# ARTIUS II ACQUISITION INC (AACBR)

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

- Reporting holders: 33
- Reported value: $4.4M
- 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 |
|---|---|---|---|---|
| [HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND](https://holderbook.com/funds/1535845-healthcare-of-ontario-pension-plan-trust-fund/) | $420.0K | 2,000,000 | 0.0% | 5 |
| [Sculptor Capital LP](https://holderbook.com/funds/1054587-sculptor-capital-lp/) | $415.8K | 1,980,000 | 0.0% | 5 |
| [Polar Asset Management Partners Inc.](https://holderbook.com/funds/1326389-polar-asset-management-partners-inc/) | $315.0K | 1,500,000 | 0.0% | 5 |
| [HGC Investment Management Inc.](https://holderbook.com/funds/1711200-hgc-investment-management-inc/) | $315.0K | 1,500,000 | 0.1% | 4 |
| [AQR Arbitrage LLC](https://holderbook.com/funds/1167456-aqr-arbitrage-llc/) | $314.9K | 1,499,545 | 0.0% | 5 |
| [Linden Advisors LP](https://holderbook.com/funds/1279396-linden-advisors-lp/) | $312.8K | 1,375,000 | 0.0% | 5 |
| [Harraden Circle Investments, LLC](https://holderbook.com/funds/1910592-harraden-circle-investments-llc/) | $281.7K | 1,341,436 | 0.0% | 5 |
| [HBK INVESTMENTS L P](https://holderbook.com/funds/1011443-hbk-investments-l-p/) | $210.0K | 1,000,000 | 0.0% | 5 |
| [Alberta Investment Management Corp](https://holderbook.com/funds/1463559-alberta-investment-management-corp/) | $205.8K | 980,000 | 0.0% | 5 |
| [MILLENNIUM MANAGEMENT LLC](https://holderbook.com/funds/1273087-millennium-management-llc/) | $147.0K | 700,000 | 0.0% | 5 |
| [Magnetar Financial LLC](https://holderbook.com/funds/1352851-magnetar-financial-llc/) | $126.0K | 600,000 | 0.0% | 5 |
| [Meteora Capital, LLC](https://holderbook.com/funds/1905106-meteora-capital-llc/) | $117.5K | 559,649 | 0.0% | 5 |
| [TORONTO DOMINION BANK](https://holderbook.com/funds/947263-toronto-dominion-bank/) | $113.9K | 542,153 | 0.0% | 5 |
| [Shaolin Capital Management LLC](https://holderbook.com/funds/1766806-shaolin-capital-management-llc/) | $105.9K | 504,369 | 0.0% | 5 |
| [MOORE CAPITAL MANAGEMENT, LP](https://holderbook.com/funds/1448574-moore-capital-management-lp/) | $105.0K | 500,000 | 0.0% | 5 |
| [PICTON MAHONEY ASSET MANAGEMENT](https://holderbook.com/funds/1539041-picton-mahoney-asset-management/) | $105.0K | 500,000 | 0.0% | 5 |
| [BNP PARIBAS FINANCIAL MARKETS](https://holderbook.com/funds/1166588-bnp-paribas-financial-markets/) | $97.2K | 462,795 | 0.0% | 3 |
| [COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS](https://holderbook.com/funds/1083190-commonwealth-of-pennsylvania-public-school-empls-retrmt-sys/) | $76.5K | 364,209 | 0.0% | 5 |
| [Alpine Global Management, LLC](https://holderbook.com/funds/1581655-alpine-global-management-llc/) | $68.2K | 324,602 | 0.0% | 5 |
| [GLAZER CAPITAL, LLC](https://holderbook.com/funds/1076809-glazer-capital-llc/) | $58.0K | 275,000 | 0.0% | 5 |
| [Radcliffe Capital Management, L.P.](https://holderbook.com/funds/1218275-radcliffe-capital-management-l-p/) | $56.9K | 250,049 | 0.0% | 4 |
| [Clear Street Group Inc.](https://holderbook.com/funds/1881567-clear-street-group-inc/) | $47.2K | 224,818 | 0.0% | 4 |
| [GRITSTONE ASSET MANAGEMENT LLC](https://holderbook.com/funds/1964236-gritstone-asset-management-llc/) | $41.5K | 197,655 | 0.0% | 5 |
| [Verition Fund Management LLC](https://holderbook.com/funds/1454027-verition-fund-management-llc/) | $39.5K | 188,206 | 0.0% | 5 |
| [SUSQUEHANNA INTERNATIONAL GROUP, LLP](https://holderbook.com/funds/1446194-susquehanna-international-group-llp/) | $39.3K | 187,011 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 33 | $4.4M |
| Q1 2026 | 34 | $5.9M |
| Q4 2025 | 34 | $6.9M |
| Q3 2025 | 35 | $4.8M |
| Q2 2025 | 32 | $4.7M |