Jackson Acquisition Co II - JACS
Detailed investor-level table based on 13F positions.
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 | 1,520,505 | 16,102 | 0.06% | 0.05% | 1 | +32,205 | 2.16% | Q1 2026 | May 13, 2026 |
| METEORA CAPITAL, LLC | History | Added to | 1,219,744 | 12,917 | 0.95% | 0.67% | 2 | +449,252 | 58.31% | Q1 2026 | May 15, 2026 |
| GLAZER CAPITAL, LLC | History | Reduced | 1,195,650 | 12,662 | 0.27% | 0.33% | 3 | -10,107 | -0.84% | Q1 2026 | May 14, 2026 |
| Westchester Capital Management, LLC | History | No change | 1,186,200 | 12,561 | 0.57% | 0.52% | 4 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| AQR Arbitrage LLC | History | Reduced | 1,162,562 | 12,311 | 0.2% | 0.27% | 5 | -54,230 | -4.46% | Q1 2026 | May 15, 2026 |
| LINDEN ADVISORS LP | History | No change | 1,150,000 | 12,178 | 0.07% | 0.07% | 6 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| D. E. Shaw & Co., Inc. | History | No change | 1,138,500 | 12,056 | 0.01% | 0.01% | 7 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Added to | 1,050,132 | 11,120 | 0.11% | 0.08% | 8 | +66,518 | 6.76% | Q1 2026 | May 04, 2026 |
| Polar Asset Management Partners Inc. | History | No change | 1,025,000 | 10,813 | 0.22% | 0.14% | 9 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MIZUHO SECURITIES USA LLC | History | Added to | 714,774 | 7,490 | 0.18% | 0.01% | 10 | +630,671 | 749.88% | Q1 2026 | May 11, 2026 |
| HEIGHTS CAPITAL MANAGEMENT, INC | History | No change | 700,000 | 7,413 | 2.07% | 2.62% | 11 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Radcliffe Capital Management, L.P. | History | Added to | 675,001 | 7,148 | 0.54% | 0.38% | 12 | +12,571 | 1.9% | Q1 2026 | May 15, 2026 |
| Mint Tower Capital Management B.V. | History | No change | 650,000 | 6,884 | 0.62% | 0.78% | 13 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | History | No change | 600,000 | 6,354 | 0.1% | 0.09% | 14 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Magnetar Financial LLC | History | No change | 600,000 | 6,330 | 0.06% | 0.06% | 15 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| First Trust Capital Management L.P. | History | Reduced | 562,500 | 5,956 | 0.31% | 0.36% | 16 | -5,000 | -0.88% | Q1 2026 | May 14, 2026 |
| Calamos Advisors LLC | History | No change | 500,000 | 5,310 | 0.02% | 0.02% | 17 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | No change | 474,821 | 5,028 | 0.0% | 0.01% | 18 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| LMR Partners LLP | History | No change | 443,751 | 4,699 | 0.01% | 0.01% | 19 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| BERKLEY W R CORP | History | Added to | 430,362 | 4,557 | 0.24% | 0.17% | 20 | +84,097 | 24.29% | Q1 2026 | May 15, 2026 |
| Bulldog Investors, LLP | History | Reduced | 408,760 | 4,328 | 0.97% | 0.95% | 21 | -1,378 | -0.34% | Q1 2026 | May 08, 2026 |
| Wealthspring Capital LLC | History | No change | 400,333 | 4,239 | 1.01% | 0.98% | 22 | 0 | 0.0% | Q1 2026 | May 01, 2026 |
| TORONTO DOMINION BANK | History | Reduced | 400,000 | 4,236 | 0.01% | 0.01% | 23 | -202,500 | -33.61% | Q1 2026 | May 15, 2026 |
| PICTON MAHONEY ASSET MANAGEMENT | History | No change | 400,000 | 4,236 | 0.03% | 0.03% | 24 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Verition Fund Management LLC | History | Added to | 374,737 | 3,968 | 0.03% | 0.01% | 25 | +234,913 | 168.01% | Q1 2026 | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | History | No change | 360,208 | 3,814 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | History | Reduced | 359,513 | 3,807 | 0.19% | 0.2% | 27 | -40,000 | -10.01% | Q1 2026 | May 15, 2026 |
| Crossingbridge Advisors, LLC | History | Added to | 327,398 | 3,466 | 0.63% | — | 28 | +327,381 | 1925770.59% | Q1 2026 | May 14, 2026 |
| PERISCOPE CAPITAL INC. | History | Reduced | 325,000 | 3,428 | 0.38% | 0.57% | 29 | -154,098 | -32.16% | Q1 2026 | May 13, 2026 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | Reduced | 300,000 | 3,177 | 0.02% | 0.03% | 30 | -200,000 | -40.0% | Q1 2026 | May 01, 2026 |
| MANGROVE PARTNERS IM, LLC | History | No change | 280,470 | 2,970 | 0.24% | 0.24% | 31 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Shaolin Capital Management LLC | History | Reduced | 250,006 | 2,647 | 0.1% | 0.13% | 32 | -149,994 | -37.5% | Q1 2026 | May 15, 2026 |
| GABELLI & Co INVESTMENT ADVISERS, INC. | History | No change | 220,100 | 2,330 | 0.35% | 0.34% | 33 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| SONA ASSET MANAGEMENT (US) LLC | History | New | 206,468 | 2,186 | 0.05% | — | 34 | +206,468 | New | Q1 2026 | May 15, 2026 |
| WHITEBOX ADVISORS LLC | History | No change | 175,000 | 1,853 | 0.02% | 0.03% | 35 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| GABELLI FUNDS LLC | History | No change | 154,900 | 1,640 | 0.01% | 0.01% | 36 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Yakira Capital Management, Inc. | History | Reduced | 147,541 | 1,562 | 0.46% | 0.53% | 37 | -2,459 | -1.64% | Q1 2026 | May 14, 2026 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | History | New | 121,824 | 1,285 | 0.04% | — | 38 | +121,824 | New | Q1 2026 | May 15, 2026 |
| O'Connor Alternative Investments LLC | History | New | 100,000 | 1,059 | 0.09% | — | 39 | +100,000 | New | Q1 2026 | May 15, 2026 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | History | No change | 100,000 | 1,042 | 0.12% | 0.12% | 40 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | New | 50,229 | 531 | 0.0% | — | 41 | +50,229 | New | Q1 2026 | May 12, 2026 |
| READYSTATE ASSET MANAGEMENT LP | History | No change | 50,000 | 529 | 0.02% | 0.02% | 42 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| JPMORGAN CHASE & CO | History | New | 50,000 | 527 | 0.0% | — | 43 | +50,000 | New | Q1 2026 | May 13, 2026 |
| DELTEC ASSET MANAGEMENT LLC | History | No change | 40,000 | 423 | 0.08% | 0.07% | 44 | 0 | 0.0% | Q1 2026 | Apr 24, 2026 |
| CSS LLC/IL | History | New | 35,424 | 375 | 0.02% | — | 45 | +35,424 | New | Q1 2026 | May 15, 2026 |
| Schonfeld Strategic Advisors LLC | History | No change | 29,982 | 317 | 0.0% | 0.0% | 46 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| HGC Investment Management Inc. | History | Reduced | 25,000 | 264 | 0.06% | 3.26% | 47 | -1,450,200 | -98.31% | Q1 2026 | May 15, 2026 |
| Clear Street Group Inc. | History | No change | 18,106 | 192 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| ABC ARBITRAGE SA | History | No change | 15,000 | 158 | 0.02% | 0.01% | 49 | 0 | 0.0% | Q1 2026 | May 04, 2026 |