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Disclosery

Quantbot Technologies LP: AMPH position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Quantbot Technologies LP on AMPH, newest first. How the timeline and the estimate are built.

Quantbot Technologies LP held 1,924 AMPH shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,924 shares
    Change vs previous 13F +1,924 shares

    <0.01% of the 13F portfolio, value $38,826.

    13F-HR 0001512991-26-000004 filed by Quantbot Technologies LP
    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 -14,515 shares

    13F-HR 0001512991-26-000003 filed by Quantbot Technologies LP
    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 14,515 shares
    Change vs previous 13F -15,248 shares

    0.01% of the 13F portfolio, value $388,712.

    13F-HR 0001512991-26-000002 filed by Quantbot Technologies LP
    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 29,763 shares
    Change vs previous 13F -31,192 shares

    0.02% of the 13F portfolio, value $793,184.

    13F-HR 0001512991-25-000031 filed by Quantbot Technologies LP
    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 60,955 shares
    Change vs previous 13F +39,846 shares

    0.04% of the 13F portfolio, value $1,399,527.

    13F-HR 0001512991-25-000030 filed by Quantbot Technologies LP
    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 21,109 shares
    Change vs previous 13F -4,345 shares

    0.02% of the 13F portfolio, value $611,950.

    13F-HR 0001512991-25-000029 filed by Quantbot Technologies LP
    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 25,454 shares
    Change vs previous 13F +25,454 shares

    0.03% of the 13F portfolio, value $945,107.

    13F-HR 0001512991-25-000027 filed by Quantbot Technologies LP
    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 0001512991-24-000006 filed by Quantbot Technologies LP
    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.