SEALSQ Corp (LAES) Institutional Ownership

Ownership Summary

A total of 93 institutions have reported a stake in SEALSQ Corp (NASDAQ:LAES) as of December 2025, according to recent 13F filings with the SEC.

• The percentage of Sealsq owned by institutions changed from 9.3% in September 2025 to 20.4% in December 2025, marking a slight up trend.
• Institutional share ownership changed by 160.55% QoQ, while the number of institutional owners saw an increase of 304.35% YoY.
• Of these 93 institutional investors, 73 increased their holdings in Sealsq, while 13 of them reduced positions, and 7 investors maintained their exposure.
• Collectively, institutional investors increased their stake in Sealsq to 15.50Mn shares as of December 2025, a change that is up by 9.55Mn shares quarter on quarter and up 12.60Mn shares year over year.
• As of December 31, 2025, JANE STREET GROUP, LLC held Sealsq's largest shareholding position with over 6.67Mn shares, representing 8.76% of total outstanding shares.
• Among the most significant buyers of Sealsq during December 2025 were JANE STREET GROUP, LLC (5.11Mn), UBS Group AG (2.58Mn), BALYASNY ASSET MANAGEMENT L.P. (1.04Mn), MIRAE ASSET SECURITIES (USA) INC. (390.23K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (354.54K).
• Leading sellers of Sealsq stock in December 2025 included NATIONAL BANK OF CANADA /FI/ (850.30K), MILLENNIUM MANAGEMENT LLC (356.13K), TUDOR INVESTMENT CORP ET AL (244.29K), Squarepoint Ops LLC (151.31K), Quadrature Capital Ltd (143.96K).
• The top 10 institutional holders of Sealsq for the quarter ending December 2025 included JANE STREET GROUP, LLC (6.67Mn), UBS Group AG (3.22Mn), BALYASNY ASSET MANAGEMENT L.P. (1.04Mn), SUSQUEHANNA INTERNATIONAL GROUP, LLP (696.64K), MIRAE ASSET SECURITIES (USA) INC. (390.23K), Kessler Investment Group, LLC (340.53K), SBI Securities Co., Ltd. (203.78K), L1 Global Manager Pty Ltd (200.00K), CITADEL ADVISORS LLC (198.36K), DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main (168.96K).