GP-Act III Acquisition Corp. - GPAT
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Karpus Management, Inc. | History | Added to | 2,331,866 | 24,927 | 0.77% | 0.77% | 1 | +25,050 | 1.09% | Q4 2025 | Feb 17, 2026 |
| First Trust Capital Management L.P. | History | No change | 2,091,077 | 22,353 | 1.35% | 1.43% | 2 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| PICTON MAHONEY ASSET MANAGEMENT | History | No change | 1,875,000 | 20,043 | 0.16% | 0.18% | 3 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Alberta Investment Management Corp | History | No change | 1,625,000 | 17,387 | 0.1% | 0.12% | 4 | 0 | 0.0% | Q4 2025 | Feb 19, 2026 |
| AQR Arbitrage LLC | History | No change | 1,576,119 | 16,864 | 0.35% | 0.42% | 5 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | History | No change | 1,423,125 | 15,227 | 0.01% | 0.01% | 6 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| HGC Investment Management Inc. | History | No change | 1,375,000 | 14,698 | 3.12% | 3.55% | 7 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Westchester Capital Management, LLC | History | Added to | 1,360,852 | 14,561 | 0.61% | 0.54% | 8 | +250,000 | 22.51% | Q4 2025 | Feb 13, 2026 |
| MMCAP International Inc. SPC | History | No change | 1,275,000 | 13,629 | 1.36% | 1.57% | 9 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| LMR Partners LLP | History | No change | 1,225,000 | 13,095 | 0.02% | 0.06% | 10 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Polar Asset Management Partners Inc. | History | New | 1,174,996 | 12,560 | 0.16% | — | 11 | +1,174,996 | New | Q4 2025 | Feb 17, 2026 |
| Wealthspring Capital LLC | History | Reduced | 1,018,282 | 10,885 | 2.57% | 2.6% | 12 | -13,581 | -1.32% | Q4 2025 | Feb 05, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Reduced | 951,749 | 10,174 | 0.08% | 0.07% | 13 | -3,117 | -0.33% | Q4 2025 | Feb 02, 2026 |
| LINDEN ADVISORS LP | History | No change | 797,584 | 8,534 | 0.05% | 0.06% | 14 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | History | No change | 750,000 | 8,017 | 0.11% | 0.1% | 15 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | No change | 625,000 | 6,681 | 0.01% | 0.01% | 16 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Radcliffe Capital Management, L.P. | History | Added to | 573,222 | 6,127 | 0.33% | 0.38% | 17 | +327 | 0.06% | Q4 2025 | Feb 17, 2026 |
| L1 Global Manager Pty Ltd | History | New | 567,566 | 6,067 | 3.97% | — | 18 | +567,566 | New | Q4 2025 | Feb 13, 2026 |
| ARISTEIA CAPITAL, L.L.C. | History | No change | 490,750 | 5,246 | 0.11% | 0.12% | 19 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | History | Reduced | 420,111 | 4,490 | 0.21% | 0.25% | 20 | -821 | -0.2% | Q4 2025 | Feb 17, 2026 |
| HEIGHTS CAPITAL MANAGEMENT, INC | History | Reduced | 416,096 | 4,452 | 1.6% | 1.27% | 21 | -5,079 | -1.21% | Q4 2025 | Feb 17, 2026 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | No change | 412,264 | 4,407 | 0.02% | 0.02% | 22 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| METEORA CAPITAL, LLC | History | Added to | 408,719 | 4,369 | 0.37% | 0.28% | 23 | +157,689 | 62.82% | Q4 2025 | Feb 17, 2026 |
| TORONTO DOMINION BANK | History | Reduced | 400,000 | 4,276 | 0.01% | 0.01% | 24 | -461,649 | -53.58% | Q4 2025 | Feb 17, 2026 |
| PERISCOPE CAPITAL INC. | History | No change | 344,000 | 3,677 | 0.42% | 0.58% | 25 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| MIZUHO SECURITIES USA LLC | History | Added to | 319,909 | 3,382 | 0.06% | 0.04% | 26 | +119,909 | 59.95% | Q4 2025 | Feb 09, 2026 |
| BERKLEY W R CORP | History | Added to | 312,290 | 3,338 | 0.16% | 0.18% | 27 | +14,298 | 4.8% | Q4 2025 | Feb 13, 2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | History | No change | 295,938 | 3,166 | 0.01% | 0.01% | 28 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 290,000 | 3,100 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | History | Reduced | 250,000 | 2,675 | 3.7% | 0.6% | 30 | -100,000 | -28.57% | Q4 2025 | Mar 04, 2026 |
| Jain Global LLC | History | No change | 250,000 | 2,675 | 0.01% | 0.01% | 31 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GLAZER CAPITAL, LLC | History | Reduced | 250,100 | 2,674 | 0.07% | 0.09% | 32 | -10,000 | -3.84% | Q4 2025 | Feb 13, 2026 |
| Verition Fund Management LLC | History | Added to | 229,124 | 2,451 | 0.01% | 0.01% | 33 | +1,500 | 0.66% | Q4 2025 | Feb 13, 2026 |
| MOORE CAPITAL MANAGEMENT, LP | History | No change | 200,000 | 2,138 | 0.03% | 0.03% | 34 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 137,739 | 1,472 | 0.0% | 0.0% | 35 | -84 | -0.06% | Q4 2025 | Mar 25, 2026 |
| Shaolin Capital Management LLC | History | Added to | 125,000 | 1,336 | 0.04% | 0.05% | 36 | +25,000 | 25.0% | Q4 2025 | Feb 17, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | No change | 80,000 | 855 | 0.0% | 0.0% | 37 | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |
| Lineage Point Capital LP | History | New | 65,000 | 694 | 0.26% | — | 38 | +65,000 | New | Q4 2025 | Feb 26, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 49,816 | 533 | 0.0% | 0.0% | 39 | +82 | 0.16% | Q4 2025 | Feb 11, 2026 |
| Dakota Wealth Management | History | No change | 48,400 | 517 | 0.01% | 0.01% | 40 | 0 | 0.0% | Q4 2025 | Jan 13, 2026 |
| Kepos Capital LP | History | No change | 42,500 | 454 | 2.58% | 2.4% | 41 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Clear Street Group Inc. | History | No change | 25,080 | 267 | 0.0% | 0.0% | 42 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| ROBINSON CAPITAL MANAGEMENT, LLC | History | No change | 22,250 | 238 | 0.1% | 0.12% | 43 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Wellspring Financial Advisors, LLC | History | No change | 21,200 | 226 | 0.02% | 0.02% | 44 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Schonfeld Strategic Advisors LLC | History | Reduced | 18,053 | 192 | 0.0% | 0.0% | 45 | -1,138 | -5.93% | Q4 2025 | Feb 17, 2026 |
| TrueMark Investments, LLC | History | Reduced | 16,017 | 171 | 0.03% | 0.03% | 46 | -821 | -4.88% | Q4 2025 | Jan 14, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 14,909 | 159 | 0.0% | 0.0% | 47 | -3,857 | -20.55% | Q4 2025 | Feb 17, 2026 |
| Cannon Global Investment Management, LLC | History | Added to | 14,500 | 155 | 0.39% | 0.17% | 48 | +4,000 | 38.1% | Q4 2025 | Jan 27, 2026 |
| CONDOR CAPITAL MANAGEMENT | History | No change | 10,632 | 113 | 0.01% | 0.01% | 49 | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | History | No change | 7,800 | 83 | 0.02% | 0.02% | 50 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| UBS Group AG | History | Reduced | 6,201 | 66 | 0.0% | 0.0% | 51 | -8,926 | -59.01% | Q4 2025 | Jan 29, 2026 |
| DLD Asset Management, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -150,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Quarry LP | History | Closed out | 0 | 0 | — | 0.15% | — | -64,977 | -100.0% | Q3 2025 | Nov 14, 2025 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | 0.0% | — | -8,000 | -100.0% | Q3 2025 | Feb 03, 2026 |
| MORGAN STANLEY | History | Added to | 79 | 0 | — | — | — | +23 | 41.07% | Q4 2025 | Feb 13, 2026 |