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Disclosery

Cornerstone Planning, LLC: AMGN position timeline

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

Cornerstone Planning, LLC held 1,784 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,784 shares
    Change vs previous 13F -5,270 shares

    0.15% of the 13F portfolio, value $645,959.

    13F-HR 0002063364-26-000234 filed by Cornerstone Planning, LLC
    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 7,054 shares
    Change vs previous 13F +492 shares

    0.56% of the 13F portfolio, value $2,483,417.

    13F-HR 0002063364-26-000151 filed by Cornerstone Planning, LLC
    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 6,562 shares
    Change vs previous 13F +302 shares

    0.5% of the 13F portfolio, value $2,155,144.

    13F-HR 0002063364-26-000084 filed by Cornerstone Planning, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-12-31
    13F 6,260 shares
    Change vs previous 13F not available

    0.62% of the 13F portfolio, value $1,631,605.

    13F-HR 0001802105-25-000003 filed by Cornerstone Planning, LLC
    Filed (acceptance time not in the bulk data set), ingested

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