Who Owns ALGOMA STL GROUP INC (ASTLW)? -- Institutional Holders (2026-06-30)
27 institutions reported holding $2.7M of ALGOMA STL GROUP INC (ASTLW) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($1.2M), BOOTHBAY FUND MANAGEMENT, LLC ($749,250), NATIONAL BANK OF CANADA /FI/ ($166,998), CDC Financial, Inc. ($124,620), IMC-Chicago, LLC ($101,655). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | SIMPLEX TRADING, LLC | $1.2M | 306,900 | Trimmed |
| 2 | BOOTHBAY FUND MANAGEMENT, LLC | $749,250 | 185,000 | Hold |
| 3 | NATIONAL BANK OF CANADA /FI/ | $166,998 | 40,982 | Added |
| 4 | CDC Financial, Inc. | $124,620 | 4.2M | Hold |
| 5 | IMC-Chicago, LLC | $101,655 | 25,100 | Trimmed |
| 6 | GROUP ONE TRADING LLC | $95,175 | 23,500 | Added |
| 7 | LMR Partners LLP | $84,262 | 2.8M | Hold |
| 8 | K2 PRINCIPAL FUND, L.P. | $34,544 | 690,879 | Hold |
| 9 | ARISTEIA CAPITAL, L.L.C. | $26,177 | 810,424 | Hold |
| 10 | D. E. Shaw & Co., Inc. | $19,354 | 557,746 | Hold |
| 11 | Aequim Alternative Investments LP | $14,372 | 414,191 | Hold |
| 12 | Purpose Unlimited Inc. | $9,871 | 2,000 | New |
| 13 | StoneX Group Inc. | $8,788 | 207,927 | Added |
| 14 | WOLVERINE ASSET MANAGEMENT LLC | $6,896 | 229,858 | New |
| 15 | Virtu Financial LLC | $6,000 | 164,870 | Added |
| 16 | TORONTO DOMINION BANK | $3,589 | 119,621 | Added |
| 17 | JANE STREET GROUP, LLC | $3,023 | 100,764 | Added |
| 18 | Claret Asset Management Corp | $3,000 | 102,000 | Hold |
| 19 | MILLENNIUM MANAGEMENT LLC | $1,538 | 51,250 | Hold |
| 20 | Caption Management, LLC | $1,336 | 44,550 | Hold |
| 21 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,052 | 30,310 | Added |
| 22 | Royal Bank of Canada | $1,000 | 17,427 | Trimmed |
| 23 | LPL Financial LLC | $363 | 12,100 | Hold |
| 24 | Alpine Global Management, LLC | $293 | 4 | Trimmed |
| 25 | UBS Group AG | $121 | 4,038 | Added |
Source: SEC Form 13F filings · as of 2026-06-30