HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND - 31 Dec 2025 SCHEDULE 13G/A Report for Artius II Acquisition Inc. Class A ordinary shares, $0.0001 par value (AACB)

Filing Manager
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
Reporting Manager
Healthcare of Ontario Pension Plan Trust Fund
Security
Artius II Acquisition Inc. Class A ordinary shares, $0.0001 par value
Symbol
AACB
Shares outstanding
22,368,421 shares
Disclosed Ownership
850,000 shares
Ownership
3.8%
Form type
SCHEDULE 13G/A
Filing time
13 Feb 2026, 16:00:02 UTC
Date of event
31 Dec 2025
Previous filing
14 May 2025
SEC
View on sec.gov

Sponsored

Quoteable Key Fact

"HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND disclosed 3.8% ownership in Artius II Acquisition Inc. Class A ordinary shares, $0.0001 par value (AACB) on 31 Dec 2025."

Quick Takeaways

  • HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND filed SCHEDULE 13G/A for Artius II Acquisition Inc. Class A ordinary shares, $0.0001 par value (AACB).
  • Disclosed ownership: 3.8%.
  • Date of event: 31 Dec 2025.

What Changed

  • Previous schedule filing date: 14 May 2025.
  • Current filing was accepted on 13 Feb 2026, 16:00.

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
Healthcare of Ontario Pension Plan Trust Fund 3.8% 850,000 850,000 0 /s/ Abas Kanu Abas Kanu, VP, HOOPP Compliance Officer

Sponsored