Algoma Steel GroupASTL
13F holders, Q3 2025 (September 30)118holders −9
22new positions
31sold out
5famous investors
$3.56avg. 13F price*
At the end of Q3 2025, 118 institutions reported holding Algoma Steel Group Inc. (ASTL) in their 13F filings, down 9 from Q2 2025. 22 opened new positions and 31 sold out. The largest holders were Maple Rock Capital Partners Inc. ($37.1M), MMCAP International Inc. SPC ($28.7M) and BlackRock, Inc. ($26.1M). 5 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Algoma Steel Group Inc.
- CUSIP
- 015658107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $12.9M |
| Exits | 31 | $61.0M |
All 13F filers, Q2 2025 → Q3 2025: 13,948,713 shares bought and 16,960,595 shares sold, net −3,011,882 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 118 holders
| Maple Rock Capital Partners Inc. | 1.50% | Add +24.2% | 10,430,818 | $37.1M |
| MMCAP International Inc. SPC | 3.42% | Add +11.9% | 8,078,828 | $28.7M |
| BlackRock, Inc. | 0.00% | Add +14.8% | 7,333,104 | $26.1M |
| Donald Smith & Co., Inc. | 0.42% | Reduce -1.7% | 5,937,020 | $21.1M |
| Scheer, Rowlett & Associates Investment Management Ltd. | 0.81% | Reduce -1.8% | 3,828,929 | $13.6M |
| Invesco Senior Secured Management Inc. | 35.04% | No change | 3,233,117 | $11.5M |
| Littlejohn & Co. LLC | 4.83% | Add +18.5% | 2,693,887 | $9.6M |
| Goldentree Asset Management LP | 0.74% | No change | 2,493,548 | $8.9M |
| J. Goldman & Co LP | 0.30% | Add +1.2% | 2,263,011 | $8.0M |
| FMR LLC | 0.00% | Reduce -44.0% | 2,214,646 | $7.9M |
| Contrarian Capital Management, L.L.C. | 1.83% | Reduce -43.0% | 2,037,686 | $7.2M |
| Aegis Financial Corp. | 2.43% | No change | 1,786,122 | $6.3M |
| Quadrature Capital Ltd | 0.06% | Add +14366.4% | 1,529,100 | $5.4M |
| AYAL Capital Advisors Ltd | 3.01% | Add +34.3% | 1,467,000 | $5.2M |
| Morgan Stanley | 0.00% | Add +218.9% | 1,292,103 | $4.6M |
| LM Asset Management Inc. | 3.25% | Add +29.2% | 1,150,000 | $4.1M |
| Solas Capital Management, LLC | 2.37% | Reduce -23.8% | 1,091,248 | $3.9M |
| JB Capital Partners LP | 0.60% | No change | 992,177 | $3.5M |
| Bracebridge Capital, LLC | 1.44% | No change | 924,931 | $3.3M |
| Amitell Capital Pte Ltd | 2.27% | Reduce -19.9% | 864,585 | $3.1M |
| Bain Capital Credit, LP | 0.94% | No change | 837,212 | $3.0M |
| Jane Street Group, LLC | 0.00% | New | 827,250 | $2.9M |
| Millennium Management | 0.00% | Add +400.4% | 704,380 | $2.5M |
| TCW Group Inc. | 0.02% | Reduce -39.9% | 672,678 | $2.4M |
| Readystate Asset Management LP | 0.22% | Add +13.3% | 640,324 | $2.3M |
| Heartland Advisors Inc. | 0.11% | Add +20.0% | 600,000 | $2.1M |
| Citadel Advisors | 0.00% | Add +82.1% | 584,360 | $2.1M |
| D. E. Shaw & Co. | 0.00% | New | 578,460 | $2.1M |
| UBS Group AG | 0.00% | Add +238.7% | 573,476 | $2.0M |
| Royal Bank of Canada | 0.00% | Add +413.2% | 533,022 | $1.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +30.3% | 510,153 | $1.8M |
| Dimensional Fund Advisors LP | 0.00% | Add +15.8% | 500,074 | $1.8M |
| Ewing Morris & Co. Investment Partners Ltd. | 0.75% | Add +25.6% | 490,000 | $1.7M |
| Cubist Systematic Strategies, LLC | 0.02% | New | 464,682 | $1.7M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -4.4% | 380,598 | $1.4M |
| Jump Financial, LLC | 0.02% | New | 357,726 | $1.3M |
| NewGen Asset Management Ltd | 0.69% | Reduce -78.3% | 246,097 | $1.0M |
| General American Investors Co. Inc. | 0.06% | Reduce -65.7% | 280,136 | $996K |
| Walleye Capital LLC | 0.01% | New | 278,955 | $992K |
| Senvest Management, LLC | 0.03% | No change | 275,089 | $978K |
| Bank of America Corp. | 0.00% | Add +38.5% | 272,005 | $967K |
| CenterBook Partners LP | 0.04% | Reduce -18.5% | 234,317 | $833K |
| Renaissance Technologies | 0.00% | Add +276.9% | 216,333 | $769K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -55.1% | 215,446 | $766K |
| HITE Hedge Asset Management LLC | 0.04% | No change | 214,556 | $763K |
| Moore Capital Management, LP | 0.02% | No change | 212,331 | $755K |
| Point72 Asset Management | 0.00% | New | 201,100 | $715K |
| Bank of Montreal | 0.00% | Add +116.9% | 190,117 | $677K |
| Quantbot Technologies LP | 0.02% | Add +126.8% | 188,597 | $670K |
| Swiss National Bank | 0.00% | Reduce -4.3% | 164,107 | $583K |
| Van Eck Associates Corp. | 0.00% | Add +65.1% | 158,682 | $564K |
| Susquehanna International Group, LLP | 0.00% | Add +27.7% | 147,196 | $523K |
| Quinn Opportunity Partners LLC | 0.04% | Reduce -19.3% | 142,336 | $506K |
| SIG North Trading, ULC | 0.08% | New | 141,917 | $505K |
| Orion Resource Partners LP | 0.18% | Add +162.1% | 139,406 | $495K |
| Trexquant Investment LP | 0.01% | New | 139,162 | $495K |
| XTX Topco Ltd | 0.02% | New | 124,077 | $441K |
| TD Asset Management Inc | 0.00% | Reduce -91.5% | 116,236 | $413K |
| BNP Paribas Financial Markets | 0.00% | Add +9447.8% | 114,001 | $405K |
| Summit Financial, LLC | 0.01% | New | 110,333 | $393K |
| Legal & General Group Plc | 0.00% | No change | 88,583 | $362K |
| ExodusPoint Capital Management, LP | 0.00% | New | 96,263 | $342K |
| Vanguard Group Inc. | 0.00% | No change | 76,477 | $271K |
| Centiva Capital, LP | 0.02% | New | 71,755 | $255K |
| Nuveen, LLC | 0.00% | No change | 69,751 | $248K |
| Cibc World Market Inc. | 0.00% | Reduce -33.3% | 66,315 | $236K |
| Geode Capital Management, LLC | 0.00% | Reduce -44.0% | 63,813 | $227K |
| Acadian Asset Management LLC | 0.00% | Add +1990.0% | 62,700 | $221K |
| IMC-Chicago, LLC | 0.00% | Reduce -46.1% | 62,157 | $221K |
| PDT Partners, LLC | 0.01% | Add +35.8% | 59,990 | $213K |
| LPL Financial LLC | 0.00% | Add +29.1% | 58,894 | $209K |
| Public Employees Retirement System of Ohio | 0.00% | Reduce -0.9% | 58,594 | $208K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -1.8% | 55,000 | $202K |
| Wolverine Asset Management LLC | 0.01% | New | 54,783 | $195K |
| Mackenzie Financial Corp. | 0.00% | Add +12.6% | 54,363 | $193K |
| Boston Partners | 0.00% | Reduce -21.4% | 53,423 | $190K |
| Invesco Ltd. | 0.00% | Add +17.6% | 52,298 | $186K |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 21,188 | $178K |
| Oxford Asset Management LLP | 0.06% | New | 47,595 | $169K |
| Nomura Holdings Inc. | 0.00% | New | 46,000 | $164K |
| Squarepoint Ops LLC | 0.00% | Reduce -29.8% | 43,303 | $154K |
| Terril Brothers, Inc. | 0.04% | Reduce -16.2% | 41,500 | $148K |
| American Century Companies Inc. | 0.00% | Add +1.4% | 38,625 | $137K |
| Phoenix Financial Ltd. | 0.00% | No change | 35,714 | $127K |
| Claret Asset Management Corp | 0.01% | No change | 30,375 | $108K |
| Group One Trading LLC | 0.00% | Reduce -73.8% | 29,623 | $105K |
| Graham Capital Management, L.P. | 0.01% | Add +60.1% | 28,741 | $102K |
| NewEdge Advisors, LLC | 0.00% | Add +13.7% | 28,299 | $101K |
| Prelude Capital Management, LLC | 0.01% | New | 26,758 | $95K |
| Net Worth Advisory Group | 0.03% | Reduce -6.0% | 24,397 | $87K |
| Assenagon Asset Management S.A. | 0.00% | New | 22,682 | $81K |
| Lighthouse Investment Partners, LLC | 0.00% | New | 22,089 | $79K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 0.00% | No change | 21,773 | $77K |
| Olympiad Research LP | 0.10% | New | 20,758 | $74K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 19,329 | $69K |
| Corient Private Wealth LP | 0.00% | No change | 15,000 | $53K |
| Pictet Asset Management Holding SA | 0.00% | No change | 13,901 | $49K |
| Alliancebernstein L.P. | 0.00% | Reduce -2.0% | 11,941 | $42K |
| Toronto Dominion Bank | 0.00% | No change | 10,000 | $41K |
| HSBC Holdings PLC | 0.00% | Reduce -10.9% | 11,277 | $40K |
"% of holder's portfolio" is ASTL's weight in each manager's 13F, not the share of Algoma Steel Group Inc. the manager owns.