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Lumbard & Kellner, LLC: AMSC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Lumbard & Kellner, LLC on AMSC, newest first. How the timeline and the estimate are built.

Lumbard & Kellner, LLC held 74,139 AMSC shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 74,139 shares
    Change vs previous 13F +470 shares

    0.93% of the 13F portfolio, value $3,077,510.

    13F-HR 0001602476-26-000003 filed by Lumbard & Kellner, 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 73,669 shares
    Change vs previous 13F +2,508 shares

    0.86% of the 13F portfolio, value $2,493,696.

    13F-HR 0001602476-26-000002 filed by Lumbard & Kellner, 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 71,161 shares
    Change vs previous 13F -1,278 shares

    0.72% of the 13F portfolio, value $2,048,014.

    13F-HR 0001602476-26-000001 filed by Lumbard & Kellner, 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 72,439 shares
    Change vs previous 13F 0 shares

    1.58% of the 13F portfolio, value $4,302,152.

    13F-HR 0001602476-25-000005 filed by Lumbard & Kellner, 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 72,439 shares
    Change vs previous 13F not available

    1.16% of the 13F portfolio, value $2,657,787.

    13F-HR 0001602476-25-000004 filed by Lumbard & Kellner, LLC
    Filed (acceptance time not in the bulk data set), ingested

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