Artius II AcquisitionAACBU
13F holders, Q2 2025 (June 30)6holders −24
1new positions
2sold out
1famous investor
$10.40avg. 13F price*
At the end of Q2 2025, 6 institutions reported holding Artius II Acquisition Inc. (AACBU) in their 13F filings, down 24 from Q1 2025. 1 opened new positions and 2 sold out. The largest holders were HGC Investment Management Inc. ($15.5M), LMR Partners LLP ($4.2M) and Rivernorth Capital Management, LLC ($3.1M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Artius II Acquisition Inc.
- CUSIP
- G0509J107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $2K |
| Exits | 2 | $7.4M |
All 13F filers, Q1 2025 → Q2 2025: 200 shares bought and 1,427,763 shares sold, net −1,427,563 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 6 holders
| HGC Investment Management Inc. | 4.32% | No change | 1,500,000 | $15.5M |
| LMR Partners LLP | 0.10% | No change | 400,000 | $4.2M |
| Rivernorth Capital Management, LLC | 0.17% | No change | 300,000 | $3.1M |
| Millennium Management | 0.00% | Reduce -71.4% | 200,000 | $2.1M |
| Clear Street LLC | 0.00% | Reduce -81.7% | 44,358 | $466K |
| UBS Group AG | 0.00% | New | 200 | $2K |
"% of holder's portfolio" is AACBU's weight in each manager's 13F, not the share of Artius II Acquisition Inc. the manager owns.