Who owns Algoma Steel Group Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.
Institutional ownership of ASTLW from SEC Form 13F filings across 14 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 14 institutions disclosed 8.3M shares of Algoma Steel Group Inc. worth $1.2M — about 7.6% of shares outstanding; the largest disclosed holder is CDC Financial, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
14
13F holders
$1.2M
value, 2026 filers
7.6%
of shares outstanding (8.3M sh)
0
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of ASTLW's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | CDC Financial, Inc. | 4.2M | $124,620 | 0.1% | 3.8% | 0.0% |
| 2 | LMR Partners LLP | 2.8M | $84,262 | 0.0% | 2.6% | 0.0% |
| 3 | D. E. Shaw & Co., Inc. | 557,746 | $19,354 | 0.0% | 0.5% | 0.0% |
| 4 | StoneX Group Inc. | 207,927 | $8,788 | 0.0% | 0.2% | +200.0% |
| 5 | BOOTHBAY FUND MANAGEMENT, LLC | 185,000 | $749,250 | 0.0% | 0.2% | 0.0% |
| 6 | TORONTO DOMINION BANK | 119,621 | $3,589 | 0.0% | 0.1% | +11.7% |
| 7 | JANE STREET GROUP, LLC | 100,764 | $3,023 | 0.0% | 0.1% | +2.7% |
| 8 | Caption Management, LLC | 44,550 | $1,336 | 0.0% | 0% | 0.0% |
| 9 | NATIONAL BANK OF CANADA /FI/ | 40,982 | $166,998 | 0.0% | 0% | +55.3% |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 30,310 | $1,052 | 0.0% | 0% | +37.8% |
| 11 | ROYAL BANK OF CANADA | 17,427 | $1,000 | 0.0% | 0% | -64.4% |
| 12 | LPL Financial LLC | 12,100 | $363 | 0.0% | 0% | 0.0% |
| 13 | UBS Group AG | 4,038 | $121 | 0.0% | 0% | +274.2% |
| 14 | Clear Street Group Inc. | 100 | $3 | 0.0% | 0% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.