ASTL · Algoma Steel Group Inc. · Shareholders & Ownership
Market Cap
$504.28M
Shares
105.39M
Volume · Oct 23
995.24K
Avg daily vol (3M)
1.04M
Every disclosed holder of ASTL in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns ASTL
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 82,800,151 | — |
| Insiders (Forms 3, 4, 5) | 0 | — |
| 13D/G-only blocks | 13,558,271 | — |
| Registered funds (N-PORT, not summed) | 6,089,448 | — |
% Out is unavailable: a foreign private issuer reports ordinary shares, a different unit from the listed shares.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of ASTL
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Maple Rock Capital Partners Inc.
13F
CIK 1658363 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
16,861,818 | ||
| 2 |
MMCAP International Inc. SPC
13F
CIK 1304857 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
10,954,738 | ||
| 2.1 |
MMCAP International Inc. SPC
13G
CIK 1304857 · Unknown · Jun 30, 2026
Rule 13d-1(c), passive investor, not summed
|
10,954,738 | ||
| 3 |
CDC Financial, Inc.
13F
CIK 2077836 · Unknown · Jun 30, 2026
Classes ASTL, ASTLW, carried, not yet filed for the newest quarter
|
5,899,643 | ||
| 4 |
|
5,864,050 | ||
| 5 |
DONALD SMITH & CO., INC.
13F
CIK 814375 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,277,631 | ||
| 5.1 |
DONALD SMITH & CO., INC.
13G
CIK 814375 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
5,277,631 | ||
| 6 |
CONTRARIAN CAPITAL MANAGEMENT, L.L.C.
13G
CIK 1050417 · Registered investment adviser · Dec 31, 2023
Rule 13d-1(b), qualified institution
|
4,464,223 | ||
| 7 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,143,265 | ||
| 7.1 |
BlackRock Strategic Income Opportunities Portfolio
Fund
S000062358 · Registered fund · Jun 30, 2026
BlackRock Funds V, not summed
|
1,251,408 | ||
| 7.2 |
BlackRock Global Allocation Fund, Inc.
Fund
S000002245 · Registered fund · Jul 31, 2026
BlackRock Global Allocation Fund, Inc., not summed
|
547,037 | ||
| 7.3 |
iShares U.S. Infrastructure ETF
Fund
S000061314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
156,816 | ||
| 7.4 |
BlackRock Global Allocation V.I. Fund
Fund
S000002887 · Registered fund · Jun 30, 2026
BlackRock Variable Series Funds, Inc., not summed
|
130,421 | ||
| 7.5 |
iShares U.S. Small-Cap Equity Factor ETF
Fund
S000048624 · Registered fund · Jul 31, 2026
iShares Trust, not summed
|
88,188 | ||
| 8 |
Scheer, Rowlett & Associates Investment Management Ltd.
13F
CIK 1426327 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,846,390 | ||
| 9 |
Zekelman Industries, Inc.
13D
CIK 1742916 · Unknown · Sep 10, 2025
|
3,229,998 | ||
| 10 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,958,350 | ||
| 11 |
LMR Partners LLP
13F
CIK 1578621 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,808,732 | ||
| 12 |
AEGIS FINANCIAL CORP
13F
CIK 1140753 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,786,122 | ||
| 12.1 |
Aegis Value Fund
Fund
S000043790 · Registered fund · Jun 30, 2026
Aegis Funds, not summed
|
1,727,084 | ||
| 13 |
BRIGHTLINE CAPITAL MANAGEMENT, LLC
13F
CIK 1432450 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,660,000 | ||
| 14 |
LITTLEJOHN & CO LLC
13F
CIK 1042537 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,518,714 | ||
| 15 |
Connor, Clark & Lunn Investment Management Ltd.
13F
CIK 1596800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,387,320 | ||
| 16 |
MACKENZIE FINANCIAL CORP
13F
CIK 919859 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,329,806 | ||
| 17 |
Sourcerock Group LLC
13F
CIK 1822531 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,247,507 | ||
| 18 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
Classes ASTL, ASTLW, carried, not yet filed for the newest quarter
|
1,228,119 | ||
| 19 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,041,811 | ||
| 20 |
LM Asset Management Inc.
13F
CIK 2057190 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,016,000 | ||
| 21 |
Bracebridge Capital, LLC
13F
CIK 1426486 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
924,931 | ||
| 22 |
JB CAPITAL PARTNERS LP
13F
CIK 1138532 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
872,277 | ||
| 23 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
845,935 | ||
| 24 |
Bain Capital Credit, LP
13F
CIK 1317947 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
825,777 | ||
| 25 |
ARISTEIA CAPITAL, L.L.C.
13F
CIK 1080171 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
810,424 | ||
| 26 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
810,208 | ||
| 27 |
Ewing Morris & Co. Investment Partners Ltd.
13F
CIK 1846838 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
722,350 | ||
| 28 |
K2 PRINCIPAL FUND, L.P.
13F
CIK 1461790 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
690,879 | ||
| 29 |
Quadrature Capital Ltd
13F
CIK 1651424 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
682,493 | ||
| 30 |
TCW GROUP INC
13F
CIK 850401 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
607,478 | ||
| 31 |
Point72 Asset Management, L.P.
13F
CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
575,225 | ||
| 32 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
499,494 | ||
| 33 |
TD Asset Management Inc
13F
CIK 1056053 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
498,279 | ||
| 34 |
ACADIAN ASSET MANAGEMENT LLC
13F
CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
488,194 | ||
| 35 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
471,288 | ||
| 35.1 |
U.S. Small Cap Equity Fund
Fund
S000001586 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
227,595 | ||
| 35.2 |
U.S. Small Cap Equity Fund
Fund
S000006864 · Registered fund · Jun 30, 2026
RUSSELL INVESTMENT FUNDS, not summed
|
42,344 | ||
| 36 |
READYSTATE ASSET MANAGEMENT LP
13F
CIK 1900923 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
463,228 | ||
| 37 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
438,431 | ||
| 37.1 |
Schwab Fundamental International Small Equity ETF
Fund
S000040880 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
462,372 | ||
| 37.2 |
Schwab Fundamental International Small Equity Index Fund
Fund
S000019901 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
84,238 | ||
| 38 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
418,754 | ||
| 39 |
Aequim Alternative Investments LP
13F
CIK 1728201 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
414,191 | ||
| 40 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
386,942 | ||
| 41 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
356,116 | ||
| 41.1 |
Dimensional International Small Cap ETF
Fund
S000075154 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
94,153 | ||
| 41.2 |
The Canadian Small Company Series
Fund
S000017804 · Registered fund · Jul 31, 2026
DFA INVESTMENT TRUST CO, not summed
|
89,175 | ||
| 41.3 |
Dimensional International Core Equity Market ETF
Fund
S000069433 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
64,415 | ||
| 41.4 |
Dimensional International Core Equity 2 ETF
Fund
S000075152 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
48,323 | ||
| 41.5 |
World ex U.S. Core Equity Portfolio
Fund
S000039915 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
18,583 | ||
| 42 |
|
308,972 | ||
| 43 |
Voleon Capital Management LP
13F
CIK 1479847 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
307,297 | ||
| 44 |
BlackRock Total Return Fund
Fund
S000004071 · Registered fund · Jun 30, 2026
BlackRock Bond Fund, Inc., not summed
|
296,503 | ||
| 45 |
Jump Financial, LLC
13F
CIK 1831577 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
289,675 | ||
| 46 |
BANK OF MONTREAL /CAN/
13F
CIK 927971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
288,488 | ||
| 47 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
264,994 | ||
| 48 |
BOOTHBAY FUND MANAGEMENT, LLC
13F
CIK 1549230 · Registered investment adviser · Jun 30, 2026
Classes ASTL, ASTLW, carried, not yet filed for the newest quarter
|
256,194 | ||
| 49 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
229,858 | ||
| 50 |
StoneX Group Inc.
13F
CIK 913760 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
207,927 |
8 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 123 holders
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