Artius II Acquisition Inc. - AACB
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HGC Investment Management Inc. | History | No change | 1,500,000 | 15,450 | 3.28% | 3.72% | 1 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| AQR Arbitrage LLC | History | No change | 1,490,205 | 15,349 | 0.32% | 0.38% | 2 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GLAZER CAPITAL, LLC | History | Reduced | 1,155,161 | 11,898 | 0.31% | 0.41% | 3 | -39,731 | -3.33% | Q4 2025 | Feb 13, 2026 |
| LINDEN ADVISORS LP | History | No change | 1,000,000 | 10,300 | 0.06% | 0.07% | 4 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Westchester Capital Management, LLC | History | No change | 995,939 | 10,258 | 0.43% | 0.46% | 5 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Alberta Investment Management Corp | History | No change | 980,000 | 10,094 | 0.06% | 0.07% | 6 | 0 | 0.0% | Q4 2025 | Feb 19, 2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | History | Reduced | 850,000 | 8,755 | 0.01% | 0.04% | 7 | -1,150,000 | -57.5% | Q4 2025 | Feb 13, 2026 |
| Polar Asset Management Partners Inc. | History | New | 812,332 | 8,367 | 0.11% | — | 8 | +812,332 | New | Q4 2025 | Feb 17, 2026 |
| PICTON MAHONEY ASSET MANAGEMENT | History | No change | 750,000 | 7,725 | 0.06% | 0.07% | 9 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | No change | 725,000 | 7,467 | 0.01% | 0.01% | 10 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Radcliffe Capital Management, L.P. | History | Added to | 667,119 | 6,871 | 0.37% | 0.41% | 11 | +17,119 | 2.63% | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | History | No change | 600,000 | 6,180 | 0.0% | 0.0% | 12 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Magnetar Financial LLC | History | No change | 600,000 | 6,180 | 0.06% | 0.04% | 13 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Hudson Bay Capital Management LP | History | New | 550,000 | 5,665 | 0.02% | — | 14 | +550,000 | New | Q4 2025 | Feb 13, 2026 |
| Sculptor Capital LP | History | Reduced | 500,000 | 5,150 | 0.05% | 0.12% | 15 | -500,000 | -50.0% | Q4 2025 | Feb 13, 2026 |
| MOORE CAPITAL MANAGEMENT, LP | History | No change | 500,000 | 5,150 | 0.07% | 0.07% | 16 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Jain Global LLC | History | No change | 500,000 | 5,150 | 0.02% | 0.02% | 17 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| HBK INVESTMENTS L P | History | No change | 499,998 | 5,149 | 0.04% | 0.06% | 18 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Shaolin Capital Management LLC | History | Added to | 490,000 | 5,047 | 0.16% | 0.16% | 19 | +118,244 | 31.81% | Q4 2025 | Feb 17, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 462,806 | 4,766 | 0.0% | 0.0% | 20 | +11 | 0.0% | Q4 2025 | Mar 25, 2026 |
| PERISCOPE CAPITAL INC. | History | Added to | 450,000 | 4,635 | 0.53% | 0.7% | 21 | +17,200 | 3.97% | Q4 2025 | Feb 10, 2026 |
| MANGROVE PARTNERS IM, LLC | History | Reduced | 449,998 | 4,634 | 0.38% | 0.34% | 22 | -2 | -0.0% | Q4 2025 | Feb 17, 2026 |
| LMR Partners LLP | History | No change | 400,000 | 4,240 | 0.01% | 0.02% | 23 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | No change | 400,000 | 4,120 | 0.02% | 0.02% | 24 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| BERKLEY W R CORP | History | No change | 396,960 | 4,088 | 0.19% | 0.23% | 25 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| First Trust Capital Management L.P. | History | No change | 380,000 | 3,914 | 0.24% | 0.25% | 26 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| TORONTO DOMINION BANK | History | Added to | 366,938 | 3,779 | 0.01% | 0.0% | 27 | +216,938 | 144.63% | Q4 2025 | Feb 17, 2026 |
| Verition Fund Management LLC | History | Added to | 357,357 | 3,680 | 0.01% | 0.0% | 28 | +301,259 | 537.02% | Q4 2025 | Feb 13, 2026 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | History | Reduced | 297,500 | 3,064 | 0.14% | 0.17% | 29 | -2,372 | -0.79% | Q4 2025 | Feb 17, 2026 |
| Governors Lane LP | History | No change | 250,000 | 2,575 | 0.15% | 0.19% | 30 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Schonfeld Strategic Advisors LLC | History | Reduced | 219,394 | 2,259 | 0.01% | 0.01% | 31 | -17,105 | -7.23% | Q4 2025 | Feb 17, 2026 |
| Fort Baker Capital Management LP | History | New | 207,736 | 2,139 | 0.23% | — | 32 | +207,736 | New | Q4 2025 | Feb 17, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | No change | 200,000 | 2,060 | 0.0% | 0.0% | 33 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GRITSTONE ASSET MANAGEMENT LLC | History | No change | 197,656 | 2,035 | 1.94% | 2.07% | 34 | 0 | 0.0% | Q4 2025 | Jan 23, 2026 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | History | No change | 160,000 | 1,648 | 2.28% | 0.26% | 35 | 0 | 0.0% | Q4 2025 | Mar 04, 2026 |
| MIZUHO SECURITIES USA LLC | History | Added to | 152,018 | 1,543 | 0.03% | 0.03% | 36 | +2,000 | 1.33% | Q4 2025 | Feb 09, 2026 |
| DLD Asset Management, LP | History | Added to | 140,894 | 1,451 | 0.11% | 0.03% | 37 | +100,000 | 244.53% | Q4 2025 | Feb 13, 2026 |
| Context Capital Management, LLC | History | No change | 112,191 | 1,155 | 0.03% | 0.04% | 38 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Quarry LP | History | New | 110,500 | 1,138 | 0.18% | — | 39 | +110,500 | New | Q4 2025 | Feb 13, 2026 |
| Centiva Capital, LP | History | No change | 100,000 | 1,030 | 0.01% | 0.01% | 40 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Clear Street Group Inc. | History | Added to | 87,611 | 917 | 0.0% | 0.0% | 41 | +4,485 | 5.4% | Q4 2025 | Feb 13, 2026 |
| L1 Global Manager Pty Ltd | History | New | 75,000 | 772 | 0.51% | — | 42 | +75,000 | New | Q4 2025 | Feb 13, 2026 |
| METEORA CAPITAL, LLC | History | New | 70,773 | 728 | 0.06% | — | 43 | +70,773 | New | Q4 2025 | Feb 17, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Reduced | 53,157 | 547 | 0.0% | 0.0% | 44 | -13,471 | -20.22% | Q4 2025 | Feb 02, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | Reduced | 45,316 | 466 | 0.01% | 0.01% | 45 | -30,000 | -39.83% | Q4 2025 | Feb 17, 2026 |
| ABC ARBITRAGE SA | History | New | 20,000 | 206 | 0.02% | — | 46 | +20,000 | New | Q4 2025 | Feb 04, 2026 |
| FNY Investment Advisers, LLC | History | Reduced | 212 | 2 | 0.0% | 0.0% | 47 | -110 | -34.16% | Q4 2025 | Jan 16, 2026 |
| Virtu Financial LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -13,112 | -100.0% | Q3 2025 | Nov 14, 2025 |
| UBS Group AG | History | Reduced | 73 | 0 | — | 0.0% | — | -165 | -69.33% | Q4 2025 | Jan 29, 2026 |
| MORGAN STANLEY | History | Added to | 93 | 0 | — | — | — | +15 | 19.23% | Q4 2025 | Feb 13, 2026 |