SimilarwebSMWB
13F holders, Q4 2025 (December 31)98holders +4
15new positions
12sold out
6famous investors
$7.48avg. 13F price*
At the end of Q4 2025, 98 institutions reported holding Similarweb Ltd. (SMWB) in their 13F filings, up 4 from Q3 2025. 15 opened new positions and 12 sold out. The largest holders were Naspers Ltd. ($83.7M), Phoenix Financial Ltd. ($32.1M) and Menora Mivtachim Holdings LTD. ($30.1M). 6 famous investors held it, including Cathie Wood (0.0% of ARK Investment Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Similarweb Ltd.
- CUSIP
- M84137104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 15 | $4.2M |
| Exits | 12 | $16.1M |
All 13F filers, Q3 2025 → Q4 2025: 4,120,866 shares bought and 3,464,566 shares sold, net +656,300 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 98 holders
| Naspers Ltd. | 18.06% | No change | 11,173,265 | $83.7M |
| Phoenix Financial Ltd. | 0.35% | Add +43.2% | 4,285,786 | $32.1M |
| Menora Mivtachim Holdings LTD. | 0.14% | Add +25.2% | 4,015,494 | $30.1M |
| Migdal Insurance & Financial Holdings Ltd. | 0.20% | No change | 3,106,157 | $23.3M |
| ION Crossover Partners Ltd | 29.31% | — | 3,030,826 | $22.7M |
| Wellington Management Group LLP | 0.00% | Add +22.1% | 3,001,433 | $22.5M |
| Ulysses Management LLC | 5.89% | No change | 2,998,474 | $22.5M |
| Penn Capital Management Company, LLC | 0.95% | Reduce -3.5% | 1,588,680 | $11.9M |
| Nuveen, LLC | 0.00% | Add +2.5% | 1,520,398 | $11.4M |
| Y.D. More Investments Ltd | 0.40% | Reduce -1.0% | 1,171,298 | $8.4M |
| BlackRock, Inc. | 0.00% | Add +3.3% | 976,514 | $7.3M |
| CenterBook Partners LP | 0.35% | Reduce -18.6% | 960,996 | $7.2M |
| New York State Common Retirement Fund | 0.01% | Add +0.4% | 852,915 | $6.4M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Reduce -15.4% | 799,222 | $6.0M |
| S Squared Technology, LLC | 2.25% | Add +12.9% | 775,161 | $5.8M |
| Alpha Family Trust | 2.25% | No change | 658,935 | $4.9M |
| HERALD INVESTMENT MANAGEMENT Ltd | 0.63% | Add +7.6% | 645,465 | $4.9M |
| First Eagle Investment Management, LLC | 0.01% | Add +18.5% | 645,647 | $4.8M |
| Royce & Associates LP | 0.04% | Add +8.7% | 537,406 | $4.0M |
| UBS Group AG | 0.00% | Add +71.4% | 536,549 | $4.0M |
| Portolan Capital Management, LLC | 0.20% | Reduce -58.2% | 492,861 | $3.7M |
| Sphera Management Technology Funds Ltd | 1.88% | Add +3.7% | 480,000 | $3.6M |
| State Street Corp. | 0.00% | Add +16.3% | 370,001 | $2.8M |
| Renaissance Technologies | 0.00% | Reduce -0.7% | 361,473 | $2.7M |
| Millennium Management | 0.00% | Reduce -30.0% | 357,807 | $2.7M |
| Marshall Wace, LLP | 0.00% | Add +25.4% | 292,483 | $2.2M |
| Morgan Stanley | 0.00% | Reduce -14.3% | 256,660 | $1.9M |
| P.A.W. Capital Corp. | 4.08% | No change | 240,000 | $1.8M |
| ARK Investment Management | 0.01% | Add +2.8% | 236,425 | $1.8M |
| Lavelle Capital LP | 0.96% | — | 202,727 | $1.5M |
| Citadel Advisors | 0.00% | Reduce -23.3% | 200,114 | $1.5M |
| Jane Street Group, LLC | 0.00% | Add +22.4% | 186,208 | $1.4M |
| Persistent Asset Partners Ltd | 0.65% | New | 180,000 | $1.3M |
| Nano Cap New Millennium Growth Fund L P | 1.07% | — | 167,500 | $1.3M |
| Acadian Asset Management LLC | 0.00% | Reduce -10.8% | 158,411 | $1.2M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -2.2% | 148,339 | $1.1M |
| Group One Trading LLC | 0.03% | Add +257.2% | 147,063 | $1.1M |
| CDC Financial, Inc. | 0.98% | — | 141,723 | $1.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -3.0% | 138,422 | $1.0M |
| Numerai GP LLC | 0.11% | New | 117,949 | $883K |
| Trexquant Investment LP | 0.01% | Reduce -21.1% | 108,038 | $809K |
| Oppenheimer & Co. Inc. | 0.01% | Reduce -10.3% | 89,390 | $670K |
| Point72 Asset Management | 0.00% | Add +0.4% | 89,149 | $668K |
| Swiss National Bank | 0.00% | No change | 87,474 | $655K |
| Northern Trust Corp. | 0.00% | Add +1.6% | 80,549 | $603K |
| Sei Investments Co. | 0.00% | New | 76,702 | $574K |
| Blair William & Co. | 0.00% | Reduce -30.8% | 71,044 | $532K |
| Jump Financial, LLC | 0.01% | Add +37.6% | 63,321 | $474K |
| Engineers Gate Manager LP | 0.01% | Reduce -33.5% | 62,800 | $470K |
| Public Employees Retirement System of Ohio | 0.00% | Add +29.4% | 60,419 | $453K |
| HRT Financial LP | 0.00% | Add +24.0% | 58,354 | $437K |
| Tidal Investments LLC | 0.00% | Reduce -5.0% | 58,296 | $437K |
| Goldman Sachs Group Inc. | 0.00% | Add +0.6% | 57,834 | $433K |
| Legal & General Group Plc | 0.00% | Add +30.5% | 56,620 | $424K |
| California State Teachers Retirement System | 0.00% | Reduce -2.9% | 48,217 | $361K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 43,261 | $324K |
| PDT Partners, LLC | 0.02% | No change | 40,794 | $306K |
| Verition Fund Management LLC | 0.00% | Reduce -47.0% | 35,844 | $268K |
| PharVision Advisers, LLC | 0.14% | New | 35,684 | $267K |
| Vanguard Group Inc. | 0.00% | No change | 35,291 | $264K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +50.2% | 31,592 | $237K |
| Pathstone Holdings, LLC | 0.00% | No change | 30,830 | $231K |
| Federated Hermes, Inc. | 0.00% | Reduce -3.2% | 30,000 | $225K |
| ExodusPoint Capital Management, LP | 0.00% | New | 29,931 | $224K |
| D. E. Shaw & Co. | 0.00% | Reduce -18.0% | 28,376 | $213K |
| JPMorgan Chase & Co. | 0.00% | Reduce -5.9% | 20,249 | $152K |
| Fox Run Management, L.L.C. | 0.02% | New | 19,528 | $146K |
| Simplex Trading, LLC | 0.00% | Reduce -77.7% | 18,997 | $142K |
| Teacher Retirement System of Texas | 0.00% | Add +9.8% | 18,016 | $135K |
| Geode Capital Management, LLC | 0.00% | Add +7.8% | 18,036 | $135K |
| Qube Research & Technologies Ltd | 0.00% | New | 16,582 | $124K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 16,124 | $121K |
| Lazard Asset Management LLC | 0.00% | Reduce -30.5% | 13,736 | $103K |
| Two Sigma Advisers, LP | 0.00% | Reduce -47.6% | 13,000 | $97K |
| Boothbay Fund Management, LLC | 0.00% | New | 11,961 | $90K |
| Brooklyn Investment Group | 0.00% | New | 11,732 | $85K |
| Quantbot Technologies LP | 0.00% | New | 11,347 | $85K |
| Bank of America Corp. | 0.00% | Reduce -80.2% | 11,122 | $83K |
| Meitav Investment House Ltd. | 0.00% | No change | 10,000 | $75K |
| KLP Kapitalforvaltning As | 0.00% | No change | 8,100 | $61K |
| Deutsche Bank AG | 0.00% | No change | 5,667 | $42K |
| Quarry LP | 0.00% | New | 2,409 | $18K |
| Citigroup Inc. | 0.00% | Reduce -42.1% | 1,334 | $10K |
| PEAK6 LLC | 0.00% | Reduce -97.6% | 1,098 | $8K |
| SBI Securities Co., Ltd. | 0.00% | No change | 1,023 | $8K |
| Walleye Trading LLC | 0.00% | Reduce -90.2% | 871 | $7K |
| Wells Fargo & Company | 0.00% | Add +49.8% | 800 | $6K |
| Crewe Advisors LLC | 0.00% | No change | 734 | $5K |
| Barclays PLC | 0.00% | Add +456.6% | 679 | $5K |
| State of Wyoming | 0.00% | New | 544 | $4K |
| Royal Bank of Canada | 0.00% | Reduce -68.2% | 512 | $3K |
| Osaic Holdings, Inc. | 0.00% | Reduce -40.4% | 383 | $3K |
| BNP Paribas Financial Markets | 0.00% | Add +0.5% | 220 | $2K |
| NewEdge Advisors, LLC | 0.00% | No change | 109 | $816 |
| Jones Financial Companies LLLP | 0.00% | No change | 100 | $749 |
| Smartleaf Asset Management LLC | 0.00% | New | 47 | $350 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 18 | $135 |
| FMR LLC | 0.00% | No change | 6 | $45 |
"% of holder's portfolio" is SMWB's weight in each manager's 13F, not the share of Similarweb Ltd. the manager owns.