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, Q4 2021
Institutional positions in Similarweb Ltd. as of Dec 31, 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
- 45
- +11 vs. Q3 2021
- Shares held
- 27.9M
- +13.4M (+92.5%) vs. Q3 2021
- Total value
- $500.6M
- +$196.7M (+64.7%) vs. Q3 2021
- New holders
- 23
- 10 more added
- Sold out
- 12
- 6 more reduced
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Similarweb Ltd.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Naspers Ltd | 11,173,265 | $200.1M | 11.36% | +11,173,265 | New |
| ION Crossover Partners Ltd | 5,772,183 | $103.4M | 26.87% | 00.0% | Unchanged |
| Migdal Insurance & Financial Holdings Ltd. | 1,684,653 | $30.2M | 0.29% | +789,723+88.2% | Added |
| Alpha Family Trust | 1,681,777 | $30.1M | 9.89% | 00.0% | Unchanged |
| Ulysses Management LLC | 1,478,334 | $26.5M | 4.57% | +1,478,334 | New |
| Bamco Inc | 1,341,800 | $24.0M | 0.05% | +805,858+150.4% | Added |
| Millennium Management LLC | 613,131 | $11.0M | 0.01% | +237,781+63.3% | Added |
| Macquarie Group Ltd | 604,912 | $10.8M | 0.01% | −4,622−0.8% | Reduced |
| BlackRock Inc. | 578,079 | $10.4M | 0.00% | +3,322+0.6% | Added |
| FMR LLC | 432,966 | $7.75M | 0.00% | −1,472,388−77.3% | Reduced |
| Meitav Dash Investments Ltd | 323,762 | $5.79M | 0.09% | +323,762 | New |
| Allspring Global Investments Holdings, LLC | 315,180 | $5.64M | 0.01% | +315,180 | New |
| Blair William & Co | 308,361 | $5.52M | 0.02% | +308,361 | New |
| Ghisallo Capital Management LLC | 230,734 | $4.13M | 0.21% | 00.0% | Unchanged |
| Old Well Partners, LLC | 208,910 | $3.74M | 2.31% | +208,910 | New |
| Tudor Investment Corp Et Al | 184,172 | $3.30M | 0.06% | −1,303−0.7% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 152,868 | $2.74M | 0.01% | −2,844−1.8% | Reduced |
| Marshall Wace, LLP | 144,253 | $2.58M | 0.01% | +95,231+194.3% | Added |
| Citadel Advisors LLC | 131,759 | $2.36M | 0.00% | +93,221+241.9% | Added |
| Wells Fargo & Company | 68,902 | $1.23M | 0.00% | +68,902 | New |
| Ameriprise Financial Inc | 64,200 | $1.15M | 0.00% | +64,200 | New |
| Arena Capital Advisors, LLC- CA | 60,000 | $1.07M | 0.10% | +28,557+90.8% | Added |
| Phoenix Holdings Ltd. | 58,178 | $1.04M | 0.02% | +58,178 | New |
| Sage Rhino Capital LLC | 49,116 | $880.0K | 0.25% | +49,116 | New |
| Alpha Paradigm Partners, LLC | 32,594 | $584.0K | 0.23% | +32,594 | New |
| Eagle Global Advisors LLC | 31,100 | $557.0K | 0.04% | +31,100 | New |
| G2 Investment Partners Management LLC | 28,046 | $502.0K | 0.09% | −69,636−71.3% | Reduced |
| Bank of America Corp | 26,319 | $471.0K | 0.00% | +26,319 | New |
| Laurion Capital Management LP | 25,700 | $460.0K | 0.01% | 00.0% | Unchanged |
| ETF Managers Group, LLC | 22,359 | $395.0K | 0.01% | +22,359 | New |
| Susquehanna International Group, LLP | 19,490 | $349.0K | 0.00% | +19,490 | New |
| Yarbrough Capital, LLC | 17,200 | $308.0K | 0.02% | +17,200 | New |
| CAPROCK Group, Inc. | 12,500 | $224.0K | 0.02% | +12,500 | New |
| Squarepoint Ops LLC | 12,224 | $219.0K | 0.00% | +12,224 | New |
| Jane Street Group, LLC | 11,432 | $205.0K | 0.00% | +11,432 | New |
| Morgan Stanley | 11,200 | $201.0K | 0.00% | +600+5.7% | Added |
| Chicago Capital, LLC | 10,819 | $194.0K | 0.01% | +10,819 | New |
| Citigroup Inc | 8,711 | $156.0K | 0.00% | −1,085−11.1% | Reduced |
| JPMorgan Chase & Co | 7,621 | $136.0K | 0.00% | +7,321+2,440.3% | Added |
| Canada Pension Plan Investment Board | 4,500 | $81.0K | 0.00% | +4,500 | New |
| Harel Insurance Investments & Financial Services Ltd. | 3,657 | $65.0K | 0.00% | +3,657 | New |
| UBS Group AG | 1,741 | $31.0K | 0.00% | +1,294+289.5% | Added |
| Signaturefd, LLC | 447 | $8.00K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 100 | $2.00K | 0.00% | 00.0% | Unchanged |
| Amplius Wealth Advisors, LLC | 47 | $0 | 0.00% | +47 | New |
| SOA Wealth Advisors, LLC. | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Capital Research Global Investors | 0 | $0 | 0.00% | −571,900−100.0% | Sold out |
| Ion Asset Management Ltd. | 0 | $0 | 0.00% | −394,480−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −130,450−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −103,380−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −42,738−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −39,710−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −20,295−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −10,623−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Altshuler Shaham Ltd | 0 | $0 | 0.00% | −9,410−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −227−100.0% | Sold out |