SimilarwebSMWB
13F holders, Q2 2025 (June 30)110holders +1
21new positions
19sold out
6famous investors
$8.04avg. 13F price*
At the end of Q2 2025, 110 institutions reported holding Similarweb Ltd. (SMWB) in their 13F filings, up 1 from Q1 2025. 21 opened new positions and 19 sold out. The largest holders were Naspers Ltd. ($87.6M), Migdal Insurance & Financial Holdings Ltd. ($23.6M) and Ulysses Management LLC ($23.5M). 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 Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 21 | $10.2M |
| Exits | 19 | $55.7M |
All 13F filers, Q1 2025 → Q2 2025: 6,525,460 shares bought and 10,360,961 shares sold, net −3,835,501 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 110 holders
| Naspers Ltd. | 12.30% | No change | 11,173,265 | $87.6M |
| Migdal Insurance & Financial Holdings Ltd. | 0.28% | Add +8.8% | 3,006,157 | $23.6M |
| Ulysses Management LLC | 5.07% | Add +9.1% | 2,998,474 | $23.5M |
| Phoenix Financial Ltd. | 0.28% | Reduce -37.0% | 1,629,185 | $21.1M |
| Menora Mivtachim Holdings LTD. | 0.10% | Add +3.6% | 2,326,742 | $18.2M |
| CenterBook Partners LP | 0.63% | Add +78.5% | 1,441,810 | $11.3M |
| Nuveen, LLC | 0.00% | Add +79.4% | 1,297,114 | $10.2M |
| Y.D. More Investments Ltd | 0.67% | Reduce -11.8% | 1,234,298 | $9.7M |
| Scalar Gauge Management, LLC | 5.00% | Reduce -8.0% | 1,116,343 | $8.8M |
| Wellington Management Group LLP | 0.00% | Add +4.9% | 932,575 | $7.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | Add +14.2% | 920,671 | $7.2M |
| Morgan Stanley | 0.00% | Add +168.3% | 913,261 | $7.2M |
| Citadel Advisors | 0.01% | Add +76.0% | 880,265 | $6.9M |
| Alpha Family Trust | 3.31% | No change | 851,669 | $6.7M |
| BlackRock, Inc. | 0.00% | Add +2.2% | 849,454 | $6.7M |
| Portolan Capital Management, LLC | 0.36% | Add +96.5% | 727,592 | $5.7M |
| S Squared Technology, LLC | 2.27% | Reduce -31.4% | 686,672 | $5.4M |
| HERALD INVESTMENT MANAGEMENT Ltd | 0.70% | Add +100.0% | 600,000 | $4.7M |
| Cubist Systematic Strategies, LLC | 0.04% | Add +124.0% | 415,590 | $3.3M |
| Penn Capital Management Company, LLC | 0.28% | New | 412,166 | $3.2M |
| Sphera Management Technology Funds Ltd | 1.94% | Add +35.8% | 402,878 | $3.2M |
| Renaissance Technologies | 0.00% | Add +27.8% | 355,573 | $2.8M |
| Ceera Investments, LLC | 0.77% | No change | 319,027 | $2.5M |
| State Street Corp. | 0.00% | Add +12.9% | 310,541 | $2.4M |
| Millennium Management | 0.00% | Add +1111.5% | 308,384 | $2.4M |
| Essex Investment Management Co. LLC | 0.37% | Reduce -0.7% | 260,927 | $2.0M |
| ARK Investment Management | 0.01% | Add +100.7% | 242,370 | $1.9M |
| P.A.W. Capital Corp. | 3.62% | Reduce -20.0% | 240,000 | $1.9M |
| Trexquant Investment LP | 0.02% | Reduce -8.0% | 196,676 | $1.5M |
| Jump Financial, LLC | 0.02% | New | 185,820 | $1.5M |
| Marshall Wace, LLP | 0.00% | Reduce -52.4% | 170,942 | $1.3M |
| First Eagle Investment Management, LLC | 0.00% | New | 169,505 | $1.3M |
| Ameriprise Financial Inc. | 0.00% | Reduce -1.6% | 143,478 | $1.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -37.5% | 132,218 | $1.0M |
| Susquehanna International Group, LLP | 0.00% | Add +331.1% | 130,794 | $1.0M |
| Point72 Asset Management | 0.00% | Add +98.8% | 118,200 | $927K |
| Y-Intercept (Hong Kong) Ltd | 0.02% | Add +277.4% | 117,831 | $924K |
| Palogic Value Management, L.P. | 0.40% | Add +12.4% | 117,423 | $921K |
| Qube Research & Technologies Ltd | 0.00% | New | 111,929 | $878K |
| Blair William & Co. | 0.00% | Add +23.7% | 108,083 | $847K |
| Oppenheimer & Co. Inc. | 0.01% | Reduce -0.6% | 104,389 | $818K |
| Engineers Gate Manager LP | 0.01% | Add +375.8% | 102,311 | $802K |
| Formula Growth Ltd. | 0.30% | New | 100,000 | $784K |
| Goldman Sachs Group Inc. | 0.00% | Add +372.3% | 98,715 | $774K |
| PDT Partners, LLC | 0.04% | Add +3.9% | 98,388 | $771K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +76.3% | 88,310 | $692K |
| Swiss National Bank | 0.00% | Add +9.8% | 87,474 | $686K |
| Verition Fund Management LLC | 0.00% | Add +461.6% | 86,870 | $681K |
| Northern Trust Corp. | 0.00% | No change | 82,926 | $650K |
| Gsa Capital Partners LLP | 0.05% | New | 82,740 | $649K |
| Two Sigma Investments, LP | 0.00% | Reduce -37.1% | 81,111 | $636K |
| Hood River Capital Management LLC | 0.01% | Add +20.7% | 78,446 | $615K |
| Legato Capital Management LLC | 0.07% | Reduce -0.3% | 77,816 | $610K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -72.1% | 75,603 | $593K |
| PEAK6 LLC | 0.02% | Add +52.6% | 68,935 | $540K |
| Simplex Trading, LLC | 0.01% | Add +63.1% | 65,770 | $515K |
| Tidal Investments LLC | 0.00% | Add +66.4% | 61,574 | $483K |
| HRT Financial LP | 0.00% | Add +137.5% | 58,245 | $456K |
| Jane Street Group, LLC | 0.00% | Add +206.4% | 52,269 | $410K |
| Two Sigma Advisers, LP | 0.00% | Add +42.2% | 51,900 | $407K |
| California State Teachers Retirement System | 0.00% | Add +29.6% | 49,654 | $389K |
| Federated Hermes, Inc. | 0.00% | Add +52.4% | 48,000 | $376K |
| BNP Paribas Financial Markets | 0.00% | Reduce -40.5% | 43,914 | $344K |
| Petrus Trust Company, LTA | 0.03% | New | 42,211 | $331K |
| Voloridge Investment Management, LLC | 0.00% | Reduce -74.3% | 41,771 | $327K |
| D. E. Shaw & Co. | 0.00% | Add +142.2% | 39,113 | $307K |
| UBS Group AG | 0.00% | Reduce -40.2% | 39,044 | $306K |
| Legal & General Group Plc | 0.00% | No change | 38,139 | $299K |
| Jefferies Financial Group Inc. | 0.00% | New | 36,000 | $282K |
| Vanguard Group Inc. | 0.00% | No change | 35,291 | $277K |
| Magnetar Financial LLC | 0.00% | New | 34,633 | $272K |
| Pathstone Holdings, LLC | 0.00% | No change | 33,010 | $259K |
| SG Americas Securities, LLC | 0.00% | New | 32,580 | $255K |
| Cetera Investment Advisers | 0.00% | Reduce -23.5% | 30,726 | $241K |
| Man Group plc | 0.00% | New | 26,700 | $209K |
| Papamarkou Wellner Asset Management inc. | 0.11% | Reduce -56.8% | 21,199 | $166K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 21,032 | $165K |
| Teacher Retirement System of Texas | 0.00% | Add +6.2% | 19,494 | $153K |
| Nebula Research & Development LLC | 0.01% | New | 18,647 | $146K |
| ANTIPODES PARTNERS Ltd | 0.00% | Add +8.3% | 17,510 | $137K |
| Geode Capital Management, LLC | 0.00% | Reduce -50.4% | 16,731 | $131K |
| Fox Run Management, L.L.C. | 0.02% | New | 16,497 | $129K |
| MQS Management LLC | 0.07% | New | 15,881 | $125K |
| Lazard Asset Management LLC | 0.00% | Reduce -25.4% | 14,984 | $117K |
| Schonfeld Strategic Advisors LLC | 0.00% | Reduce -98.7% | 14,702 | $115K |
| Cresset Asset Management, LLC | 0.00% | Reduce -63.6% | 12,679 | $99K |
| Harbert Fund Advisors, LLC | 0.29% | New | 12,323 | $97K |
| Public Employees Retirement System of Ohio | 0.00% | Add +10.5% | 11,600 | $91K |
| Freedom Investment Management, Inc. | 0.01% | Reduce -0.7% | 11,471 | $90K |
| Bank of America Corp. | 0.00% | Reduce -91.8% | 11,461 | $90K |
| Aquatic Capital Management LLC | 0.00% | Add +1395.1% | 10,615 | $83K |
| Meitav Investment House Ltd. | 0.00% | Reduce -47.6% | 10,000 | $78K |
| Barclays PLC | 0.00% | Add +8.3% | 9,139 | $72K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 8,873 | $70K |
| KLP Kapitalforvaltning As | 0.00% | No change | 8,100 | $64K |
| Deutsche Bank AG | 0.00% | No change | 5,667 | $44K |
| Group One Trading LLC | 0.00% | New | 2,860 | $22K |
| Quarry LP | 0.01% | New | 2,674 | $21K |
| Citigroup Inc. | 0.00% | Reduce -0.4% | 2,410 | $19K |
| Royal Bank of Canada | 0.00% | No change | 1,300 | $10K |
| Raymond James Financial Inc. | 0.00% | New | 1,230 | $10K |
| Osaic Holdings, Inc. | 0.00% | Add +86.6% | 1,213 | $10K |
| Walleye Capital LLC | 0.00% | New | 763 | $6K |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 721 | $6K |
| Walleye Trading LLC | 0.00% | New | 706 | $6K |
| Wells Fargo & Company | 0.00% | Add +121.0% | 548 | $4K |
| NewEdge Advisors, LLC | 0.00% | No change | 109 | $855 |
| Jones Financial Companies LLLP | 0.00% | No change | 100 | $760 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -82.5% | 35 | $274 |
| FMR LLC | 0.00% | No change | 6 | $47 |
"% of holder's portfolio" is SMWB's weight in each manager's 13F, not the share of Similarweb Ltd. the manager owns.