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EMERALD ADVISERS, LLC: AMSC position timeline

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

EMERALD ADVISERS, LLC held 1,382,911 AMSC shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,382,911 shares
    Change vs previous 13F +186,632 shares

    0.81% of the 13F portfolio, value $57,404,636.

    13F-HR 0001104659-26-090959 filed by EMERALD ADVISERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • EMERALD ADVISERS, LLC: 843,956 shares
    • EMERALD MUTUAL FUND ADVISERS TRUST: 538,955 shares

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

  2. period ended2026-03-31
    13F 1,196,279 shares
    Change vs previous 13F +3,465 shares

    0.78% of the 13F portfolio, value $40,494,044.

    13F-HR 0001104659-26-054901 filed by EMERALD ADVISERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • EMERALD ADVISERS, LLC: 757,404 shares
    • EMERALD MUTUAL FUND ADVISERS TRUST: 438,875 shares

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

  3. period ended2025-12-31
    13F 1,192,814 shares
    Change vs previous 13F +363,894 shares

    0.65% of the 13F portfolio, value $34,329,187.

    13F-HR 0001104659-26-011928 filed by EMERALD ADVISERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • EMERALD ADVISERS, LLC: 757,568 shares
    • EMERALD MUTUAL FUND ADVISERS TRUST: 435,246 shares

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

  4. period ended2025-09-30
    13F 828,920 shares
    Change vs previous 13F +114,952 shares

    0.97% of the 13F portfolio, value $49,229,558.

    13F-HR 0001104659-25-104111 filed by EMERALD ADVISERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • EMERALD ADVISERS, LLC: 521,183 shares
    • EMERALD MUTUAL FUND ADVISERS TRUST: 307,737 shares

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

  5. period ended2025-06-30
    13F 713,968 shares
    Change vs previous 13F +662,652 shares

    0.6% of the 13F portfolio, value $26,195,486.

    13F-HR 0001104659-25-073440 filed by EMERALD ADVISERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • EMERALD ADVISERS, LLC: 500,054 shares
    • EMERALD MUTUAL FUND ADVISERS TRUST: 213,914 shares

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

  6. period ended2025-03-31
    13F 51,316 shares
    Change vs previous 13F +14,920 shares

    0.03% of the 13F portfolio, value $930,873.

    13F-HR 0001104659-25-043298 filed by EMERALD ADVISERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • EMERALD ADVISERS, LLC: 38,719 shares
    • EMERALD MUTUAL FUND ADVISERS TRUST: 12,597 shares

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

  7. period ended2024-12-31
    13F 36,396 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $896,434.

    13F-HR 0001104659-25-011405 filed by EMERALD ADVISERS, LLC
    Filed (acceptance time not in the bulk data set), ingested

    • EMERALD ADVISERS, LLC: 28,119 shares
    • EMERALD MUTUAL FUND ADVISERS TRUST: 8,277 shares

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