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Disclosery

S.A. Mason LLC: AMGN position timeline

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

S.A. Mason LLC held 6,408 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 6,408 shares
    Change vs previous 13F +125 shares

    0.71% of the 13F portfolio, value $2,320,465.

    13F-HR 0001800911-26-000003 filed by S.A. Mason 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 6,283 shares
    Change vs previous 13F 0 shares

    0.83% of the 13F portfolio, value $2,210,674.

    13F-HR 0001800911-26-000002 filed by S.A. Mason 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 6,283 shares
    Change vs previous 13F -15 shares

    0.81% of the 13F portfolio, value $2,056,489.

    13F-HR 0001800911-26-000001 filed by S.A. Mason 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 6,298 shares
    Change vs previous 13F 0 shares

    0.78% of the 13F portfolio, value $1,777,296.

    13F-HR 0001800911-25-000005 filed by S.A. Mason 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 6,298 shares
    Change vs previous 13F 0 shares

    0.85% of the 13F portfolio, value $1,758,465.

    13F-HR 0001800911-25-000003 filed by S.A. Mason 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 6,298 shares
    Change vs previous 13F -169 shares

    1.04% of the 13F portfolio, value $1,962,142.

    13F-HR 0001800911-25-000002 filed by S.A. Mason 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 6,467 shares
    Change vs previous 13F +26 shares

    0.89% of the 13F portfolio, value $1,685,630.

    13F-HR 0001800911-25-000001 filed by S.A. Mason 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 6,441 shares
    Change vs previous 13F not available

    1.1% of the 13F portfolio, value $2,075,327.

    13F-HR 0001800911-24-000005 filed by S.A. Mason LLC
    Filed (acceptance time not in the bulk data set), ingested

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