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Disclosery

Westmount Partners, LLC: AMGN position timeline

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

Westmount Partners, LLC held 3,735 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-07-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 3,735 shares
    Change vs previous 13F -61 shares

    0.3% of the 13F portfolio, value $1,352,614.

    13F-HR 0002051491-26-000004 filed by Westmount 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 3,796 shares
    Change vs previous 13F +112 shares

    0.33% of the 13F portfolio, value $1,335,516.

    13F-HR 0002051491-26-000003 filed by Westmount 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 3,684 shares
    Change vs previous 13F +14 shares

    0.3% of the 13F portfolio, value $1,205,811.

    13F-HR 0002051491-26-000001 filed by Westmount 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 3,670 shares
    Change vs previous 13F -250 shares

    0.28% of the 13F portfolio, value $1,095,564.

    13F-HR 0002051491-25-000017 filed by Westmount 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 3,920 shares
    Change vs previous 13F +30 shares

    0.3% of the 13F portfolio, value $1,094,417.

    13F-HR 0002051491-25-000015 filed by Westmount 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 3,890 shares
    Change vs previous 13F -411 shares

    0.37% of the 13F portfolio, value $1,211,903.

    13F-HR 0002051491-25-000013 filed by Westmount 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 4,301 shares
    Change vs previous 13F +15 shares

    0.34% of the 13F portfolio, value $1,120,971.

    13F-HR 0002051491-25-000002 filed by Westmount 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 4,286 shares
    Change vs previous 13F not available

    0.42% of the 13F portfolio, value $1,381,116.

    13F-HR 0002051491-25-000001 filed by Westmount Partners, LLC
    Filed (acceptance time not in the bulk data set), ingested

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