GP-Act III Acquisition Corp. (GPAT) Institutional Ownership

Ownership Summary

GP-Act III Acquisition Corp. (NASDAQ:GPAT) has 52 institutional investors that have filed 13F reports for the period ending December 2025.

• Their combined ownership stood at 84.6% of outstanding shares in December 2025, down from 88.3% in September 2025.
• They decreased total shares held in GPAT by -4.01% quarter over quarter, and investors in GP-Act III Acquisition increased 20.93% from a year ago.
• Among the 52 funds, 12 bought more GP-Act III Acquisition shares, 14 sold down, and 26 held their ground.
• Altogether, these fund groups held 30.39Mn shares in GPAT by December 2025, down by 1.27Mn shares quarter on quarter, and down 4.54Mn shares year over year.
• As of December 31, 2025, the biggest holder of GP-Act III Acquisition is Karpus Management, Inc. at 2.23Mn shares, representing 6.21% of shares outstanding.
• The biggest buyers of GP-Act III Acquisition for the quarter ending December 2025 included Jpmorgan Chase & Co (952.15K), Berkley W R Corp (534.53K), HIGHBRIDGE CAPITAL MANAGEMENT LLC (452.07K), O'Connor Alternative Investments LLC (250.0K), Toronto Dominion Bank (235.46K).
• The biggest sellers of GP-Act III Acquisition for the quarter ending December 2025 included Alberta Investment Management Corp (1.62Mn), HGC Investment Management Inc. (1.38Mn), Westchester Capital Management, LLC (500.0K), PICTON MAHONEY ASSET MANAGEMENT (500.0K), COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS (358.36K).
• Per Business Quant, the top 10 investors in GPAT for the quarter ending December 2025 include Karpus Management, Inc. (2.23Mn), First Trust Capital Management L.P. (2.09Mn), Alberta Investment Management Corp (1.62Mn), AQR Arbitrage LLC (1.58Mn), D. E. Shaw & Co., Inc. (1.42Mn), PICTON MAHONEY ASSET MANAGEMENT (1.38Mn), MMCAP International Inc. SPC (1.27Mn), LMR Partners LLP (1.22Mn), Polar Asset Management Partners Inc. (1.17Mn), Wealthspring Capital LLC (1.01Mn).