Algoma Steel Group Inc. - Common Shares, no par value (ASTL)

Historical Holders from Q4 2021 to Q3 2025

Symbol
ASTL on Nasdaq
CUSIP
015658107
Type / Class
Equity / Common Shares, no par value
Shares outstanding
105M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
77.2M
Holdings value
$275M
% of all portfolios
0.003%
Grand Portfolio weight change
0%
Number of holders
116
Number of buys
59
Number of sells
-64
Average Value change %
0%
Average buys %
+0.001%
Average sells %
-0.001%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Algoma Steel Group Inc. - Common Shares, no par value (ASTL)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Maple Rock Capital Partners Inc. 13.3% +34% $49.7M $12.7M 14M +34.2% Maple Rock Capital Partners Inc. Oct 31, 2025
MMCAP International Inc. SPC 10% +28.8% $44.8M $10.4M 10.5M +30.4% MMCAP International Inc. SPC Nov 18, 2025
DONALD SMITH & CO., INC. 5.7% -1.67% $21.1M -$367K 5.94M -1.71% DONALD SMITH & CO., INC. Sep 30, 2025
Stoney Lonesome HF LP 5.4% +4% $40.9M $2.83M 5.86M +7.43% COGHILL CLINT D Jun 30, 2025
BlackRock, Inc. 3.7% $19.4M 3.84M BlackRock, Inc. Mar 31, 2025
Zekelman Industries, Inc. 3.08% $16.4M 3.23M Zekelman Industries, Inc. Sep 10, 2025

Institutional Holders of Algoma Steel Group Inc. - Common Shares, no par value (ASTL)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 77.2M $275M -$36.4M $3.56 116
2025 Q2 80.2M $553M +$28.2M $6.89 127
2025 Q1 76.9M $426M -$41.9M $5.42 127
2024 Q4 81.4M $796M +$29.9M $9.78 133
2024 Q3 78M $793M +$47.3M $10.23 132
2024 Q2 66.4M $462M +$51.5K $6.96 114
2024 Q1 71.3M $605M -$11.2M $8.49 110
2023 Q4 71M $712M +$37.4M $10.03 116
2023 Q3 67.8M $461M +$7.24M $6.80 108
2023 Q2 66.6M $473M +$2.56M $7.10 114
2023 Q1 65.8M $531M -$41.5M $8.08 112
2022 Q4 73.6M $467M -$669K $6.34 115
2022 Q3 65.8M $424M -$258M $6.44 112
2022 Q2 103M $923M +$70.8M $8.98 118
2022 Q1 93.8M $1.05B +$347M $11.25 86
2021 Q4 61.7M $642M +$642M $10.81 66