As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Artius II Acquisition Inc. The largest reported stake is HGC Investment Management Inc's, at 6.76%. 6 filings are on record since August 14, 2025 (Schedule 13G, February 17, 2026).
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Key facts
- · Reporting person: HGC Investment Management Inc · Sole voting: 1,500,000 · Shared voting: 0 · Sole dispositive: 1,500,000 · Shared dispositive: 0 · SCHEDULE 13G, 2026-02-17
- · Reporting person: Polar Asset Management Partners Inc. · Sole voting: 812,332 · Shared voting: 0 · Sole dispositive: 812,332 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-17
- · Reporting person: Healthcare of Ontario Pension Plan Trust Fund · Sole voting: 850,000 · Shared voting: 0 · Sole dispositive: 850,000 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-13
- · Reporting person: Sculptor Capital LP · Sole voting: 0 · Shared voting: 1,000,000 · Sole dispositive: 0 · Shared dispositive: 1,000,000 · SCHEDULE 13G/A, 2025-11-14
- · Holder: Sculptor Capital LP · Percent: 5.92% · SCHEDULE 13G/A
Artius II Acquisition Inc. has 6 Schedule 13D or 13G filings on record since 2025-08-14. 2 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| HGC Investment Management Inc | 6.76% | 1,500,000 | SCHEDULE 13G, 2026-02-17 | 2025-12-31 |
| AQR Capital Management, LLC | 6.35% | 1,502,205 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Sculptor Capital LP | 4.51% | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
| Healthcare of Ontario Pension Plan Trust Fund | 3.8% | 850,000 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
| Polar Asset Management Partners Inc. | 3.6% | 812,332 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
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More on Artius II Acquisition Inc. and the records around it.
Companies that share a holder
- HGC Investment Management Inc also filed stake reports on 2 other companies: Centurion Acquisition Corp. (Feb 2026), Jackson Acquisition Company II (Feb 2026)
- Healthcare of Ontario Pension Plan Trust Fund also filed stake reports on 27 other companies: Cambridge Acquisition Corp. (Aug 2026), General Purpose Acquisition Corp. (May 2026), Better Home & Finance Holding Company (Feb 2026)
- Sculptor Capital LP also filed stake reports on 40 other companies: Helix Acquisition Corp. III (Oct 2026), Live Oak Acquisition Corp. VI (Oct 2026), Amanat Acquisition Corp (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| HGC Investment Management Inc | 1,500,000 | 0 | 1,500,000 | 0 | SCHEDULE 13G, 2026-02-17 |
| Sculptor Capital LP | 0 | 1,000,000 | 0 | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 |
| Sculptor Capital II LP | 0 | 1,000,000 | 0 | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 |
| Sculptor Capital Holding Corp | 0 | 1,000,000 | 0 | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 |
| Sculptor Capital Holding II LLC | 0 | 1,000,000 | 0 | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 |
| Sculptor Capital Management, Inc. | 0 | 1,000,000 | 0 | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 |
| Sculptor Master Fund, Ltd. | 0 | 1,000,000 | 0 | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 |
| Sculptor Special Funding, LP | 0 | 1,000,000 | 0 | 1,000,000 | SCHEDULE 13G/A, 2025-11-14 |
| Healthcare of Ontario Pension Plan Trust Fund | 850,000 | 0 | 850,000 | 0 | SCHEDULE 13G/A, 2026-02-13 |
| Polar Asset Management Partners Inc. | 812,332 | 0 | 812,332 | 0 | SCHEDULE 13G/A, 2026-02-17 |
The latest filing names Artius II Acquisition Inc., with its principal executive office as 3 Columbus Circle, Suite 1609, New York, NY 10019 (SCHEDULE 13G, 2026-02-17).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | Sculptor Capital LP | 5.92% | SCHEDULE 13G/A |
| 2025-08-14 | AQR Capital Management, LLC | 6.35% | SCHEDULE 13G/A |
| 2025-11-14 | Sculptor Capital LP | 4.51% | SCHEDULE 13G/A |
| 2026-02-13 | Healthcare of Ontario Pension Plan Trust Fund | 3.8% | SCHEDULE 13G/A |
| 2026-02-17 | HGC Investment Management Inc | 6.76% | SCHEDULE 13G |
| 2026-02-17 | Polar Asset Management Partners Inc. | 3.6% | SCHEDULE 13G/A |
Questions about who owns Artius II Acquisition Inc.
Who owns Artius II Acquisition Inc.?
On this page, 2 holders' latest ownership filings report 5% or more of Artius II Acquisition Inc.: HGC Investment Management Inc (6.76%, Schedule 13G, filed 2026-02-17) and AQR Capital Management, LLC (6.35%, Schedule 13G/A, filed 2025-08-14).
Who are the largest shareholders of Artius II Acquisition Inc.?
By the share each holder's latest filing reports, the largest holders of Artius II Acquisition Inc. on this page are HGC Investment Management Inc (6.76%) and AQR Capital Management, LLC (6.35%).
When did HGC Investment Management Inc buy into Artius II Acquisition Inc.?
The filings give report dates, not purchase dates. The earliest filing from HGC Investment Management Inc on this page is the Schedule 13G, filed 2026-02-17, reporting 6.76%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 6 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Artius II Acquisition Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| February 14, 2025 | IPO filing, Form 424B4 | — | IPO filings | Source |
| February 10, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| February 6, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| January 29, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| November 27, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
| November 18, 2024 | IPO filing, Form S-1/A | — | IPO filings | Source |
| November 6, 2024 | IPO filing, Form S-1 | — | IPO filings | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.