Security key
015658107
Algoma Steel Group Inc. - Common Shares, no par value (ASTL)
CUSIP: 015658107
Q4 2025 13F Holders as of 31 Dec 2025
- Type / Class
- Equity / Common Shares, no par value
- Shares outstanding
- 105,502,106
- Total 13F shares
- 83,116,370
- Share change
- +4,809,612
- Total reported value
- $346,027,150
- Put/Call ratio
- 58%
- Price per share
- $4.10
- Number of holders
- 109
- Value change
- +$24,898,340
- Number of buys
- 61
- Number of sells
- 57
Report period
Q4 2025
Institutions
109
Top holders
10
ASTL full security history
Newer quarter: Q1 2026
Previous quarter: Q3 2025
Algoma Steel Group Inc. SEC filings
Algoma Steel Group Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 015658107
Recent filing periods:
Ownership snapshot
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. Start with the largest verified stakes, then open the linked filing trail.
Lead holder
Stoney Lonesome HF LP
13D/G signal
Stoney Lonesome HF LP
Evidence rows
50
Latest as of
30 Sep 2025
13D/G
13F
Lead comparable stake: 5.4%
13D/G row: Stoney Lonesome HF LP
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Stoney Lonesome HF LP |
13D/G
COGHILL CLINT D
|
5.4%
|
$40,931,069
5,864,050 shares
|
+$2,830,397 | 30 Jun 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
3.7%
from 13D/G
|
$26,069,186
7,333,104 shares
|
— | 30 Sep 2025 |
| Zekelman Industries, Inc. |
13D/G
|
3.1%
|
$16,408,390
3,229,998 shares
|
$0 | 10 Sep 2025 |
| Maple Rock Capital Partners Inc. |
13F
Company
|
9.9%
|
$37,081,558
10,430,818 shares
|
— | 30 Sep 2025 |
| MMCAP International Inc. SPC |
13F
Company
|
7.7%
|
$28,720,234
8,078,828 shares
|
— | 30 Sep 2025 |
| DONALD SMITH & CO., INC. |
13F
Company
|
5.6%
|
$21,106,106
5,937,020 shares
|
— | 30 Sep 2025 |
| Scheer, Rowlett & Associates Investment Management Ltd. |
13F
Company
|
3.6%
|
$13,588,209
3,828,929 shares
|
— | 30 Sep 2025 |
| INVESCO SENIOR SECURED MANAGEMENT INC /ADV |
13F
Company
|
3.1%
|
$11,509,896
3,233,117 shares
|
— | 30 Sep 2025 |
| LITTLEJOHN & CO LLC |
13F
Company
|
2.6%
|
$9,576,768
2,693,887 shares
|
— | 30 Sep 2025 |
| GOLDENTREE ASSET MANAGEMENT LP |
13F
Company
|
2.4%
|
$8,864,564
2,493,548 shares
|
— | 30 Sep 2025 |
| J. Goldman & Co LP |
13F
Company
|
2.1%
|
$8,045,005
2,263,011 shares
|
— | 30 Sep 2025 |
| FMR LLC |
13F
Company
|
2.1%
|
$7,873,067
2,214,646 shares
|
— | 30 Sep 2025 |
| CONTRARIAN CAPITAL MANAGEMENT, L.L.C. |
13F
Company
|
1.9%
|
$7,243,974
2,037,686 shares
|
— | 30 Sep 2025 |
| AEGIS FINANCIAL CORP |
13F
Company
|
1.7%
|
$6,349,664
1,786,122 shares
|
— | 30 Sep 2025 |
| Quadrature Capital Ltd |
13F
Company
|
1.4%
|
$5,438,654
1,529,100 shares
|
— | 30 Sep 2025 |
| AYAL Capital Advisors Ltd |
13F
Company
|
1.4%
|
$5,215,185
1,467,000 shares
|
— | 30 Sep 2025 |
| MORGAN STANLEY |
13F
Company
|
1.2%
|
$4,593,426
1,292,103 shares
|
— | 30 Sep 2025 |
| LM Asset Management Inc. |
13F
Company
|
1.1%
|
$4,088,250
1,150,000 shares
|
— | 30 Sep 2025 |
| Solas Capital Management, LLC |
13F
Company
|
1%
|
$3,879,387
1,091,248 shares
|
— | 30 Sep 2025 |
| JB CAPITAL PARTNERS LP |
13F
Company
|
0.94%
|
$3,532,150
992,177 shares
|
— | 30 Sep 2025 |
| Bracebridge Capital, LLC |
13F
Company
|
0.88%
|
$3,288,130
924,931 shares
|
— | 30 Sep 2025 |
| Amitell Capital Pte Ltd |
13F
Company
|
0.82%
|
$3,073,600
864,585 shares
|
— | 30 Sep 2025 |
| Bain Capital Credit, LP |
13F
Company
|
0.79%
|
$2,976,290
837,212 shares
|
— | 30 Sep 2025 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
0.67%
|
$2,500,796
704,380 shares
|
— | 30 Sep 2025 |
| TCW GROUP INC |
13F
Company
|
0.64%
|
$2,391,370
672,678 shares
|
— | 30 Sep 2025 |
| READYSTATE ASSET MANAGEMENT LP |
13F
Company
|
0.61%
|
$2,276,352
640,324 shares
|
— | 30 Sep 2025 |
| HEARTLAND ADVISORS INC |
13F
Company
|
0.57%
|
$2,133,000
600,000 shares
|
— | 30 Sep 2025 |
| CITADEL ADVISORS LLC |
13F
Company
|
0.55%
|
$2,077,400
584,360 shares
|
— | 30 Sep 2025 |
| UBS Group AG |
13F
Company
|
0.54%
|
$2,038,707
573,476 shares
|
— | 30 Sep 2025 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
Company
|
0.48%
|
$1,811,167
510,153 shares
|
— | 30 Sep 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
0.47%
|
$1,781,061
500,074 shares
|
— | 30 Sep 2025 |
| Ewing Morris & Co. Investment Partners Ltd. |
13F
Company
|
0.46%
|
$1,739,687
490,000 shares
|
— | 30 Sep 2025 |
| Cubist Systematic Strategies, LLC |
13F
Company
|
0.44%
|
$1,651,387
464,682 shares
|
— | 30 Sep 2025 |
| Russell Investments Group, Ltd. |
13F
Company
|
0.36%
|
$1,352,573
380,598 shares
|
— | 30 Sep 2025 |
| Jump Financial, LLC |
13F
Company
|
0.34%
|
$1,271,716
357,726 shares
|
— | 30 Sep 2025 |
| GENERAL AMERICAN INVESTORS CO INC |
13F
Company
|
0.27%
|
$995,883
280,136 shares
|
— | 30 Sep 2025 |
| Walleye Capital LLC |
13F
Company
|
0.26%
|
$991,685
278,955 shares
|
— | 30 Sep 2025 |
| Senvest Management, LLC |
13F
Company
|
0.26%
|
$977,941
275,089 shares
|
— | 30 Sep 2025 |
| BANK OF AMERICA CORP /DE/ |
13F
Company
|
0.26%
|
$966,977
272,005 shares
|
— | 30 Sep 2025 |
| NewGen Asset Management Ltd |
13F
Company
|
0.23%
|
$1,026,224
246,097 shares
|
— | 30 Sep 2025 |
| CenterBook Partners LP |
13F
Company
|
0.22%
|
$832,997
234,317 shares
|
— | 30 Sep 2025 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
0.21%
|
$769,064
216,333 shares
|
— | 30 Sep 2025 |
| GOLDMAN SACHS GROUP INC |
13F
Company
|
0.2%
|
$765,910
215,446 shares
|
— | 30 Sep 2025 |
| HITE Hedge Asset Management LLC |
13F
Company
|
0.2%
|
$762,747
214,556 shares
|
— | 30 Sep 2025 |
| MOORE CAPITAL MANAGEMENT, LP |
13F
Company
|
0.2%
|
$754,837
212,331 shares
|
— | 30 Sep 2025 |
| Point72 Asset Management, L.P. |
13F
Company
|
0.19%
|
$714,669
201,100 shares
|
— | 30 Sep 2025 |
| BANK OF MONTREAL /CAN/ |
13F
Company
|
0.18%
|
$676,817
190,117 shares
|
— | 30 Sep 2025 |
| Quantbot Technologies LP |
13F
Company
|
0.18%
|
$670,462
188,597 shares
|
— | 30 Sep 2025 |
| Swiss National Bank |
13F
Company
|
0.16%
|
$582,768
164,107 shares
|
— | 30 Sep 2025 |
| VAN ECK ASSOCIATES CORP |
13F
Company
|
0.15%
|
$564,000
158,682 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
109
Shares
83,116,370
Rows loaded
109
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
117
Q4 2025 holders
109
Holder diff
-8
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 2025 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.
An asterisk sign (*) next to the price indicates that the price is likely invalid.