SIMILARWEB LTD (M84137104) Institutional Shareholders
SIMILARWEB LTD (M84137104) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $139.42M in M84137104 holdings during the latest filing period.
Ion Crossover Partners Ltd is currently the largest disclosed institutional shareholder of M84137104 tracked by InsiderSet, reporting ownership valued at approximately $30.61M in its March 31, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 79% of the total disclosed M84137104 value among the investors covered in this analysis. Major shareholders include Ion Crossover Partners Ltd, Naspers Ltd, Menora Mivtachim Holdings Ltd., and several other long-term asset managers with concentrated positions in SIMILARWEB LTD (M84137104).
This page ranks the largest institutional M84137104 shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
76
Total Reported Value
$139.42M
Largest Holder
Ion Crossover Partners Ltd
Largest Position
$30.61M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
119
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Ion Crossover Partners Ltd | 26.76% | 6,061,652 | $30,611,343 | — | — | — | |
| Naspers Ltd | 11.53% | 11,173,265 | $29,162,222 | — | — | — | |
| Menora Mivtachim Holdings Ltd. | 0.05% | 4,015,494 | $10,480,439 | — | — | — | |
| Y.D. More Investments Ltd | 0.33% | 1,151,298 | $8,338,601 | — | — | — | |
| Ulysses Management Llc | 2.95% | 2,998,474 | $7,826,017 | — | — | — | |
| Wellington Management Group Llp | 0.00% | 2,966,757 | $7,743,235 | — | — | — | |
| S Squared Technology, Llc | 1.58% | 1,600,000 | $4,176,000 | — | — | — | |
| Herald Investment Management Ltd | 0.54% | 645,465 | $3,963,155 | — | — | — | |
| P.A.W. Capital Corp | 3.00% | 640,000 | $3,923,200 | — | — | — | |
| Centerbook Partners Lp | 0.19% | 1,325,113 | $3,458,545 | — | — | — | |
| Alpha Family Trust | 1.10% | 658,935 | $2,260,148 | — | — | — | |
| Millennium Management Llc | 0.00% | 825,763 | $2,155,241 | — | — | — | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 739,673 | $1,930,547 | — | — | — |
| Cdc Financial, Inc. | 1.38% | 639,014 | $1,667,827 | — | — | — | |
| Marshall Wace, Llp | 0.00% | 638,188 | $1,665,671 | — | — | — | |
| Sphera Management Technology Funds Ltd | 0.91% | 615,000 | $1,605,150 | — | — | — | |
| Morgan Stanley | 0.00% | 591,863 | $1,544,762 | — | — | — | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 533,634 | $1,392,785 | — | — | — | |
| Lavelle Capital Lp | 0.63% | 202,727 | $1,242,717 | — | — | — | |
| Citadel Advisors Llc | 0.00% | 476,005 | $1,242,373 | — | — | — | |
| Qube Research & Technologies Ltd | 0.00% | 416,146 | $1,086,141 | — | — | — | |
| Nano Cap New Millennium Growth Fund L P | 0.95% | 390,000 | $1,017,900 | — | — | — | |
| ARK Invest | Cathie Wood | 0.01% | 352,070 | $918,903 | — | — | — |
| Peak6 Llc | 0.02% | 321,156 | $838,217 | — | — | — | |
| Schonfeld Strategic Advisors Llc | 0.01% | 289,174 | $754,743 | — | — | — | |
| Jane Street Group, Llc | 0.00% | 231,266 | $603,604 | — | — | — | |
| Xtx Topco Ltd | 0.01% | 228,880 | $597,377 | — | — | — | |
| Militia Capital Management Llc | 0.13% | 219,264 | $572,279 | — | — | — | |
| Phoenix Financial Ltd. | 0.01% | 216,904 | $566,119 | — | — | — | |
| Ubs Group Ag | 0.00% | 198,543 | $518,197 | — | — | — | |
| Persistent Asset Partners Ltd | 0.18% | 180,000 | $469,800 | — | — | — | |
| Jump Financial, Llc | 0.01% | 147,616 | $385,278 | — | — | — | |
| Blackrock, Inc. | 0.00% | 127,504 | $332,785 | — | — | — | |
| Susquehanna Fundamental Investments, Llc | 0.01% | 125,623 | $327,876 | — | — | — | |
| Palogic Value Management, L.P. | 0.13% | 114,000 | $297,540 | — | — | — | |
| Citigroup Inc | 0.00% | 110,174 | $287,554 | — | — | — | |
| State Street Corp | 0.00% | 109,396 | $285,524 | — | — | — | |
| Point72 Asset Management, L.P. | 0.00% | 100,204 | $261,532 | — | — | — | |
| Quadrature Capital Ltd | 0.00% | 94,234 | $245,951 | — | — | — | |
| Oppenheimer & Co Inc | 0.00% | 91,088 | $237,740 | — | — | — | |
| Voleon Capital Management Lp | 0.00% | 88,704 | $231,517 | — | — | — | |
| Engineers Gate Manager Lp | 0.00% | 87,418 | $228,161 | — | — | — | |
| Two Sigma Investments, Lp | 0.00% | 79,076 | $206,388 | — | — | — | |
| Federated Hermes, Inc. | 0.00% | 70,000 | $182,700 | — | — | — | |
| Bank Of America Corp | 0.00% | 63,985 | $167,001 | — | — | — | |
| Tidal Investments Llc | 0.00% | 61,626 | $160,844 | — | — | — | |
| Centiva Capital, Lp | 0.01% | 60,122 | $156,918 | — | — | — | |
| D. E. Shaw & Co., Inc. | 0.00% | 58,552 | $152,821 | — | — | — | |
| Axq Capital, Lp | 0.02% | 52,410 | $136,790 | — | — | — | |
| Pathstone Holdings, Llc | 0.00% | 50,390 | $131,518 | — | — | — |
Frequently asked questions about M84137104
Who owns the most M84137104 stock?
The largest holders of M84137104 are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SIMILARWEB LTD (M84137104).
Is M84137104 widely held by superinvestors?
Many widely followed stocks like M84137104 appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly M84137104 is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.