Similarweb Ltd.
SMWB- Exchange
- NYSE
- Industry
- Services-Computer Programming, Data Processing, Etc.
- SEC CIK
- 0001842731
In the last 90 days, Similarweb Ltd. insiders filed 0 open-market purchases and 9 sales; 70 institutions reported holding it in 13F filings for Q2 2026, worth $312.1M in total; ARK Invest is the only superinvestor holding it.
13F holders, Q3 2023
Institutional positions in Similarweb Ltd. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 52
- +3 vs. Q2 2023
- Shares held
- 44.4M
- +5.11M (+13.0%) vs. Q2 2023
- Total value
- $286.9M
- +$29.1M (+11.3%) vs. Q2 2023
- New holders
- 14
- 13 more added
- Sold out
- 11
- 16 more reduced
Compare with Q2 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SMWB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 70 | $312.1M |
| Q1 2026 | 81 | $144.4M |
| Q4 2025 | 100 | $454.1M |
| Q3 2025 | 95 | $526.1M |
| Q2 2025 | 111 | $414.8M |
| Q1 2025 | 110 | $460.5M |
| Q4 2024 | 113 | $739.3M |
| Q3 2024 | 94 | $411.8M |
| Q2 2024 | 77 | $323.3M |
| Q1 2024 | 74 | $370.7M |
| Q4 2023 | 55 | $208.3M |
| Q3 2023 | 52 | $286.9M |
| Q2 2023 | 49 | $257.8M |
| Q1 2023 | 42 | $274.2M |
| Q4 2022 | 47 | $261.4M |
| Q3 2022 | 45 | $160.0M |
| Q2 2022 | 48 | $225.9M |
| Q1 2022 | 43 | $366.7M |
| Q4 2021 | 45 | $500.6M |
| Q3 2021 | 34 | $303.9M |
| Q2 2021 | 47 | $294.1M |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2023
Shares, value and share of portfolio for each institution holding Similarweb Ltd.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Viola Ventures V.C. Management 4 Ltd. | 11,230,787 | $72.8M | 21.79% | −900.0% | Reduced |
| Naspers Ltd | 11,173,265 | $72.4M | 6.15% | 00.0% | Unchanged |
| ION Crossover Partners Ltd | 5,772,183 | $37.4M | 83.75% | 00.0% | Unchanged |
| Phoenix Holdings Ltd. | 4,208,475 | $27.3M | 0.51% | +4,208,475 | New |
| Portolan Capital Management, LLC | 2,548,632 | $16.5M | 1.54% | −136,242−5.1% | Reduced |
| Ulysses Management LLC | 2,283,228 | $14.8M | 4.19% | 00.0% | Unchanged |
| Alpha Family Trust | 1,681,777 | $10.9M | 8.29% | 00.0% | Unchanged |
| Migdal Insurance & Financial Holdings Ltd. | 1,586,950 | $10.3M | 0.22% | 00.0% | Unchanged |
| Y.D. More Investments Ltd | 1,511,263 | $8.96M | 1.83% | +1,511,263 | New |
| ARK Investment Management LLCSuperinvestorARK Invest | 310,196 | $2.01M | 0.02% | −46,376−13.0% | Reduced |
| Old Well Partners, LLC | 253,357 | $1.64M | 1.42% | −10,300−3.9% | Reduced |
| BlackRock Inc. | 223,612 | $1.45M | 0.00% | +223,612 | New |
| Ameriprise Financial Inc | 179,420 | $1.16M | 0.00% | −1,601−0.9% | Reduced |
| 1492 Capital Management LLC | 150,750 | $976.9K | 0.63% | +150,750 | New |
| Blair William & Co | 145,036 | $939.8K | 0.00% | −46,764−24.4% | Reduced |
| Tudor Investment Corp Et Al | 136,243 | $882.9K | 0.01% | −10.0% | Reduced |
| Horrell Capital Management, Inc. | 136,000 | $881.0K | 0.29% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 87,722 | $568.0K | 0.05% | +3,578+4.3% | Added |
| Morgan Stanley | 85,801 | $556.0K | 0.00% | +3,333+4.0% | Added |
| Squarepoint Ops LLC | 61,697 | $399.8K | 0.00% | −8,841−12.5% | Reduced |
| State Street Corp | 60,600 | $392.7K | 0.00% | +60,600 | New |
| Swiss National Bank | 60,374 | $391.2K | 0.00% | +60,374 | New |
| Federated Hermes, Inc. | 55,000 | $356.4K | 0.00% | 00.0% | Unchanged |
| Bamco Inc | 53,951 | $349.6K | 0.00% | +993+1.9% | Added |
| Premier Fund Managers Ltd | 44,517 | $255.0K | 0.01% | −38,818−46.6% | Reduced |
| Marshall Wace, LLP | 39,007 | $252.8K | 0.00% | −35,419−47.6% | Reduced |
| Renaissance Technologies LLC | 35,900 | $233.0K | 0.00% | +300+0.8% | Added |
| Pathstone Family Office, LLC | 35,000 | $226.8K | 0.00% | +35,000 | New |
| UBS Group AG | 26,821 | $173.8K | 0.00% | +2,074+8.4% | Added |
| Millennium Management LLC | 25,842 | $167.5K | 0.00% | −41,597−61.7% | Reduced |
| Vanguard Group Inc | 25,160 | $163.0K | 0.00% | +25,160 | New |
| California State Teachers Retirement System | 24,417 | $158.2K | 0.00% | +24,417 | New |
| Corton Capital Inc. | 21,595 | $139.9K | 0.07% | +1,223+6.0% | Added |
| Meitav Dash Investments Ltd | 25,000 | $138.5K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 20,617 | $133.6K | 0.00% | +8,871+75.5% | Added |
| Legal & General Group Plc | 18,755 | $121.5K | 0.00% | +18,755 | New |
| Credit Suisse AG | 15,087 | $97.8K | 0.00% | +15,087 | New |
| Occudo Quantitative Strategies LP | 14,256 | $92.4K | 0.01% | +2,796+24.4% | Added |
| D. E. Shaw & Co., Inc. | 10,203 | $66.1K | 0.00% | −2,997−22.7% | Reduced |
| Barclays PLC | 4,966 | $32.2K | 0.00% | +4,373+737.4% | Added |
| Tower Research Capital LLC (TRC) | 4,798 | $31.1K | 0.00% | +4,798 | New |
| Antipodes Partners Ltd | 4,192 | $24.0K | 0.00% | +4,192 | New |
| Wells Fargo & Company | 3,138 | $20.3K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 3,020 | $19.6K | 0.00% | −461−13.2% | Reduced |
| JPMorgan Chase & Co | 1,869 | $12.1K | 0.00% | +1,569+523.0% | Added |
| Bank of America Corp | 1,818 | $11.8K | 0.00% | −1,593−46.7% | Reduced |
| Harel Insurance Investments & Financial Services Ltd. | 1,720 | $11.0K | 0.00% | −323−15.8% | Reduced |
| Lazard Asset Management LLC | 1,200 | $7.00K | 0.00% | −13,186−91.7% | Reduced |
| Royal Bank of Canada | 375 | $2.00K | 0.00% | +183+95.3% | Added |
| Simplex Trading, LLC | 351 | $2.00K | 0.00% | +59+20.2% | Added |
| First Manhattan Co | 11 | $71 | 0.00% | +11 | New |
| FMR LLC | 9 | $58 | 0.00% | +3+50.0% | Added |
| Union Investments & Development Ltd. | 0 | $0 | 0.00% | −702,438−100.0% | Sold out |
| Venture Visionary Partners LLC | 0 | $0 | 0.00% | −38,050−100.0% | Sold out |
| Veritable, L.P. | 0 | $0 | 0.00% | −35,000−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −19,936−100.0% | Sold out |
| Yarbrough Capital, LLC | 0 | $0 | 0.00% | −17,200−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −14,907−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −13,200−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −12,514−100.0% | Sold out |
| Delphia (USA) Inc. | 0 | $0 | 0.00% | −10,509−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −10,237−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −447−100.0% | Sold out |