Artius II AcquisitionAACBRPreferred / convertible
13F holders, Q1 2026 (March 31)34holders
0new positions
1sold out
1famous investor
$0.29avg. 13F price*
At the end of Q1 2026, 34 institutions reported holding Artius II Acquisition Inc. (AACBR) in their 13F filings, unchanged from Q4 2025. 0 opened new positions and 1 sold out. The largest holders were Sculptor Capital LP ($564K), Healthcare of Ontario Pension Plan Trust Fund ($545K) and HGC Investment Management Inc. ($453K). One famous investor held it Israel Englander ( of Millennium Management's portfolio).
- Company
- Artius II Acquisition Inc.
- CUSIP
- G0509J123
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 1 | $11K |
All 13F filers, Q4 2025 → Q1 2026: 16,596 shares bought and 434,485 shares sold, net −417,889 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 34 holders
| Sculptor Capital LP | — | No change | 1,980,000 | $564K |
| Healthcare of Ontario Pension Plan Trust Fund | — | No change | 2,000,000 | $545K |
| HGC Investment Management Inc. | — | No change | 1,500,000 | $453K |
| Polar Asset Management Partners Inc. | — | No change | 1,500,000 | $450K |
| Linden Advisors LP | — | No change | 1,375,000 | $412K |
| AQR Arbitrage LLC | — | Reduce -2.0% | 1,487,405 | $405K |
| Harraden Circle Investments, LLC | — | Reduce -2.7% | 1,341,436 | $405K |
| Alberta Investment Management Corp | — | No change | 980,000 | $296K |
| Millennium Management | — | No change | 700,000 | $211K |
| Toronto Dominion Bank | — | Reduce -2.2% | 600,285 | $181K |
| Magnetar Financial LLC | — | No change | 600,000 | $163K |
| Meteora Capital, LLC | — | Add +3.1% | 559,705 | $151K |
| Moore Capital Management, LP | — | No change | 500,000 | $151K |
| Picton Mahoney Asset Management | — | No change | 500,000 | $151K |
| Shaolin Capital Management LLC | — | Reduce -23.1% | 500,000 | $151K |
| HBK Investments L P | — | No change | 500,000 | $136K |
| BNP Paribas Financial Markets | — | No change | 462,795 | $132K |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | — | No change | 364,209 | $104K |
| Rivernorth Capital Management, LLC | — | No change | 299,872 | $91K |
| Alpine Global Management, LLC | — | Reduce -1.6% | 324,602 | $88K |
| Glazer Capital, LLC | — | Reduce -15.4% | 275,000 | $74K |
| Radcliffe Capital Management, L.P. | — | No change | 250,059 | $71K |
| Clear Street Group Inc. | — | Reduce -0.4% | 226,588 | $68K |
| Gritstone Asset Management LLC | — | No change | 197,655 | $60K |
| Periscope Capital Inc. | — | No change | 175,000 | $50K |
| Context Capital Management, LLC | — | No change | 162,191 | $49K |
| Schonfeld Strategic Advisors LLC | — | Reduce -0.2% | 163,729 | $47K |
| Boothbay Fund Management, LLC | — | No change | 125,316 | $38K |
| DLD Asset Management, LP | — | No change | 106,713 | $32K |
| K2 Principal Fund, L.P. | — | No change | 112,006 | $30K |
| RLH Capital LLC | — | — | 100,000 | $29K |
| Centiva Capital, LP | — | No change | 100,000 | $27K |
| Verition Fund Management LLC | — | Reduce -32.7% | 97,603 | $27K |
| Berkley W R Corp. | — | Reduce -54.1% | 56,952 | $16K |
"% of holder's portfolio" is AACBR's weight in each manager's 13F, not the share of Artius II Acquisition Inc. the manager owns.