SIMILARWEB LTD SMWB
$6.18
-6.2% 52w: $2.33 – $10.40
Latest 13F among current holders filed 21 days ago (Aug 12, 2026)
Price — last 12 months
research preview data2.336.3710.40
Aug 18, 2025 Jul 2, 2026
Institutional holders
82
-19 QoQ
13F value
$145.5M
-68.0% QoQ
Smart-money holders
12
signal tier ≥ 2
New smart buyers
0
Q1 2026
Options barometer
0.5×
$158K calls / $327K puts
Institutional value by quarter
Number of holders
Who owns SMWB?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| NASPERS LTD ★2 | Fundamental diversified | 11.2M | $29.2M | — | Held |
| Viola Ventures V.C. Management 4 Ltd. ★2 | Fundamental diversified | 10.8M | $28.2M | — | Held |
| MENORA MIVTACHIM HOLDINGS LTD. ★2 | Fundamental diversified | 4.0M | $10.5M | 0.0% | Held |
| Y.D. More Investments Ltd | Other | 1.2M | $8.3M | 0.3% | -1.7% |
| ION Crossover Partners Ltd ★2 | Fundamental diversified | 3.0M | $7.9M | — | Held |
| Ulysses Management LLC ★2 | Fundamental concentrated | 3.0M | $7.8M | — | Held |
| WELLINGTON MANAGEMENT GROUP LLP | Long only active | 3.0M | $7.7M | 0.0% | -1.2% |
| S SQUARED TECHNOLOGY, LLC ★3 | Fundamental concentrated | 1.6M | $4.2M | — | +106.4% |
| CenterBook Partners LP | Other | 1.3M | $3.5M | — | +37.9% |
| Alpha Family Trust ★2 | Fundamental diversified | 658.9K | $2.3M | — | Held |
| MILLENNIUM MANAGEMENT LLC | Multistrat pod | 825.8K | $2.2M | 0.0% | +130.8% |
| MIRABELLA FINANCIAL SERVICES LLP | Quant stat arb | 792.7K | $2.1M | — | New |
| RENAISSANCE TECHNOLOGIES LLC | Quant stat arb | 739.7K | $1.9M | — | +104.6% |
| Militia Capital Management LLC | Other | 691.3K | $1.8M | — | — |
| HERALD INVESTMENT MANAGEMENT Ltd ★2 | Fundamental diversified | 645.5K | $1.7M | — | Held |
| CDC Financial, Inc. ★3 | Fundamental concentrated | 639.0K | $1.7M | — | +350.9% |
| MARSHALL WACE, LLP | Quant stat arb | 638.2K | $1.7M | — | +118.2% |
| Sphera Management Technology Funds Ltd ★2 | Fundamental diversified | 615.0K | $1.6M | — | +28.1% |
| MORGAN STANLEY | Bank broker | 591.9K | $1.5M | 0.0% | +130.6% |
| Connor, Clark & Lunn Investment Management Ltd. | Diversified mechanical | 533.6K | $1.4M | — | -33.2% |
| P.A.W. CAPITAL CORP ★3 | Fundamental concentrated | 500.0K | $1.3M | — | +108.3% |
| CITADEL ADVISORS LLC | Multistrat pod | 476.0K | $1.2M | 0.0% | +137.9% |
| Qube Research & Technologies Ltd | Quant stat arb | 416.1K | $1.1M | — | +2409.6% |
| ACADIAN ASSET MANAGEMENT LLC | Quant stat arb | 405.6K | $1.1M | 0.0% | +156.0% |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | Other | 390.0K | $1.0M | — | +132.8% |
| Penn Capital Management Company, LLC | Other | 360.4K | $941K | — | -77.3% |
| ARK Investment Management LLC ★2 | Long only active | 352.1K | $919K | 0.0% | +48.9% |
| PEAK6 LLC | Market maker | 321.2K | $838K | 0.0% | +14524.6% |
| Schonfeld Strategic Advisors LLC | Multistrat pod | 289.2K | $755K | 0.0% | New |
| JANE STREET GROUP, LLC | Market maker | 231.3K | $604K | 0.0% | +24.2% |
| XTX Topco Ltd | Market maker | 228.9K | $597K | 0.0% | New |
| Phoenix Financial Ltd. | Other | 216.9K | $566K | 0.0% | -94.9% |
| LAVELLE CAPITAL LP | Other | 202.7K | $529K | 0.3% | Held |
| UBS Group AG | Bank broker | 198.5K | $518K | 0.0% | -63.0% |
| Persistent Asset Partners Ltd | Quant stat arb | 180.0K | $470K | — | Held |
| JPMORGAN CHASE & CO | Bank broker | 175.2K | $435K | 0.0% | +765.3% |
| GSA CAPITAL PARTNERS LLP | Diversified mechanical | 152.1K | $397K | — | New |
| Jump Financial, LLC | Market maker | 147.6K | $385K | 0.0% | +133.1% |
| BlackRock, Inc. | Index provider | 127.5K | $333K | 0.0% | -86.9% |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | Market maker | 125.6K | $328K | — | New |
| Palogic Value Management, L.P. | Other | 114.0K | $298K | 0.1% | New |
| CITIGROUP INC | Bank broker | 110.2K | $288K | 0.0% | +8158.9% |
| STATE STREET CORP | Index provider | 109.4K | $286K | 0.0% | -70.4% |
| Point72 Asset Management, L.P. | Multistrat pod | 100.2K | $262K | 0.0% | +12.4% |
| Quadrature Capital Ltd | Diversified mechanical | 94.2K | $246K | — | New |
| OPPENHEIMER & CO INC | Diversified mechanical | 91.1K | $238K | 0.0% | +1.9% |
| Voleon Capital Management LP | Quant stat arb | 88.7K | $232K | — | New |
| Engineers Gate Manager LP | Diversified mechanical | 87.4K | $228K | 0.0% | +39.2% |
| TWO SIGMA INVESTMENTS, LP | Quant stat arb | 79.1K | $206K | 0.0% | New |
| FEDERATED HERMES, INC. | Diversified mechanical | 70.0K | $183K | — | +133.3% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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