Artius II Acquisition Inc.
Ownership
Ownership Structure
Who owns Artius II Acquisition Inc. (AACB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 86.7% of the shares are freely tradable; institutional investors hold 97.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| HGC Investment Management Inc. | 5.42 | 1,500,000 | +0.0 | 03/31/2026 |
| Cnh Partners, LLC | 5.18 | 1,432,183 | -3.9 | 03/31/2026 |
| Glazer Capital, LLC | 4.68 | 1,295,029 | +12.1 | 03/31/2026 |
| Linden Advisors LLC | 3.61 | 1,000,000 | +0.0 | 03/31/2026 |
| Westchester Capital Management LLC | 3.60 | 995,939 | +0.0 | 03/31/2026 |
| Alberta Investment Management Corp | 3.54 | 980,000 | +0.0 | 06/30/2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 3.07 | 850,000 | +0.0 | 03/31/2026 |
| Polar Asset Management Partners | 2.89 | 800,000 | -1.5 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Westchester Merger Arbitrage Composite | 3.41 | 943,963 | +0.0 | 06/30/2026 |
| The Merger Fund A | 3.41 | 943,963 | +0.0 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: August 27, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.