Security key
015658107
Algoma Steel Group Inc. - Common Shares, no par value (ASTL)
CUSIP: 015658107
Q4 2024 13F Holders as of 31 Dec 2024
- Security type / class
- Equity / Common Shares, no par value
- Total 13F shares
- 81,408,306
- Total 13F value
- $795,639,115
- Share change
- +3,157,921
- Put/Call ratio
- 25%
- SEC-reported price per share
- $9.78
- Number of holders
- 133
- Value change
- +$29,934,614
- Number of buys
- 61
- Number of sells
- 56
- Shares outstanding
- 105,502,106
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2024
Institutions
133
Top holders
10
ASTL full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2025
Previous quarter: Q3 2024
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 reported holders 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 comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
DONALD SMITH & CO., INC.
Disclosed value leader
DONALD SMITH & CO., INC.
Comparable rows
15/15
Latest evidence
30 Sep 2024
13F
Lead comparable stake: 7.6%
Showing 1-6 of 15 holder rows.
Quick read
DONALD SMITH & CO., INC. leads the comparable SEC ownership view at 7.6%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens DONALD SMITH & CO., INC.'s linked filing trail.
Comparable ownership
Top 5
DONALD SMITH & CO., INC.
7.6%
MMCAP International Inc. SPC
6.6%
Maple Rock Capital Partners Inc.
5.8%
BlackRock, Inc.
4.8%
MILLENNIUM MANAGEMENT LLC
3.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| DONALD SMITH & CO., INC. |
13F
Company
|
7.6%
|
$82,483,129
8,062,867 shares
|
— | 30 Sep 2024 |
| MMCAP International Inc. SPC |
13F
Company
|
6.6%
|
$71,582,665
6,997,328 shares
|
— | 30 Sep 2024 |
| Maple Rock Capital Partners Inc. |
13F
Company
|
5.8%
|
$62,322,091
6,092,091 shares
|
— | 30 Sep 2024 |
| BlackRock, Inc. |
13F
Company
|
4.8%
|
$52,086,149
5,091,510 shares
|
— | 30 Sep 2024 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
3.7%
|
$39,835,569
3,893,995 shares
|
— | 30 Sep 2024 |
| THOMIST CAPITAL MANAGEMENT, LP |
13F
Company
|
3.4%
|
$37,477,994
3,635,111 shares
|
— | 30 Sep 2024 |
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 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
133
Shares
81,408,306
Rows available
133
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2024 vs Q3 2024 Across Filers
Q3 2024 holders
130
Q4 2024 holders
133
Holder diff
3
| Investor | Q3 2024 Shares | Q4 2024 Shares | Share Diff | Share Chg % | Q3 2024 value | Q4 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend