Skip to content
Disclosery

Riverwater Partners LLC: ATMU position timeline

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

Riverwater Partners LLC held 43,911 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 43,911 shares
    Change vs previous 13F -9,234 shares

    0.66% of the 13F portfolio, value $2,239,022.

    13F-HR 0001941040-26-000624 filed by Riverwater Partners 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 53,145 shares
    Change vs previous 13F +2,388 shares

    1.01% of the 13F portfolio, value $3,017,042.

    13F-HR 0001941040-26-000302 filed by Riverwater Partners 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 50,757 shares
    Change vs previous 13F 0 shares

    1.02% of the 13F portfolio, value $2,634,796.

    13F-HR 0001941040-26-000105 filed by Riverwater Partners 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 50,757 shares
    Change vs previous 13F 0 shares

    0.95% of the 13F portfolio, value $2,288,633.

    13F-HR 0001941040-25-000585 filed by Riverwater Partners 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 50,757 shares
    Change vs previous 13F -7 shares

    0.87% of the 13F portfolio, value $1,848,570.

    13F-HR 0001941040-25-000393 filed by Riverwater Partners 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 50,764 shares
    Change vs previous 13F +5 shares

    0.96% of the 13F portfolio, value $1,864,562.

    13F-HR 0001941040-25-000222 filed by Riverwater Partners 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 50,759 shares
    Change vs previous 13F +59 shares

    0.97% of the 13F portfolio, value $1,988,738.

    13F-HR 0001941040-25-000144 filed by Riverwater Partners 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 50,700 shares
    Change vs previous 13F not available

    0.94% of the 13F portfolio, value $1,884,519.

    13F-HR 0001941040-24-000443 filed by Riverwater Partners LLC
    Filed (acceptance time not in the bulk data set), ingested

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