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
13F holders, Q4 2025
Institutional positions in Algoma Steel Group Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 109
- −6 vs. Q3 2025
- Shares held
- 83.1M
- +6.40M (+8.3%) vs. Q3 2025
- Total value
- $346.2M
- +$73.1M (+26.8%) vs. Q3 2025
- New holders
- 24
- 39 more added
- Sold out
- 30
- 26 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ASTL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 95 | $291.8M |
| Q1 2026 | 98 | $297.1M |
| Q4 2025 | 109 | $346.2M |
| Q3 2025 | 118 | $274.8M |
| Q2 2025 | 127 | $552.9M |
| Q1 2025 | 130 | $426.1M |
| Q4 2024 | 135 | $798.6M |
| Q3 2024 | 133 | $795.8M |
| Q2 2024 | 118 | $507.8M |
| Q1 2024 | 108 | $605.3M |
| Q4 2023 | 120 | $716.4M |
| Q3 2023 | 111 | $463.5M |
| Q2 2023 | 117 | $476.1M |
| Q1 2023 | 115 | $534.2M |
| Q4 2022 | 119 | $467.0M |
| Q3 2022 | 114 | $427.9M |
| Q2 2022 | 119 | $950.9M |
| Q1 2022 | 88 | $1.05B |
| Q4 2021 | 68 | $644.8M |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Algoma Steel Group Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Connor, Clark & Lunn Investment Management Ltd. | 2,264,863 | $9.32M | 0.02% | +2,264,863 | New |
| Goldentree Asset Management LP | 2,493,548 | $10.2M | 0.55% | 00.0% | Unchanged |
| Scheer, Rowlett & Associates Investment Management Ltd. | 3,336,525 | $13.7M | 0.94% | −492,404−12.9% | Reduced |
| Littlejohn & Co LLC | 3,446,503 | $14.1M | 7.36% | +752,616+27.9% | Added |
| Invesco Senior Secured Management Inc | 3,233,117 | $18.3M | 44.65% | 00.0% | Unchanged |
| Donald Smith & Co., Inc. | 5,861,631 | $24.0M | 0.45% | −75,389−1.3% | Reduced |
| BlackRock, Inc. | 8,501,903 | $34.9M | 0.00% | +1,168,799+15.9% | Added |
| MMCAP International Inc. SPC | 11,487,861 | $47.1M | 4.71% | +3,409,033+42.2% | Added |
| Maple Rock Capital Partners Inc. | 14,430,818 | $59.2M | 1.95% | +4,000,000+38.3% | Added |
| J. Goldman & Co LP | 0 | $0 | 0.00% | −2,263,011−100.0% | Sold out |
| Contrarian Capital Management, L.L.C. | 0 | $0 | 0.00% | −2,037,686−100.0% | Sold out |
| AYAL Capital Advisors Ltd | 0 | $0 | 0.00% | −1,467,000−100.0% | Sold out |
| Amitell Capital Pte Ltd | 0 | $0 | 0.00% | −864,585−100.0% | Sold out |
| Heartland Advisors Inc | 0 | $0 | 0.00% | −600,000−100.0% | Sold out |
| NewGen Asset Management Ltd | 0 | $0 | 0.00% | −246,097−100.0% | Sold out |
| General American Investors Co Inc | 0 | $0 | 0.00% | −280,136−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −216,333−100.0% | Sold out |
| HITE Hedge Asset Management LLC | 0 | $0 | 0.00% | −214,556−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −212,331−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −201,100−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −164,107−100.0% | Sold out |
| Van Eck Associates Corp | 0 | $0 | 0.00% | −158,682−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −139,162−100.0% | Sold out |
| Vanguard Group Inc | 0 | $0 | 0.00% | −76,477−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −71,755−100.0% | Sold out |
| Nuveen, LLC | 0 | $0 | 0.00% | −69,751−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −62,157−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −58,594−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −47,595−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −43,303−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −28,741−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −26,758−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −22,682−100.0% | Sold out |
| Keebeck Alpha, LP | 0 | $0 | 0.00% | −20,758−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −19,329−100.0% | Sold out |
| Pictet Asset Management Holding SA | 0 | $0 | 0.00% | −13,901−100.0% | Sold out |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −11,941−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −6,626−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −606−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| Point72 Asia (Singapore) Pte. Ltd. | – | – | – | – | Not filed |
| Shell Asset Management Co | – | – | – | – | Not filed |