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RHUMBLINE ADVISERS: AMPY position timeline

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

RHUMBLINE ADVISERS held 127,321 AMPY 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 127,321 shares
    Change vs previous 13F +125,545 shares

    <0.01% of the 13F portfolio, value $506,732.

    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 1,776 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $11,082.

    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 1,776 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $8,116.

    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 1,776 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $9,324.

    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 1,776 shares
    Change vs previous 13F -112,385 shares

    <0.01% of the 13F portfolio, value $5,683.

    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 114,161 shares
    Change vs previous 13F +12,131 shares

    <0.01% of the 13F portfolio, value $426,955.

    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 102,030 shares
    Change vs previous 13F +3,580 shares

    <0.01% of the 13F portfolio, value $612,180.

    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 98,450 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $642,871.

    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).