# ARTIUS II ACQUISITION INC (AACBU)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/AACBU/

- Reporting holders: 3
- Reported value: $4.8M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [LMR Partners LLP](https://holderbook.com/funds/1578621-lmr-partners-llp/) | $4.3M | 400,000 | 0.0% | 6 |
| [Clear Street Group Inc.](https://holderbook.com/funds/1881567-clear-street-group-inc/) | $563.7K | 52,785 | 0.0% | 4 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $737 | 69 | 0.0% | 5 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 3 | $4.8M |
| Q1 2026 | 3 | $4.8M |
| Q4 2025 | 3 | $4.8M |
| Q3 2025 | 3 | $4.6M |
| Q2 2025 | 6 | $25.4M |
| Q1 2025 | 30 | $187.7M |