Tourmaline OilTRMLF

13F holders, Q1 2026 (March 31)
5holders −1
1new positions
2sold out
$47.79avg. 13F price*

At the end of Q1 2026, 5 institutions reported holding Tourmaline Oil Corp. (TRMLF) in their 13F filings, down 1 from Q4 2025. 1 opened new positions and 2 sold out. The largest holders were Grace & White Inc. ($19.0M), Kahn Brothers Group Inc. ($1.3M) and PNC Financial Services Group, Inc. ($76K).

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 Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions1$2K
Exits2$17.1M

All 13F filers, Q4 2025 → Q1 2026: 228 shares bought and 278,900 shares sold, net −278,672 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 5 holders

Grace & White Inc. 3.40% No change 397,443 $19.0M
Kahn Brothers Group Inc. 0.23% No change 26,959 $1.3M
PNC Financial Services Group, Inc. 0.00% Add +12.9% 1,586 $76K
Wellington-Altus USA Inc. 0.03% Reduce -52.8% 894 $51K
Ascentis Independent Advisors 0.00% New 47 $2K

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