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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, Q2 2025

Institutional positions in Algoma Steel Group Inc. as of Jun 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
127
−3 vs. Q1 2025
Shares held
80.2M
+2.89M (+3.7%) vs. Q1 2025
Total value
$552.9M
+$126.8M (+29.8%) vs. Q1 2025
New holders
26
33 more added
Sold out
29
38 more reduced

Compare with Q1 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.

Institutional holdersQ2 2025: 127 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 heldQ2 2025: $552.9M
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, Q2 2025

Shares, value and share of portfolio for each institution holding Algoma Steel Group Inc.; share changes are against Q1 2025.

Institutions holding ASTL in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
CI Private Wealth, LLC15,000$103.3K0.00%00.0%Unchanged
Pictet Asset Management Holding SA13,901$95.9K0.00%00.0%Unchanged
HSBC Holdings PLC12,655$87.2K0.00%+12,655New
Alliancebernstein L.P.12,180$83.9K0.00%00.0%Unchanged
EJF Capital LLC11,000$75.8K0.06%00.0%Unchanged
Victory Capital Management Inc10,770$74.2K0.00%−696−6.1%Reduced
Clayton Partners LLC10,715$73.8K0.06%00.0%Unchanged
Quadrature Capital Ltd10,570$72.8K0.00%−3,524−25.0%Reduced
Two Sigma Advisers, LP10,400$71.7K0.00%+10,400New
Toronto Dominion Bank10,000$69.0K0.00%00.0%Unchanged
Wells Fargo & Company9,530$65.7K0.00%+7,155+301.3%Added
PEAK6 LLC8,901$61.3K0.00%−11,210−55.7%Reduced
Tower Research Capital LLC (TRC)7,391$50.9K0.00%−727−9.0%Reduced
Citigroup Inc7,267$50.1K0.00%+3,515+93.7%Added
Deutsche Bank AG6,626$45.7K0.00%00.0%Unchanged
Aviso Financial Inc.6,338$43.8K0.00%+750+13.4%Added
Raymond James Financial Inc4,601$31.7K0.00%+4,601New
FNY Investment Advisers, LLC4,530$31.0K0.01%−2,500−35.6%Reduced
Shell Asset Management Co4,193$29.0K0.00%00.0%Unchanged
Acadian Asset Management LLC3,000$20.0K0.00%+3,000New
BNP Paribas Arbitrage, SA1,194$8.23K0.00%−55,103−97.9%Reduced
TD Waterhouse Canada Inc.1,045$7.21K0.00%00.0%Unchanged
WealthCollab, LLC546$3.76K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.167$1.15K0.00%+167New
Arlington Trust Co LLC100$6890.00%00.0%Unchanged
SBI Securities Co., Ltd.50$3450.00%−10−16.7%Reduced
Fifth Third Bancorp5$340.00%+5New
Woodline Partners LP0$00.00%−1,240,894−100.0%Sold out
Thomist Capital Management, LP0$00.00%−737,877−100.0%Sold out
Walleye Capital LLC0$00.00%−476,516−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−436,232−100.0%Sold out
CIBC Asset Management Inc0$00.00%−120,021−100.0%Sold out
Prescott Group Capital Management, L.L.C.0$00.00%−120,000−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−107,700−100.0%Sold out
Wolverine Trading, LLC0$00.00%−99,460−100.0%Sold out
OnyxPoint Global Management LP0$00.00%−72,289−100.0%Sold out
Manufacturers Life Insurance Company, The0$00.00%−71,793−100.0%Sold out
Marex Group plc0$00.00%−72,167−100.0%Sold out
Weiss Asset Management LP0$00.00%−65,000−100.0%Sold out
Man Group plc0$00.00%−64,995−100.0%Sold out
Centiva Capital, LP0$00.00%−57,287−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−54,269−100.0%Sold out
British Columbia Investment Management Corp0$00.00%−53,789−100.0%Sold out
PCJ Investment Counsel Ltd.0$00.00%−50,080−100.0%Sold out
Grantham, Mayo, Van Otterloo & Co. LLC0$00.00%−48,684−100.0%Sold out
Trexquant Investment LP0$00.00%−43,076−100.0%Sold out
XTX Topco Ltd0$00.00%−33,357−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−29,063−100.0%Sold out
Jump Financial, LLC0$00.00%−18,778−100.0%Sold out
Aigen Investment Management, LP0$00.00%−12,678−100.0%Sold out
Two Sigma Investments, LP0$00.00%−18,213−100.0%Sold out
Alberta Investment Management Corp0$00.00%−16,200−100.0%Sold out
Point72 Hong Kong Ltd0$00.00%−4,000−100.0%Sold out
Walleye Trading LLC0$00.00%−3,879−100.0%Sold out
Skopos Labs, Inc.0$00.00%−274−100.0%Sold out
Boston Private Wealth LLC0$00.00%−57−100.0%Sold out