Algoma Steel Group Inc.
ASTL- Exchange
- Nasdaq
- Industry
- Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
- SEC CIK
- 0001860805
No open-market purchases or sales by Algoma Steel Group Inc. insiders were filed in the last 90 days; 95 institutions reported holding it in 13F filings for Q2 2026, worth $291.8M in total; no superinvestor holds it.
Other share classesASTLW
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −3 vs. previous quarter
- 95
- 13F valueReported value at the end of Q2 2026
- $291.8M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding ASTL, Q2 2026
No superinvestor reported holding ASTL at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Algoma Steel Group Inc. insiders from Form 4, newest first.
No open-market purchases or sales by Algoma Steel Group Inc. insiders are on file.
Top 10 13F holders, Q2 2026
The largest institutional positions in Algoma Steel Group Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Maple Rock Capital Partners Inc. | 16,861,818 | $68.3M | 1.34% | +931,000+5.8% | Added |
| MMCAP International Inc. SPC | 10,954,738 | $44.4M | 3.76% | −1,890,884−14.7% | Reduced |
| Donald Smith & Co., Inc. | 5,277,631 | $21.4M | 0.38% | −751,298−12.5% | Reduced |
| BlackRock, Inc. | 4,143,265 | $16.8M | 0.00% | +27,812+0.7% | Added |
| Scheer, Rowlett & Associates Investment Management Ltd. | 3,846,390 | $15.7M | 1.13% | +638,910+19.9% | Added |
| Morgan Stanley | 2,958,350 | $12.0M | 0.00% | +1,474,639+99.4% | Added |
| Aegis Financial Corp | 1,786,122 | $7.23M | 1.14% | 00.0% | Unchanged |
| CDC Financial, Inc. | 1,745,647 | $7.07M | 5.43% | +131,898+8.2% | Added |
| Brightline Capital Management, LLC | 1,660,000 | $6.72M | 1.46% | +1,660,000 | New |
| Littlejohn & Co LLC | 1,518,714 | $6.15M | 7.83% | −1,927,789−55.9% | Reduced |
Holders of 5% or more of ASTL
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Algoma Steel Group Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Donald Smith & Co., Inc. | 13G | 7.80%8.07M shares | New | Feb 13, 20251 filing | Feb 13, 2025 | SEC |