Security key
015658107
Algoma Steel Group Inc. - Common Shares, no par value (ASTL)
CUSIP: 015658107
Q1 2025 13F Holders as of 31 Mar 2025
- Security type / class
- Equity / Common Shares, no par value
- Total 13F shares
- 76,933,946
- Total 13F value
- $425,534,483
- Share change
- -4,209,094
- Put/Call ratio
- 113%
- SEC-reported price per share
- $5.42
- Number of holders
- 127
- Value change
- -$41,916,215
- Number of buys
- 60
- Number of sells
- 62
- 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
Q1 2025
Institutions
127
Top holders
10
ASTL full security history
Ownership snapshot
Full 13F holder table
Algoma Steel Group Inc. SEC filings
Algoma Steel Group Inc. company facts
Broader feeds
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
BlackRock, Inc.
Disclosed value leader
DONALD SMITH & CO., INC.
Comparable rows
15/15
Latest evidence
31 Dec 2024
13F
13D/G
Lead comparable stake: 3.7%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 3.7%.
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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
3.7%
DONALD SMITH & CO., INC.
7.6%
MMCAP International Inc. SPC
6.3%
Maple Rock Capital Partners Inc.
5.8%
FMR LLC
4%
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 |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
3.7%
from 13D/G
|
$54,605,008
5,583,334 shares
|
— | 31 Dec 2024 |
| DONALD SMITH & CO., INC. |
13F
Company
|
7.6%
|
$78,901,157
8,067,603 shares
|
— | 31 Dec 2024 |
| MMCAP International Inc. SPC |
13F
Company
|
6.3%
|
$64,743,629
6,620,003 shares
|
— | 31 Dec 2024 |
| Maple Rock Capital Partners Inc. |
13F
Company
|
5.8%
|
$59,580,650
6,092,091 shares
|
— | 31 Dec 2024 |
| FMR LLC |
13F
Company
|
4%
|
$41,192,509
4,211,913 shares
|
— | 31 Dec 2024 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
3.7%
|
$38,639,782
3,950,898 shares
|
— | 31 Dec 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 Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
127
Shares
76,933,946
Rows available
127
| 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 Q1 2025 vs Q1 2025 Across Filers
Q1 2025 holders
127
Q1 2025 holders
127
Holder diff
0
| Investor | Q1 2025 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q1 2025 value | Value change | Value Chg % |
|---|