Artius II AcquisitionAACBU
13F holders, Q4 2025 (December 31)3holders
0new positions
0sold out
$10.60avg. 13F price*
At the end of Q4 2025, 3 institutions reported holding Artius II Acquisition Inc. (AACBU) in their 13F filings, unchanged from Q3 2025. 0 opened new positions and 0 sold out. The largest holders were LMR Partners LLP ($4.2M), Clear Street Group Inc. ($526K) and UBS Group AG ($759).
- Company
- Artius II Acquisition Inc.
- CUSIP
- G0509J107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q3 2025 → Q4 2025: 4,485 shares bought and 165 shares sold, net +4,320 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3 holders
| LMR Partners LLP | 0.05% | No change | 400,000 | $4.2M |
| Clear Street Group Inc. | 0.00% | Add +9.9% | 49,638 | $526K |
| UBS Group AG | 0.00% | Reduce -69.3% | 73 | $759 |
"% of holder's portfolio" is AACBU's weight in each manager's 13F, not the share of Artius II Acquisition Inc. the manager owns.