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Disclosery

CHELSEA COUNSEL CO: AMGN position timeline

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

CHELSEA COUNSEL CO held 8,954 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 8,954 shares
    Change vs previous 13F -420 shares

    1.37% of the 13F portfolio, value $3,242,423.

    13F-HR 0001420506-26-001529 filed by CHELSEA COUNSEL CO
    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/A 9,374 shares
    Change vs previous 13F -1,500 shares

    1.47% of the 13F portfolio, value $3,298,242.

    13F-HR/A 0001420506-26-001179 filed by CHELSEA COUNSEL CO
    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 10,874 shares
    Change vs previous 13F -75 shares

    1.53% of the 13F portfolio, value $3,559,169.

    13F-HR 0001420506-26-000608 filed by CHELSEA COUNSEL CO
    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 10,949 shares
    Change vs previous 13F -1,933 shares

    1.37% of the 13F portfolio, value $3,089,808.

    13F-HR 0001420506-25-003485 filed by CHELSEA COUNSEL CO
    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 12,882 shares
    Change vs previous 13F -135 shares

    1.78% of the 13F portfolio, value $3,596,784.

    13F-HR 0001420506-25-001525 filed by CHELSEA COUNSEL CO
    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 13,017 shares
    Change vs previous 13F 0 shares

    2.2% of the 13F portfolio, value $4,055,447.

    13F-HR 0001420506-25-001334 filed by CHELSEA COUNSEL CO
    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 13,017 shares
    Change vs previous 13F -120 shares

    1.75% of the 13F portfolio, value $3,392,751.

    13F-HR 0001420506-25-000653 filed by CHELSEA COUNSEL CO
    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 13,137 shares
    Change vs previous 13F not available

    2.09% of the 13F portfolio, value $4,232,873.

    13F-HR 0001420506-24-002603 filed by CHELSEA COUNSEL CO
    Filed (acceptance time not in the bulk data set), ingested

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