ANCHOR CAPITAL ADVISORS LLC: ATMU position timeline

ANCHOR CAPITAL ADVISORS LLC held 17,916 ATMU shares at 2026-06-30 per its 13F-HR/A filed 2026-09-03.

the latest 13F is the newest step

1. period ended2026-06-30

   13F/A 17,916 shares

   Change vs previous 13F -109 shares

   0.03% of the 13F portfolio, value $913,537.

   13F-HR/A 0001172661-26-004338 filed by ANCHOR CAPITAL ADVISORS LLC
   Accepted 2026-09-03 13:38:16 UTC, ingested 2026-10-08 03:31:09 UTC

2. period ended2026-03-31

   13F 18,025 shares

   Change vs previous 13F -69 shares

   0.03% of the 13F portfolio, value $1,023,279.

   13F-HR 0001172661-26-001692 filed by ANCHOR CAPITAL ADVISORS LLC
   Filed 2026-05-12 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC

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

3. period ended2025-12-31

   13F 18,094 shares

   Change vs previous 13F +141 shares

   0.03% of the 13F portfolio, value $939,260.

   13F-HR 0001172661-26-000590 filed by ANCHOR CAPITAL ADVISORS LLC
   Filed 2026-02-10 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC

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

4. period ended2025-09-30

   13F 17,953 shares

   Change vs previous 13F -39,679 shares

   0.02% of the 13F portfolio, value $809,501.

   13F-HR 0001172661-25-004490 filed by ANCHOR CAPITAL ADVISORS LLC
   Filed 2025-10-30 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC

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

5. period ended2025-06-30

   13F 57,632 shares

   Change vs previous 13F -485 shares

   0.06% of the 13F portfolio, value $2,098,957.

   13F-HR 0001172661-25-002907 filed by ANCHOR CAPITAL ADVISORS LLC
   Filed 2025-08-06 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC

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

6. period ended2025-03-31

   13F 58,117 shares

   Change vs previous 13F -699 shares

   0.06% of the 13F portfolio, value $2,134,637.

   13F-HR 0001172661-25-001743 filed by ANCHOR CAPITAL ADVISORS LLC
   Filed 2025-05-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC

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

7. period ended2024-12-31

   13F 58,816 shares

   Change vs previous 13F -8,327 shares

   0.07% of the 13F portfolio, value $2,304,411.

   13F-HR 0001172661-25-000507 filed by ANCHOR CAPITAL ADVISORS LLC
   Filed 2025-02-05 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC

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

8. period ended2024-09-30

   13F 67,143 shares

   Change vs previous 13F not available

   0.07% of the 13F portfolio, value $2,519,877.

   13F-HR 0001172661-24-004426 filed by ANCHOR CAPITAL ADVISORS LLC
   Filed 2024-10-31 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC

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