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

CUSIP: 015658107

Q1 2026 13F Holders as of 31 Mar 2026

Type / Class
Equity / Common Shares, no par value
Shares outstanding
105,502,106
Total 13F shares
71,941,294
Share change
-7,864,810
Total reported value
$297,005,073
Put/Call ratio
119%
Price per share
$4.13
Number of holders
97
Value change
-$32,315,604
Number of buys
48
Number of sells
54

Quarterly Holders Quick Answers

What is CUSIP 015658107?
CUSIP 015658107 identifies ASTL - Algoma Steel Group Inc. - Common Shares, no par value in SEC institutional holdings data.

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Top shareholders of ASTL - Algoma Steel Group Inc. - Common Shares, no par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
Maple Rock Capital Partners Inc.
13D/G 13F
Company
15%
15,930,818
$75,034,153 +$9,122,742 31 Mar 2026
MMCAP International Inc. SPC
13D/G 13F
Company
12%
12,845,622
$60,502,880 +$6,395,054 31 Mar 2026
Stoney Lonesome HF LP
13D/G
COGHILL CLINT D
5.4%
5,864,050
$40,931,069 +$2,830,397 30 Jun 2025
BlackRock, Inc.
13F 13D/G
Company
3.7%
from 13D/G
8,501,903
$34,857,801 31 Dec 2025
DONALD SMITH & CO., INC.
13D/G 13F
Company
5.8%
6,028,929
$28,396,256 +$787,974 31 Mar 2026
INVESCO SENIOR SECURED MANAGEMENT INC /ADV
13F
Company
3.1%
3,233,117
$18,267,111 31 Dec 2025
13F
Zekelman Industries, Inc.
13D/G
3.1%
3,229,998
$16,408,390 $0 10 Sep 2025
LITTLEJOHN & CO LLC
13F
Company
3.3%
3,446,503
$14,130,662 31 Dec 2025
13F
Scheer, Rowlett & Associates Investment Management Ltd.
13F
Company
3.2%
3,336,525
$13,734,837 31 Dec 2025
13F
CDC Financial, Inc.
13F
Company
mixed-class rows
5,733,445
mixed-class rows
$12,205,548 31 Dec 2025
13F
GOLDENTREE ASSET MANAGEMENT LP
13F
Company
2.4%
2,493,548
$10,223,547 31 Dec 2025
13F
Connor, Clark & Lunn Investment Management Ltd.
13F
Company
2.1%
2,264,863
$9,323,330 31 Dec 2025
13F
FMR LLC
13F
Company
2.1%
2,208,646
$9,055,449 31 Dec 2025
13F
AEGIS FINANCIAL CORP
13F
Company
1.7%
1,786,122
$7,323,100 31 Dec 2025
13F
TD ASSET MANAGEMENT INC
13F
Company
1.6%
1,687,420
$6,955,260 31 Dec 2025
13F
LM Asset Management Inc.
13F
Company
1.4%
1,470,000
$6,027,000 31 Dec 2025
13F
Verition Fund Management LLC
13F
Company
1.2%
1,248,802
$5,120,088 31 Dec 2025
13F
Solas Capital Management, LLC
13F
Company
1%
1,069,351
$4,384,339 31 Dec 2025
13F
MORGAN STANLEY
13F
Company
0.99%
1,040,539
$4,266,210 31 Dec 2025
13F
Quadrature Capital Ltd
13F
Company
0.97%
1,018,100
$4,195,288 31 Dec 2025
13F
UBS Group AG
13F
Company
mixed-class rows
945,984
mixed-class rows
$3,873,625 31 Dec 2025
13F
Bracebridge Capital, LLC
13F
Company
0.88%
924,931
$3,792,217 31 Dec 2025
13F
JB CAPITAL PARTNERS LP
13F
Company
0.83%
872,277
$3,576,336 31 Dec 2025
13F
Bain Capital Credit, LP
13F
Company
0.78%
825,777
$3,385,687 31 Dec 2025
13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
0.67%
702,734
$2,896,551 31 Dec 2025
13F
JANE STREET GROUP, LLC
13F
Company
mixed-class rows
805,073
mixed-class rows
$2,885,697 31 Dec 2025
13F
TCW GROUP INC
13F
Company
0.64%
672,678
$2,757,980 31 Dec 2025
13F
READYSTATE ASSET MANAGEMENT LP
13F
Company
0.61%
640,324
$2,625,328 31 Dec 2025
13F
Ewing Morris & Co. Investment Partners Ltd.
13F
Company
0.58%
612,500
$2,555,570 31 Dec 2025
13F
CITADEL ADVISORS LLC
13F
Company
0.59%
622,404
$2,551,856 31 Dec 2025
13F
MILLENNIUM MANAGEMENT LLC
13F
Company
0.57%
596,960
$2,452,765 31 Dec 2025
13F
Walleye Capital LLC
13F
Company
0.51%
537,234
$2,202,659 31 Dec 2025
13F
D. E. Shaw & Co., Inc.
13F
Company
mixed-class rows
1,081,004
mixed-class rows
$2,195,680 31 Dec 2025
13F
BANK OF AMERICA CORP /DE/
13F
Company
0.5%
522,357
$2,141,664 31 Dec 2025
13F
Russell Investments Group, Ltd.
13F
Company
0.38%
401,490
$1,646,106 31 Dec 2025
13F
CenterBook Partners LP
13F
Company
0.38%
398,845
$1,635,265 31 Dec 2025
13F
DIMENSIONAL FUND ADVISORS LP
13F
Company
0.36%
383,587
$1,572,521 31 Dec 2025
13F
Orion Resource Partners LP
13F
Company
0.36%
381,728
$1,571,418 31 Dec 2025
13F
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.
13F
Company
0.22%
231,219
$947,998 31 Dec 2025
13F
BANK OF MONTREAL /CAN/
13F
Company
0.19%
203,916
$839,422 31 Dec 2025
13F
BOOTHBAY FUND MANAGEMENT, LLC
13F
Company
class O/S missing
185,000
$758,500 31 Dec 2025
13F
GOLDMAN SACHS GROUP INC
13F
Company
0.15%
155,250
$636,525 31 Dec 2025
13F
ROYAL BANK OF CANADA
13F
Company
mixed-class rows
204,999
mixed-class rows
$601,000 31 Dec 2025
13F
XTX Topco Ltd
13F
Company
0.14%
143,704
$589,186 31 Dec 2025
13F
Quinn Opportunity Partners LLC
13F
Company
0.13%
142,336
$583,578 31 Dec 2025
13F
ARISTEIA CAPITAL, L.L.C.
13F
Company
mixed-class rows
955,996
mixed-class rows
$562,014 31 Dec 2025
13F
Quantbot Technologies LP
13F
Company
0.12%
127,847
$524,173 31 Dec 2025
13F
BNP PARIBAS FINANCIAL MARKETS
13F
Company
0.11%
114,101
$467,814 31 Dec 2025
13F
Summit Financial, LLC
13F
Company
0.1%
110,333
$452,365 31 Dec 2025
13F
GROUP ONE TRADING LLC
13F
Company
0.1%
103,187
$423,067 31 Dec 2025
13F

Institutional Holders of Algoma Steel Group Inc. - Common Shares, no par value (ASTL) as of Q1 2026

As of 31 Mar 2026, Algoma Steel Group Inc. - Common Shares, no par value (ASTL) was held by 97 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 71,941,294 shares. The largest 10 holders included Maple Rock Capital Partners Inc., MMCAP International Inc. SPC, DONALD SMITH & CO., INC., BlackRock, Inc., LITTLEJOHN & CO LLC, Scheer, Rowlett & Associates Investment Management Ltd., AEGIS FINANCIAL CORP, LM Asset Management Inc., Connor, Clark & Lunn Investment Management Ltd., and CDC Financial, Inc.. This page lists 97 institutional shareholders reporting positions in this security for the Q1 2026 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
109
Q1 2026 holders
97
Holder diff
-12
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 Value $ Q1 2026 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
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