Skip to content
Disclosery

O'SHAUGHNESSY ASSET MANAGEMENT, LLC: AMPH position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of O'SHAUGHNESSY ASSET MANAGEMENT, LLC on AMPH, newest first. How the timeline and the estimate are built.

O'SHAUGHNESSY ASSET MANAGEMENT, LLC held 159,427 AMPH shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 159,427 shares
    Change vs previous 13F +55,498 shares

    0.01% of the 13F portfolio, value $3,217,237.

    13F-HR 0001423442-26-000003 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 103,929 shares
    Change vs previous 13F +16,746 shares

    0.01% of the 13F portfolio, value $2,035,969.

    13F-HR 0001423442-26-000002 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 87,183 shares
    Change vs previous 13F +18,125 shares

    0.01% of the 13F portfolio, value $2,334,761.

    13F-HR 0001423442-26-000001 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 69,058 shares
    Change vs previous 13F +28,749 shares

    0.01% of the 13F portfolio, value $1,840,396.

    13F-HR 0001423442-25-000009 filed by O'SHAUGHNESSY ASSET MANAGEMENT, 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 40,309 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $925,495.

    13F-HR 0001423442-25-000008 filed by O'SHAUGHNESSY ASSET MANAGEMENT, LLC
    Filed (acceptance time not in the bulk data set), ingested

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