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Disclosery

OpenArc Corporate Advisory, LLC: AMGN position timeline

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

OpenArc Corporate Advisory, LLC held 276,377 AMGN shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 276,377 shares
    Change vs previous 13F +31,549 shares

    1.19% of the 13F portfolio, value $100,081,497.

    13F-HR 0002111345-26-000003 filed by OpenArc Corporate Advisory, 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 244,828 shares
    Change vs previous 13F +18,504 shares

    1.23% of the 13F portfolio, value $86,142,841.

    13F-HR 0002111345-26-000002 filed by OpenArc Corporate Advisory, 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 226,324 shares
    Change vs previous 13F not available

    1.22% of the 13F portfolio, value $74,078,091.

    13F-HR 0002111345-26-000001 filed by OpenArc Corporate Advisory, LLC
    Filed (acceptance time not in the bulk data set), ingested

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