SIM Acquisition Corp. I SIMA Institutional Ownership

Ownership Summary

SIM Acquisition Corp. I (NASDAQ:SIMA) has 45 institutional investors that have filed 13F reports for the period ending March 2026.

• These investors collectively held 92.6% of SIM Acquisition Corp. I's outstanding shares in March 2026, down from 104.9% in December 2025.
• They decreased total shares held in SIM Acquisition Corp. I by -10.22% from the prior quarter, while the number of investors in SIMA increased 18.42% year over year.
• Activity in SIMA broke down as 12 buyers, 16 sellers, and 17 unchanged among 45 total holders.
• Altogether, these fund groups held 21.29Mn shares in SIMA by March 2026, down by 2.42Mn shares quarter on quarter, and down 1.45Mn shares year over year.
• Magnetar Financial LLC holds the largest position in SIMA at 1.95Mn shares as of March 31, 2026, or 8.46% of shares outstanding.
• The biggest buyers of SIM Acquisition Corp. I for the quarter ending March 2026 included DLD Asset Management, LP (501.42K), Toronto Dominion Bank (416.94K), Berkley W R Corp (390.77K), Crossingbridge Advisors, LLC (104.5K), SONA ASSET MANAGEMENT (US) LLC (100.0K).
• The biggest sellers of SIM Acquisition Corp. I for the quarter ending March 2026 included Alberta Investment Management Corp (750.0K), Goldman Sachs Group Inc (623.34K), MIZUHO SECURITIES USA LLC (565.59K), First Trust Capital Management L.P. (506.0K), Westchester Capital Management, LLC (500.0K).
• SIM Acquisition Corp. I's 10 largest shareholders as of March 2026 include Magnetar Financial LLC (1.95Mn), Karpus Management, Inc. (1.73Mn), AQR Arbitrage LLC (1.46Mn), PICTON MAHONEY ASSET MANAGEMENT (1.3Mn), First Trust Capital Management L.P. (1.29Mn), D. E. Shaw & Co., Inc. (987.5K), MMCAP International Inc. SPC (980.0K), LMR Partners LLP (980.0K), Berkley W R Corp (912.29K), Toronto Dominion Bank (780.64K) per Business Quant data.