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, Q2 2021
Institutional positions in Similarweb Ltd. as of Jun 30, 2021. 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
- 47
- +47 vs. Q1 2021
- Shares held
- 14.9M
- +14.9M vs. Q1 2021
- Total value
- $294.1M
- +$294.1M vs. Q1 2021
- New holders
- 47
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding Similarweb Ltd.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ION Crossover Partners Ltd | 5,772,183 | $113.7M | 27.60% | +5,772,183 | New |
| Alpha Family Trust | 1,686,832 | $33.2M | 10.46% | +1,686,832 | New |
| Ion Asset Management Ltd. | 1,051,753 | $20.7M | 2.55% | +1,051,753 | New |
| Luminus Management LLC | 808,015 | $15.9M | 2.45% | +808,015 | New |
| FMR LLC | 700,195 | $13.8M | 0.00% | +700,195 | New |
| BlackRock Inc. | 699,967 | $13.8M | 0.00% | +699,967 | New |
| Migdal Insurance & Financial Holdings Ltd. | 650,487 | $12.8M | 0.13% | +650,487 | New |
| Capital Research Global Investors | 571,900 | $11.3M | 0.00% | +571,900 | New |
| Bamco Inc | 517,962 | $10.2M | 0.02% | +517,962 | New |
| Millennium Management LLC | 417,776 | $8.23M | 0.01% | +417,776 | New |
| Ghisallo Capital Management LLC | 230,734 | $4.54M | 0.17% | +230,734 | New |
| Macquarie Group Ltd | 220,233 | $4.34M | 0.00% | +220,233 | New |
| Tudor Investment Corp Et Al | 218,956 | $4.31M | 0.09% | +218,956 | New |
| Holocene Advisors, LP | 150,000 | $2.96M | 0.02% | +150,000 | New |
| Marshall Wace, LLP | 133,439 | $2.63M | 0.01% | +133,439 | New |
| Citadel Advisors LLC | 119,100 | $2.35M | 0.00% | +119,100 | New |
| Woodline Partners LP | 104,000 | $2.05M | 0.04% | +104,000 | New |
| Zimmer Partners, LP | 100,000 | $1.97M | 0.03% | +100,000 | New |
| Davidson Kempner Capital Management LP | 100,000 | $1.97M | 0.02% | +100,000 | New |
| Caas Capital Management LP | 75,000 | $1.48M | 0.08% | +75,000 | New |
| Walleye Capital LLC | 63,874 | $1.26M | 0.05% | +63,874 | New |
| Balyasny Asset Management LLC | 60,000 | $1.18M | 0.01% | +60,000 | New |
| HBK Investments L P | 50,000 | $985.0K | 0.01% | +50,000 | New |
| Squarepoint Ops LLC | 40,000 | $788.0K | 0.01% | +40,000 | New |
| Arena Capital Advisors, LLC- CA | 40,000 | $788.0K | 0.07% | +40,000 | New |
| Norges Bank | 35,000 | $690.0K | 0.00% | +35,000 | New |
| Laurion Capital Management LP | 35,000 | $690.0K | 0.01% | +35,000 | New |
| Alyeska Investment Group, L.P. | 35,000 | $690.0K | 0.01% | +35,000 | New |
| Phoenix Holdings Ltd. | 30,000 | $591.0K | 0.01% | +30,000 | New |
| Noked Capital LTD | 30,000 | $591.0K | 0.15% | +30,000 | New |
| Noked Israel Ltd | 30,000 | $591.0K | 0.15% | +30,000 | New |
| Citigroup Inc | 27,919 | $550.0K | 0.00% | +27,919 | New |
| Man Group plc | 24,800 | $489.0K | 0.00% | +24,800 | New |
| Pentwater Capital Management LP | 17,000 | $335.0K | 0.00% | +17,000 | New |
| Federated Hermes, Inc. | 15,000 | $296.0K | 0.00% | +15,000 | New |
| Point72 Asset Management, L.P. | 12,174 | $240.0K | 0.00% | +12,174 | New |
| Gilder Gagnon Howe & Co LLC | 12,000 | $236.0K | 0.00% | +12,000 | New |
| Carmignac Gestion | 12,000 | $236.0K | 0.00% | +12,000 | New |
| Teacher Retirement System of Texas | 10,000 | $197.0K | 0.00% | +10,000 | New |
| Morgan Stanley | 8,900 | $175.0K | 0.00% | +8,900 | New |
| Rokos Capital Management LLP | 5,000 | $97.0K | 0.00% | +5,000 | New |
| Cubist Systematic Strategies, LLC | 2,137 | $42.0K | 0.00% | +2,137 | New |
| UBS Group AG | 2,000 | $39.0K | 0.00% | +2,000 | New |
| JPMorgan Chase & Co | 300 | $6.00K | 0.00% | +300 | New |
| Royal Bank of Canada | 100 | $2.00K | 0.00% | +100 | New |
| Point72 Hong Kong Ltd | 22 | $0 | 0.00% | +22 | New |
| Carolina Wealth Advisors, LLC | 23 | $0 | 0.00% | +23 | New |