Mountain Lake Investment Management LLC: BTU position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Mountain Lake Investment Management LLC on BTU, newest first. How the timeline and the estimate are built.
Mountain Lake Investment Management LLC held 0 BTU shares at 2025-12-31 per its 13F-HR filed 2026-02-17.
the latest 13F is the newest step
- period ended2025-12-3113F 0 sharesChange vs previous 13F -34,420 shares
13F-HR 0001754960-26-000189 filed by Mountain Lake Investment Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
- period ended2025-09-3013F 34,420 sharesChange vs previous 13F -24,925 shares
0.68% of the 13F portfolio, value $912,818.
13F-HR 0001754960-25-000797 filed by Mountain Lake Investment Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 59,345 sharesChange vs previous 13F -55,293 shares
0.66% of the 13F portfolio, value $796,410.
13F-HR 0001754960-25-000610 filed by Mountain Lake Investment Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 114,638 sharesChange vs previous 13F +91,638 shares
1.46% of the 13F portfolio, value $1,553,345.
13F-HR 0001754960-25-000306 filed by Mountain Lake Investment Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 23,000 sharesChange vs previous 13F not available
0.55% of the 13F portfolio, value $481,620.
13F-HR 0001754960-25-000086 filed by Mountain Lake Investment Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).