7 institutions reported holding $10.1M of Transalta Corporation 1St Pfd Ser G (TSLTF) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($3.3M), GROUP ONE TRADING LLC ($2.2M), NATIONAL BANK OF CANADA /FI/ ($2.0M), Police & Firemen's Retirement System of New Jersey ($1.4M), SIMPLEX TRADING, LLC ($1.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $3.3M | 240,100 | Trimmed |
| 2 | GROUP ONE TRADING LLC | $2.2M | 158,600 | Trimmed |
| 3 | NATIONAL BANK OF CANADA /FI/ | $2.0M | 1,434 | Added |
| 4 | Police & Firemen's Retirement System of New Jersey | $1.4M | 99,512 | Trimmed |
| 5 | SIMPLEX TRADING, LLC | $1.2M | 90,000 | Trimmed |
| 6 | Northwest & Ethical Investments L.P. | $18,193 | 17,800 | New |
| 7 | Hanson & Doremus Investment Management | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30