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 2024
Institutional positions in Similarweb Ltd. as of Mar 31, 2024. 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
- 74
- +19 vs. Q4 2023
- Shares held
- 41.2M
- +2.67M (+6.9%) vs. Q4 2023
- Total value
- $370.7M
- +$162.4M (+77.9%) vs. Q4 2023
- New holders
- 23
- 21 more added
- Sold out
- 4
- 17 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Similarweb Ltd.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 6 | $54 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 109 | $981 | 0.00% | +109 | New |
| Royal Bank of Canada | 374 | $3.00K | 0.00% | −1−0.3% | Reduced |
| Tower Research Capital LLC (TRC) | 417 | $3.75K | 0.00% | +417 | New |
| Quarry LP | 718 | $6.46K | 0.00% | +718 | New |
| Wells Fargo & Company | 819 | $7.37K | 0.00% | 00.0% | Unchanged |
| Harel Insurance Investments & Financial Services Ltd. | 1,140 | $10.0K | 0.00% | −344−23.2% | Reduced |
| Citigroup Inc | 1,271 | $11.4K | 0.00% | −1,076−45.8% | Reduced |
| Qube Research & Technologies Ltd | 1,595 | $14.4K | 0.00% | −1,362−46.1% | Reduced |
| Antipodes Partners Ltd | 5,204 | $47.0K | 0.00% | −3,962−43.2% | Reduced |
| Deutsche Bank AG | 5,667 | $51.0K | 0.00% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 7,847 | $70.6K | 0.00% | +7,847 | New |
| Barclays PLC | 9,790 | $88.1K | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 10,700 | $96.3K | 0.00% | +10,700 | New |
| Counterpoint Mutual Funds LLC | 15,102 | $135.9K | 0.03% | +15,102 | New |
| Citadel Advisors LLC | 17,196 | $154.8K | 0.00% | −76,196−81.6% | Reduced |
| Credit Suisse AG | 19,050 | $171.4K | 0.00% | −7,486−28.2% | Reduced |
| Corton Capital Inc. | 20,252 | $182.3K | 0.07% | +1,186+6.2% | Added |
| Jane Street Group, LLC | 20,923 | $188.3K | 0.00% | +20,923 | New |
| JPMorgan Chase & Co | 21,661 | $194.9K | 0.00% | +19,792+1,059.0% | Added |
| Blair William & Co | 21,662 | $195.0K | 0.00% | +3,621+20.1% | Added |
| Meitav Dash Investments Ltd | 25,000 | $225.0K | 0.00% | 00.0% | Unchanged |
| Vanguard Group Inc | 25,160 | $226.4K | 0.00% | 00.0% | Unchanged |
| Occudo Quantitative Strategies LP | 25,973 | $233.8K | 0.04% | +8,555+49.1% | Added |
| Legal & General Group Plc | 26,053 | $234.5K | 0.00% | +6,098+30.6% | Added |
| California State Teachers Retirement System | 26,892 | $242.0K | 0.00% | +2,475+10.1% | Added |
| Jump Financial, LLC | 30,100 | $270.9K | 0.01% | +30,100 | New |
| XTX Topco Ltd | 30,214 | $271.9K | 0.04% | +30,214 | New |
| Trexquant Investment LP | 33,830 | $304.5K | 0.01% | +33,830 | New |
| Quadrature Capital Ltd | 34,593 | $311.0K | 0.01% | +34,593 | New |
| Pathstone Holdings, LLC | 35,000 | $315.0K | 0.00% | 00.0% | Unchanged |
| Premier Fund Managers Ltd | 44,517 | $400.0K | 0.02% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 49,134 | $442.2K | 0.01% | +39,088+389.1% | Added |
| Atom Investors LP | 53,899 | $485.1K | 0.06% | +53,899 | New |
| Swiss National Bank | 53,974 | $485.8K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 54,400 | $489.6K | 0.00% | +54,400 | New |
| Bank of America Corp | 54,488 | $490.4K | 0.00% | +50,760+1,361.6% | Added |
| Gsa Capital Partners LLP | 69,272 | $623.0K | 0.05% | −37,936−35.4% | Reduced |
| UBS Group AG | 70,142 | $631.3K | 0.00% | +19,936+39.7% | Added |
| Oppenheimer & Co Inc | 72,640 | $653.8K | 0.01% | +72,640 | New |
| Morgan Stanley | 88,333 | $795.0K | 0.00% | −2,206−2.4% | Reduced |
| D. E. Shaw & Co., Inc. | 91,389 | $822.5K | 0.00% | +45,187+97.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 91,915 | $827.2K | 0.00% | +91,915 | New |
| Squarepoint Ops LLC | 96,401 | $867.6K | 0.00% | −1,454−1.5% | Reduced |
| Legato Capital Management LLC | 98,532 | $886.8K | 0.11% | +98,532 | New |
| Calamos Advisors LLC | 98,885 | $890.0K | 0.00% | +98,885 | New |
| Renaissance Technologies LLC | 106,001 | $954.0K | 0.00% | −19,999−15.9% | Reduced |
| Horrell Capital Management, Inc. | 109,461 | $985.0K | 0.27% | −26,539−19.5% | Reduced |
| Circumference Group LLC | 109,461 | $985.1K | 1.02% | −26,539−19.5% | Reduced |
| Ameriprise Financial Inc | 113,093 | $1.02M | 0.00% | −42,571−27.3% | Reduced |
| State Street Corp | 126,617 | $1.14M | 0.00% | +8,800+7.5% | Added |
| Marshall Wace, LLP | 127,079 | $1.14M | 0.00% | +79,556+167.4% | Added |
| Two Sigma Investments, LP | 132,497 | $1.19M | 0.00% | +81,759+161.1% | Added |
| Old Well Partners, LLC | 156,419 | $1.41M | 1.25% | −90,998−36.8% | Reduced |
| Walleye Capital LLC | 183,494 | $1.65M | 0.02% | +183,494 | New |
| Ceera Investments, LLC | 187,833 | $1.69M | 0.74% | +187,833 | New |
| Millennium Management LLC | 233,244 | $2.10M | 0.00% | +99,154+73.9% | Added |
| Essex Investment Management Co LLC | 260,450 | $2.34M | 0.46% | +260,450 | New |
| BlackRock Inc. | 261,862 | $2.36M | 0.00% | +40,697+18.4% | Added |
| Nuveen Asset Management, LLC | 263,280 | $2.37M | 0.00% | +136,153+107.1% | Added |
| Roubaix Capital, LLC | 272,092 | $2.45M | 1.55% | +272,092 | New |
| Acadian Asset Management LLC | 275,417 | $2.47M | 0.01% | +268,099+3,663.6% | Added |
| S Squared Technology, LLC | 308,023 | $2.77M | 1.27% | +308,023 | New |
| Russell Investments Group, Ltd. | 313,318 | $2.82M | 0.00% | +313,318 | New |
| Scalar Gauge Management, LLC | 378,702 | $3.41M | 2.62% | +155,783+69.9% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 384,230 | $3.46M | 0.02% | +43,491+12.8% | Added |
| Y.D. More Investments Ltd | 1,314,263 | $11.8M | 2.10% | −197,000−13.0% | Reduced |
| Alpha Family Trust | 1,681,777 | $14.8M | 8.94% | 00.0% | Unchanged |
| Portolan Capital Management, LLC | 2,040,602 | $18.4M | 1.40% | +128,330+6.7% | Added |
| Migdal Insurance & Financial Holdings Ltd. | 2,107,541 | $19.0M | 0.30% | +520,591+32.8% | Added |
| Ulysses Management LLC | 2,283,228 | $20.5M | 4.45% | 00.0% | Unchanged |
| Phoenix Holdings Ltd. | 3,536,932 | $31.8M | 0.44% | −671,543−16.0% | Reduced |
| Naspers Ltd | 11,173,265 | $100.6M | 9.22% | 00.0% | Unchanged |
| Viola Ventures V.C. Management 4 Ltd. | 11,230,787 | $101.1M | 37.06% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −55,000−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −444−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −440−100.0% | Sold out |