Artius II Acquisition Inc. Class AAACB
13F holders, Q1 2026 (March 31)52holders +5
4new positions
0sold out
2famous investors
$10.34avg. 13F price*
At the end of Q1 2026, 52 institutions reported holding Artius II Acquisition Inc. Class A (AACB) in their 13F filings, up 5 from Q4 2025. 4 opened new positions and 0 sold out. The largest holders were HGC Investment Management Inc. ($15.5M), AQR Arbitrage LLC ($14.8M) and Glazer Capital, LLC ($13.4M). 2 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Artius II Acquisition Inc. Class A
- CUSIP
- G0509J115
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $2.8M |
| Exits | 0 | $0 |
All 13F filers, Q4 2025 → Q1 2026: 672,667 shares bought and 608,335 shares sold, net +64,332 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 52 holders
| HGC Investment Management Inc. | 3.47% | No change | 1,500,000 | $15.5M |
| AQR Arbitrage LLC | 0.29% | Reduce -3.9% | 1,432,183 | $14.8M |
| Glazer Capital, LLC | 0.30% | Add +12.1% | 1,295,029 | $13.4M |
| Linden Advisors LP | 0.60% | No change | 1,000,000 | $10.3M |
| Westchester Capital Management, LLC | 0.50% | No change | 995,939 | $10.3M |
| Alberta Investment Management Corp | 0.07% | No change | 980,000 | $10.1M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | No change | 850,000 | $8.8M |
| Polar Asset Management Partners Inc. | 0.27% | Reduce -1.5% | 800,000 | $8.3M |
| Picton Mahoney Asset Management | 0.08% | No change | 750,000 | $7.8M |
| Two Sigma Investments, LP | 0.01% | No change | 725,000 | $7.5M |
| Radcliffe Capital Management, L.P. | 0.79% | Add +1.7% | 678,671 | $7.0M |
| Magnetar Financial LLC | 0.07% | No change | 600,000 | $6.2M |
| D. E. Shaw & Co. | 0.01% | No change | 600,000 | $6.2M |
| Shaolin Capital Management LLC | 0.63% | Add +12.2% | 550,000 | $5.7M |
| Hudson Bay Capital Management LP | 0.04% | No change | 550,000 | $5.7M |
| Moore Capital Management, LP | 0.21% | No change | 500,000 | $5.2M |
| Sculptor Capital LP | 0.12% | No change | 500,000 | $5.2M |
| HBK Investments L P | 0.07% | No change | 499,998 | $5.2M |
| Goldman Sachs Group Inc. | 0.00% | No change | 462,806 | $4.8M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.02% | Reduce -0.5% | 398,075 | $4.1M |
| Berkley W R Corp. | 0.22% | No change | 396,960 | $4.1M |
| First Trust Capital Management L.P. | 0.21% | No change | 380,000 | $3.9M |
| Periscope Capital Inc. | 0.71% | Reduce -16.7% | 375,000 | $3.9M |
| Jain Global LLC | 0.05% | Reduce -26.6% | 366,849 | $3.8M |
| Mangrove Partners Im, LLC | 0.30% | Reduce -20.9% | 356,172 | $3.7M |
| Verition Fund Management LLC | 0.04% | Reduce -0.8% | 354,691 | $3.7M |
| RLH Capital LLC | 1.69% | — | 320,996 | $3.3M |
| Rivernorth Capital Management, LLC | 0.15% | No change | 297,500 | $3.1M |
| Governors Lane LP | 0.32% | No change | 250,000 | $2.6M |
| Schonfeld Strategic Advisors LLC | 0.02% | Add +12.0% | 245,631 | $2.5M |
| Fort Baker Capital Management LP | 0.25% | Add +12.0% | 232,736 | $2.4M |
| Toronto Dominion Bank | 0.00% | Reduce -38.7% | 225,000 | $2.3M |
| Quarry LP | 0.45% | Add +90.5% | 210,500 | $2.2M |
| Millennium Management | 0.00% | No change | 200,000 | $2.1M |
| Gritstone Asset Management LLC | 2.22% | No change | 197,656 | $2.0M |
| Sona Asset Management (us) LLC | 0.10% | New | 172,874 | $1.8M |
| O'Connor Alternative Investments LLC | 0.09% | — | 160,000 | $1.7M |
| DLD Asset Management, LP | 0.44% | No change | 140,894 | $1.5M |
| Context Capital Management, LLC | 0.32% | No change | 112,191 | $1.2M |
| Meteora Capital, LLC | 0.08% | Add +54.3% | 109,223 | $1.1M |
| Centiva Capital, LP | 0.05% | No change | 100,000 | $1.0M |
| Mizuho Securities USA LLC | 0.02% | Reduce -34.1% | 100,196 | $1.0M |
| L1 Global Manager Pty Ltd | 0.63% | No change | 75,000 | $776K |
| BNP Paribas Financial Markets | 0.00% | New | 55,222 | $570K |
| Boothbay Fund Management, LLC | 0.01% | No change | 45,316 | $469K |
| Clear Street Group Inc. | 0.00% | Reduce -2.6% | 36,973 | $382K |
| Crossingbridge Advisors, LLC | 0.05% | New | 25,000 | $259K |
| Abc Arbitrage SA | 0.03% | No change | 20,000 | $207K |
| Virtu Financial LLC | 0.01% | New | 18,464 | $191K |
| Wolverine Asset Management LLC | 0.01% | Reduce -68.7% | 16,626 | $172K |
| FNY Investment Advisers, LLC | 0.00% | Reduce -47.2% | 112 | $1K |
| Morgan Stanley | 0.00% | Reduce -23.7% | 71 | $734 |
"% of holder's portfolio" is AACB's weight in each manager's 13F, not the share of Artius II Acquisition Inc. Class A the manager owns.