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Campbell & CO Investment Adviser LLC: AMPH position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Campbell & CO Investment Adviser LLC on AMPH, newest first. How the timeline and the estimate are built.

Campbell & CO Investment Adviser LLC held 23,211 AMPH 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 23,211 shares
    Change vs previous 13F +23,211 shares

    0.02% of the 13F portfolio, value $468,398.

    13F-HR 0001140361-26-030844 filed by Campbell & CO Investment Adviser 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 0 shares
    Change vs previous 13F -30,682 shares

    13F-HR 0001140361-26-021562 filed by Campbell & CO Investment Adviser 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.

  3. period ended2025-12-31
    13F 30,682 shares
    Change vs previous 13F -13,386 shares

    0.04% of the 13F portfolio, value $821,664.

    13F-HR 0001140361-26-004957 filed by Campbell & CO Investment Adviser 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 44,068 shares
    Change vs previous 13F +21,635 shares

    0.09% of the 13F portfolio, value $1,174,412.

    13F-HR 0001140361-25-039554 filed by Campbell & CO Investment Adviser 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 22,433 shares
    Change vs previous 13F -23,356 shares

    0.03% of the 13F portfolio, value $515,062.

    13F-HR 0001140361-25-029427 filed by Campbell & CO Investment Adviser 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 45,789 shares
    Change vs previous 13F -1,777 shares

    0.1% of the 13F portfolio, value $1,327,423.

    13F-HR 0001140361-25-018894 filed by Campbell & CO Investment Adviser 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 47,566 shares
    Change vs previous 13F +47,566 shares

    0.14% of the 13F portfolio, value $1,766,126.

    13F-HR 0001140361-25-003669 filed by Campbell & CO Investment Adviser 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 0 shares
    Change vs previous 13F not available

    13F-HR 0001140361-24-046087 filed by Campbell & CO Investment Adviser 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.