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RHUMBLINE ADVISERS: AMPH position timeline

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

RHUMBLINE ADVISERS held 80,454 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 80,454 shares
    Change vs previous 13F -3,267 shares

    <0.01% of the 13F portfolio, value $1,623,544.

    13F-HR 0001115418-26-000005 filed by RHUMBLINE ADVISERS
    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 83,721 shares
    Change vs previous 13F +1,331 shares

    <0.01% of the 13F portfolio, value $1,640,078.

    13F-HR 0001115418-26-000003 filed by RHUMBLINE ADVISERS
    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 82,390 shares
    Change vs previous 13F -7,739 shares

    <0.01% of the 13F portfolio, value $2,206,388.

    13F-HR 0001115418-26-000002 filed by RHUMBLINE ADVISERS
    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 90,129 shares
    Change vs previous 13F -5,158 shares

    <0.01% of the 13F portfolio, value $2,401,916.

    13F-HR 0001115418-25-000021 filed by RHUMBLINE ADVISERS
    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 95,287 shares
    Change vs previous 13F +6,329 shares

    <0.01% of the 13F portfolio, value $2,187,770.

    13F-HR 0001115418-25-000017 filed by RHUMBLINE ADVISERS
    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/A 88,958 shares
    Change vs previous 13F +1,631 shares

    <0.01% of the 13F portfolio, value $2,578,875.

    13F-HR/A 0001115418-25-000005 filed by RHUMBLINE ADVISERS
    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/A 87,327 shares
    Change vs previous 13F +1,213 shares

    <0.01% of the 13F portfolio, value $3,242,436.

    13F-HR/A 0001115418-25-000006 filed by RHUMBLINE ADVISERS
    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 86,114 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $4,179,094.

    13F-HR 0001115418-24-000011 filed by RHUMBLINE ADVISERS
    Filed (acceptance time not in the bulk data set), ingested

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