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 |
|---|---|---|---|---|---|
| FMR LLC | 9 | $58 | 0.00% | +3+50.0% | Added |
| First Manhattan Co | 11 | $71 | 0.00% | +11 | New |
| 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 |
| Lazard Asset Management LLC | 1,200 | $7.00K | 0.00% | −13,186−91.7% | Reduced |
| Harel Insurance Investments & Financial Services Ltd. | 1,720 | $11.0K | 0.00% | −323−15.8% | Reduced |
| Bank of America Corp | 1,818 | $11.8K | 0.00% | −1,593−46.7% | Reduced |
| JPMorgan Chase & Co | 1,869 | $12.1K | 0.00% | +1,569+523.0% | Added |
| Citigroup Inc | 3,020 | $19.6K | 0.00% | −461−13.2% | Reduced |
| Wells Fargo & Company | 3,138 | $20.3K | 0.00% | 00.0% | Unchanged |
| Antipodes Partners Ltd | 4,192 | $24.0K | 0.00% | +4,192 | New |
| Tower Research Capital LLC (TRC) | 4,798 | $31.1K | 0.00% | +4,798 | New |
| Barclays PLC | 4,966 | $32.2K | 0.00% | +4,373+737.4% | Added |
| D. E. Shaw & Co., Inc. | 10,203 | $66.1K | 0.00% | −2,997−22.7% | Reduced |
| Occudo Quantitative Strategies LP | 14,256 | $92.4K | 0.01% | +2,796+24.4% | Added |
| Credit Suisse AG | 15,087 | $97.8K | 0.00% | +15,087 | New |
| Legal & General Group Plc | 18,755 | $121.5K | 0.00% | +18,755 | New |
| Qube Research & Technologies Ltd | 20,617 | $133.6K | 0.00% | +8,871+75.5% | Added |
| Meitav Dash Investments Ltd | 25,000 | $138.5K | 0.00% | 00.0% | Unchanged |
| Corton Capital Inc. | 21,595 | $139.9K | 0.07% | +1,223+6.0% | Added |
| California State Teachers Retirement System | 24,417 | $158.2K | 0.00% | +24,417 | New |
| Vanguard Group Inc | 25,160 | $163.0K | 0.00% | +25,160 | New |
| Millennium Management LLC | 25,842 | $167.5K | 0.00% | −41,597−61.7% | Reduced |
| UBS Group AG | 26,821 | $173.8K | 0.00% | +2,074+8.4% | Added |
| Pathstone Family Office, LLC | 35,000 | $226.8K | 0.00% | +35,000 | New |
| Renaissance Technologies LLC | 35,900 | $233.0K | 0.00% | +300+0.8% | Added |
| Marshall Wace, LLP | 39,007 | $252.8K | 0.00% | −35,419−47.6% | Reduced |
| Premier Fund Managers Ltd | 44,517 | $255.0K | 0.01% | −38,818−46.6% | Reduced |
| Bamco Inc | 53,951 | $349.6K | 0.00% | +993+1.9% | Added |
| Federated Hermes, Inc. | 55,000 | $356.4K | 0.00% | 00.0% | Unchanged |
| Swiss National Bank | 60,374 | $391.2K | 0.00% | +60,374 | New |
| State Street Corp | 60,600 | $392.7K | 0.00% | +60,600 | New |
| Squarepoint Ops LLC | 61,697 | $399.8K | 0.00% | −8,841−12.5% | Reduced |
| Morgan Stanley | 85,801 | $556.0K | 0.00% | +3,333+4.0% | Added |
| Gsa Capital Partners LLP | 87,722 | $568.0K | 0.05% | +3,578+4.3% | Added |
| Horrell Capital Management, Inc. | 136,000 | $881.0K | 0.29% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 136,243 | $882.9K | 0.01% | −10.0% | Reduced |
| Blair William & Co | 145,036 | $939.8K | 0.00% | −46,764−24.4% | Reduced |
| 1492 Capital Management LLC | 150,750 | $976.9K | 0.63% | +150,750 | New |
| Ameriprise Financial Inc | 179,420 | $1.16M | 0.00% | −1,601−0.9% | Reduced |
| BlackRock Inc. | 223,612 | $1.45M | 0.00% | +223,612 | New |
| Old Well Partners, LLC | 253,357 | $1.64M | 1.42% | −10,300−3.9% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 310,196 | $2.01M | 0.02% | −46,376−13.0% | Reduced |
| Y.D. More Investments Ltd | 1,511,263 | $8.96M | 1.83% | +1,511,263 | New |
| Migdal Insurance & Financial Holdings Ltd. | 1,586,950 | $10.3M | 0.22% | 00.0% | Unchanged |
| Alpha Family Trust | 1,681,777 | $10.9M | 8.29% | 00.0% | Unchanged |
| Ulysses Management LLC | 2,283,228 | $14.8M | 4.19% | 00.0% | Unchanged |
| Portolan Capital Management, LLC | 2,548,632 | $16.5M | 1.54% | −136,242−5.1% | Reduced |
| Phoenix Holdings Ltd. | 4,208,475 | $27.3M | 0.51% | +4,208,475 | New |
| ION Crossover Partners Ltd | 5,772,183 | $37.4M | 83.75% | 00.0% | Unchanged |
| Naspers Ltd | 11,173,265 | $72.4M | 6.15% | 00.0% | Unchanged |
| Viola Ventures V.C. Management 4 Ltd. | 11,230,787 | $72.8M | 21.79% | −900.0% | Reduced |
| 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 |