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Disclosery

FOX RUN MANAGEMENT, L.L.C.: AMSC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of FOX RUN MANAGEMENT, L.L.C. on AMSC, newest first. How the timeline and the estimate are built.

FOX RUN MANAGEMENT, L.L.C. held 11,407 AMSC shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 11,407 shares
    Change vs previous 13F +11,407 shares

    0.08% of the 13F portfolio, value $473,505.

    13F-HR 0001420506-26-001397 filed by FOX RUN MANAGEMENT, L.L.C.
    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 0 shares
    Change vs previous 13F -14,944 shares

    13F-HR 0001420506-26-000922 filed by FOX RUN MANAGEMENT, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  3. period ended2025-12-31
    13F 14,944 shares
    Change vs previous 13F -3,917 shares

    0.07% of the 13F portfolio, value $430,088.

    13F-HR 0001420506-26-000280 filed by FOX RUN MANAGEMENT, L.L.C.
    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 18,861 shares
    Change vs previous 13F -18,644 shares

    0.17% of the 13F portfolio, value $1,120,155.

    13F-HR 0001420506-25-003071 filed by FOX RUN MANAGEMENT, L.L.C.
    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 37,505 shares
    Change vs previous 13F +8,786 shares

    0.23% of the 13F portfolio, value $1,376,058.

    13F-HR 0001420506-25-001732 filed by FOX RUN MANAGEMENT, L.L.C.
    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 28,719 shares
    Change vs previous 13F +28,719 shares

    0.08% of the 13F portfolio, value $520,963.

    13F-HR 0001420506-25-001008 filed by FOX RUN MANAGEMENT, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 0 shares
    Change vs previous 13F not available

    13F-HR 0001420506-24-002307 filed by FOX RUN MANAGEMENT, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.