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Ancora Advisors LLC: ATMU position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Ancora Advisors LLC on ATMU, newest first. How the timeline and the estimate are built.

Ancora Advisors LLC held 138,859 ATMU 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 138,859 shares
    Change vs previous 13F -64,430 shares

    0.14% of the 13F portfolio, value $7,080,420.

    13F-HR 0001446114-26-000012 filed by Ancora Advisors 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 203,289 shares
    Change vs previous 13F -172,326 shares

    0.25% of the 13F portfolio, value $11,540,717.

    13F-HR 0001446114-26-000009 filed by Ancora Advisors 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 375,615 shares
    Change vs previous 13F -70 shares

    0.4% of the 13F portfolio, value $19,498,175.

    13F-HR 0001446114-26-000006 filed by Ancora Advisors 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 375,685 shares
    Change vs previous 13F +1,640 shares

    0.34% of the 13F portfolio, value $16,939,636.

    13F-HR 0001446114-25-000048 filed by Ancora Advisors 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 374,045 shares
    Change vs previous 13F +3,700 shares

    0.28% of the 13F portfolio, value $13,622,719.

    13F-HR 0001446114-25-000037 filed by Ancora Advisors LLC
    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 370,345 shares
    Change vs previous 13F +7,860 shares

    0.3% of the 13F portfolio, value $13,602,772.

    13F-HR 0001446114-25-000023 filed by Ancora Advisors LLC
    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 362,485 shares
    Change vs previous 13F -12,810 shares

    0.32% of the 13F portfolio, value $14,202,162.

    13F-HR 0001446114-25-000009 filed by Ancora Advisors LLC
    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 375,295 shares
    Change vs previous 13F not available

    0.32% of the 13F portfolio, value $14,084,821.

    13F-HR 0001446114-24-000029 filed by Ancora Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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