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ALGERT GLOBAL LLC: AMSC position timeline

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

ALGERT GLOBAL LLC held 353,832 AMSC shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 353,832 shares
    Change vs previous 13F -136,139 shares

    0.17% of the 13F portfolio, value $14,687,566.

    13F-HR 0001275218-26-000017 filed by ALGERT GLOBAL 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/A 489,971 shares
    Change vs previous 13F +29,200 shares

    0.25% of the 13F portfolio, value $16,585,518.

    13F-HR/A 0001275218-26-000016 filed by ALGERT GLOBAL 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/A 460,771 shares
    Change vs previous 13F +172,891 shares

    0.21% of the 13F portfolio, value $13,260,989.

    13F-HR/A 0001275218-26-000015 filed by ALGERT GLOBAL 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/A 287,880 shares
    Change vs previous 13F +82,175 shares

    0.29% of the 13F portfolio, value $17,097,193.

    13F-HR/A 0001275218-26-000014 filed by ALGERT GLOBAL 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/A 205,705 shares
    Change vs previous 13F +110,047 shares

    0.16% of the 13F portfolio, value $7,547,316.

    13F-HR/A 0001275218-26-000013 filed by ALGERT GLOBAL 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/A 95,658 shares
    Change vs previous 13F +33,100 shares

    0.04% of the 13F portfolio, value $1,735,236.

    13F-HR/A 0001275218-26-000012 filed by ALGERT GLOBAL 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/A 62,558 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $1,540,804.

    13F-HR/A 0001275218-26-000011 filed by ALGERT GLOBAL LLC
    Filed (acceptance time not in the bulk data set), ingested

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