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BLAIR WILLIAM & CO/IL: AMGN position timeline

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

BLAIR WILLIAM & CO/IL held 150,777 AMGN 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 150,777 shares
    Change vs previous 13F -5,221 shares

    0.14% of the 13F portfolio, value $54,599,288.

    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 155,998 shares
    Change vs previous 13F -8,198 shares

    0.16% of the 13F portfolio, value $54,887,760.

    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 164,196 shares
    Change vs previous 13F +1,957 shares

    0.14% of the 13F portfolio, value $53,742,847.

    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 162,239 shares
    Change vs previous 13F -4,654 shares

    0.12% of the 13F portfolio, value $45,783,790.

    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 166,893 shares
    Change vs previous 13F +275 shares

    0.13% of the 13F portfolio, value $46,598,314.

    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 166,618 shares
    Change vs previous 13F -11,978 shares

    0.16% of the 13F portfolio, value $51,909,885.

    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 178,596 shares
    Change vs previous 13F -21,709 shares

    0.14% of the 13F portfolio, value $46,549,227.

    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 200,305 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $64,540,195.

    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).