SEALSQ Corp (LAES) Institutional Ownership

Ownership Summary

SEALSQ Corp (NASDAQ:LAES) currently has 71 active institutional owners and shareholders as of today (September 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• The collective stake of institutional investors in SEALSQ moved to 7.0% in September 2025, a shift up from the 7.0% reported for June 2025.
• The company experienced a 62.10% quarterly change in institutional shares held, alongside an increase of 1083.33% in total owners annually.
• During the quarter, 50 institutions bought more SEALSQ shares, 10 sold shares, and 11 of the 71 total investors held their position steady.
• This class of investors increased its holdings in SEALSQ to 7.05Mn shares for the 13F-cycle ending September 2025, up by 2.70Mn shares quarter on quarter, and up 7.02Mn shares year over year.
• As of September 30, 2025, JANE STREET GROUP, LLC held SEALSQ's largest shareholding position with over 1.56Mn shares, representing 1.56% of total outstanding shares.
• Among the most significant buyers of SEALSQ during September 2025 were JANE STREET GROUP, LLC (1.37Mn), MILLENNIUM MANAGEMENT LLC (433.55K), Vident Advisory, LLC (264.11K), TUDOR INVESTMENT CORP ET AL (255.22K), Counterpoint Mutual Funds LLC (134.31K).
• Leading sellers of SEALSQ stock in September 2025 included SUSQUEHANNA INTERNATIONAL GROUP, LLP (548.75K), Squarepoint Ops LLC (102.47K), UBS Group AG (92.47K), Rafferty Asset Management, LLC (57.14K), WOLVERINE TRADING, LLC (21.66K).
• The top 10 institutional holders of SEALSQ for the quarter ending September 2025 included JANE STREET GROUP, LLC (1.56Mn), NATIONAL BANK OF CANADA /FI/ (971.73K), UBS Group AG (647.21K), MILLENNIUM MANAGEMENT LLC (491.52K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (342.10K), Vident Advisory, LLC (264.11K), TUDOR INVESTMENT CORP ET AL (255.22K), SBI Securities Co., Ltd. (234.25K), Squarepoint Ops LLC (170.22K), MORGAN STANLEY (166.36K).