Polar Asset Management Partners Inc. - 31 Dec 2025 SCHEDULE 13G/A Report for Artius II Acquisition Inc. Class A ordinary shares, par value $0.0001 per share (AACB)

Filing Manager
Polar Asset Management Partners Inc.
Reporting Manager
Polar Asset Management Partners Inc.
Security
Artius II Acquisition Inc. Class A ordinary shares, par value $0.0001 per share
Symbol
AACB
Shares outstanding
22,564,778 shares
Disclosed Ownership
812,332 shares
Ownership
3.6%
Form type
SCHEDULE 13G/A
Filing time
17 Feb 2026, 09:18:25 UTC
Date of event
31 Dec 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Polar Asset Management Partners Inc. disclosed 3.6% ownership in Artius II Acquisition Inc. Class A ordinary shares, par value $0.0001 per share (AACB) on 31 Dec 2025."

Quick Takeaways

  • Polar Asset Management Partners Inc. filed SCHEDULE 13G/A for Artius II Acquisition Inc. Class A ordinary shares, par value $0.0001 per share (AACB).
  • Disclosed ownership: 3.6%.
  • Date of event: 31 Dec 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 17 Feb 2026, 09:18.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Polar Asset Management Partners Inc. 3.6% 812,332 812,332 0 Andrew Ma Chief Compliance Officer

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