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Disclosery

Engineers Gate Manager LP: AMPH position timeline

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

Engineers Gate Manager LP held 30,191 AMPH shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 30,191 shares
    Change vs previous 13F +30,191 shares

    0.01% of the 13F portfolio, value $609,254.

    13F-HR 0001620220-26-000007 filed by Engineers Gate Manager LP
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -53,348 shares

    13F-HR 0001620220-25-000010 filed by Engineers Gate Manager 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 ended2025-06-30
    13F 53,348 shares
    Change vs previous 13F +14,803 shares

    0.02% of the 13F portfolio, value $1,224,870.

    13F-HR 0001085146-25-005076 filed by Engineers Gate Manager LP
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-03-31
    13F 38,545 shares
    Change vs previous 13F +9,437 shares

    0.02% of the 13F portfolio, value $1,117,420.

    13F-HR 0001085146-25-003199 filed by Engineers Gate Manager LP
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2024-12-31
    13F 29,108 shares
    Change vs previous 13F +2,658 shares

    0.02% of the 13F portfolio, value $1,080,780.

    13F-HR 0001085146-25-001517 filed by Engineers Gate Manager LP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-09-30
    13F 26,450 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $1,283,619.

    13F-HR 0001085146-24-005911 filed by Engineers Gate Manager LP
    Filed (acceptance time not in the bulk data set), ingested

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