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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 2023

Institutional positions in Algoma Steel Group Inc. as of Sep 30, 2023. 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
111
−5 vs. Q2 2023
Shares held
68.0M
+1.08M (+1.6%) vs. Q2 2023
Total value
$463.5M
−$12.6M (−2.6%) vs. Q2 2023
New holders
12
32 more added
Sold out
17
40 more reduced

1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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.

Institutional holdersQ3 2023: 111 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 68 institutionsQ1 2022: 88 institutionsQ2 2022: 119 institutionsQ3 2022: 114 institutionsQ4 2022: 119 institutionsQ1 2023: 115 institutionsQ2 2023: 117 institutionsQ3 2023: 111 institutionsQ4 2023: 120 institutionsQ1 2024: 108 institutionsQ2 2024: 118 institutionsQ3 2024: 133 institutionsQ4 2024: 135 institutionsQ1 2025: 130 institutionsQ2 2025: 127 institutionsQ3 2025: 118 institutionsQ4 2025: 109 institutionsQ1 2026: 98 institutionsQ2 2026: 95 institutions
Value heldQ3 2023: $463.5M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $644.8MQ1 2022: $1.05BQ2 2022: $950.9MQ3 2022: $427.9MQ4 2022: $467.0MQ1 2023: $534.2MQ2 2023: $476.1MQ3 2023: $463.5MQ4 2023: $716.4MQ1 2024: $605.3MQ2 2024: $507.8MQ3 2024: $795.8MQ4 2024: $798.6MQ1 2025: $426.1MQ2 2025: $552.9MQ3 2025: $274.8MQ4 2025: $346.2MQ1 2026: $297.1MQ2 2026: $291.8M
Institutions holding ASTL and their total value by quarter
QuarterHoldersValue
Q2 202695$291.8M
Q1 202698$297.1M
Q4 2025109$346.2M
Q3 2025118$274.8M
Q2 2025127$552.9M
Q1 2025130$426.1M
Q4 2024135$798.6M
Q3 2024133$795.8M
Q2 2024118$507.8M
Q1 2024108$605.3M
Q4 2023120$716.4M
Q3 2023111$463.5M
Q2 2023117$476.1M
Q1 2023115$534.2M
Q4 2022119$467.0M
Q3 2022114$427.9M
Q2 2022119$950.9M
Q1 202288$1.05B
Q4 202168$644.8M
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding Algoma Steel Group Inc.; share changes are against Q2 2023.

Institutions holding ASTL in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Towle & Co2,333,217$15.9M2.17%−283,843−10.8%Reduced
TCW Group Inc2,413,227$16.4M0.21%+145,600+6.4%Added
Goldentree Asset Management LP2,592,185$17.6M1.86%00.0%Unchanged
Millennium Management LLC2,682,053$18.2M0.02%+1,516,785+130.2%Added
Invesco Senior Secured Management Inc2,806,214$19.1M19.71%00.0%Unchanged
Bain Capital Credit, LP2,860,447$19.5M3.16%−28,272−1.0%Reduced
Thomist Capital Management, LP3,185,914$21.7M14.38%+513,613+19.2%Added
Contrarian Capital Management, L.L.C.4,464,223$30.4M8.14%−798,870−15.2%Reduced
Weiss Multi-Strategy Advisers LLC4,553,770$31.0M0.75%+1,610,606+54.7%Added
Maple Rock Capital Partners Inc.6,092,091$41.4M4.82%00.0%Unchanged
Donald Smith & Co., Inc.7,663,949$52.1M1.79%+173,368+2.3%Added
Crestline Management, LP0$00.00%−582,392−100.0%Sold out
Marshall Wace, LLP0$00.00%−235,962−100.0%Sold out
Strategic Global Advisors, LLC0$00.00%−211,700−100.0%Sold out
Ergoteles LLC0$00.00%−52,061−100.0%Sold out
Lynwood Capital Management Inc.0$00.00%−50,000−100.0%Sold out
Franklin Resources Inc0$00.00%−46,189−100.0%Sold out
SEI Investments Co0$00.00%−29,559−100.0%Sold out
State of Wyoming0$00.00%−26,312−100.0%Sold out
Privium Fund Management (UK) Ltd0$00.00%−19,074−100.0%Sold out
Keebeck Alpha, LP0$00.00%−12,518−100.0%Sold out
Walleye Trading LLC0$00.00%−12,108−100.0%Sold out
Quantamental Technologies LLC0$00.00%−11,406−100.0%Sold out
Wexford Capital LP0$00.00%−10,500−100.0%Sold out
Cobalt Capital Management, Inc.0$00.00%−10,000−100.0%Sold out
CVA Family Office, LLC0$00.00%−2,000−100.0%Sold out
Pinnacle Holdings, LLC0$00.00%−1,816−100.0%Sold out
Wolverine Asset Management LLC0$00.00%−95−100.0%Sold out
Pictet Asset Management SA––––Not filed