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, Q1 2026
Institutional positions in Algoma Steel Group Inc. as of Mar 31, 2026. 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
- 98
- −10 vs. Q4 2025
- Shares held
- 72.0M
- −7.93M (−9.9%) vs. Q4 2025
- Total value
- $297.1M
- −$30.8M (−9.4%) vs. Q4 2025
- New holders
- 15
- 33 more added
- Sold out
- 25
- 31 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Algoma Steel Group Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Maple Rock Capital Partners Inc. | 15,930,818 | $65.8M | 2.14% | +1,500,000+10.4% | Added |
| MMCAP International Inc. SPC | 12,845,622 | $53.1M | 4.58% | +1,357,761+11.8% | Added |
| Donald Smith & Co., Inc. | 6,028,929 | $24.9M | 0.45% | +167,298+2.9% | Added |
| BlackRock, Inc. | 4,115,453 | $17.0M | 0.00% | −4,386,450−51.6% | Reduced |
| Littlejohn & Co LLC | 3,446,503 | $14.2M | 13.49% | 00.0% | Unchanged |
| Scheer, Rowlett & Associates Investment Management Ltd. | 3,207,480 | $13.2M | 0.95% | −129,045−3.9% | Reduced |
| Aegis Financial Corp | 1,786,122 | $7.38M | 1.27% | 00.0% | Unchanged |
| LM Asset (IM) Inc. | 1,765,000 | $7.29M | 4.40% | +295,000+20.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 1,725,758 | $7.12M | 0.02% | −539,105−23.8% | Reduced |
| CDC Financial, Inc. | 1,613,749 | $6.66M | 5.52% | +33,000+2.1% | Added |
| Morgan Stanley | 1,483,711 | $6.13M | 0.00% | +443,172+42.6% | Added |
| Sourcerock Group LLC | 1,306,403 | $5.40M | 0.23% | +1,306,403 | New |
| Solas Capital Management, LLC | 1,047,454 | $4.33M | 2.49% | −21,897−2.0% | Reduced |
| Bracebridge Capital, LLC | 924,931 | $3.82M | 0.69% | 00.0% | Unchanged |
| Jane Street Group, LLC | 895,566 | $3.70M | 0.00% | +193,624+27.6% | Added |
| Quadrature Capital Ltd | 878,540 | $3.61M | 0.04% | −139,560−13.7% | Reduced |
| JB Capital Partners LP | 872,277 | $3.60M | 0.62% | 00.0% | Unchanged |
| TD Asset Management Inc | 841,904 | $3.46M | 0.00% | −845,516−50.1% | Reduced |
| Bain Capital Credit, LP | 825,777 | $3.41M | 1.13% | 00.0% | Unchanged |
| TCW Group Inc | 768,178 | $3.17M | 0.02% | +95,500+14.2% | Added |
| Millennium Management LLC | 766,411 | $3.17M | 0.00% | +169,451+28.4% | Added |
| Ewing Morris & Co. Investment Partners Ltd. | 710,000 | $2.92M | 1.32% | +97,500+15.9% | Added |
| Charles Schwab Investment Management Inc | 598,919 | $2.46M | 0.00% | −103,815−14.8% | Reduced |
| Russell Investments Group, Ltd. | 571,566 | $2.36M | 0.00% | +170,076+42.4% | Added |
| HRT Financial LP | 467,190 | $1.93M | 0.00% | +467,190 | New |
| Readystate Asset Management LP | 463,228 | $1.91M | 0.11% | −177,096−27.7% | Reduced |
| Dimensional Fund Advisors LP | 361,996 | $1.49M | 0.00% | −21,591−5.6% | Reduced |
| UBS Group AG | 306,957 | $1.27M | 0.00% | −637,807−67.5% | Reduced |
| Bank of Montreal | 272,613 | $1.13M | 0.00% | +68,697+33.7% | Added |
| D. E. Shaw & Co., Inc. | 270,544 | $1.12M | 0.00% | −252,714−48.3% | Reduced |
| Two Sigma Investments, LP | 269,900 | $1.11M | 0.00% | +269,900 | New |
| Citadel Advisors LLC | 267,743 | $1.11M | 0.00% | −354,661−57.0% | Reduced |
| Goldman Sachs Group Inc | 252,457 | $1.04M | 0.00% | +97,207+62.6% | Added |
| CenterBook Partners LP | 233,509 | $964.4K | 0.05% | −165,336−41.5% | Reduced |
| ExodusPoint Capital Management, LP | 229,563 | $948.1K | 0.01% | +203,223+771.5% | Added |
| JPMorgan Chase & Co | 230,817 | $914.0K | 0.00% | +230,817 | New |
| XTX Topco Ltd | 182,347 | $753.1K | 0.01% | +38,643+26.9% | Added |
| SIG North Trading, ULC | 171,817 | $709.6K | 0.14% | +69,900+68.6% | Added |
| Barclays PLC | 171,556 | $708.5K | 0.00% | +125,310+271.0% | Added |
| Quantbot Technologies LP | 157,928 | $652.2K | 0.03% | +30,081+23.5% | Added |
| Simplex Trading, LLC | 154,905 | $639.8K | 0.02% | +80,777+109.0% | Added |
| Royal Bank of Canada | 146,821 | $607.0K | 0.00% | +1,225+0.8% | Added |
| Quinn Opportunity Partners LLC | 142,336 | $587.8K | 0.03% | 00.0% | Unchanged |
| Voleon Capital Management LP | 130,919 | $540.7K | 0.01% | +90,833+226.6% | Added |
| Renaissance Technologies LLC | 117,276 | $484.4K | 0.00% | +117,276 | New |
| Summit Financial, LLC | 110,333 | $455.7K | 0.01% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 99,107 | $409.3K | 0.00% | +99,107 | New |
| Mackenzie Financial Corp | 98,773 | $407.5K | 0.00% | +3,997+4.2% | Added |
| AYAL Capital Advisors Ltd | 95,000 | $392.4K | 0.20% | +95,000 | New |
| Aristeia Capital LLC | 91,423 | $377.6K | 0.01% | −28,837−24.0% | Reduced |
| Boston Partners | 87,067 | $359.6K | 0.00% | +18,469+26.9% | Added |
| Group One Trading, L.P. | 85,656 | $353.8K | 0.01% | −17,531−17.0% | Reduced |
| Point72 Asset Management, L.P. | 73,916 | $307.1K | 0.00% | +73,916 | New |
| PDT Partners, LLC | 70,304 | $290.4K | 0.02% | −8,500−10.8% | Reduced |
| BNP Paribas Arbitrage, SA | 65,417 | $270.2K | 0.00% | −48,684−42.7% | Reduced |
| FNY Investment Advisers, LLC | 65,288 | $269.0K | 0.12% | −20,705−24.1% | Reduced |
| Squarepoint Ops LLC | 64,174 | $265.0K | 0.00% | +64,174 | New |
| Geode Capital Management, LLC | 63,813 | $263.5K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 62,393 | $257.7K | 0.00% | −459,964−88.1% | Reduced |
| LPL Financial LLC | 59,794 | $246.9K | 0.00% | −2,400−3.9% | Reduced |
| Invesco Ltd. | 59,150 | $244.3K | 0.00% | −7,563−11.3% | Reduced |
| Terril Brothers, Inc. | 58,000 | $239.5K | 0.07% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 54,983 | $227.0K | 0.01% | +12,494+29.4% | Added |
| HSBC Holdings PLC | 54,379 | $222.4K | 0.00% | +15,625+40.3% | Added |
| Aquatic Capital Management LLC | 47,257 | $195.2K | 0.01% | +38,448+436.5% | Added |
| Boothbay Fund Management, LLC | 45,070 | $186.1K | 0.00% | +45,070 | New |
| American Century Companies Inc | 41,076 | $169.5K | 0.00% | −28,096−40.6% | Reduced |
| Phoenix Holdings Ltd. | 35,714 | $147.5K | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 35,367 | $146.1K | 0.02% | +25,093+244.2% | Added |
| FIL Ltd | 30,961 | $127.8K | 0.00% | +10,391+50.5% | Added |
| Claret Asset Management Corp | 30,375 | $125.0K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 28,299 | $116.9K | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 26,803 | $110.7K | 0.00% | −1,221,999−97.9% | Reduced |
| Toronto Dominion Bank | 26,178 | $107.8K | 0.00% | +16,118+160.2% | Added |
| CIBC World Markets Inc. | 25,551 | $105.5K | 0.00% | −6,874−21.2% | Reduced |
| Net Worth Advisory Group | 22,388 | $92.5K | 0.02% | −1,255−5.3% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 21,773 | $89.9K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 18,360 | $75.0K | 0.00% | +500+2.8% | Added |
| Caption Management, LLC | 17,299 | $71.4K | 0.00% | +9,843+132.0% | Added |
| Susquehanna International Group, LLP | 15,390 | $63.6K | 0.00% | −48,990−76.1% | Reduced |
| CI Private Wealth, LLC | 15,000 | $62.0K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 14,800 | $60.0K | 0.00% | −4,600−23.7% | Reduced |
| Scientech Research LLC | 13,748 | $56.8K | 0.05% | +13,748 | New |
| Schonfeld Strategic Advisors LLC | 13,188 | $54.5K | 0.00% | +13,188 | New |
| Balyasny Asset Management LLC | 11,517 | $47.6K | 0.00% | +11,517 | New |
| EJF Capital LLC | 11,000 | $45.4K | 0.03% | 00.0% | Unchanged |
| Victory Capital Management Inc | 10,807 | $44.6K | 0.00% | −272−2.5% | Reduced |
| Element Pointe Advisors, LLC | 10,000 | $41.3K | 0.01% | 00.0% | Unchanged |
| Aviso Financial Inc. | 6,033 | $24.9K | 0.00% | −526−8.0% | Reduced |
| TD Waterhouse Canada Inc. | 4,700 | $19.1K | 0.00% | +4,700 | New |
| Tower Research Capital LLC (TRC) | 3,855 | $15.9K | 0.00% | +1,518+65.0% | Added |
| Citigroup Inc | 3,236 | $13.3K | 0.00% | −3,884−54.6% | Reduced |
| Assetmark, Inc | 2,500 | $10.3K | 0.00% | +2,500 | New |
| Advisor Group Holdings, Inc. | 1,683 | $6.95K | 0.00% | +1,516+907.8% | Added |
| Ulland Investment Advisors, LLC | 1,000 | $4.00K | 0.00% | 00.0% | Unchanged |
| Arlington Trust Co LLC | 100 | $413 | 0.00% | 00.0% | Unchanged |
| Basepoint Wealth LLC | 51 | $212 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 51 | $211 | 0.00% | −50−49.5% | Reduced |
| Goldentree Asset Management LP | 0 | $0 | 0.00% | −2,493,548−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −2,208,646−100.0% | Sold out |