NasdaqMaterialsSteel Works, Blast Furnaces & Rolling Mills (Coke Ovens)SAULT STE. MARIE, Ontario, Canada

Algoma Steel Group Inc. ASTL

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Estimated market cap $571.89M104.93M shares, shares as of Dec 31, 2025CIK 1860805

Insider trades, 12 mo

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No open-market trades

Congress trades, 24 mo

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No disclosed trades

13F holders, Q3 2026

17 added · 18 trimmed

13F holders

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Lobbying, 12 mo

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No lobbying filings

Federal contracts, 12 mo

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None matched

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Latest 10-Q

What changed in Algoma Steel Group Inc.'s latest quarterly report, compared with the one before.

We have not read a recent 10-Q for this company yet.

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No recent insider purchases or sales for this company.

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

49.61M shares

58 funds report ASTL. Values checked against market prices.

Funds own 69% of shares (Q2 2026)

94 funds hold the stock.

Q3 2026: 47% · 5,560 of ~8,900 funds reported so far

Q2 202577%
Q3 202574%
Q4 202579%
Q1 202669%
Q2 202669%
Q3 2026 (so far)47%

Q3 2026. 8 new, 17 added to, 18 trimmed, 45 exited since Q2 2026.

Top 13F holders
#
1	Mmcap International Inc. SPC 13F ↗	13.47M	$56.2M	+22.9%
2	Donald Smith & Co., Inc. 13F ↗	5.25M	$21.9M	-0.6%
3	BlackRock, Inc. 13F ↗	4.16M	$17.3M	+0.3%
4	Scheer, Rowlett & Associates Investment Management Ltd. 13F ↗	3.83M	$16.0M	-0.5%
5	Invesco Ltd. 13F ↗	3.26M	$13.6M	+7645.3%
6	Brightline Capital Management, LLC 13F ↗	2.80M	$11.7M	+68.7%
7	Morgan Stanley 13F ↗	2.58M	$10.8M	-12.7%
8	Aegis Financial Corp 13F ↗	1.79M	$7.4M	unchanged
9	CDC Financial, Inc. 13F ↗	1.71M	$7.1M	-2.3%
10	Littlejohn & Co LLC 13F ↗	1.52M	$6.3M	unchanged

Download CSV Every fund that holds ASTL, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What Algoma Steel Group Inc. and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What Algoma Steel Group Inc. and its lobbying firms report each quarter.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q4 2021	68	—	61.97M	$644.8M
Q1 2022	88	+20	94.52M	$1.1B
Q2 2022	119	+31	106.76M	$976.7M
Q3 2022	114	-5	69.13M	$446.1M
Q4 2022	119	+5	76.43M	$484.8M
Q1 2023	114	-5	66.45M	$537.0M
Q2 2023	117	+3	67.00M	$476.4M
Q3 2023	110	-7	70.85M	$482.6M
Q4 2023	120	+10	72.17M	$724.2M
Q1 2024	108	-12	75.55M	$641.6M
Q2 2024	118	+10	71.94M	$509.9M
Q3 2024	133	+15	78.63M	$799.5M
Q4 2024	135	+2	82.04M	$802.4M
Q1 2025	130	-5	77.33M	$454.3M
Q2 2025	127	-3	80.34M	$553.7M
Q3 2025	118	-9	77.25M	$274.9M
Q4 2025	109	-9	83.19M	$346.4M
Q1 2026	98	-11	71.97M	$297.1M
Q2 2026	95	-3	72.12M	$291.8M
Q3 2026	58	-37	49.61M	$207.0M

Each point is a quarter-end, from Q4 2021 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (015658107). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q4 2021) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakes9 in 12 mo 8-K eventsNone in 90 days Patents1 patent granted Short interestFINRA · updated Oct 15 Planned insider salesNone in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record IPO history1 registration Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: Algoma Steel Group Inc.
Address: 105 WEST STREET, SAULT STE. MARIE, Ontario, Canada P6A 7B4
Phone: 705-945-2351
Fiscal year ends: Mar 31
Filer category: Non-accelerated filer
Incorporated in: British Columbia, Canada
Listed as: ASTL (Nasdaq)
Former names: 1295908 B.C. LTD. (until 2021)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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$5.45−$0.16 (−2.85%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $4.03 · High $5.81Nov 13, 2026

Aug 13, 2026Low $3.99 · High $5.81Nov 13, 2026

Nov 13, 2025Low $3.28 · High $5.81Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.