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 2025
Institutional positions in Similarweb Ltd. as of Jun 30, 2025. 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
- 111
- +1 vs. Q1 2025
- Shares held
- 51.8M
- −3.84M (−6.9%) vs. Q1 2025
- Total value
- $414.8M
- −$45.7M (−9.9%) vs. Q1 2025
- New holders
- 21
- 46 more added
- Sold out
- 20
- 28 more reduced
Compare with Q1 2025: 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 2025
Shares, value and share of portfolio for each institution holding Similarweb Ltd.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 6 | $47 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 35 | $274 | 0.00% | −165−82.5% | Reduced |
| Jones Financial Companies LLLP | 100 | $760 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 109 | $855 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 548 | $4.30K | 0.00% | +300+121.0% | Added |
| Walleye Trading LLC | 706 | $5.54K | 0.00% | +706 | New |
| Caitong International Asset Management Co., Ltd | 721 | $5.65K | 0.00% | +721 | New |
| Walleye Capital LLC | 763 | $5.98K | 0.00% | +763 | New |
| Advisor Group Holdings, Inc. | 1,213 | $9.51K | 0.00% | +563+86.6% | Added |
| Raymond James Financial Inc | 1,230 | $9.64K | 0.00% | +1,230 | New |
| Royal Bank of Canada | 1,300 | $10.0K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 2,410 | $18.9K | 0.00% | −10−0.4% | Reduced |
| Quarry LP | 2,674 | $21.0K | 0.00% | +2,674 | New |
| Group One Trading, L.P. | 2,860 | $22.4K | 0.00% | +2,860 | New |
| Deutsche Bank AG | 5,667 | $44.4K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 8,100 | $63.5K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 8,873 | $69.6K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 9,139 | $71.6K | 0.00% | +701+8.3% | Added |
| Meitav Dash Investments Ltd | 10,000 | $78.4K | 0.00% | −9,075−47.6% | Reduced |
| Aquatic Capital Management LLC | 10,615 | $83.2K | 0.00% | +9,905+1,395.1% | Added |
| Bank of America Corp | 11,461 | $89.9K | 0.00% | −128,493−91.8% | Reduced |
| Eqis Capital Management, Inc. | 11,471 | $89.9K | 0.01% | −80−0.7% | Reduced |
| Public Employees Retirement System of Ohio | 11,600 | $90.9K | 0.00% | +1,100+10.5% | Added |
| Harbert Fund Advisors, Inc. | 12,323 | $96.6K | 0.29% | +12,323 | New |
| Cresset Asset Management, LLC | 12,679 | $99.4K | 0.00% | −22,188−63.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 14,702 | $115.3K | 0.00% | −1,096,686−98.7% | Reduced |
| Lazard Asset Management LLC | 14,984 | $117.0K | 0.00% | −5,108−25.4% | Reduced |
| MQS Management LLC | 15,881 | $124.5K | 0.07% | +15,881 | New |
| Fox Run Management, L.L.C. | 16,497 | $129.3K | 0.02% | +16,497 | New |
| Geode Capital Management, LLC | 16,731 | $130.8K | 0.00% | −16,999−50.4% | Reduced |
| Antipodes Partners Ltd | 17,510 | $137.3K | 0.00% | +1,344+8.3% | Added |
| Nebula Research & Development LLC | 18,647 | $146.2K | 0.01% | +18,647 | New |
| Teacher Retirement System of Texas | 19,494 | $152.8K | 0.00% | +1,132+6.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 21,032 | $164.9K | 0.00% | 00.0% | Unchanged |
| Papamarkou Wellner Asset Management inc. | 21,199 | $166.2K | 0.11% | −27,893−56.8% | Reduced |
| Man Group plc | 26,700 | $209.3K | 0.00% | +26,700 | New |
| Cetera Investment Advisers | 30,726 | $240.9K | 0.00% | −9,435−23.5% | Reduced |
| SG Americas Securities, LLC | 32,580 | $255.0K | 0.00% | +32,580 | New |
| Pathstone Holdings, LLC | 33,010 | $258.8K | 0.00% | 00.0% | Unchanged |
| Magnetar Financial LLC | 34,633 | $271.5K | 0.00% | +34,633 | New |
| Vanguard Group Inc | 35,291 | $276.7K | 0.00% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 36,000 | $282.2K | 0.00% | +36,000 | New |
| Legal & General Group Plc | 38,139 | $299.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 39,044 | $306.1K | 0.00% | −26,210−40.2% | Reduced |
| D. E. Shaw & Co., Inc. | 39,113 | $306.6K | 0.00% | +22,963+142.2% | Added |
| Voloridge Investment Management, LLC | 41,771 | $327.5K | 0.00% | −120,933−74.3% | Reduced |
| Petrus Trust Company, LTA | 42,211 | $330.9K | 0.03% | +42,211 | New |
| BNP Paribas Arbitrage, SA | 43,914 | $344.3K | 0.00% | −29,897−40.5% | Reduced |
| Federated Hermes, Inc. | 48,000 | $376.3K | 0.00% | +16,500+52.4% | Added |
| California State Teachers Retirement System | 49,654 | $389.3K | 0.00% | +11,356+29.7% | Added |
| Two Sigma Advisers, LP | 51,900 | $406.9K | 0.00% | +15,400+42.2% | Added |
| Jane Street Group, LLC | 52,269 | $409.8K | 0.00% | +35,210+206.4% | Added |
| HRT Financial LP | 58,245 | $456.0K | 0.00% | +33,718+137.5% | Added |
| Toroso Investments, LLC | 61,574 | $482.7K | 0.00% | +24,568+66.4% | Added |
| Simplex Trading, LLC | 65,770 | $515.0K | 0.01% | +25,456+63.1% | Added |
| PEAK6 LLC | 68,935 | $540.5K | 0.02% | +23,757+52.6% | Added |
| Russell Investments Group, Ltd. | 75,603 | $592.7K | 0.00% | −194,991−72.1% | Reduced |
| Legato Capital Management LLC | 77,816 | $610.1K | 0.07% | −193−0.2% | Reduced |
| Hood River Capital Management LLC | 78,446 | $615.0K | 0.01% | +13,446+20.7% | Added |
| Two Sigma Investments, LP | 81,111 | $635.9K | 0.00% | −47,952−37.2% | Reduced |
| Gsa Capital Partners LLP | 82,740 | $649.0K | 0.05% | +82,740 | New |
| Northern Trust Corp | 82,926 | $650.1K | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 86,870 | $681.1K | 0.00% | +71,402+461.6% | Added |
| Swiss National Bank | 87,474 | $685.8K | 0.00% | +7,800+9.8% | Added |
| UBS Asset Management Americas Inc | 88,310 | $692.4K | 0.00% | +38,218+76.3% | Added |
| PDT Partners, LLC | 98,388 | $771.4K | 0.04% | +3,717+3.9% | Added |
| Goldman Sachs Group Inc | 98,715 | $773.9K | 0.00% | +77,816+372.3% | Added |
| Formula Growth Ltd | 100,000 | $784.0K | 0.30% | +100,000 | New |
| Engineers Gate Manager LP | 102,311 | $802.1K | 0.01% | +80,808+375.8% | Added |
| Oppenheimer & Co Inc | 104,389 | $818.4K | 0.01% | −656−0.6% | Reduced |
| Blair William & Co | 108,083 | $847.4K | 0.00% | +20,688+23.7% | Added |
| Qube Research & Technologies Ltd | 111,929 | $877.5K | 0.00% | +111,929 | New |
| Palogic Value Management, L.P. | 117,423 | $920.6K | 0.39% | +13,000+12.4% | Added |
| Y-Intercept (Hong Kong) Ltd | 117,831 | $923.8K | 0.02% | +86,612+277.4% | Added |
| Point72 Asset Management, L.P. | 118,200 | $926.7K | 0.00% | +58,731+98.8% | Added |
| Susquehanna International Group, LLP | 130,794 | $1.03M | 0.00% | +100,457+331.1% | Added |
| JPMorgan Chase & Co | 132,218 | $1.04M | 0.00% | −79,400−37.5% | Reduced |
| Ameriprise Financial Inc | 143,478 | $1.12M | 0.00% | −2,387−1.6% | Reduced |
| First Eagle Investment Management, LLC | 169,505 | $1.33M | 0.00% | +169,505 | New |
| Marshall Wace, LLP | 170,942 | $1.34M | 0.00% | −188,344−52.4% | Reduced |
| Jump Financial, LLC | 185,820 | $1.46M | 0.02% | +185,820 | New |
| Trexquant Investment LP | 196,676 | $1.54M | 0.02% | −17,007−8.0% | Reduced |
| P.A.W. Capital Corp | 240,000 | $1.88M | 3.62% | −60,000−20.0% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 242,370 | $1.90M | 0.01% | +121,619+100.7% | Added |
| Essex Investment Management Co LLC | 260,927 | $2.05M | 0.37% | −1,887−0.7% | Reduced |
| Millennium Management LLC | 308,384 | $2.42M | 0.00% | +282,930+1,111.5% | Added |
| State Street Corp | 310,541 | $2.43M | 0.00% | +35,606+13.0% | Added |
| Ceera Investments, LLC | 319,027 | $2.50M | 0.77% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 355,573 | $2.79M | 0.00% | +77,300+27.8% | Added |
| Sphera Management Technology Funds Ltd | 402,878 | $3.16M | 1.94% | +106,123+35.8% | Added |
| Penn Capital Management Co Inc | 412,166 | $3.23M | 0.28% | +412,166 | New |
| Cubist Systematic Strategies, LLC | 415,590 | $3.26M | 0.04% | +230,088+124.0% | Added |
| Herald Investment Management Ltd | 600,000 | $4.71M | 0.70% | +300,000+100.0% | Added |
| S Squared Technology, LLC | 686,672 | $5.38M | 2.27% | −313,819−31.4% | Reduced |
| Portolan Capital Management, LLC | 727,592 | $5.70M | 0.36% | +357,401+96.5% | Added |
| BlackRock, Inc. | 849,454 | $6.66M | 0.00% | +18,386+2.2% | Added |
| Alpha Family Trust | 851,669 | $6.68M | 3.31% | 00.0% | Unchanged |
| Citadel Advisors LLC | 880,265 | $6.90M | 0.01% | +380,265+76.1% | Added |
| Morgan Stanley | 913,261 | $7.16M | 0.00% | +572,884+168.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 920,671 | $7.22M | 0.03% | +114,497+14.2% | Added |