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Mountain Lake Investment Management LLC: BLDR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Mountain Lake Investment Management LLC on BLDR, newest first. How the timeline and the estimate are built.

Mountain Lake Investment Management LLC held 147,867 BLDR shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 147,867 shares
    Change vs previous 13F +43,226 shares

    8.24% of the 13F portfolio, value $13,231,139.

    13F-HR 0001754960-26-000773 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 104,641 shares
    Change vs previous 13F +20,697 shares

    5.57% of the 13F portfolio, value $8,615,094.

    13F-HR 0001754960-26-000390 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 83,944 shares
    Change vs previous 13F +7,382 shares

    6.56% of the 13F portfolio, value $8,636,998.

    13F-HR 0001754960-26-000189 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 76,562 shares
    Change vs previous 13F -4,583 shares

    6.91% of the 13F portfolio, value $9,283,143.

    13F-HR 0001754960-25-000797 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 81,145 shares
    Change vs previous 13F +25,861 shares

    7.88% of the 13F portfolio, value $9,468,810.

    13F-HR 0001754960-25-000610 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 55,284 shares
    Change vs previous 13F +18,917 shares

    6.5% of the 13F portfolio, value $6,907,183.

    13F-HR 0001754960-25-000306 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 36,367 shares
    Change vs previous 13F +2,367 shares

    5.99% of the 13F portfolio, value $5,200,517.

    13F-HR 0001754960-25-000086 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 34,000 shares
    Change vs previous 13F not available

    6.93% of the 13F portfolio, value $6,591,240.

    13F-HR 0001308555-24-000004 filed by Mountain Lake Investment Management LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).