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, Q3 2025
Institutional positions in Algoma Steel Group Inc. as of Sep 30, 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
- 118
- −9 vs. Q2 2025
- Shares held
- 77.2M
- −3.01M (−3.8%) vs. Q2 2025
- Total value
- $274.8M
- −$278.1M (−50.3%) vs. Q2 2025
- New holders
- 22
- 37 more added
- Sold out
- 31
- 34 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Algoma Steel Group Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Maple Rock Capital Partners Inc. | 10,430,818 | $37.1M | 1.50% | +2,034,018+24.2% | Added |
| MMCAP International Inc. SPC | 8,078,828 | $28.7M | 3.34% | +860,610+11.9% | Added |
| BlackRock, Inc. | 7,333,104 | $26.1M | 0.00% | +948,061+14.8% | Added |
| Donald Smith & Co., Inc. | 5,937,020 | $21.1M | 0.42% | −103,148−1.7% | Reduced |
| Scheer, Rowlett & Associates Investment Management Ltd. | 3,828,929 | $13.6M | 0.81% | −69,276−1.8% | Reduced |
| Invesco Senior Secured Management Inc | 3,233,117 | $11.5M | 35.04% | 00.0% | Unchanged |
| Littlejohn & Co LLC | 2,693,887 | $9.58M | 4.83% | +419,915+18.5% | Added |
| Goldentree Asset Management LP | 2,493,548 | $8.86M | 0.73% | 00.0% | Unchanged |
| J. Goldman & Co LP | 2,263,011 | $8.05M | 0.30% | +26,638+1.2% | Added |
| FMR LLC | 2,214,646 | $7.87M | 0.00% | −1,738,200−44.0% | Reduced |
| Contrarian Capital Management, L.L.C. | 2,037,686 | $7.24M | 1.83% | −1,534,332−43.0% | Reduced |
| Aegis Financial Corp | 1,786,122 | $6.35M | 2.43% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 1,529,100 | $5.44M | 0.06% | +1,518,530+14,366.4% | Added |
| AYAL Capital Advisors Ltd | 1,467,000 | $5.22M | 3.01% | +375,000+34.3% | Added |
| Morgan Stanley | 1,292,103 | $4.59M | 0.00% | +886,902+218.9% | Added |
| LM Asset (IM) Inc. | 1,150,000 | $4.09M | 3.25% | +260,000+29.2% | Added |
| Solas Capital Management, LLC | 1,091,248 | $3.88M | 2.37% | −340,688−23.8% | Reduced |
| JB Capital Partners LP | 992,177 | $3.53M | 0.60% | 00.0% | Unchanged |
| Bracebridge Capital, LLC | 924,931 | $3.29M | 1.37% | 00.0% | Unchanged |
| Amitell Capital Pte Ltd | 864,585 | $3.07M | 2.27% | −215,457−19.9% | Reduced |
| Bain Capital Credit, LP | 837,212 | $2.98M | 0.94% | 00.0% | Unchanged |
| Jane Street Group, LLC | 827,250 | $2.94M | 0.00% | +827,250 | New |
| Millennium Management LLC | 704,380 | $2.50M | 0.00% | +563,628+400.4% | Added |
| TCW Group Inc | 672,678 | $2.39M | 0.02% | −446,543−39.9% | Reduced |
| Readystate Asset Management LP | 640,324 | $2.28M | 0.11% | +75,099+13.3% | Added |
| Heartland Advisors Inc | 600,000 | $2.13M | 0.11% | +100,000+20.0% | Added |
| Citadel Advisors LLC | 584,360 | $2.08M | 0.00% | +263,458+82.1% | Added |
| D. E. Shaw & Co., Inc. | 578,460 | $2.05M | 0.00% | +578,460 | New |
| UBS Group AG | 573,476 | $2.04M | 0.00% | +404,139+238.7% | Added |
| Royal Bank of Canada | 533,022 | $1.90M | 0.00% | +429,162+413.2% | Added |
| Charles Schwab Investment Management Inc | 510,153 | $1.81M | 0.00% | +118,722+30.3% | Added |
| Dimensional Fund Advisors LP | 500,074 | $1.78M | 0.00% | +68,349+15.8% | Added |
| Ewing Morris & Co. Investment Partners Ltd. | 490,000 | $1.74M | 0.74% | +100,000+25.6% | Added |
| Cubist Systematic Strategies, LLC | 464,682 | $1.65M | 0.02% | +464,682 | New |
| Russell Investments Group, Ltd. | 380,598 | $1.35M | 0.00% | −17,439−4.4% | Reduced |
| Jump Financial, LLC | 357,726 | $1.27M | 0.02% | +357,726 | New |
| NewGen Asset Management Ltd | 246,097 | $1.03M | 0.64% | −886,812−78.3% | Reduced |
| General American Investors Co Inc | 280,136 | $995.9K | 0.06% | −535,920−65.7% | Reduced |
| Walleye Capital LLC | 278,955 | $991.7K | 0.01% | +278,955 | New |
| Senvest Management, LLC | 275,089 | $977.9K | 0.03% | 00.0% | Unchanged |
| Bank of America Corp | 272,005 | $967.0K | 0.00% | +75,641+38.5% | Added |
| CenterBook Partners LP | 234,317 | $833.0K | 0.04% | −53,273−18.5% | Reduced |
| Renaissance Technologies LLC | 216,333 | $769.1K | 0.00% | +158,933+276.9% | Added |
| Goldman Sachs Group Inc | 215,446 | $765.9K | 0.00% | −264,553−55.1% | Reduced |
| HITE Hedge Asset Management LLC | 214,556 | $762.7K | 0.04% | 00.0% | Unchanged |
| Moore Capital Management, LP | 212,331 | $754.8K | 0.02% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 201,100 | $714.7K | 0.00% | +201,100 | New |
| Bank of Montreal | 190,117 | $676.8K | 0.00% | +102,460+116.9% | Added |
| Quantbot Technologies LP | 188,597 | $670.5K | 0.02% | +105,428+126.8% | Added |
| Swiss National Bank | 164,107 | $582.8K | 0.00% | −7,400−4.3% | Reduced |
| Van Eck Associates Corp | 158,682 | $564.0K | 0.00% | +62,590+65.1% | Added |
| Susquehanna International Group, LLP | 147,196 | $523.3K | 0.00% | +31,938+27.7% | Added |
| Quinn Opportunity Partners LLC | 142,336 | $506.0K | 0.04% | −34,006−19.3% | Reduced |
| SIG North Trading, ULC | 141,917 | $504.5K | 0.08% | +141,917 | New |
| Orion Resource Partners LP | 139,406 | $494.7K | 0.18% | +86,213+162.1% | Added |
| Trexquant Investment LP | 139,162 | $494.7K | 0.01% | +139,162 | New |
| XTX Topco Ltd | 124,077 | $441.1K | 0.02% | +124,077 | New |
| TD Asset Management Inc | 116,236 | $412.7K | 0.00% | −1,247,064−91.5% | Reduced |
| BNP Paribas Arbitrage, SA | 114,001 | $405.3K | 0.00% | +112,807+9,447.8% | Added |
| Summit Financial, LLC | 110,333 | $392.8K | 0.01% | +110,333 | New |
| Legal & General Group Plc | 88,583 | $362.3K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 96,263 | $342.2K | 0.00% | +96,263 | New |
| Vanguard Group Inc | 76,477 | $271.5K | 0.00% | 00.0% | Unchanged |
| Centiva Capital, LP | 71,755 | $255.1K | 0.02% | +71,755 | New |
| Nuveen, LLC | 69,751 | $247.6K | 0.00% | 00.0% | Unchanged |
| CIBC World Markets Inc. | 66,315 | $235.8K | 0.00% | −33,030−33.2% | Reduced |
| Geode Capital Management, LLC | 63,813 | $226.9K | 0.00% | −50,176−44.0% | Reduced |
| Acadian Asset Management LLC | 62,700 | $221.0K | 0.00% | +59,700+1,990.0% | Added |
| IMC-Chicago, LLC | 62,157 | $221.0K | 0.00% | −53,074−46.1% | Reduced |
| PDT Partners, LLC | 59,990 | $213.3K | 0.01% | +15,818+35.8% | Added |
| LPL Financial LLC | 58,894 | $209.4K | 0.00% | +13,268+29.1% | Added |
| Public Employees Retirement System of Ohio | 58,594 | $208.1K | 0.00% | −521−0.9% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 55,000 | $201.8K | 0.00% | −1,000−1.8% | Reduced |
| Wolverine Asset Management LLC | 54,783 | $194.8K | 0.00% | +54,783 | New |
| Mackenzie Financial Corp | 54,363 | $192.9K | 0.00% | +6,086+12.6% | Added |
| Boston Partners | 53,423 | $189.9K | 0.00% | −14,567−21.4% | Reduced |
| Invesco Ltd. | 52,298 | $185.9K | 0.00% | +7,847+17.7% | Added |
| DekaBank Deutsche Girozentrale | 21,188 | $178.0K | 0.00% | 00.0% | Unchanged |
| Oxford Asset Management LLP | 47,595 | $169.2K | 0.06% | +47,595 | New |
| Nomura Holdings Inc | 46,000 | $163.5K | 0.00% | +46,000 | New |
| Squarepoint Ops LLC | 43,303 | $153.9K | 0.00% | −18,393−29.8% | Reduced |
| Terril Brothers, Inc. | 41,500 | $147.5K | 0.04% | −8,000−16.2% | Reduced |
| American Century Companies Inc | 38,625 | $137.1K | 0.00% | +526+1.4% | Added |
| Phoenix Holdings Ltd. | 35,714 | $127.0K | 0.00% | 00.0% | Unchanged |
| Claret Asset Management Corp | 30,375 | $108.0K | 0.01% | 00.0% | Unchanged |
| Group One Trading, L.P. | 29,623 | $105.3K | 0.00% | −83,457−73.8% | Reduced |
| Graham Capital Management, L.P. | 28,741 | $102.2K | 0.00% | +10,789+60.1% | Added |
| GWM Advisors LLC | 28,299 | $100.6K | 0.00% | +3,400+13.7% | Added |
| Prelude Capital Management, LLC | 26,758 | $95.1K | 0.01% | +26,758 | New |
| Net Worth Advisory Group | 24,397 | $86.7K | 0.03% | −1,563−6.0% | Reduced |
| Assenagon Asset Management S.A. | 22,682 | $80.6K | 0.00% | +22,682 | New |
| Lighthouse Investment Partners, LLC | 22,089 | $78.5K | 0.00% | +22,089 | New |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 21,773 | $77.4K | 0.00% | 00.0% | Unchanged |
| Keebeck Alpha, LP | 20,758 | $73.8K | 0.10% | +20,758 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 19,329 | $68.7K | 0.00% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 15,000 | $53.3K | 0.00% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 13,901 | $49.4K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 11,941 | $42.5K | 0.00% | −239−2.0% | Reduced |
| Toronto Dominion Bank | 10,000 | $41.0K | 0.00% | 00.0% | Unchanged |
| HSBC Holdings PLC | 11,277 | $39.9K | 0.00% | −1,378−10.9% | Reduced |