Welcome to our dedicated page for Artius II Acquisition SEC filings (Ticker: AACBU), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Artius II Acquisition Inc. filings document the disclosure framework for a SPAC with units, Class A ordinary shares, rights, contingent rights, sponsor financing, and an initial business-combination mandate. Current Exchange Act reports identify the Nasdaq-traded securities AACBU, AACB, and AACBR, and record material agreements affecting working capital and capital structure.
The filing record includes 8-K disclosure of a convertible unsecured working capital promissory note issued to the sponsor, with terms tied to a business combination, liquidation, default events, and potential conversion into private placement shares. These filings also provide formal context for governance, sponsor economics, redemption-related SPAC mechanics, and securities outstanding.
Artius II Acquisition Inc., a SPAC, reported net income of $245,387 for the quarter ended March 31, 2026, mainly from $2,061,895 of interest on Treasury investments in its trust, offset by $1,816,508 of general and administrative costs.
The trust held $230,141,681, while cash outside the trust was only $20,298 with a working capital deficit of $3,007,591. The company highlights substantial doubt about its ability to continue as a going concern and faces mandatory liquidation if no business combination is completed by the “Completion Window” ending August 14, 2026 (extendable to February 14, 2027 if a deal is signed by August 14, 2026).
Artius II Acquisition Inc., a SPAC, reported net income of $245,387 for the quarter ended March 31, 2026, mainly from $2,061,895 of interest on Treasury investments in its trust, offset by $1,816,508 of general and administrative costs.
The trust held $230,141,681, while cash outside the trust was only $20,298 with a working capital deficit of $3,007,591. The company highlights substantial doubt about its ability to continue as a going concern and faces mandatory liquidation if no business combination is completed by the “Completion Window” ending August 14, 2026 (extendable to February 14, 2027 if a deal is signed by August 14, 2026).
Artius II Acquisition Inc. reported two key developments. First, on March 6, 2026 it issued a convertible, unsecured working capital promissory note of up to $1,000,000 to its sponsor to fund ongoing expenses. The note bears no interest and is repayable upon the earlier of an initial business combination, liquidation, or an event of default.
At the sponsor’s election, the unpaid principal may convert into Class A ordinary shares ("Private Placement Shares") of the company or the surviving business combination company, based on the formula: principal divided by $10.00, multiplied by 1.1, rounded up. Separately, on March 4, 2026 Nasdaq notified the company that it is not in compliance with Listing Rule 5452(a)(2)(A) because it lacks the required minimum 300 public holders of its units and Class A ordinary shares on The Nasdaq Global Market. The notice does not immediately affect the listing, and the company has 45 days to submit a compliance plan and may have up to 180 days to regain compliance.
Artius II Acquisition Inc. reported two key developments. First, on March 6, 2026 it issued a convertible, unsecured working capital promissory note of up to $1,000,000 to its sponsor to fund ongoing expenses. The note bears no interest and is repayable upon the earlier of an initial business combination, liquidation, or an event of default.
At the sponsor’s election, the unpaid principal may convert into Class A ordinary shares ("Private Placement Shares") of the company or the surviving business combination company, based on the formula: principal divided by $10.00, multiplied by 1.1, rounded up. Separately, on March 4, 2026 Nasdaq notified the company that it is not in compliance with Listing Rule 5452(a)(2)(A) because it lacks the required minimum 300 public holders of its units and Class A ordinary shares on The Nasdaq Global Market. The notice does not immediately affect the listing, and the company has 45 days to submit a compliance plan and may have up to 180 days to regain compliance.
HGC Investment Management Inc., a Canadian investment manager, reported beneficial ownership of 1,500,000 shares of Artius II Acquisition Inc. Class A common stock as of December 31, 2025, representing 6.76% of the class.
The shares are held on behalf of The HGC Fund LP, which has the right to receive dividends and sale proceeds. HGC reports sole voting and dispositive power over these shares and certifies they are held in the ordinary course of business, not to change or influence control of Artius II Acquisition Inc.
HGC Investment Management Inc., a Canadian investment manager, reported beneficial ownership of 1,500,000 shares of Artius II Acquisition Inc. Class A common stock as of December 31, 2025, representing 6.76% of the class.
The shares are held on behalf of The HGC Fund LP, which has the right to receive dividends and sale proceeds. HGC reports sole voting and dispositive power over these shares and certifies they are held in the ordinary course of business, not to change or influence control of Artius II Acquisition Inc.
Polar Asset Management Partners Inc. filed an amended Schedule 13G reporting beneficial ownership of 812,332 Class A ordinary shares of Artius II Acquisition Inc., representing 3.6% of the class as of 12/31/2025.
Polar, a Canadian investment adviser, holds sole voting and dispositive power over these shares, which are directly held by Polar Multi-Strategy Master Fund. The filing states the securities were acquired and are held in the ordinary course of business, not to change or influence control of Artius II Acquisition Inc.
Polar Asset Management Partners Inc. filed an amended Schedule 13G reporting beneficial ownership of 812,332 Class A ordinary shares of Artius II Acquisition Inc., representing 3.6% of the class as of 12/31/2025.
Polar, a Canadian investment adviser, holds sole voting and dispositive power over these shares, which are directly held by Polar Multi-Strategy Master Fund. The filing states the securities were acquired and are held in the ordinary course of business, not to change or influence control of Artius II Acquisition Inc.
Healthcare of Ontario Pension Plan Trust Fund (HOOPP) filed an amended Schedule 13G reporting its beneficial ownership of Artius II Acquisition Inc. Class A ordinary shares. HOOPP holds 850,000 Class A shares, representing 3.8% of this share class, based on 22,175,000 shares outstanding as of November 6, 2025.
HOOPP reports sole voting and dispositive power over all 850,000 shares and no shared power. It certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Artius II Acquisition Inc.
Healthcare of Ontario Pension Plan Trust Fund (HOOPP) filed an amended Schedule 13G reporting its beneficial ownership of Artius II Acquisition Inc. Class A ordinary shares. HOOPP holds 850,000 Class A shares, representing 3.8% of this share class, based on 22,175,000 shares outstanding as of November 6, 2025.
HOOPP reports sole voting and dispositive power over all 850,000 shares and no shared power. It certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Artius II Acquisition Inc.
Sculptor Capital and related entities report a collective 1,400,000 Class A Ordinary Shares of Artius II Acquisition Inc., representing 5.92% of the outstanding class. The filing states these shares are held in accounts managed by Sculptor Capital LP and Sculptor Capital II LP and that various holding companies and funds in the Sculptor organizational structure may be deemed beneficial owners. Voting and dispositive power over the reported shares is shared, not sole. The percentage calculation is based on 23,650,000 Common Shares outstanding as disclosed in the issuer's 10-Q filed May 7, 2025. The filing includes certifications that the holdings were not acquired to change or influence control.
AQR Capital Management entities report beneficial ownership of 1,502,205 Class A ordinary shares of Artius II Acquisition Inc., equal to 6.35% of the class. The filing identifies three reporting entities—AQR Capital Management, LLC; AQR Capital Management Holdings, LLC; and AQR Arbitrage, LLC—and states that each has shared voting power and shared dispositive power over the 1,502,205 shares, with no sole voting or dispositive power reported. The filing includes a certification that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. The exhibit clarifies parent/subsidiary relationships among the AQR entities.