Tourmaline OilTRMLF

13F holders, Q3 2025 (September 30)
2holders
0new positions
0sold out
$43.11avg. 13F price*

At the end of Q3 2025, 2 institutions reported holding Tourmaline Oil Corp. (TRMLF) in their 13F filings, unchanged from Q2 2025. 0 opened new positions and 0 sold out. The largest holders were Grace & White Inc. ($17.5M) and Kahn Brothers Group Inc. ($1.1M).

Company
Tourmaline Oil Corp.
CUSIP
89156V106
Latest filing quarter
Q2 2026

History

Number of 13F holders

0246 Q1 2024: 2Q1 2024Q2 2024: 2Q2 2024Q3 2024: 1Q3 2024Q4 2024: 2Q4 2024Q1 2025: 2Q1 2025Q2 2025: 2Q2 2025Q3 2025: 2Q3 2025Q4 2025: 6Q4 2025Q1 2026: 5Q1 2026Q2 2026: 5Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions0$0
Exits0$0

All 13F filers, Q2 2025 → Q3 2025: 4,550 shares sold, net −4,550 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 2 holders

Grace & White Inc. 3.13% Reduce -0.3% 405,343 $17.5M
Kahn Brothers Group Inc. 0.20% Reduce -12.7% 24,409 $1.1M

"% of holder's portfolio" is TRMLF's weight in each manager's 13F, not the share of Tourmaline Oil Corp. the manager owns.