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CITADEL ADVISORS LLC: AMPG position timeline

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

CITADEL ADVISORS LLC held 0 AMPG shares at 2026-06-30 per its 13F-HR/A filed 2026-09-02.

no 13D/G or Form 3/4/5 step is dated after the latest 13F period 2026-06-30

  1. event date2026-06-30
    13G 1,443,191 shares
    Share basis changed not comparable

    5.7% of the class. Different basis (group aggregate from 13G).

    13G 0001104659-26-114133 filed by Citadel Securities GP LLC
    Accepted , ingested

    A 13D/G states the aggregate of its reporting persons, which may include entities that do not file a 13F.

  2. period ended2026-06-30
    13F/A 0 shares
    Change vs previous 13F -20,460 shares

    13F-HR/A 0001104659-26-104387 filed by CITADEL ADVISORS LLC
    Accepted , ingested

    Exited: the 13F for this period no longer lists the position.

  3. period ended2026-03-31
    13F 20,460 shares
    Change vs previous 13F +20,460 shares

    <0.01% of the 13F portfolio, value $38,874.

    13F-HR 0001104659-26-062477 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2024-12-31
    13F 0 shares
    Change vs previous 13F -20,836 shares

    13F-HR 0000950123-25-002739 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  5. period ended2024-09-30
    13F 20,836 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $16,254.

    13F-HR 0000950123-24-011767 filed by CITADEL ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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