Which superinvestors hold Tourmaline Oil Corp (TRMLF)?

Per the latest SEC 13F filings, 1 superinvestor hold Tourmaline Oil Corp (TRMLF): Thomas Kahn. Combined value held is about $1.3M, with Thomas Kahn the largest holder.

Tourmaline Oil Corp

Held by 1 superinvestor (TRMLF).

Educational data only — not investment advice. 13F positions are self-reported and can lag up to 45 days.

TickerTRMLF

Holder count1

Total value held$1.3M

Largest holderThomas Kahn

External

Ownership overview

Tourmaline Oil Corp (TRMLF) is held by 1 of the superinvestors tracked on Compounder, with a combined $1.3M in reported 13F value. The largest position belongs to Thomas Kahn, where it makes up 0.2% of the portfolio.

Holder counts and values reflect the most recent SEC Form 13F filings, through the quarter ended 2026-03-31. Source: SEC EDGAR. A 13F shows only long US-listed positions and can lag the real portfolio by up to 45 days, so this is disclosed long ownership, not a complete picture.

Holders over time

Superinvestors holding this security over the last 6 quarters: 1 → 1.

Early quarters may understate holder counts due to data backfill — read the slope with care.

Superinvestors Holding This Security

Investor	Value	Shares	Weight (prev→now)
Thomas Kahn	$1.3M	26,959	0.2% → 0.2%

Thomas Kahn
Value$1.3MWeight (prev→now)0.2% → 0.2%

Sources· SEC EDGAR 13F as of 2026-05-08

Thomas Kahn

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