SIM Acquisition Corp. I (SIMA) Institutional Ownership

Ownership Summary

SIM Acquisition Corp. I (NASDAQ:SIMA) has 41 institutional investors that have filed 13F reports for the period ending December 2025.

• These investors collectively held 76.6% of SIM Acquisition Corp. I's outstanding shares in December 2025, down from 77.8% in September 2025.
• Their total shares held in SIMA decreased -0.25% from the prior quarter, while the number of investors in SIM Acquisition Corp. I stayed flat year over year.
• Of these 41 holders, 7 added to their stakes in SIM Acquisition Corp. I, 10 trimmed positions, and 24 made no changes.
• Combined, these investors held 23.49Mn shares in SIMA for December 2025, down by 58.23K shares quarter on quarter, and up 460.01K shares year over year.
• Magnetar Financial LLC leads ownership in SIMA with 1.95Mn shares as of December 31, 2025, equal to 6.34% of outstanding shares.
• Top purchasers of SIMA stock for the quarter ending December 2025 included MIZUHO SECURITIES USA LLC (372.98K), L1 Global Manager Pty Ltd (200.0K), Radcliffe Capital Management, L.P. (26.29K), Shaolin Capital Management LLC (11.6K), UBS Group AG (9.92K).
• The biggest sellers of SIM Acquisition Corp. I for the quarter ending December 2025 included Hudson Bay Capital Management LP (597.02K), Karpus Management, Inc. (33.27K), Schonfeld Strategic Advisors LLC (18.37K), RIVERNORTH CAPITAL MANAGEMENT, LLC (12.23K), GLAZER CAPITAL, LLC (10.0K).
• Business Quant data shows the 10 biggest positions in SIM Acquisition Corp. I as of December 2025 are held by Magnetar Financial LLC (1.95Mn), PICTON MAHONEY ASSET MANAGEMENT (1.8Mn), First Trust Capital Management L.P. (1.8Mn), Karpus Management, Inc. (1.74Mn), Alberta Investment Management Corp (1.5Mn), AQR Arbitrage LLC (1.46Mn), Westchester Capital Management, LLC (1.27Mn), D. E. Shaw & Co., Inc. (987.5K), LMR Partners LLP (980.0K), MMCAP International Inc. SPC (980.0K).