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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
Fifth Third Bancorp5$340.00%+5New
SBI Securities Co., Ltd.50$3450.00%−10−16.7%Reduced
Arlington Trust Co LLC100$6890.00%00.0%Unchanged
Advisor Group Holdings, Inc.167$1.15K0.00%+167New
WealthCollab, LLC546$3.76K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.1,045$7.21K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA1,194$8.23K0.00%−55,103−97.9%Reduced
Acadian Asset Management LLC3,000$20.0K0.00%+3,000New
Shell Asset Management Co4,193$29.0K0.00%00.0%Unchanged
FNY Investment Advisers, LLC4,530$31.0K0.01%−2,500−35.6%Reduced
Raymond James Financial Inc4,601$31.7K0.00%+4,601New
Aviso Financial Inc.6,338$43.8K0.00%+750+13.4%Added
Deutsche Bank AG6,626$45.7K0.00%00.0%Unchanged
Citigroup Inc7,267$50.1K0.00%+3,515+93.7%Added
Tower Research Capital LLC (TRC)7,391$50.9K0.00%−727−9.0%Reduced
PEAK6 LLC8,901$61.3K0.00%−11,210−55.7%Reduced
Wells Fargo & Company9,530$65.7K0.00%+7,155+301.3%Added
Toronto Dominion Bank10,000$69.0K0.00%00.0%Unchanged
Two Sigma Advisers, LP10,400$71.7K0.00%+10,400New
Quadrature Capital Ltd10,570$72.8K0.00%−3,524−25.0%Reduced
Clayton Partners LLC10,715$73.8K0.06%00.0%Unchanged
Victory Capital Management Inc10,770$74.2K0.00%−696−6.1%Reduced
EJF Capital LLC11,000$75.8K0.06%00.0%Unchanged
Alliancebernstein L.P.12,180$83.9K0.00%00.0%Unchanged
HSBC Holdings PLC12,655$87.2K0.00%+12,655New
Pictet Asset Management Holding SA13,901$95.9K0.00%00.0%Unchanged
CI Private Wealth, LLC15,000$103.3K0.00%00.0%Unchanged
Neuberger Berman Group LLC15,296$105.5K0.00%+15,296New
Graham Capital Management, L.P.17,952$123.7K0.00%+17,952New
Barclays PLC18,400$126.8K0.00%−5,237−22.2%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)19,329$133.2K0.00%00.0%Unchanged
National Bank of Canada21,144$141.7K0.00%−19,573−48.1%Reduced
Engineers Gate Manager LP21,244$146.4K0.00%+21,244New
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management21,773$150.0K0.00%00.0%Unchanged
Campbell & CO Investment Adviser LLC24,435$168.4K0.01%+4,346+21.6%Added
GWM Advisors LLC24,899$171.6K0.00%+373+1.5%Added
Dynamic Technology Lab Private Ltd24,940$172.0K0.02%+24,940New
Net Worth Advisory Group25,960$178.9K0.04%+11,184+75.7%Added
DekaBank Deutsche Girozentrale21,188$180.0K0.00%00.0%Unchanged
JPMorgan Chase & Co28,009$193.0K0.00%−323,362−92.0%Reduced
AMH Equity Ltd30,191$208.0K0.31%−239,812−88.8%Reduced
Claret Asset Management Corp30,375$209.0K0.03%00.0%Unchanged
Gamco Investors, Inc. Et Al31,125$214.5K0.00%+450+1.5%Added
Phoenix Holdings Ltd.35,714$246.1K0.00%00.0%Unchanged
American Century Companies Inc38,099$263.3K0.00%−105,038−73.4%Reduced
Y-Intercept (Hong Kong) Ltd42,190$290.7K0.01%−52,656−55.5%Reduced
PDT Partners, LLC44,172$304.3K0.02%+44,172New
Invesco Ltd.44,451$306.3K0.00%−5,232−10.5%Reduced
LPL Financial LLC45,626$314.4K0.00%−2,395−5.0%Reduced
Mackenzie Financial Corp48,277$333.8K0.00%+48,277New
Terril Brothers, Inc.49,500$341.1K0.13%+14,000+39.4%Added
Eisler Capital Management Ltd.50,000$344.3K0.01%+50,000New
Orion Resource Partners LP53,193$368.2K0.07%+53,193New
Susquehanna Advisors Group, Inc.56,400$388.6K0.02%+56,400New
Renaissance Technologies LLC57,400$395.5K0.00%−170,205−74.8%Reduced
Wealth Enhancement Advisory Services, LLC56,000$397.0K0.00%00.0%Unchanged
Public Employees Retirement System of Ohio59,115$408.1K0.00%+1,087+1.9%Added
Squarepoint Ops LLC61,696$425.1K0.00%−65,847−51.6%Reduced
UBS Asset Management Americas Inc65,689$452.6K0.00%−7,972−10.8%Reduced
Boston Partners67,990$468.4K0.00%−1,268−1.8%Reduced
Nuveen, LLC69,751$481.0K0.00%−234,983−77.1%Reduced
Vanguard Group Inc76,477$528.5K0.00%00.0%Unchanged
Quantbot Technologies LP83,169$573.0K0.01%+29,595+55.2%Added
Bank of Montreal87,657$606.1K0.00%−265,407−75.2%Reduced
Legal & General Group Plc88,583$610.9K0.00%+8,963+11.3%Added
Robotti Robert90,000$620.1K0.12%00.0%Unchanged
Van Eck Associates Corp96,092$662.0K0.00%+18,183+23.3%Added
CIBC World Markets Inc.99,345$684.5K0.00%−53,490−35.0%Reduced
Royal Bank of Canada103,860$716.0K0.00%+79,938+334.2%Added
Group One Trading, L.P.113,080$779.1K0.03%+113,080New
Geode Capital Management, LLC113,989$784.6K0.00%−470−0.4%Reduced
IMC-Chicago, LLC115,231$793.9K0.02%+115,231New
Susquehanna International Group, LLP115,258$794.1K0.00%+47,766+70.8%Added
Mutual Advisors, LLC146,802$914.6K0.02%00.0%Unchanged
Millennium Management LLC140,752$969.8K0.00%−668,141−82.6%Reduced
Adage Capital Partners GP, L.L.C.157,991$1.09M0.00%+157,991New
UBS Group AG169,337$1.17M0.00%+69,924+70.3%Added
Swiss National Bank171,507$1.18M0.00%−11,600−6.3%Reduced
Quinn Opportunity Partners LLC176,342$1.21M0.10%−20,000−10.2%Reduced
Caption Management, LLC188,663$1.30M0.12%+179,009+1,854.2%Added
Bank of America Corp196,364$1.35M0.00%−407,288−67.5%Reduced
Moore Capital Management, LP212,331$1.46M0.03%+212,331New
Wolf Hill Capital Management, LP213,712$1.47M0.12%00.0%Unchanged
SummitTX Capital, L.P.214,000$1.47M0.07%+214,000New
HITE Hedge Asset Management LLC214,556$1.48M0.08%+128,713+149.9%Added
Senvest Management, LLC275,089$1.90M0.06%00.0%Unchanged
CenterBook Partners LP287,590$1.98M0.11%+25,424+9.7%Added
Federation des caisses Desjardins du Quebec313,169$2.16M0.01%+310,169+10,339.0%Added
Citadel Advisors LLC320,902$2.21M0.00%+245,488+325.5%Added
Polar Asset Management Partners Inc.363,216$2.51M0.06%+363,216New
Ewing Morris & Co. Investment Partners Ltd.390,000$2.69M1.21%+180,000+85.7%Added
Charles Schwab Investment Management Inc391,431$2.70M0.00%−23,712−5.7%Reduced
Russell Investments Group, Ltd.398,037$2.74M0.00%−24,186−5.7%Reduced
Morgan Stanley405,201$2.79M0.00%−251,528−38.3%Reduced
Verition Fund Management LLC418,397$2.88M0.02%+418,397New
Dimensional Fund Advisors LP431,725$2.97M0.00%−44,042−9.3%Reduced
Empyrean Capital Partners, LP452,148$3.12M0.14%+452,148New
Goldman Sachs Group Inc479,999$3.31M0.00%+234,471+95.5%Added
Heartland Advisors Inc500,000$3.44M0.19%00.0%Unchanged
Readystate Asset Management LP565,225$3.89M0.16%+565,225New