Reporting Manager
Maple Rock Capital Partners Inc.
Symbol
ASTL
Shares outstanding
105,217,519 shares
Disclosed Ownership
13,993,930 shares
Ownership
13%
Form type
SCHEDULE 13G/A
Filing time
07 Nov 2025, 16:12:18 UTC
Date of event
31 Oct 2025
Previous filing
28 Aug 2025

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Quoteable Key Fact

"Maple Rock Capital Partners Inc. disclosed 13% ownership in Algoma Steel Group Inc. Common Shares, no par value (ASTL) on 31 Oct 2025."

Quick Takeaways

  • Maple Rock Capital Partners Inc. filed SCHEDULE 13G/A for Algoma Steel Group Inc. Common Shares, no par value (ASTL).
  • Disclosed ownership: 13%.
  • Date of event: 31 Oct 2025.

What Changed

  • Previous schedule filing date: 28 Aug 2025.
  • Current filing was accepted on 07 Nov 2025, 16:12.

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 (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Maple Rock Capital Partners Inc. 13% 13,993,930 13,993,930 0 /s/ Stephen D. Lane Stephen D. Lane, Chief Financial Officer
Xavier Majic 13% 13,993,930 13,993,930 0 /s/ Xavier Majic Xavier Majic