCE & ASSOCIATES LP | History | Added to | 537,406 | 4,025 | 0.04% | 0.05% | 19 | +43,078 | 8.71% | Q4 2025 | Feb 09, 2026 |
| UBS Group AG | History | Added to | 536,549 | 4,018 | 0.0% | 0.0% | 20 | +223,562 | 71.43% | Q4 2025 | Jan 29, 2026 |
| Portolan Capital Management, LLC | History | Reduced | 492,861 | 3,691 | 0.2% | 0.59% | 21 | -686,139 | -58.2% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 486,014 | 3,640 | 0.0% | 0.0% | 22 | -433,355 | -47.14% | Q4 2025 | Feb 17, 2026 |
| Sphera Management Technology Funds Ltd | History | Added to | 480,000 | 3,595 | 1.23% | 1.36% | 23 | +17,122 | 3.7% | Q4 2025 | Feb 17, 2026 |
| STATE STREET CORP | History | Added to | 370,001 | 2,771 | 0.0% | 0.0% | 24 | +51,942 | 16.33% | Q4 2025 | Feb 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 361,473 | 2,707 | 0.0% | 0.0% | 25 | -2,500 | -0.69% | Q4 2025 | Feb 12, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 357,807 | 2,679 | 0.0% | 0.0% | 26 | -153,114 | -29.97% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 320,008 | 2,396 | 0.0% | 0.0% | 27 | -187,714 | -36.97% | Q4 2025 | Feb 12, 2026 |
| MARSHALL WACE, LLP | History | Added to | 292,483 | 2,190 | 0.0% | 0.0% | 28 | +59,269 | 25.41% | Q4 2025 | Feb 13, 2026 |
| MORGAN STANLEY | History | Reduced | 256,660 | 1,922 | 0.0% | 0.0% | 29 | -42,868 | -14.31% | Q4 2025 | May 27, 2026 |
| P.A.W. CAPITAL CORP | History | No change | 240,000 | 1,797 | 3.91% | 3.85% | 30 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| ARK Investment Management LLC | History | Added to | 236,425 | 1,770 | 0.01% | 0.01% | 31 | +6,372 | 2.77% | Q4 2025 | Feb 11, 2026 |
| LAVELLE CAPITAL LP | History | New | 202,727 | 1,518 | 0.96% | — | 32 | +202,727 | New | Q4 2025 | May 29, 2026 |
| Persistent Asset Partners Ltd | History | New | 180,000 | 1,348 | 0.61% | — | 33 | +180,000 | New | Q4 2025 | Feb 17, 2026 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | History | New | 167,500 | 1,254 | 1.07% | — | 34 | +167,500 | New | Q4 2025 | Feb 06, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Reduced | 158,411 | 1,177 | 0.0% | 0.0% | 35 | -19,137 | -10.78% | Q4 2025 | Feb 10, 2026 |
| Russell Investments Group, Ltd. | History | Reduced | 148,339 | 1,111 | 0.0% | 0.0% | 36 | -3,296 | -2.17% | Q4 2025 | Feb 17, 2026 |
| GROUP ONE TRADING LLC | History | Added to | 147,063 | 1,101 | 0.0% | 0.0% | 37 | +105,894 | 257.22% | Q4 2025 | Feb 12, 2026 |
| CDC Financial, Inc. | History | New | 141,723 | 1,061 | 0.5% | — | 38 | +141,723 | New | Q4 2025 | Feb 13, 2026 |
| AMERIPRISE FINANCIAL INC | History | Reduced | 138,422 | 1,036 | 0.0% | 0.0% | 39 | -4,345 | -3.04% | Q4 2025 | Feb 17, 2026 |
| Numerai GP LLC | History | New | 117,949 | 883 | 0.11% | — | 40 | +117,949 | New | Q4 2025 | Feb 17, 2026 |
| Trexquant Investment LP | History | Reduced | 108,038 | 809 | 0.01% | 0.01% | 41 | -28,878 | -21.09% | Q4 2025 | Feb 17, 2026 |
| OPPENHEIMER & CO INC | History | Reduced | 89,390 | 669 | 0.01% | 0.01% | 42 | -10,212 | -10.25% | Q4 2025 | Feb 02, 2026 |
| Point72 Asset Management, L.P. | History | Added to | 89,149 | 667 | 0.0% | 0.0% | 43 | +392 | 0.44% | Q4 2025 | Feb 17, 2026 |
| Swiss National Bank | History | No change | 87,474 | 655 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| NORTHERN TRUST CORP | History | Added to | 80,549 | 603 | 0.0% | 0.0% | 45 | +1,300 | 1.64% | Q4 2025 | Feb 17, 2026 |
| SEI INVESTMENTS CO | History | New | 76,702 | 574 | 0.0% | — | 46 | +76,702 | New | Q4 2025 | Feb 13, 2026 |
| PEAK6 LLC | History | Reduced | 73,598 | 551 | 0.0% | 0.0% | 47 | -176,779 | -70.61% | Q4 2025 | Feb 13, 2026 |
| BLAIR WILLIAM & CO/IL | History | Reduced | 71,044 | 532 | 0.0% | 0.0% | 48 | -31,579 | -30.77% | Q4 2025 | Feb 17, 2026 |
| Jump Financial, LLC | History | Added to | 63,321 | 474 | 0.01% | 0.01% | 49 | +17,321 | 37.65% | Q4 2025 | Feb 17, 2026 |
| Engineers Gate Manager LP | History | Reduced | 62,800 | 470 | 0.01% | 0.01% | 50 | -31,588 | -33.47% | Q4 2025 | Feb 17, 2026 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | History | Added to | 60,419 | 452 | 0.0% | 0.0% | 51 | +13,746 | 29.45% | Q4 2025 | Feb 17, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 60,200 | 450 | 0.0% | 0.0% | 52 | -907,221 | -93.78% | Q4 2025 | Feb 17, 2026 |
| HRT FINANCIAL LP | History | Added to | 58,354 | 437 | 0.0% | 0.0% | 53 | +11,309 | 24.04% | Q4 2025 | Feb 12, 2026 |
| Tidal Investments LLC | History | Reduced | 58,296 | 436 | 0.0% | 0.0% | 54 | -3,091 | -5.04% | Q4 2025 | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 57,834 | 433 | 0.0% | 0.0% | 55 | +330 | 0.57% | Q4 2025 | Mar 25, 2026 |
| Legal & General Group Plc | History | Added to | 56,620 | 424 | 0.0% | 0.0% | 56 | +13,246 | 30.54% | Q4 2025 | Feb 09, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Reduced | 48,217 | 361 | 0.0% | 0.0% | 57 | -1,437 | -2.89% | Q4 2025 | Feb 17, 2026 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | History | New | 43,261 | 324 | 0.0% | — | 58 | +43,261 | New | Q4 2025 | Feb 13, 2026 |
| PDT Partners, LLC | History | No change | 40,794 | 305 | 0.02% | 0.02% | 59 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Verition Fund Management LLC | History | Reduced | 35,844 | 268 | 0.0% | 0.0% | 60 | -31,729 | -46.96% | Q4 2025 | Feb 13, 2026 |
| PharVision Advisers, LLC | History | New | 35,684 | 267 | 0.14% | — | 61 | +35,684 | New | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | No change | 35,291 | 264 | 0.0% | 0.0% | 62 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | History | Added to | 31,592 | 236 | 0.0% | 0.0% | 63 | +10,560 | 50.21% | Q4 2025 | Jan 27, 2026 |
| Pathstone Holdings, LLC | History | New | 30,830 | 230 | 0.0% | — | 64 | +30,830 | New | Q4 2025 | Feb 13, 2026 |
| ExodusPoint Capital Management, LP | History | New | 29,931 | 224 | 0.0% | — | 66 | +29,931 | New | Q4 2025 | Feb 17, 2026 |
| FEDERATED HERMES, INC. | History | Reduced | 30,000 | 224 | 0.0% | 0.0% | 65 | -1,000 | -3.23% | Q4 2025 | Feb 12, 2026 |
| D. E. Shaw & Co., Inc. | History | Reduced | 28,376 | 212 | 0.0% | 0.0% | 67 | -6,226 | -17.99% | Q4 2025 | Feb 17, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 20,249 | 151 | 0.0% | 0.0% | 68 | -1,276 | -5.93% | Q4 2025 | Feb 11, 2026 |
| FOX RUN MANAGEMENT, L.L.C. | History | New | 19,528 | 146 | 0.02% | — | 69 | +19,528 | New | Q4 2025 | Feb 11, 2026 |
| SIMPLEX TRADING, LLC | History | Reduced | 18,997 | 142 | 0.0% | 0.0% | 70 | -66,225 | -77.71% | Q4 2025 | Feb 11, 2026 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | History | Added to | 18,016 | 134 | 0.0% | 0.0% | 71 | +1,608 | 9.8% | Q4 2025 | Jan 28, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 18,036 | 134 | 0.0% | 0.0% | 72 | +1,305 | 7.8% | Q4 2025 | Feb 09, 2026 |
| Qube Research & Technologies Ltd | History | New | 16,582 | 124 | 0.0% | — | 73 | +16,582 | New | Q4 2025 | Feb 17, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 16,124 | 120 | 0.0% | 0.0% | 74 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| LAZARD ASSET MANAGEMENT LLC | History | Reduced | 13,736 | 102 | 0.0% | 0.0% | 75 | -6,025 | -30.49% | Q4 2025 | Feb 17, 2026 |
| Walleye Trading LLC | History | Reduced | 13,171 | 98 | 0.0% | 0.0% | 76 | -41,257 | -75.8% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA ADVISERS, LP | History | Reduced | 13,000 | 97 | 0.0% | 0.0% | 77 | -11,800 | -47.58% | Q4 2025 | Feb 17, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | New | 11,961 | 89 | 0.0% | — | 78 | +11,961 | New | Q4 2025 | Feb 17, 2026 |
| Brooklyn Investment Group | History | New | 11,732 | 85 | 0.0% | — | 79 | +11,732 | New | Q4 2025 | Feb 12, 2026 |
| Quantbot Technologies LP | History | New | 11,347 | 84 | 0.0% | — | 80 | +11,347 | New | Q4 2025 | Feb 10, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 11,122 | 83 | 0.0% | 0.0% | 81 | -45,091 | -80.21% | Q4 2025 | Feb 17, 2026 |
| MEITAV INVESTMENT HOUSE LTD | History | No change | 10,000 | 74 | 0.0% | 0.0% | 82 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| KLP KAPITALFORVALTNING AS | History | No change | 8,100 | 60 | 0.0% | 0.0% | 83 | 0 | 0.0% | Q4 2025 | Jan 28, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 5,667 | 42 | 0.0% | 0.0% | 84 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Quarry LP | History | New | 2,409 | 18 | 0.0% | — | 85 | +2,409 | New | Q4 2025 | Feb 13, 2026 |
| CITIGROUP INC | History | Reduced | 1,334 | 9 | 0.0% | 0.0% | 86 | -972 | -42.15% | Q4 2025 | Feb 13, 2026 |
| SBI Securities Co., Ltd. | History | No change | 1,023 | 7 | 0.0% | 0.0% | 87 | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |
| BARCLAYS PLC | History | Added to | 679 | 5 | 0.0% | 0.0% | 89 | +557 | 456.56% | Q4 2025 | Feb 13, 2026 |
| WELLS FARGO & COMPANY/MN | History | Added to | 800 | 5 | 0.0% | 0.0% | 88 | +266 | 49.81% | Q4 2025 | Feb 13, 2026 |
| Crewe Advisors LLC | History | No change | 734 | 5 | 0.0% | 0.0% | 90 | 0 | 0.0% | Q4 2025 | Jan 16, 2026 |
| State of Wyoming | History | New | 544 | 4 | 0.0% | — | 91 | +544 | New | Q4 2025 | Feb 11, 2026 |
| ROYAL BANK OF CANADA | History | New | 512 | 3 | 0.0% | — | 92 | +512 | New | Q4 2025 | Feb 17, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 383 | 2 | 0.0% | 0.0% | 93 | -260 | -40.44% | Q4 2025 | Feb 17, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 220 | 1 | 0.0% | 0.0% | 94 | +1 | 0.46% | Q4 2025 | Feb 10, 2026 |
| SCALAR GAUGE MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 2.09% | — | -441,742 | -100.0% | Q4 2025 | Feb 17, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | Closed out | 0 | 0 | — | 0.54% | — | -380,793 | -100.0% | Q4 2025 | Feb 13, 2026 |
| CEERA INVESTMENTS, LLC | History | Closed out | 0 | 0 | — | 0.93% | — | -319,027 | -100.0% | Q4 2025 | Feb 09, 2026 |
| Palogic Value Management, L.P. | History | Closed out | 0 | 0 | — | 0.44% | — | -117,423 | -100.0% | Q4 2025 | Feb 17, 2026 |
| Legato Capital Management LLC | History | Closed out | 0 | 0 | — | 0.11% | — | -109,711 | -100.0% | Q4 2025 | Feb 06, 2026 |
| Walleye Capital LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -34,700 | -100.0% | Q4 2025 | Feb 13, 2026 |
| Marex Group plc | History | Closed out | 0 | 0 | — | 0.0% | — | -20,000 | -100.0% | Q4 2025 | Feb 12, 2026 |
| State of Tennessee, Department of Treasury | History | Closed out | 0 | 0 | — | 0.0% | — | -13,617 | -100.0% | Q4 2025 | Feb 18, 2026 |
| Cresset Asset Management, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -10,468 | -100.0% | Q4 2025 | Feb 17, 2026 |
| WEXFORD CAPITAL LP | History | Closed out | 0 | 0 | — | 0.01% | — | -6,860 | -100.0% | Q4 2025 | Feb 13, 2026 |
| Larson Financial Group LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -2,686 | -100.0% | Q4 2025 | Feb 06, 2026 |
| CWM, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,139 | -100.0% | Q4 2025 | Jan 26, 2026 |
| Tower Research Capital LLC (TRC) | History | Closed out | 0 | 0 | — | 0.0% | — | -986 | -100.0% | Q4 2025 | Feb 17, 2026 |
| Smartleaf Asset Management LLC | History | New | 47 | 0 | — | — | — | +47 | New | Q4 2025 | Feb 13, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 36 | 0 | — | — | — | +36 | New | Q4 2025 | Mar 03, 2026 |
| FMR LLC | History | No change | 6 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | No change | 100 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| NewEdge Advisors, LLC | History | No change | 109 | 0 | — | 0.0% | — | 0 | 0.0% | Q4 2025 | Feb 18, 2026 |