Who Owns SIMILARWEB LTD (SMWB)? -- Institutional Holders (2026-06-30)

97 institutions reported holding $247.7M of SIMILARWEB LTD (SMWB) in SEC 13F filings for 2026-06-30. Largest institutional holders: NASPERS LTD ($68.5M), MENORA MIVTACHIM HOLDINGS LTD. ($24.6M), WELLINGTON MANAGEMENT GROUP LLP ($22.2M), ION Crossover Partners Ltd ($18.6M), Ulysses Management LLC ($18.0M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1NASPERS LTD$68.5M11.2MHold
2MENORA MIVTACHIM HOLDINGS LTD.$24.6M4.0MHold
3WELLINGTON MANAGEMENT GROUP LLP$22.2M3.6MAdded
4ION Crossover Partners Ltd$18.6M3.0MHold
5Ulysses Management LLC$18.0M2.9MTrimmed
6S Squared Technology, LLC$10.4M1.7MAdded
7Schonfeld Strategic Advisors LLC$7.4M1.2MAdded
8Y.D. More Investments Ltd$7.0M1.1MTrimmed
9ARK Investment Management LLC$5.1M834,663Added
10RENAISSANCE TECHNOLOGIES LLC$4.4M713,728Trimmed
11CDC Financial, Inc.$4.1M674,233Added
12Alpha Family Trust$4.0M658,935Hold
13NANO CAP NEW MILLENNIUM GROWTH FUND L P$4.0M650,000Added
14Herald Investment Management Ltd$4.0M645,465Hold
15P.A.W. CAPITAL CORP$3.9M640,000Added
16Sphera Management Technology Funds Ltd$3.8M615,000Hold
17JANE STREET GROUP, LLC$3.7M601,977Added
18CenterBook Partners LP$3.7M599,737Trimmed
19Lotus Technology Management, LP$3.4M531,409New
20PEAK6 LLC$3.0M487,822Added
21Connor, Clark & Lunn Investment Management Ltd.$2.7M445,691Trimmed
22UBS Group AG$2.5M403,328Added
23CITADEL ADVISORS LLC$2.5M399,935Trimmed
24MORGAN STANLEY$1.6M268,203Trimmed
25LAVELLE CAPITAL LP$1.2M202,727Hold

Source: SEC Form 13F filings · as of 2026-06-30