# Tourmaline Oil Corp (TRMLF) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 89156V106
Page URL: https://superinvestorclub.com/stock/TRMLF
Last updated: 2026-07-08T12:40:45.724Z

## Summary

As of the most recent 13F filing period, Tourmaline Oil Corp (TRMLF) is held by 1 tracked superinvestors with an aggregate position value of $1.3M representing 026959 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Kahn Brothers](https://superinvestorclub.com/manager/83) | Kahn Brothers Group | 26959 | $1.3M | 0.23% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-12-31: 1 holders, $801,000 aggregate, 017308 shares
- 2025-03-31: 1 holders, $830,000 aggregate, 017209 shares
- 2025-06-30: 1 holders, $1.3M aggregate, 027959 shares
- 2025-09-30: 1 holders, $1.1M aggregate, 024409 shares
- 2025-12-31: 1 holders, $1.2M aggregate, 026959 shares
- 2026-03-31: 1 holders, $1.3M aggregate, 026959 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "Tourmaline Oil Corp (TRMLF) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/TRMLF), aggregating SEC 13F, Form 4, and congressional disclosures."