Company · Ownership research

Algoma Steel Group Inc. ASTL

CIK 0001860805 · CUSIP 015658107

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 015658107 (ASTL), not CUSIP 015658907 (ASTL), CUSIP 015658957 (ASTL), CUSIP 015658958 (ASTL), and does not merge CUSIPs.

This page lists the top 20 of 109 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Maple Rock Capital Partners Inc. CIK 1658363 · View history	$59.17M 14,430,818 shares	1.95%	+4.00M(+38.30%)Added	SEC filing ↗ Feb 17, 2026	▾
02	MMCAP International Inc. SPC CIK 1304857 · View history	$47.11M 11,487,861 shares	4.71%	+3.41M(+42.20%)Added	SEC filing ↗ Feb 9, 2026	▾
03	BlackRock, Inc. CIK 2012383 · View history	$34.86M 8,501,903 shares	0.00%	+1.17M(+15.90%)Added	SEC filing ↗ Feb 12, 2026	▾
04	DONALD SMITH & CO., INC. CIK 814375 · View history	$24.03M 5,861,631 shares	0.45%	-75.39K(-1.30%)Reduced	SEC filing ↗ Feb 11, 2026	▾
05	INVESCO SENIOR SECURED MANAGEMENT INC /ADV CIK 870481 · View history	$18.27M 3,233,117 shares	44.65%	0(0.00%)Unchanged	SEC filing ↗ Feb 13, 2026	▾
06	LITTLEJOHN & CO LLC CIK 1042537 · View history	$14.13M 3,446,503 shares	7.36%	+752.62K(+27.90%)Added	SEC filing ↗ Feb 11, 2026	▾
07	Scheer, Rowlett & Associates Investment Management Ltd. CIK 1426327 · View history	$13.73M 3,336,525 shares	0.94%	-492.40K(-12.90%)Reduced	SEC filing ↗ Feb 10, 2026	▾
08	GOLDENTREE ASSET MANAGEMENT LP CIK 1278951 · View history	$10.22M 2,493,548 shares	0.55%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
09	Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history	$9.32M 2,264,863 shares	0.02%	+2.26MNew	SEC filing ↗ Feb 10, 2026	▾
10	FMR LLC CIK 315066 · View history	$9.06M 2,208,646 shares	0.00%	-6.00K(-0.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
11	AEGIS FINANCIAL CORP CIK 1140753 · View history	$7.32M 1,786,122 shares	1.75%	0(0.00%)Unchanged	SEC filing ↗ Feb 12, 2026	▾
12	TD Asset Management Inc CIK 1056053 · View history	$6.96M 1,687,420 shares	0.01%	+1.57M(+1,351.70%)Added	SEC filing ↗ Feb 10, 2026	▾
13	CDC Financial, Inc. CIK 2077836 · View history	$6.48M 1,580,749 shares	5.69%	—	SEC filing ↗ Feb 13, 2026	▾
14	LM Asset Management Inc. CIK 2057190 · View history	$6.03M 1,470,000 shares	4.82%	+320.00K(+27.80%)Added	SEC filing ↗ Feb 13, 2026	▾
15	Verition Fund Management LLC CIK 1454027 · View history	$5.12M 1,248,802 shares	0.03%	+1.25MNew	SEC filing ↗ Feb 13, 2026	▾
16	Solas Capital Management, LLC CIK 1604867 · View history	$4.38M 1,069,351 shares	2.49%	-21.90K(-2.00%)Reduced	SEC filing ↗ Feb 17, 2026	▾
17	MORGAN STANLEY CIK 895421 · Amended · View history	$4.27M 1,040,539 shares	0.00%	-251.56K(-19.50%)Reduced	SEC filing ↗ May 27, 2026	▾
18	Quadrature Capital Ltd CIK 1651424 · View history	$4.20M 1,018,100 shares	0.04%	-511.00K(-33.40%)Reduced	SEC filing ↗ Feb 17, 2026	▾
19	UBS Group AG CIK 1610520 · View history	$3.87M 944,764 shares	0.00%	+371.29K(+64.70%)Added	SEC filing ↗ Jan 29, 2026	▾
20	Bracebridge Capital, LLC CIK 1426486 · View history	$3.79M 924,931 shares	1.38%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾

Showing 20 / 109 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

109

Cancelled or null records excluded

Disclosed shares

83,137,392

Not deduplicated across managers

Disclosed value

$346.21M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Algoma Steel Group Inc. · Q4 2025

Explore all 109 reporting institutions.

This page includes 20 of 109 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.