6 institutions reported holding $20.4M of Tourmaline Oil Corp (TRMLF) in SEC 13F filings for 2026-03-31. Largest institutional holders: GRACE & WHITE INC /NY ($19.0M), KAHN BROTHERS GROUP INC ($1.3M), PNC Financial Services Group, Inc. ($75,666), Golden State Equity Partners ($2,249), Cygnus Capital Advisors, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GRACE & WHITE INC /NY | $19.0M | 397,443 | Hold |
| 2 | KAHN BROTHERS GROUP INC | $1.3M | 26,959 | Hold |
| 3 | PNC Financial Services Group, Inc. | $75,666 | 1,586 | Added |
| 4 | Golden State Equity Partners | $2,249 | 47 | New |
| 5 | Cygnus Capital Advisors, LLC | $0 | 0 | Exited |
| 6 | VICTORY CAPITAL MANAGEMENT INC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31