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 |
|---|---|---|---|---|---|
| Maple Rock Capital Partners Inc. | 14,430,818 | $59.2M | 1.95% | +4,000,000+38.3% | Added |
| MMCAP International Inc. SPC | 11,487,861 | $47.1M | 4.71% | +3,409,033+42.2% | Added |
| BlackRock, Inc. | 8,501,903 | $34.9M | 0.00% | +1,168,799+15.9% | Added |
| Donald Smith & Co., Inc. | 5,861,631 | $24.0M | 0.45% | −75,389−1.3% | Reduced |
| Invesco Senior Secured Management Inc | 3,233,117 | $18.3M | 44.65% | 00.0% | Unchanged |
| Littlejohn & Co LLC | 3,446,503 | $14.1M | 7.36% | +752,616+27.9% | Added |
| Scheer, Rowlett & Associates Investment Management Ltd. | 3,336,525 | $13.7M | 0.94% | −492,404−12.9% | Reduced |
| Goldentree Asset Management LP | 2,493,548 | $10.2M | 0.55% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 2,264,863 | $9.32M | 0.02% | +2,264,863 | New |
| FMR LLC | 2,208,646 | $9.06M | 0.00% | −6,000−0.3% | Reduced |
| Aegis Financial Corp | 1,786,122 | $7.32M | 1.75% | 00.0% | Unchanged |
| TD Asset Management Inc | 1,687,420 | $6.96M | 0.01% | +1,571,184+1,351.7% | Added |
| CDC Financial, Inc. | 1,580,749 | $6.48M | 5.99% | +1,580,749 | New |
| LM Asset (IM) Inc. | 1,470,000 | $6.03M | 4.82% | +320,000+27.8% | Added |
| Verition Fund Management LLC | 1,248,802 | $5.12M | 0.03% | +1,248,802 | New |
| Solas Capital Management, LLC | 1,069,351 | $4.38M | 2.49% | −21,897−2.0% | Reduced |
| Morgan Stanley | 1,040,539 | $4.27M | 0.00% | −251,564−19.5% | Reduced |
| Quadrature Capital Ltd | 1,018,100 | $4.20M | 0.04% | −511,000−33.4% | Reduced |
| UBS Group AG | 944,764 | $3.87M | 0.00% | +371,288+64.7% | Added |
| Bracebridge Capital, LLC | 924,931 | $3.79M | 1.38% | 00.0% | Unchanged |
| JB Capital Partners LP | 872,277 | $3.58M | 0.62% | −119,900−12.1% | Reduced |
| Bain Capital Credit, LP | 825,777 | $3.39M | 0.89% | −11,435−1.4% | Reduced |
| Charles Schwab Investment Management Inc | 702,734 | $2.90M | 0.00% | +192,581+37.7% | Added |
| Jane Street Group, LLC | 701,942 | $2.88M | 0.00% | −125,308−15.1% | Reduced |
| TCW Group Inc | 672,678 | $2.76M | 0.02% | 00.0% | Unchanged |
| Readystate Asset Management LP | 640,324 | $2.63M | 0.12% | 00.0% | Unchanged |
| Ewing Morris & Co. Investment Partners Ltd. | 612,500 | $2.56M | 1.11% | +122,500+25.0% | Added |
| Citadel Advisors LLC | 622,404 | $2.55M | 0.00% | +38,044+6.5% | Added |
| Millennium Management LLC | 596,960 | $2.45M | 0.00% | −107,420−15.3% | Reduced |
| Walleye Capital LLC | 537,234 | $2.20M | 0.01% | +258,279+92.6% | Added |
| D. E. Shaw & Co., Inc. | 523,258 | $2.15M | 0.00% | −55,202−9.5% | Reduced |
| Bank of America Corp | 522,357 | $2.14M | 0.00% | +250,352+92.0% | Added |
| Russell Investments Group, Ltd. | 401,490 | $1.65M | 0.00% | +20,892+5.5% | Added |
| CenterBook Partners LP | 398,845 | $1.64M | 0.08% | +164,528+70.2% | Added |
| Dimensional Fund Advisors LP | 383,587 | $1.57M | 0.00% | −116,487−23.3% | Reduced |
| Orion Resource Partners LP | 381,728 | $1.57M | 0.77% | +242,322+173.8% | Added |
| Prescott Group Capital Management, L.L.C. | 231,219 | $948.0K | 0.09% | +231,219 | New |
| Bank of Montreal | 203,916 | $839.4K | 0.00% | +13,799+7.3% | Added |
| Goldman Sachs Group Inc | 155,250 | $636.5K | 0.00% | −60,196−27.9% | Reduced |
| Royal Bank of Canada | 145,596 | $597.0K | 0.00% | −387,426−72.7% | Reduced |
| XTX Topco Ltd | 143,704 | $589.2K | 0.02% | +19,627+15.8% | Added |
| Quinn Opportunity Partners LLC | 142,336 | $583.6K | 0.03% | 00.0% | Unchanged |
| Quantbot Technologies LP | 127,847 | $524.2K | 0.02% | −60,750−32.2% | Reduced |
| Aristeia Capital LLC | 120,260 | $493.1K | 0.01% | +120,260 | New |
| BNP Paribas Arbitrage, SA | 114,101 | $467.8K | 0.00% | +100+0.1% | Added |
| Summit Financial, LLC | 110,333 | $452.4K | 0.01% | 00.0% | Unchanged |
| Group One Trading, L.P. | 103,187 | $423.1K | 0.01% | +73,564+248.3% | Added |
| SIG North Trading, ULC | 101,917 | $417.9K | 0.07% | −40,000−28.2% | Reduced |
| Mackenzie Financial Corp | 94,776 | $384.0K | 0.00% | +40,413+74.3% | Added |
| FNY Investment Advisers, LLC | 85,993 | $352.0K | 0.10% | +81,463+1,798.3% | Added |
| Senvest Management, LLC | 85,789 | $351.7K | 0.01% | −189,300−68.8% | Reduced |
| Nomura Holdings Inc | 84,567 | $346.7K | 0.00% | +38,567+83.8% | Added |
| PDT Partners, LLC | 78,804 | $323.1K | 0.02% | +18,814+31.4% | Added |
| Lighthouse Investment Partners, LLC | 75,708 | $310.4K | 0.01% | +53,619+242.7% | Added |
| Simplex Trading, LLC | 74,128 | $303.9K | 0.01% | +74,128 | New |
| Two Sigma Advisers, LP | 73,600 | $301.8K | 0.00% | +73,600 | New |
| Wolverine Asset Management LLC | 72,143 | $295.8K | 0.00% | +17,360+31.7% | Added |
| American Century Companies Inc | 69,172 | $284.7K | 0.00% | +30,547+79.1% | Added |
| Boston Partners | 68,598 | $281.3K | 0.00% | +15,175+28.4% | Added |
| Invesco Ltd. | 66,713 | $273.5K | 0.00% | +14,415+27.6% | Added |
| Susquehanna International Group, LLP | 64,380 | $264.0K | 0.00% | −82,816−56.3% | Reduced |
| Geode Capital Management, LLC | 63,813 | $261.6K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 62,194 | $255.0K | 0.00% | +3,300+5.6% | Added |
| Terril Brothers, Inc. | 58,000 | $237.8K | 0.06% | +16,500+39.8% | Added |
| Wealth Enhancement Advisory Services, LLC | 55,000 | $228.3K | 0.00% | 00.0% | Unchanged |
| PenderFund Capital Management Ltd. | 50,000 | $205.8K | 0.03% | +50,000 | New |
| Barclays PLC | 46,246 | $189.6K | 0.00% | +45,877+12,432.8% | Added |
| DekaBank Deutsche Girozentrale | 21,188 | $180.0K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 42,489 | $174.0K | 0.01% | +42,489 | New |
| Voleon Capital Management LP | 40,086 | $164.4K | 0.00% | +40,086 | New |
| HSBC Holdings PLC | 38,754 | $158.9K | 0.00% | +27,477+243.7% | Added |
| Phoenix Holdings Ltd. | 35,714 | $146.4K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 33,330 | $137.4K | 0.00% | −55,253−62.4% | Reduced |
| PharVision Advisers, LLC | 32,839 | $134.6K | 0.07% | +32,839 | New |
| CIBC World Markets Inc. | 32,425 | $132.9K | 0.00% | −33,890−51.1% | Reduced |
| Claret Asset Management Corp | 30,375 | $125.0K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 28,299 | $116.0K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 26,340 | $108.0K | 0.00% | −69,923−72.6% | Reduced |
| Clear Harbor Asset Management, LLC | 26,000 | $106.6K | 0.01% | +26,000 | New |
| Net Worth Advisory Group | 23,643 | $96.9K | 0.02% | −754−3.1% | Reduced |
| Allianz Asset Management GmbH | 21,822 | $89.9K | 0.00% | +21,822 | New |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 21,773 | $89.3K | 0.00% | 00.0% | Unchanged |
| FIL Ltd | 20,570 | $84.7K | 0.00% | +20,570 | New |
| Acadian Asset Management LLC | 19,400 | $79.0K | 0.00% | −43,300−69.1% | Reduced |
| Federation des caisses Desjardins du Quebec | 17,860 | $73.2K | 0.00% | +9,000+101.6% | Added |
| National Bank of Canada | 17,575 | $71.6K | 0.00% | +6,939+65.2% | Added |
| Walleye Trading LLC | 16,374 | $67.1K | 0.00% | +16,374 | New |
| CI Private Wealth, LLC | 15,000 | $61.5K | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 14,201 | $58.2K | 0.00% | −343,525−96.0% | Reduced |
| Victory Capital Management Inc | 11,079 | $45.4K | 0.00% | +224+2.1% | Added |
| EJF Capital LLC | 11,000 | $45.1K | 0.03% | 00.0% | Unchanged |
| JustInvest LLC | 10,798 | $44.3K | 0.00% | +10,798 | New |
| Two Sigma Securities, LLC | 10,274 | $42.1K | 0.01% | +10,274 | New |
| Toronto Dominion Bank | 10,060 | $41.2K | 0.00% | +60+0.6% | Added |
| Element Pointe Advisors, LLC | 10,000 | $41.0K | 0.01% | +10,000 | New |
| Aquatic Capital Management LLC | 8,809 | $36.1K | 0.00% | +8,809 | New |
| Caption Management, LLC | 7,456 | $30.6K | 0.00% | +7,456 | New |
| Citigroup Inc | 7,120 | $29.3K | 0.00% | +3,722+109.5% | Added |
| Aviso Financial Inc. | 6,559 | $27.0K | 0.00% | −90−1.4% | Reduced |
| Quarry LP | 2,426 | $9.95K | 0.00% | +2,426 | New |