Algoma Steel Group Inc. Common Shares (ASTL) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for ASTL. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 95 institutions reported holding ASTL, with 72.1 million shares worth $291.8 million in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| Maple Rock Capital Partners | 16,861,818 | $68M | INCREASED |
| Mmcap International Inc. Spc | 10,954,738 | $44M | DECREASED |
| Donald Smith & Co | 5,277,631 | $21M | DECREASED |
| BlackRock | 4,143,265 | $17M | INCREASED |
| Scheer, Rowlett & Associates Investment Management Ltd | 3,846,390 | $16M | INCREASED |
Full institutional holdings, insider history, and congressional trades for Algoma Steel Group Inc. Common Shares on SentiSense.