SimilarwebSMWB
13F holders, Q1 2025 (March 31)109holders −3
24new positions
26sold out
6famous investors
$8.27avg. 13F price*
At the end of Q1 2025, 109 institutions reported holding Similarweb Ltd. (SMWB) in their 13F filings, down 3 from Q4 2024. 24 opened new positions and 26 sold out. The largest holders were Naspers Ltd. ($92.4M), Migdal Insurance & Financial Holdings Ltd. ($22.8M) and Ulysses Management LLC ($22.7M). 6 famous investors held it, including Cathie Wood (0.0% of ARK Investment Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Similarweb Ltd.
- CUSIP
- M84137104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 24 | $33.3M |
| Exits | 26 | $38.3M |
All 13F filers, Q4 2024 → Q1 2025: 9,061,637 shares bought and 5,829,331 shares sold, net +3,232,306 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 109 holders
| Naspers Ltd. | 8.92% | No change | 11,173,265 | $92.4M |
| Migdal Insurance & Financial Holdings Ltd. | 0.32% | Add +61.3% | 2,762,557 | $22.8M |
| Ulysses Management LLC | 5.75% | Add +20.4% | 2,748,708 | $22.7M |
| Phoenix Financial Ltd. | 0.33% | Add +2.5% | 2,585,985 | $21.4M |
| Menora Mivtachim Holdings LTD. | 0.12% | Add +33.2% | 2,246,470 | $18.6M |
| Jennison Associates LLC | 0.01% | Add +2.9% | 1,892,110 | $15.6M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Add +109.1% | 1,410,826 | $11.7M |
| Y.D. More Investments Ltd | 1.01% | Reduce -3.4% | 1,399,863 | $11.6M |
| Scalar Gauge Management, LLC | 6.14% | Add +8.7% | 1,213,199 | $10.0M |
| Cooper Creek Partners Management LLC | 0.32% | New | 1,193,895 | $9.9M |
| Schonfeld Strategic Advisors LLC | 0.06% | Reduce -30.1% | 1,111,388 | $9.2M |
| S Squared Technology, LLC | 4.23% | Reduce -5.3% | 1,000,491 | $8.3M |
| Wellington Management Group LLP | 0.00% | New | 889,363 | $7.4M |
| Alpha Family Trust | 4.11% | Reduce -25.0% | 851,669 | $7.0M |
| BlackRock, Inc. | 0.00% | Add +5.9% | 831,068 | $6.9M |
| CenterBook Partners LP | 0.43% | Add +307.3% | 807,696 | $6.7M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | Add +19.0% | 806,174 | $6.7M |
| American Century Companies Inc. | 0.00% | New | 727,275 | $6.0M |
| Nuveen, LLC | 0.00% | — | 722,971 | $6.0M |
| Citadel Advisors | 0.00% | Add +94.5% | 500,000 | $4.1M |
| Victory Capital Management Inc. | 0.00% | Add +14.8% | 493,370 | $4.1M |
| Portolan Capital Management, LLC | 0.23% | Add +30.9% | 370,191 | $3.1M |
| Marshall Wace, LLP | 0.00% | Add +0.1% | 359,286 | $3.0M |
| Morgan Stanley | 0.00% | Add +6.7% | 340,377 | $2.8M |
| Ceera Investments, LLC | 0.91% | Add +22.8% | 319,027 | $2.6M |
| P.A.W. Capital Corp. | 6.14% | Reduce -25.0% | 300,000 | $2.5M |
| HERALD INVESTMENT MANAGEMENT Ltd | 0.46% | New | 300,000 | $2.5M |
| Sphera Management Technology Funds Ltd | 1.96% | Add +80.8% | 296,755 | $2.5M |
| Renaissance Technologies | 0.00% | Reduce -26.9% | 278,273 | $2.3M |
| State Street Corp. | 0.00% | Reduce -4.3% | 274,935 | $2.3M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -24.3% | 270,594 | $2.2M |
| Essex Investment Management Co. LLC | 0.45% | Reduce -0.8% | 262,814 | $2.2M |
| State of Tennessee, Department of Treasury | 0.01% | Add +3082.7% | 249,747 | $2.1M |
| Telemark Asset Management, LLC | 0.25% | Reduce -23.3% | 230,000 | $1.9M |
| Trexquant Investment LP | 0.02% | Add +104.5% | 213,683 | $1.8M |
| JPMorgan Chase & Co. | 0.00% | Add +12.8% | 211,618 | $1.8M |
| Cubist Systematic Strategies, LLC | 0.02% | Add +80.2% | 185,502 | $1.5M |
| Acadian Asset Management LLC | 0.00% | Reduce -79.2% | 185,065 | $1.5M |
| Voloridge Investment Management, LLC | 0.01% | New | 162,704 | $1.3M |
| Ameriprise Financial Inc. | 0.00% | New | 145,865 | $1.2M |
| Bank of America Corp. | 0.00% | Reduce -49.5% | 139,954 | $1.2M |
| Two Sigma Investments, LP | 0.00% | Reduce -49.5% | 129,063 | $1.1M |
| ARK Investment Management | 0.01% | Reduce -40.7% | 120,751 | $999K |
| Oppenheimer & Co. Inc. | 0.01% | Reduce -5.5% | 105,045 | $869K |
| Palogic Value Management, L.P. | 0.39% | New | 104,423 | $864K |
| PDT Partners, LLC | 0.06% | Add +151.3% | 94,671 | $783K |
| Blair William & Co. | 0.00% | Reduce -10.7% | 87,395 | $723K |
| Calamos Advisors LLC | 0.00% | Reduce -50.8% | 84,173 | $696K |
| Northern Trust Corp. | 0.00% | Add +25.1% | 82,926 | $686K |
| Lombard Odier Asset Management (USA) Corp | 0.28% | New | 80,000 | $662K |
| Swiss National Bank | 0.00% | Reduce -1.6% | 79,674 | $659K |
| Legato Capital Management LLC | 0.09% | Reduce -1.5% | 78,009 | $645K |
| BNP Paribas Financial Markets | 0.00% | Reduce -16.6% | 73,811 | $610K |
| UBS Group AG | 0.00% | Reduce -69.6% | 65,254 | $540K |
| Hood River Capital Management LLC | 0.01% | New | 65,000 | $538K |
| Bailard, Inc. | 0.01% | Add +34.8% | 61,256 | $507K |
| Point72 Asset Management | 0.00% | Reduce -37.1% | 59,469 | $492K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +214.8% | 50,092 | $414K |
| Papamarkou Wellner Asset Management inc. | 0.28% | New | 49,092 | $406K |
| Quantbot Technologies LP | 0.01% | Add +57.2% | 46,600 | $385K |
| PEAK6 LLC | 0.01% | New | 45,178 | $374K |
| Simplex Trading, LLC | 0.01% | New | 40,314 | $333K |
| Cetera Investment Advisers | 0.00% | New | 40,161 | $332K |
| California State Teachers Retirement System | 0.00% | No change | 38,298 | $317K |
| Legal & General Group Plc | 0.00% | Reduce -3.1% | 38,139 | $315K |
| Tidal Investments LLC | 0.00% | Reduce -8.9% | 37,006 | $306K |
| Two Sigma Advisers, LP | 0.00% | Reduce -16.3% | 36,500 | $302K |
| Vanguard Group Inc. | 0.00% | No change | 35,291 | $292K |
| Cresset Asset Management, LLC | 0.00% | Reduce -24.7% | 34,867 | $288K |
| Geode Capital Management, LLC | 0.00% | No change | 33,730 | $279K |
| Pathstone Holdings, LLC | 0.00% | No change | 33,010 | $273K |
| Federated Hermes, Inc. | 0.00% | New | 31,500 | $261K |
| Y-Intercept (Hong Kong) Ltd | 0.02% | New | 31,219 | $258K |
| Susquehanna International Group, LLP | 0.00% | New | 30,337 | $251K |
| Millennium Management | 0.00% | Reduce -76.5% | 25,454 | $211K |
| HRT Financial LP | 0.00% | Reduce -20.9% | 24,527 | $202K |
| Engineers Gate Manager LP | 0.00% | New | 21,503 | $178K |
| Quadrature Capital Ltd | 0.00% | Reduce -24.1% | 21,264 | $176K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +15.5% | 21,032 | $174K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -72.9% | 20,899 | $173K |
| LPL Financial LLC | 0.00% | New | 20,591 | $170K |
| Lazard Asset Management LLC | 0.00% | Reduce -73.7% | 20,092 | $166K |
| Meitav Investment House Ltd. | 0.00% | Add +48.5% | 19,075 | $158K |
| Teacher Retirement System of Texas | 0.00% | Add +70.1% | 18,362 | $152K |
| 272 Capital LP | 0.39% | New | 17,675 | $146K |
| Jane Street Group, LLC | 0.00% | New | 17,059 | $141K |
| ANTIPODES PARTNERS Ltd | 0.00% | No change | 16,166 | $134K |
| D. E. Shaw & Co. | 0.00% | Reduce -94.5% | 16,150 | $134K |
| Verition Fund Management LLC | 0.00% | Reduce -33.5% | 15,468 | $128K |
| Fullcircle Wealth LLC | 0.04% | New | 14,140 | $106K |
| Freedom Investment Management, Inc. | 0.01% | Reduce -14.5% | 11,551 | $96K |
| Keybank National Association | 0.00% | No change | 11,330 | $94K |
| Public Employees Retirement System of Ohio | 0.00% | Add +6.1% | 10,500 | $87K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 8,873 | $73K |
| Barclays PLC | 0.00% | Reduce -22.9% | 8,438 | $70K |
| KLP Kapitalforvaltning As | 0.00% | No change | 8,100 | $67K |
| Deutsche Bank AG | 0.00% | No change | 5,667 | $47K |
| Citigroup Inc. | 0.00% | Add +1.9% | 2,420 | $20K |
| Covestor Ltd | 0.01% | Reduce -3.4% | 2,203 | $18K |
| Royal Bank of Canada | 0.00% | No change | 1,300 | $11K |
"% of holder's portfolio" is SMWB's weight in each manager's 13F, not the share of Similarweb Ltd. the manager owns.