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Disclosery

Rossby Financial, LCC: AMGN position timeline

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

Rossby Financial, LCC held 786 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 786 shares
    Change vs previous 13F -93 shares

    0.05% of the 13F portfolio, value $284,626.

    13F-HR 0002056510-26-000003 filed by Rossby Financial, LCC
    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 879 shares
    Change vs previous 13F +182 shares

    0.06% of the 13F portfolio, value $310,533.

    13F-HR 0002056510-26-000002 filed by Rossby Financial, LCC
    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 697 shares
    Change vs previous 13F +62 shares

    0.07% of the 13F portfolio, value $228,135.

    13F-HR 0002056510-26-000001 filed by Rossby Financial, LCC
    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 635 shares
    Change vs previous 13F +59 shares

    0.06% of the 13F portfolio, value $189,548.

    13F-HR 0002056510-25-000005 filed by Rossby Financial, LCC
    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 576 shares
    Change vs previous 13F -28 shares

    0.06% of the 13F portfolio, value $160,825.

    13F-HR 0002056510-25-000003 filed by Rossby Financial, LCC
    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 604 shares
    Change vs previous 13F -297 shares

    0.07% of the 13F portfolio, value $169,627.

    13F-HR 0002056510-25-000002 filed by Rossby Financial, LCC
    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 901 shares
    Change vs previous 13F not available

    0.15% of the 13F portfolio, value $234,837.

    13F-HR 0002056510-25-000001 filed by Rossby Financial, LCC
    Filed (acceptance time not in the bulk data set), ingested

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