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LANARK FINANCIAL, INC.: AMPX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of LANARK FINANCIAL, INC. on AMPX, newest first. How the timeline and the estimate are built.

LANARK FINANCIAL, INC. held 23,360 AMPX shares at 2026-06-30 per its 13F-HR filed 2026-07-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 23,360 shares
    Change vs previous 13F +5,725 shares

    0.02% of the 13F portfolio, value $323,769.

    13F-HR 0000791540-26-000014 filed by LANARK FINANCIAL, INC.
    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 17,635 shares
    Change vs previous 13F +2,065 shares

    0.02% of the 13F portfolio, value $297,326.

    13F-HR 0000791540-26-000009 filed by LANARK FINANCIAL, INC.
    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 15,570 shares
    Change vs previous 13F +7,132 shares

    0.01% of the 13F portfolio, value $122,847.

    13F-HR 0000791540-26-000003 filed by LANARK FINANCIAL, INC.
    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 8,438 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $88,767.

    13F-HR 0000791540-25-000012 filed by LANARK FINANCIAL, INC.
    Filed (acceptance time not in the bulk data set), ingested

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