Jackson Acquisition Co II - JACS

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
Hudson Bay Capital Management LP History Added to 1,488,300 15,508 0.05% 0.05% 1 +150,000 11.21% Q4 2025 Feb 13, 2026
HGC Investment Management Inc. History Reduced 1,475,200 15,371 3.26% 3.98% 2 -100,000 -6.35% Q4 2025 Feb 17, 2026
AQR Arbitrage LLC History No change 1,216,792 12,678 0.27% 0.32% 3 0 0.0% Q4 2025 Feb 17, 2026
GLAZER CAPITAL, LLC History Reduced 1,205,757 12,564 0.33% 0.43% 4 -23,708 -1.93% Q4 2025 Feb 13, 2026
Westchester Capital Management, LLC History No change 1,186,200 12,360 0.52% 0.56% 5 0 0.0% Q4 2025 Feb 13, 2026
LINDEN ADVISORS LP History No change 1,150,000 11,983 0.07% 0.08% 6 0 0.0% Q4 2025 Feb 17, 2026
D. E. Shaw & Co., Inc. History No change 1,138,500 11,863 0.01% 0.01% 7 0 0.0% Q4 2025 Feb 17, 2026
Polar Asset Management Partners Inc. History New 1,025,000 10,680 0.14% 8 +1,025,000 New Q4 2025 Feb 17, 2026
WOLVERINE ASSET MANAGEMENT LLC History Reduced 983,614 10,249 0.08% 0.08% 9 -3,873 -0.39% Q4 2025 Feb 02, 2026
METEORA CAPITAL, LLC History Reduced 770,492 8,028 0.67% 1.58% 10 -669,101 -46.48% Q4 2025 Feb 17, 2026
HEIGHTS CAPITAL MANAGEMENT, INC History No change 700,000 7,294 2.62% 2.07% 11 0 0.0% Q4 2025 Feb 17, 2026
Radcliffe Capital Management, L.P. History Added to 662,430 6,902 0.38% 0.33% 12 +150,257 29.34% Q4 2025 Feb 17, 2026
Mint Tower Capital Management B.V. History No change 650,000 6,773 0.78% 0.8% 13 0 0.0% Q4 2025 Feb 12, 2026
Calamos Advisors LLC History No change 500,000 6,487 0.02% 0.02% 14 0 0.0% Q4 2025 Jan 29, 2026
TORONTO DOMINION BANK History Added to 602,500 6,278 0.01% 0.0% 15 +452,500 301.67% Q4 2025 Feb 17, 2026
TENOR CAPITAL MANAGEMENT Co., L.P. History No change 600,000 6,252 0.09% 0.08% 16 0 0.0% Q4 2025 Feb 17, 2026
Magnetar Financial LLC History No change 600,000 6,252 0.06% 0.04% 17 0 0.0% Q4 2025 Feb 17, 2026
First Trust Capital Management L.P. History No change 567,500 5,913 0.36% 0.38% 18 0 0.0% Q4 2025 Feb 13, 2026
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS History No change 500,000 5,210 0.03% 0.03% 19 0 0.0% Q4 2025 Feb 10, 2026
PERISCOPE CAPITAL INC. History Added to 479,098 4,992 0.57% 0.74% 20 +29,098 6.47% Q4 2025 Feb 10, 2026
TWO SIGMA INVESTMENTS, LP History No change 474,821 4,947 0.01% 0.01% 21 0 0.0% Q4 2025 Feb 17, 2026
LMR Partners LLP History No change 443,751 4,623 0.01% 0.02% 22 0 0.0% Q4 2025 Feb 17, 2026
Bulldog Investors, LLP History Reduced 410,138 4,273 0.95% 0.99% 23 -2,736 -0.66% Q4 2025 Feb 13, 2026
Wealthspring Capital LLC History No change 400,333 4,171 0.98% 0.99% 24 0 0.0% Q4 2025 Feb 05, 2026
Shaolin Capital Management LLC History Added to 400,000 4,168 0.13% 0.07% 26 +250,000 166.67% Q4 2025 Feb 17, 2026
PICTON MAHONEY ASSET MANAGEMENT History No change 400,000 4,168 0.03% 0.04% 25 0 0.0% Q4 2025 Feb 11, 2026
RIVERNORTH CAPITAL MANAGEMENT, LLC History Reduced 399,513 4,162 0.2% 0.24% 27 -231 -0.06% Q4 2025 Feb 17, 2026
GOLDMAN SACHS GROUP INC History No change 360,208 3,753 0.0% 0.0% 28 0 0.0% Q4 2025 Mar 25, 2026
BERKLEY W R CORP History No change 346,265 3,608 0.17% 0.21% 29 0 0.0% Q4 2025 Feb 13, 2026
MANGROVE PARTNERS IM, LLC History No change 280,470 2,922 0.24% 0.22% 30 0 0.0% Q4 2025 Feb 17, 2026
GABELLI & Co INVESTMENT ADVISERS, INC. History No change 220,100 2,293 0.34% 0.37% 31 0 0.0% Q4 2025 Feb 05, 2026
WHITEBOX ADVISORS LLC History No change 175,000 1,823 0.03% 0.03% 32 0 0.0% Q4 2025 Feb 17, 2026
GABELLI FUNDS LLC History New 154,900 1,614 0.01% 33 +154,900 New Q4 2025 Feb 05, 2026
Yakira Capital Management, Inc. History No change 150,000 1,563 0.53% 0.54% 34 0 0.0% Q4 2025 Feb 13, 2026
Verition Fund Management LLC History Reduced 139,824 1,456 0.01% 0.01% 35 -10,103 -6.74% Q4 2025 Feb 13, 2026
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) History No change 100,000 1,042 1.44% 0.17% 36 0 0.0% Q4 2025 Mar 04, 2026
MIZUHO SECURITIES USA LLC History Reduced 84,103 874 0.01% 0.02% 37 -31,843 -27.46% Q4 2025 Feb 09, 2026
READYSTATE ASSET MANAGEMENT LP History No change 50,000 521 0.02% 0.02% 38 0 0.0% Q4 2025 Feb 17, 2026
DELTEC ASSET MANAGEMENT LLC History No change 40,000 416 0.07% 0.07% 39 0 0.0% Q4 2025 Jan 29, 2026
Schonfeld Strategic Advisors LLC History No change 29,982 312 0.0% 0.0% 40 0 0.0% Q4 2025 Feb 17, 2026
Clear Street Group Inc. History No change 18,106 189 0.0% 0.0% 41 0 0.0% Q4 2025 Feb 13, 2026
ABC ARBITRAGE SA History New 15,000 156 0.01% 42 +15,000 New Q4 2025 Feb 04, 2026
BCK CAPITAL MANAGEMENT LP History Closed out 0 0 1.14% -103,311 -100.0% Q3 2025 Nov 10, 2025
DLD Asset Management, LP History Closed out 0 0 0.0% -98,300 -100.0% Q3 2025 Nov 14, 2025
CANTOR FITZGERALD, L. P. History Closed out 0 0 0.01% -87,630 -100.0% Q3 2025 Feb 17, 2026
Crossingbridge Advisors, LLC History New 17 0 +17 New Q4 2025 Feb 13, 2026