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Disclosery

Great Diamond Partners, LLC: AMGN position timeline

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

Great Diamond Partners, LLC held 10,339 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-07-17.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 10,339 shares
    Change vs previous 13F -13 shares

    0.64% of the 13F portfolio, value $3,743,959.

    13F-HR 0001172661-26-002658 filed by Great Diamond Partners, 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 10,352 shares
    Change vs previous 13F -19 shares

    0.7% of the 13F portfolio, value $3,642,351.

    13F-HR 0001172661-26-001739 filed by Great Diamond Partners, 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 10,371 shares
    Change vs previous 13F -176 shares

    0.65% of the 13F portfolio, value $3,394,532.

    13F-HR 0001172661-26-000514 filed by Great Diamond Partners, LLC
    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 10,547 shares
    Change vs previous 13F -26 shares

    0.58% of the 13F portfolio, value $2,976,363.

    13F-HR 0001172661-25-004336 filed by Great Diamond Partners, LLC
    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 10,573 shares
    Change vs previous 13F +45 shares

    0.62% of the 13F portfolio, value $2,952,087.

    13F-HR 0001172661-25-003158 filed by Great Diamond Partners, LLC
    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 10,528 shares
    Change vs previous 13F -3,674 shares

    0.9% of the 13F portfolio, value $3,279,998.

    13F-HR 0001172661-25-001768 filed by Great Diamond Partners, LLC
    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 14,202 shares
    Change vs previous 13F -225 shares

    0.96% of the 13F portfolio, value $3,701,609.

    13F-HR 0001172661-25-000333 filed by Great Diamond Partners, LLC
    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 14,427 shares
    Change vs previous 13F not available

    1.18% of the 13F portfolio, value $4,648,524.

    13F-HR 0001172661-24-004362 filed by Great Diamond Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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