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, Q1 2022
Institutional positions in Similarweb Ltd. as of Mar 31, 2022. 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
- 43
- −2 vs. Q4 2021
- Shares held
- 28.3M
- +363.2K (+1.3%) vs. Q4 2021
- Total value
- $366.7M
- −$133.9M (−26.7%) vs. Q4 2021
- New holders
- 6
- 13 more added
- Sold out
- 8
- 14 more reduced
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Similarweb Ltd.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Naspers Ltd | 11,173,265 | $144.7M | 14.07% | 00.0% | Unchanged |
| ION Crossover Partners Ltd | 5,772,183 | $74.8M | 33.36% | 00.0% | Unchanged |
| Ulysses Management LLC | 2,046,605 | $26.5M | 6.00% | +568,271+38.4% | Added |
| Alpha Family Trust | 1,681,777 | $21.8M | 8.84% | 00.0% | Unchanged |
| Migdal Insurance & Financial Holdings Ltd. | 1,646,950 | $21.3M | 0.37% | −37,703−2.2% | Reduced |
| Bamco Inc | 1,162,574 | $15.1M | 0.04% | −179,226−13.4% | Reduced |
| Millennium Management LLC | 937,421 | $12.1M | 0.01% | +324,290+52.9% | Added |
| Meitav Dash Investments Ltd | 550,821 | $7.09M | 0.11% | +227,059+70.1% | Added |
| BlackRock Inc. | 470,156 | $6.09M | 0.00% | −107,923−18.7% | Reduced |
| Macquarie Group Ltd | 398,165 | $5.16M | 0.00% | −206,747−34.2% | Reduced |
| Premier Fund Managers Ltd | 342,796 | $4.53M | 0.16% | +342,796 | New |
| Allspring Global Investments Holdings, LLC | 311,270 | $4.03M | 0.01% | −3,910−1.2% | Reduced |
| Blair William & Co | 309,863 | $4.01M | 0.01% | +1,502+0.5% | Added |
| Old Well Partners, LLC | 251,488 | $3.26M | 2.19% | +42,578+20.4% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 159,540 | $2.07M | 0.01% | +6,672+4.4% | Added |
| Marshall Wace, LLP | 140,517 | $1.82M | 0.00% | −3,736−2.6% | Reduced |
| Tudor Investment Corp Et Al | 128,818 | $1.67M | 0.04% | −55,354−30.1% | Reduced |
| Citadel Advisors LLC | 118,401 | $1.53M | 0.00% | −13,358−10.1% | Reduced |
| Ghisallo Capital Management LLC | 115,000 | $1.49M | 0.16% | −115,734−50.2% | Reduced |
| Phoenix Holdings Ltd. | 109,953 | $1.42M | 0.02% | +51,775+89.0% | Added |
| Arena Capital Advisors, LLC- CA | 98,235 | $1.27M | 0.19% | +38,235+63.7% | Added |
| Wells Fargo & Company | 72,928 | $945.0K | 0.00% | +4,026+5.8% | Added |
| Ameriprise Financial Inc | 64,200 | $831.0K | 0.00% | 00.0% | Unchanged |
| Sage Rhino Capital LLC | 49,116 | $636.0K | 0.19% | 00.0% | Unchanged |
| Bank of America Corp | 36,822 | $477.0K | 0.00% | +10,503+39.9% | Added |
| ETF Managers Group, LLC | 20,735 | $274.0K | 0.01% | −1,624−7.3% | Reduced |
| Yarbrough Capital, LLC | 20,783 | $269.0K | 0.02% | +3,583+20.8% | Added |
| Morgan Stanley | 14,997 | $194.0K | 0.00% | +3,797+33.9% | Added |
| Susquehanna International Group, LLP | 13,993 | $181.0K | 0.00% | −5,497−28.2% | Reduced |
| Engineers Gate Manager LP | 12,759 | $165.0K | 0.01% | +12,759 | New |
| CAPROCK Group, Inc. | 12,500 | $162.0K | 0.02% | 00.0% | Unchanged |
| RBF Capital, LLC | 12,000 | $158.0K | 0.01% | +12,000 | New |
| Occudo Quantitative Strategies LP | 12,153 | $157.0K | 0.01% | +12,153 | New |
| UBS Group AG | 11,141 | $144.0K | 0.00% | +9,400+539.9% | Added |
| Chicago Capital, LLC | 10,819 | $140.0K | 0.01% | 00.0% | Unchanged |
| Walleye Trading LLC | 9,193 | $119.0K | 0.00% | +9,193 | New |
| Citigroup Inc | 6,884 | $89.0K | 0.00% | −1,827−21.0% | Reduced |
| Canada Pension Plan Investment Board | 4,500 | $58.0K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 447 | $6.00K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 300 | $4.00K | 0.00% | −7,321−96.1% | Reduced |
| FMR LLC | 208 | $3.00K | 0.00% | −432,758−100.0% | Reduced |
| Simplex Trading, LLC | 169 | $2.00K | 0.00% | +169 | New |
| Royal Bank of Canada | 100 | $1.00K | 0.00% | 00.0% | Unchanged |
| Alpha Paradigm Partners, LLC | 0 | $0 | 0.00% | −32,594−100.0% | Sold out |
| Eagle Global Advisors LLC | 0 | $0 | 0.00% | −31,100−100.0% | Sold out |
| G2 Investment Partners Management LLC | 0 | $0 | 0.00% | −28,046−100.0% | Sold out |
| Laurion Capital Management LP | 0 | $0 | 0.00% | −25,700−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −12,224−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −11,432−100.0% | Sold out |
| Harel Insurance Investments & Financial Services Ltd. | 0 | $0 | 0.00% | −3,657−100.0% | Sold out |
| Amplius Wealth Advisors, LLC | 0 | $0 | 0.00% | −47−100.0% | Sold out |