ANCHOR CAPITAL ADVISORS LLC: RIO position timeline

ANCHOR CAPITAL ADVISORS LLC held 216,922 RIO 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 216,922 shares

   Change vs previous 13F -17,381 shares

   0.58% of the 13F portfolio, value $20,592,404.

   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 234,303 shares

   Change vs previous 13F +25,908 shares

   0.62% of the 13F portfolio, value $21,858,155.

   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 208,395 shares

   Change vs previous 13F -3,326 shares

   0.48% of the 13F portfolio, value $16,677,845.

   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 211,721 shares

   Change vs previous 13F +58,213 shares

   0.4% of the 13F portfolio, value $13,975,699.

   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 153,508 shares

   Change vs previous 13F -4,426 shares

   0.26% of the 13F portfolio, value $8,954,116.

   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 157,934 shares

   Change vs previous 13F +4,387 shares

   0.28% of the 13F portfolio, value $9,488,655.

   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 153,547 shares

   Change vs previous 13F +114,483 shares

   0.26% of the 13F portfolio, value $9,030,102.

   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 39,064 shares

   Change vs previous 13F not available

   0.07% of the 13F portfolio, value $2,780,185.

   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).