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BLAIR WILLIAM & CO/IL: AME position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on AME, newest first. How the timeline and the estimate are built.

BLAIR WILLIAM & CO/IL held 436,176 AME 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 436,176 shares
    Change vs previous 13F -21,271 shares

    0.27% of the 13F portfolio, value $105,528,476.

    13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
    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 457,447 shares
    Change vs previous 13F -28,727 shares

    0.28% of the 13F portfolio, value $98,058,314.

    13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
    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 486,174 shares
    Change vs previous 13F -43,099 shares

    0.27% of the 13F portfolio, value $99,816,479.

    13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
    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 529,273 shares
    Change vs previous 13F -160,587 shares

    0.26% of the 13F portfolio, value $99,503,334.

    13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
    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 689,860 shares
    Change vs previous 13F -15,277 shares

    0.35% of the 13F portfolio, value $124,837,051.

    13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
    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 705,137 shares
    Change vs previous 13F -1,265 shares

    0.37% of the 13F portfolio, value $121,382,292.

    13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
    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 706,402 shares
    Change vs previous 13F -11,793 shares

    0.37% of the 13F portfolio, value $127,335,972.

    13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
    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 718,195 shares
    Change vs previous 13F not available

    0.36% of the 13F portfolio, value $123,321,235.

    13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
    Filed (acceptance time not in the bulk data set), ingested

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