ASTL · Nasdaq, Nasdaq · CIK 0001860805

Algoma Steel Group Inc.

Algoma Steel Group Inc.’s most recent SEC filing in our snapshot is a Form 25-NSE filed on Oct 19, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of CAD 2.1B and net income of -CAD 984.9M, according to its XBRL data on EDGAR. Its EDGAR record lists 0 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
CAD 2.1B
Net income, FY2025
-CAD 984.9M
Form 4 filings on record, past 12 months
0

Company overview

Legal name (as filed)
Algoma Steel Group Inc.
Tickers
ASTL, ASTLW
SEC Central Index Key (CIK)
0001860805
Business address
SAULT STE. MARIE, Ontario, Canada
State or country of incorporation
British Columbia, Canada
Fiscal year ends
March 31
SEC filer category
Non-accelerated filer
Position in SEC ticker list
#2922 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from Algoma Steel Group Inc.’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in CAD; the fiscal year is named for the calendar year in which it ends.

Revenue
CAD 1.8BFY2021CAD 3.8BFY2022CAD 2.8BFY2023CAD 2.8BFY2024CAD 2.1BFY2025
Net income
-CAD 76.1MFY2021CAD 857.7MFY2022CAD 298.5MFY2023CAD 105.2MFY2024-CAD 984.9MFY2025
ASTL annual results
ItemFY2021
ended Mar 31, 2021		FY2022
ended Mar 31, 2022		FY2023
ended Mar 31, 2023		FY2024
ended Mar 31, 2024		FY2025
ended Dec 31, 2025
RevenueCAD 1.8BCAD 3.8BCAD 2.8BCAD 2.8BCAD 2.1B
Net income-CAD 76.1MCAD 857.7MCAD 298.5MCAD 105.2M-CAD 984.9M
Diluted EPS-CAD 1.06CAD 7.75CAD 1.71CAD 0.70-CAD 9.06
Total assetsCAD 1.6BCAD 2.7BCAD 2.5BCAD 2.7BCAD 2.1B
Cash and equivalentsCAD 21.2MCAD 915.3MCAD 247.4MCAD 97.9MCAD 77.5M

XBRL tags used: revenue = Revenue; netIncome = ProfitLoss; assets = Assets; eps = DilutedEarningsLossPerShare; cash = Cash. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

ASTL latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Jun 17, 202220-FAnnual report of a foreign private issuer· period Mar 31, 2022Document · Index
Oct 16, 20266-KReport of a foreign private issuer· period Oct 15, 2026Document · Index
Mar 12, 202640-FAnnual report of certain Canadian issuers· period Dec 31, 2025Document · Index

Recent SEC filings

The 40 newest documents filed by or about Algoma Steel Group Inc., by form type:

6-K ×26SCHEDULE 13G/A ×7SCHEDULE 13G ×425-NSE ×140-F ×1SCHEDULE 13D/A ×1
ASTL recent filings
FiledFormWhat it isOriginal
Oct 19, 202625-NSE25-NSEDocument · Index
Oct 16, 20266-KReport of a foreign private issuer· period Oct 15, 2026Document · Index
Oct 2, 20266-KReport of a foreign private issuer· period Oct 1, 2026Document · Index
Sep 2, 20266-KReport of a foreign private issuer· period Sep 2, 2026Document · Index
Aug 18, 20266-KReport of a foreign private issuer· period Aug 17, 2026Document · Index
Aug 14, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Aug 11, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Jul 30, 20266-KReport of a foreign private issuer· period Jun 30, 2026Document · Index
Jul 17, 20266-KReport of a foreign private issuer· period Jul 16, 2026Document · Index
Jul 1, 20266-KReport of a foreign private issuer· period Jun 30, 2026Document · Index
Jun 24, 20266-KReport of a foreign private issuer· period Jun 23, 2026Document · Index
Jun 5, 20266-KReport of a foreign private issuer· period Jun 4, 2026Document · Index
May 22, 20266-KReport of a foreign private issuer· period May 22, 2026Document · Index
May 15, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
May 15, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
May 13, 20266-KReport of a foreign private issuer· period May 12, 2026Document · Index
May 13, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
May 1, 20266-KReport of a foreign private issuer· period Apr 30, 2026Document · Index
Apr 10, 20266-KReport of a foreign private issuer· period Apr 10, 2026Document · Index
Apr 7, 20266-KReport of a foreign private issuer· period Apr 7, 2026Document · Index
Apr 1, 20266-KReport of a foreign private issuer· period Mar 31, 2026Document · Index
Mar 12, 20266-KReport of a foreign private issuer· period Mar 11, 2026Document · Index
Mar 12, 202640-FAnnual report of certain Canadian issuers· period Dec 31, 2025Document · Index
Feb 27, 20266-KReport of a foreign private issuer· period Feb 26, 2026Document · Index
Feb 17, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Feb 12, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Jan 27, 20266-KReport of a foreign private issuer· period Jan 26, 2026Document · Index
Jan 9, 20266-KReport of a foreign private issuer· period Jan 8, 2026Document · Index
Dec 2, 20256-KReport of a foreign private issuer· period Dec 2, 2025Document · Index
Dec 1, 20256-KReport of a foreign private issuer· period Dec 1, 2025Document · Index
Nov 20, 2025SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Nov 17, 20256-KReport of a foreign private issuer· period Nov 17, 2025Document · Index
Nov 14, 2025SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Nov 12, 2025SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Nov 7, 2025SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Oct 30, 20256-KReport of a foreign private issuer· period Oct 29, 2025Document · Index
Oct 21, 20256-KReport of a foreign private issuer· period Oct 20, 2025Document · Index
Oct 2, 20256-KReport of a foreign private issuer· period Oct 1, 2025Document · Index
Sep 29, 20256-KReport of a foreign private issuer· period Sep 29, 2025Document · Index
Sep 23, 2025SCHEDULE 13D/AActive beneficial ownership report (over 5%)Document · Index

Insider filing activity

0 Form 4 filings appear in Algoma Steel Group Inc.’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001860805 and XBRL company facts. Algoma Steel Group Inc. on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.