Plum Acquisition Corp, IV (PLMK) Institutional Ownership

Ownership Summary

Plum Acquisition Corp, IV (NASDAQ:PLMK) showed up in the 13F filings of 44 institutional investors as of December 2025.

• Collectively, these holders controlled 70.9% of Plum Acquisition Corp, IV's outstanding shares in December 2025, down from 73.3% in June 2025.
• Their total shares held in PLMK decreased -8.15% from the prior quarter, while the number of investors in Plum Acquisition Corp, IV stayed flat year over year.
• Of these 44 funds, 12 grew their exposure to Plum Acquisition Corp, IV, 9 cut back, and 23 maintained positions.
• Institutional investors collectively held 17.19Mn shares in Plum Acquisition Corp, IV as of December 2025, down by 1.53Mn shares quarter on quarter, and with no net change year over year.
• Westchester Capital Management, LLC leads ownership in PLMK with 1.22Mn shares as of December 31, 2025, equal to 5.05% of outstanding shares.
• The most significant purchases of PLMK for the quarter ending December 2025 came from Governors Lane LP (399.9K), Goldman Sachs Group Inc (339.61K), D. E. Shaw & Co., Inc. (153.88K), RIVERNORTH CAPITAL MANAGEMENT, LLC (115.83K), METEORA CAPITAL, LLC (100.0K).
• The biggest sellers of Plum Acquisition Corp, IV for the quarter ending December 2025 included Hudson Bay Capital Management LP (1.19Mn), HEIGHTS CAPITAL MANAGEMENT, INC (500.0K), Polar Asset Management Partners Inc. (400.0K), WOLVERINE ASSET MANAGEMENT LLC (138.12K), COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS (112.49K).
• Business Quant data shows the 10 biggest positions in Plum Acquisition Corp, IV as of December 2025 are held by Westchester Capital Management, LLC (1.22Mn), Alberta Investment Management Corp (1.0Mn), AQR Arbitrage LLC (960.43K), D. E. Shaw & Co., Inc. (853.88K), GLAZER CAPITAL, LLC (783.34K), Berkley W R Corp (768.89K), TENOR CAPITAL MANAGEMENT Co., L.P. (700.0K), Context Capital Management, LLC (700.0K), LINDEN ADVISORS LP (700.0K), Governors Lane LP (700.0K).