Who owns Artius II Acquisition Inc., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Polar Asset Management Partners Inc.: 3.6% · 812,332 shares
HGC Investment Management Inc: 6.8% · 1,500,000 shares
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Artius II Acquisition Inc. they hold.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| HGC Investment Management Inc. | $15.7M | 1,500,000 | 3.11% | — | June 30, 2026 |
| AQR Arbitrage LLC | $15.1M | 1,440,225 | 0.21% | — | June 30, 2026 |
55 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| First Trust Merger Arbitrage Fund | $3.24M | 0.20% | — | March 31, 2026 |
| RiverNorth Opportunities Fund Inc. | $1.05M | 0.32% | — | June 30, 2026 |
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