Who Owns ALGOMA STL GROUP INC (ASTLW)? -- Institutional Holders (2026-03-31)
29 institutions reported holding $3.6M of ALGOMA STL GROUP INC (ASTLW) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($1.4M), BOOTHBAY FUND MANAGEMENT, LLC ($764,050), CDC Financial, Inc. ($412,907), LMR Partners LLP ($279,188), IMC-Chicago, LLC ($239,540). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | SIMPLEX TRADING, LLC | $1.4M | 344,200 | Trimmed |
| 2 | BOOTHBAY FUND MANAGEMENT, LLC | $764,050 | 185,000 | Hold |
| 3 | CDC Financial, Inc. | $412,907 | 4.2M | Added |
| 4 | LMR Partners LLP | $279,188 | 2.8M | Hold |
| 5 | IMC-Chicago, LLC | $239,540 | 58,000 | Trimmed |
| 6 | NATIONAL BANK OF CANADA /FI/ | $108,820 | 26,382 | Trimmed |
| 7 | GROUP ONE TRADING LLC | $68,145 | 16,500 | Trimmed |
| 8 | ARISTEIA CAPITAL, L.L.C. | $67,832 | 810,424 | Trimmed |
| 9 | K2 PRINCIPAL FUND, L.P. | $62,179 | 690,879 | Hold |
| 10 | D. E. Shaw & Co., Inc. | $41,608 | 557,746 | Hold |
| 11 | Aequim Alternative Investments LP | $30,899 | 414,191 | Hold |
| 12 | TORONTO DOMINION BANK | $10,387 | 107,100 | Added |
| 13 | Claret Asset Management Corp | $10,000 | 102,000 | Hold |
| 14 | JANE STREET GROUP, LLC | $9,757 | 98,157 | Trimmed |
| 15 | Virtu Financial LLC | $7,000 | 92,007 | Trimmed |
| 16 | StoneX Group Inc. | $6,889 | 69,309 | New |
| 17 | MILLENNIUM MANAGEMENT LLC | $5,094 | 51,250 | Hold |
| 18 | Royal Bank of Canada | $5,000 | 48,943 | Trimmed |
| 19 | Caption Management, LLC | $4,428 | 44,550 | Hold |
| 20 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,641 | 21,994 | New |
| 21 | LPL Financial LLC | $1,203 | 12,100 | Hold |
| 22 | Saba Capital Management, L.P. | $1,014 | 10,200 | Hold |
| 23 | Alpine Global Management, LLC | $545 | 29 | New |
| 24 | UBS Group AG | $107 | 1,079 | Trimmed |
| 25 | Clear Street Group Inc. | $10 | 100 | New |
Source: SEC Form 13F filings · as of 2026-03-31