Algoma Steel Group Inc. · NASDAQ:ASTL

Algoma Steel Group Inc. shareholders

As of Jun 30, 2026, 93 institutions reported holding Algoma Steel Group Inc., 68.4% of its shares. Largest: Maple Rock Capital Partners Inc., MMCAP International Inc. SPC and Donald Smith & Co., Inc. New holders, exits, insiders and big stakes, each with its filing.

HolderShares% of Algoma Steel Group Inc.ChangeFiled
Maple Rock Capital Partners Inc.16.9M16.0%+931KAug 14, 2026
MMCAP International Inc. SPC11M10.4%−1.89MAug 14, 2026
Donald Smith & Co., Inc.5.28M5.0%−751KAug 11, 2026
BlackRock4.14M3.9%+27,812Aug 7, 2026
Scheer, Rowlett & Associates Investment Management Ltd.3.85M3.6%+639KAug 13, 2026
Morgan Stanley2.96M2.8%+1.47MAug 13, 2026
Aegis Financial Corp1.79M1.7%no changeAug 12, 2026
CDC Financial, Inc.1.75M1.7%+132KAug 14, 2026
Brightline Capital Management, LLC1.66M1.6%newAug 14, 2026
Littlejohn & Co LLC1.52M1.4%−1.93MAug 17, 2026

Algoma Steel Group Inc. insider trades