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.
Holders of 5% or more of SMWB
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Similarweb Ltd., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Viola Growth Management Fund 2 Ltd. | 13G/A | 13.20%10.8M shares | – | Feb 12, 20251 filing | Feb 12, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
3 Schedule 13D and 13G filings on Similarweb Ltd., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 24, 20266:01 AM ET | Phoenix Holdings Ltd. | 13G/A | 2.88%2.50M shares | −2.16 ppfrom 5.04%Below 5% | Feb 18, 2026 | SEC |
| Dec 22, 202510:50 AM ET | Phoenix Holdings Ltd. | 13G/A | 5.04%4.17M shares | – | Dec 15, 2025 | SEC |
| Feb 12, 20251:26 PM ET | Viola Growth Management Fund 2 Ltd.and 13 others | 13G/A | 13.20%10.8M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Similarweb Ltd. shares.
No Form 144 notices for Similarweb Ltd. are on file.