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Disclosery

Columbia Asset Management: AMGN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Columbia Asset Management on AMGN, newest first. How the timeline and the estimate are built.

Columbia Asset Management held 21,458 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-07-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 21,458 shares
    Change vs previous 13F -962 shares

    1.35% of the 13F portfolio, value $7,770,239.

    13F-HR 0002085853-26-000792 filed by Columbia Asset Management
    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 22,420 shares
    Change vs previous 13F -583 shares

    1.5% of the 13F portfolio, value $7,888,483.

    13F-HR 0002085853-26-000430 filed by Columbia Asset Management
    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 23,003 shares
    Change vs previous 13F +62 shares

    1.34% of the 13F portfolio, value $7,528,955.

    13F-HR 0002085853-26-000122 filed by Columbia Asset Management
    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 22,941 shares
    Change vs previous 13F +273 shares

    1.21% of the 13F portfolio, value $6,473,897.

    13F-HR 0002085853-25-000221 filed by Columbia Asset Management
    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 22,668 shares
    Change vs previous 13F +1,169 shares

    1.24% of the 13F portfolio, value $6,329,063.

    13F-HR 0001667731-25-000872 filed by Columbia Asset Management
    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 21,499 shares
    Change vs previous 13F -697 shares

    1.36% of the 13F portfolio, value $6,697,966.

    13F-HR 0001667731-25-000412 filed by Columbia Asset Management
    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 22,196 shares
    Change vs previous 13F -876 shares

    1.11% of the 13F portfolio, value $5,785,232.

    13F-HR 0001667731-25-000251 filed by Columbia Asset Management
    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 23,072 shares
    Change vs previous 13F not available

    1.3% of the 13F portfolio, value $7,434,000.

    13F-HR 0001585047-24-000004 filed by Columbia Asset Management
    Filed (acceptance time not in the bulk data set), ingested

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