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 2023
Institutional positions in Similarweb Ltd. as of Jun 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
- 49
- +7 vs. Q1 2023
- Shares held
- 39.3M
- −1.27M (−3.1%) vs. Q1 2023
- Total value
- $257.8M
- −$16.4M (−6.0%) vs. Q1 2023
- New holders
- 9
- 12 more added
- Sold out
- 2
- 16 more reduced
Compare with Q1 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, Q2 2023
Shares, value and share of portfolio for each institution holding Similarweb Ltd.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Viola Ventures V.C. Management 4 Ltd. | 11,230,877 | $73.7M | 15.31% | −804,927−6.7% | Reduced |
| Naspers Ltd | 11,173,265 | $73.3M | 7.08% | 00.0% | Unchanged |
| ION Crossover Partners Ltd | 5,772,183 | $37.9M | 86.00% | 00.0% | Unchanged |
| Portolan Capital Management, LLC | 2,684,874 | $17.6M | 1.56% | +385,800+16.8% | Added |
| Ulysses Management LLC | 2,283,228 | $15.0M | 3.85% | +15,961+0.7% | Added |
| Alpha Family Trust | 1,681,777 | $11.0M | 7.70% | 00.0% | Unchanged |
| Migdal Insurance & Financial Holdings Ltd. | 1,586,950 | $10.4M | 0.24% | 00.0% | Unchanged |
| Union Investments & Development Ltd. | 702,438 | $4.61M | 2.28% | −22,077−3.0% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 356,572 | $2.34M | 0.02% | −38,918−9.8% | Reduced |
| Old Well Partners, LLC | 263,657 | $1.73M | 1.56% | −2,700−1.0% | Reduced |
| Blair William & Co | 191,800 | $1.26M | 0.00% | −48,544−20.2% | Reduced |
| Ameriprise Financial Inc | 181,021 | $1.19M | 0.00% | +55,285+44.0% | Added |
| Tudor Investment Corp Et Al | 136,244 | $893.8K | 0.01% | 00.0% | Unchanged |
| Horrell Capital Management, Inc. | 136,000 | $892.0K | 0.27% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 84,144 | $552.0K | 0.06% | +16,265+24.0% | Added |
| Morgan Stanley | 82,468 | $541.0K | 0.00% | +14,086+20.6% | Added |
| Premier Fund Managers Ltd | 83,335 | $540.0K | 0.02% | −182,520−68.7% | Reduced |
| Marshall Wace, LLP | 74,426 | $488.2K | 0.00% | +4,586+6.6% | Added |
| Squarepoint Ops LLC | 70,538 | $462.7K | 0.00% | +70,538 | New |
| Millennium Management LLC | 67,439 | $442.4K | 0.00% | +27,651+69.5% | Added |
| Federated Hermes, Inc. | 55,000 | $360.8K | 0.00% | +15,000+37.5% | Added |
| Bamco Inc | 52,958 | $347.4K | 0.00% | −677−1.3% | Reduced |
| Venture Visionary Partners LLC | 38,050 | $249.6K | 0.01% | +38,050 | New |
| Renaissance Technologies LLC | 35,600 | $234.0K | 0.00% | +4,900+16.0% | Added |
| Veritable, L.P. | 35,000 | $229.6K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 24,747 | $162.3K | 0.00% | +1,081+4.6% | Added |
| Meitav Dash Investments Ltd | 25,000 | $162.2K | 0.00% | 00.0% | Unchanged |
| Corton Capital Inc. | 20,372 | $133.6K | 0.06% | +20,372 | New |
| Citadel Advisors LLC | 19,936 | $130.8K | 0.00% | −12,140−37.8% | Reduced |
| Yarbrough Capital, LLC | 17,200 | $112.8K | 0.01% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 14,907 | $97.8K | 0.00% | −18,631−55.6% | Reduced |
| Lazard Asset Management LLC | 14,386 | $94.0K | 0.00% | +7,657+113.8% | Added |
| D. E. Shaw & Co., Inc. | 13,200 | $86.6K | 0.00% | +13,200 | New |
| Jump Financial, LLC | 13,200 | $86.6K | 0.00% | +13,200 | New |
| Ergoteles LLC | 12,514 | $82.1K | 0.00% | −13,302−51.5% | Reduced |
| Qube Research & Technologies Ltd | 11,746 | $77.1K | 0.00% | −1,871−13.7% | Reduced |
| Occudo Quantitative Strategies LP | 11,460 | $75.2K | 0.01% | +11,460 | New |
| Delphia (USA) Inc. | 10,509 | $68.9K | 0.11% | +10,509 | New |
| PDT Partners, LLC | 10,237 | $67.2K | 0.01% | −4,019−28.2% | Reduced |
| Citigroup Inc | 3,481 | $22.8K | 0.00% | −268−7.1% | Reduced |
| Bank of America Corp | 3,411 | $22.4K | 0.00% | +2,079+156.1% | Added |
| Wells Fargo & Company | 3,138 | $20.6K | 0.00% | 00.0% | Unchanged |
| Harel Insurance Investments & Financial Services Ltd. | 2,043 | $13.0K | 0.00% | −1,167−36.4% | Reduced |
| Barclays PLC | 593 | $3.89K | 0.00% | +593 | New |
| Signaturefd, LLC | 447 | $2.93K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 300 | $1.97K | 0.00% | −386−56.3% | Reduced |
| Royal Bank of Canada | 192 | $1.00K | 0.00% | −240−55.6% | Reduced |
| Simplex Trading, LLC | 292 | $1.00K | 0.00% | +292 | New |
| FMR LLC | 6 | $39 | 0.00% | 00.0% | Unchanged |
| Phoenix Holdings Ltd. | 0 | $0 | 0.00% | −843,004−100.0% | Sold out |
| Stonebridge Capital Advisors LLC | 0 | $0 | 0.00% | −33−100.0% | Sold out |