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Disclosery

Swiss National Bank: AMSC position timeline

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

Swiss National Bank held 88,600 AMSC shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 88,600 shares
    Change vs previous 13F -500 shares

    <0.01% of the 13F portfolio, value $3,677,786.

    13F-HR 0001582202-26-000007 filed by Swiss National Bank
    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 89,100 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $3,016,035.

    13F-HR 0001582202-26-000004 filed by Swiss National Bank
    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 89,100 shares
    Change vs previous 13F +4,500 shares

    <0.01% of the 13F portfolio, value $2,564,298.

    13F-HR 0001582202-26-000002 filed by Swiss National Bank
    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 84,600 shares
    Change vs previous 13F +1,300 shares

    <0.01% of the 13F portfolio, value $5,024,394.

    13F-HR 0001582202-25-000011 filed by Swiss National Bank
    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 83,300 shares
    Change vs previous 13F +10,700 shares

    <0.01% of the 13F portfolio, value $3,056,277.

    13F-HR 0001582202-25-000007 filed by Swiss National Bank
    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 72,600 shares
    Change vs previous 13F -2,700 shares

    <0.01% of the 13F portfolio, value $1,316,964.

    13F-HR 0001582202-25-000004 filed by Swiss National Bank
    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 75,300 shares
    Change vs previous 13F +3,100 shares

    <0.01% of the 13F portfolio, value $1,854,639.

    13F-HR 0001582202-25-000002 filed by Swiss National Bank
    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 72,200 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,703,920.

    13F-HR 0001582202-24-000011 filed by Swiss National Bank
    Filed (acceptance time not in the bulk data set), ingested

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