7 institutions reported holding $9.5M of TRANSALTA CORP (TSLTF) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($3.2M), GROUP ONE TRADING LLC ($2.4M), Police & Firemen's Retirement System of New Jersey ($1.4M), SIMPLEX TRADING, LLC ($1.3M), NATIONAL BANK OF CANADA /FI/ ($1.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $3.2M | 244,400 | Added |
| 2 | GROUP ONE TRADING LLC | $2.4M | 180,600 | Trimmed |
| 3 | Police & Firemen's Retirement System of New Jersey | $1.4M | 105,102 | Hold |
| 4 | SIMPLEX TRADING, LLC | $1.3M | 96,700 | Trimmed |
| 5 | NATIONAL BANK OF CANADA /FI/ | $1.2M | 949 | Added |
| 6 | Hanson & Doremus Investment Management | $3,000 | 112 | New |
| 7 | OnyxPoint Global Management LP | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31