Filing Manager
Zekelman Industries, Inc.
Reporting Manager
Zekelman Industries, Inc.
Symbol
ASTL
Shares outstanding
104,870,065 shares
Disclosed Ownership
3,229,998 shares
Ownership
3.1%
Form type
SCHEDULE 13D/A
Filing time
23 Sep 2025, 16:15:02 UTC
Date of event
10 Sep 2025

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Quoteable Key Fact

"Zekelman Industries, Inc. disclosed 3.1% ownership in Algoma Steel Group Inc. Common Shares, without par value (ASTL) on 10 Sep 2025."

Quick Takeaways

  • Zekelman Industries, Inc. filed SCHEDULE 13D/A for Algoma Steel Group Inc. Common Shares, without par value (ASTL).
  • Disclosed ownership: 3.1%.
  • Date of event: 10 Sep 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 23 Sep 2025, 16:15.

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
Zekelman Industries, Inc. 3.1% 3,229,998 0 3,229,998 /s/ Michael P. McNamara Michael P. McNamara, President 0001742916
Atlas Tube Canada ULC 3.1% 3,229,998 0 3,229,998 /s/ Michael P. McNamara Michael P. McNamara, Vice President