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SIMILARWEB LTD. (SMWB) Institutional Ownership & Insider Trading

69 institutions reported holding SIMILARWEB LTD. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 33 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

SMWBSIMILARWEB LTD.Follow SMWB — free
Information Technology Services · Technology
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Market cap
764.4M
P/E TTM
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Dividend yield
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52-week
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Next earnings
17 Nov, in 24 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

69 institutions held 46.1% of the shares. Across filers that reported both quarters, shares held changed -7.7%.

Increased+19New+14Decreased-19Closed-27

Largest moves, shares (millions)

Schonfeld Strategic Advisors+0.9MWellington Management Group+0.7MARK Investment Management+0.5MMillennium Management-0.8MMirabella Financial Services-0.8MCenterBook Partners-0.7M

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters
+4.7Sep 24+5.5Dec 24+3.3Mar 25-3.7Jun 25+1.8Sep 25+0.4Dec 25-7.7Mar 26-3.2Jun 26
QuarterHoldersShares held, MChangeIncreasedNewDecreasedClosed
Jun 266940-7.7%19141927
Mar 267941-15.8%31181634
Dec 259647+1.0%26132912
Sep 259446+4.0%29113424
Jun 2511041-8.3%46202317
Mar 2510945+8.0%32233824
Dec 2411241+15.4%4422268
Sep 249335+15.7%3425178

SIMILARWEB LTD. — questions

Who owns SIMILARWEB LTD. stock?
69 institutions reported SIMILARWEB LTD. shares in 13F filings for the quarter ended 2026-06-30. The largest: NASPERS LTD (12.8%), MENORA MIVTACHIM HOLDINGS LTD. (4.6%), WELLINGTON MANAGEMENT GROUP LLP (4.2%).
Are SIMILARWEB LTD. insiders buying or selling?
33 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from SIMILARWEB LTD.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.