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OBSIDIAN CIO, LLC: AMGN position timeline

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

OBSIDIAN CIO, LLC held 18,327 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 18,327 shares
    Change vs previous 13F +6,090 shares

    4.93% of the 13F portfolio, value $6,636,738.

    13F-HR 0001843581-26-000006 filed by OBSIDIAN CIO, 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 12,237 shares
    Change vs previous 13F +12,018 shares

    3.86% of the 13F portfolio, value $4,305,553.

    13F-HR 0001843581-26-000004 filed by OBSIDIAN CIO, 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 219 shares
    Change vs previous 13F -520 shares

    0.11% of the 13F portfolio, value $71,694.

    13F-HR 0001843581-26-000003 filed by OBSIDIAN CIO, 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 739 shares
    Change vs previous 13F -35 shares

    0.03% of the 13F portfolio, value $208,450.

    13F-HR 0001843581-25-000007 filed by OBSIDIAN CIO, 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 774 shares
    Change vs previous 13F +111 shares

    0.03% of the 13F portfolio, value $216,164.

    13F-HR 0001843581-25-000006 filed by OBSIDIAN CIO, 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 663 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $206,647.

    13F-HR 0001843581-25-000004 filed by OBSIDIAN CIO, LLC
    Filed (acceptance time not in the bulk data set), ingested

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