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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM: AMSC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM on AMSC, newest first. How the timeline and the estimate are built.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM held 50,888 AMSC shares at 2026-06-30 per its 13F-HR/A filed 2026-08-24.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 50,888 shares
    Change vs previous 13F -6,128 shares

    <0.01% of the 13F portfolio, value $2,112,361.

    13F-HR/A 0001081019-26-000020 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 57,016 shares
    Change vs previous 13F +6,105 shares

    <0.01% of the 13F portfolio, value $1,929,992.

    13F-HR 0001081019-26-000007 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 50,911 shares
    Change vs previous 13F +234 shares

    <0.01% of the 13F portfolio, value $1,465,219.

    13F-HR 0001081019-26-000004 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 50,677 shares
    Change vs previous 13F -92 shares

    <0.01% of the 13F portfolio, value $3,009,707.

    13F-HR 0001081019-25-000025 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 50,769 shares
    Change vs previous 13F +15,210 shares

    <0.01% of the 13F portfolio, value $1,862,715.

    13F-HR 0001081019-25-000018 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 35,559 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $645,040.

    13F-HR 0001081019-25-000012 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    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 35,559 shares
    Change vs previous 13F +709 shares

    <0.01% of the 13F portfolio, value $875,818.

    13F-HR/A 0001081019-25-000009 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F/A 34,850 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $822,460.

    13F-HR/A 0001081019-25-000010 filed by CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
    Filed (acceptance time not in the bulk data set), ingested

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