Algoma Steel Group Inc.

Historical 13F Holders

Symbol: ASTL
CUSIP: 015658107
All holders as of: Q2 2026
Type: Equity
Class: COM

Reported Value, Excluding Options

Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 015658107 since 12/18/2024, newest first.

Filer	% of Class	Shares	Form	Filed
MMCAP International Inc. SPC 13G/A Amendment 8	10.4%	10,954,738	13G/A Amendment 8	8/14/2026 Event 6/30/2026
MMCAP International Inc. SPC	10.4%	10,954,738
MM Asset Management Inc.	10.4%	10,954,738
Donald Smith & Co., Inc. 13G	5.0%	5,277,631	13G	8/11/2026 Event 6/30/2026
Donald Smith & Co., Inc.	5.0%	5,277,631
DSCO Value Fund, L.P.	5.0%	5,277,631
MMCAP International Inc. SPC 13G/A Amendment 7	12.2%	12,845,622	13G/A Amendment 7	5/15/2026 Event 3/31/2026
MMCAP International Inc. SPC	12.2%	12,845,622
MM Asset Management Inc.	12.2%	12,845,622
Maple Rock Capital Partners Inc. 13G/A Amendment 2	15.1%	15,930,818	13G/A Amendment 2	5/15/2026 Event 3/31/2026
Maple Rock Capital Partners Inc.	15.1%	15,930,818
Xavier Majic	15.1%	15,930,818
Donald Smith & Co., Inc. 13G	5.8%	6,028,929	13G	5/13/2026 Event 3/31/2026
Donald Smith & Co., Inc.	5.8%	6,028,929
DSCO Value Fund, L.P.	5.8%	6,028,929
MMCAP International Inc. SPC 13G/A Amendment 6	10.9%	11,487,861	13G/A Amendment 6	2/17/2026 Event 12/31/2025
MMCAP International Inc. SPC	10.9%	11,487,861
MM Asset Management Inc.	10.9%	11,487,861
Donald Smith & Co., Inc. 13G	5.6%	5,861,631	13G	2/12/2026 Event 12/31/2025
Donald Smith & Co., Inc.	5.6%	5,861,631
DSCO Value Fund, L.P.	5.6%	5,861,631
MMCAP International Inc. SPC 13G/A Amendment 5	10.0%	10,532,553	13G/A Amendment 5	11/20/2025 Event 11/18/2025
MMCAP International Inc. SPC	10.0%	10,532,553
MM Asset Management Inc.	10.0%	10,532,553
MMCAP International Inc. SPC 13G/A Amendment 4	7.7%	8,078,828	13G/A Amendment 4	11/14/2025 Event 9/30/2025
MMCAP International Inc. SPC	7.7%	8,078,828
MM Asset Management Inc.	7.7%	8,078,828
Donald Smith & Co., Inc. 13G	5.7%	5,937,020	13G	11/12/2025 Event 9/30/2025
Donald Smith & Co., Inc.	5.7%	5,937,020
DSCO Value Fund, L.P.	5.7%	5,397,020
Maple Rock Capital Partners Inc. 13G/A Amendment 1	13.3%	13,993,930	13G/A Amendment 1	11/7/2025 Event 10/31/2025
Maple Rock Capital Partners Inc.	13.3%	13,993,930
Xavier Majic	13.3%	13,993,930
Zekelman Industries, Inc. 13D/A Amendment 1	3.1%	3,229,998	13D/A Amendment 1	9/23/2025 Event 9/10/2025
Zekelman Industries, Inc.	3.1%	3,229,998
Atlas Tube Canada ULC	3.1%	3,229,998
Maple Rock Capital Partners Inc. 13G	9.9%	10,430,818	13G	8/28/2025 Event 8/28/2025
Maple Rock Capital Partners Inc.	9.9%	10,430,818
Xavier Majic	9.9%	10,430,818
MMCAP International Inc. SPC 13G/A Amendment 3	6.9%	7,218,218	13G/A Amendment 3	8/14/2025 Event 6/30/2025
MMCAP International Inc. SPC	6.9%	7,218,218
MM Asset Management Inc.	6.9%	7,218,218
Stoney Lonesome HF LP 13G/A Amendment 1	5.4%	5,864,050	13G/A Amendment 1	8/14/2025 Event 6/30/2025
Stoney Lonesome HF LP	5.1%	5,467,258
Coghill Capital Management LLC	5.1%	5,467,258
Drake Helix Holdings, LLC	0.4%	381,522
CDC Financial, Inc.	5.4%	5,848,780
Coghill Clint D	5.4%	5,864,050
Maple Rock Capital Partners Inc. 13D/A Amendment 2	9.9%	10,430,818	13D/A Amendment 2	8/14/2025 Event 8/12/2025
Maple Rock Capital Partners Inc.	9.9%	10,430,818
Majic Xavier	9.9%	10,430,818
Donald Smith & Co., Inc. 13G	5.8%	6,040,168	13G	8/13/2025 Event 6/30/2025
Donald Smith & Co., Inc.	5.8%	6,040,168
DSCO Value Fund, L.P.	0%	6,040,168
MMCAP International Inc. SPC 13G/A Amendment 2	6.3%	6,641,417	13G/A Amendment 2	5/15/2025 Event 3/31/2025
MMCAP International Inc. SPC	6.3%	6,641,417
MM Asset Management Inc.	6.3%	6,641,417
Donald Smith & Co., Inc. 13G	7.7%	8,088,120	13G	5/13/2025 Event 3/31/2025
Donald Smith & Co., Inc.	7.7%	8,088,120
DSCO Value Fund, L.P.	7.7%	8,088,120
Maple Rock Capital Partners Inc. 13D/A Amendment 1	7.2%	7,552,617	13D/A Amendment 1	5/5/2025 Event 5/1/2025
Maple Rock Capital Partners Inc.	7.2%	7,552,617
Majic Xavier	7.2%	7,552,617
BlackRock, Inc. 13G/A Amendment 1	3.7%	3,835,939	13G/A Amendment 1	4/29/2025 Event 3/31/2025
Stoney Lonesome HF LP 13G	5.2%	5,458,549	13G	4/10/2025 Event 4/4/2025
Stoney Lonesome HF LP	5.2%	5,458,549
The Drake Helix Holdings, LLC	0.3%	366,522
Clint Coghill	0%	15,270
Donald Smith & Co., Inc. 13G	7.8%	8,067,603	13G	2/13/2025 Event 12/31/2024
Donald Smith & Co., Inc.	7.8%	8,067,603
DSCO Value Fund, L.P.	7.7%	8,067,603

13F Holders by Quarter

Period	Filings	Shares, Excl. Options	Value, Excl. Options	Options Value
2026 Q2	102	72.1 M	$292 M	$2.70 M
2026 Q1	111	72.0 M	$297 M	$6.42 M
2025 Q4	134	83.2 M	$346 M	$14.1 M
2025 Q3	139	77.2 M	$275 M	$9.33 M
2025 Q2	151	80.3 M	$554 M	$34.8 M
2025 Q1	151	77.3 M	$454 M	$9.00 M
2024 Q4	154	82.0 M	$802 M	$22.6 M
2024 Q3	150	78.6 M	$800 M	$21.5 M
2024 Q2	135	72.4 M	$513 M	$8.69 M
2024 Q1	128	75.6 M	$642 M	$11.6 M
2023 Q4	134	72.7 M	$729 M	$8.93 M
2023 Q3	123	70.9 M	$483 M	$13.3 M
2023 Q2	131	67.0 M	$477 M	$18.1 M
2023 Q1	126	66.2 M	$535 M	$14.3 M
2022 Q4	126	76.4 M	$485 M	$4.35 M
2022 Q3	121	69.1 M	$446 M	$4.97 M
2022 Q2	134	107 M	$977 M	$8.71 M
2022 Q1	91	94.5 M	$1.06 B	$0
2021 Q4	69	62.0 M	$645 M	$0