O'Brien Greene & Co. Inc: MRK position timeline

O'Brien Greene & Co. Inc held 3,944 MRK shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

1. period ended2026-06-30

   13F 3,944 shares

   Change vs previous 13F -586 shares

   0.14% of the 13F portfolio, value $506,804.

   13F-HR 0001768635-26-000009 filed by O'Brien Greene & Co. Inc
   Filed 2026-08-06 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC

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

2. period ended2026-03-31

   13F 4,530 shares

   Change vs previous 13F -138 shares

   0.15% of the 13F portfolio, value $544,914.

   13F-HR 0001768635-26-000002 filed by O'Brien Greene & Co. Inc
   Filed 2026-05-06 (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 4,668 shares

   Change vs previous 13F +186 shares

   0.15% of the 13F portfolio, value $491,354.

   13F-HR 0001768635-26-000001 filed by O'Brien Greene & Co. Inc
   Filed 2026-02-05 (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 4,482 shares

   Change vs previous 13F -179 shares

   0.12% of the 13F portfolio, value $376,174.

   13F-HR 0001768635-25-000008 filed by O'Brien Greene & Co. Inc
   Filed 2025-11-10 (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 4,661 shares

   Change vs previous 13F 0 shares

   0.12% of the 13F portfolio, value $368,965.

   13F-HR 0001768635-25-000005 filed by O'Brien Greene & Co. Inc
   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 4,661 shares

   Change vs previous 13F 0 shares

   0.14% of the 13F portfolio, value $418,371.

   13F-HR 0001768635-25-000003 filed by O'Brien Greene & Co. Inc
   Filed 2025-05-12 (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 4,661 shares

   Change vs previous 13F -334 shares

   0.15% of the 13F portfolio, value $463,676.

   13F-HR 0001768635-25-000001 filed by O'Brien Greene & Co. Inc
   Filed 2025-02-03 (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 4,995 shares

   Change vs previous 13F not available

   0.18% of the 13F portfolio, value $567,232.

   13F-HR 0001768635-24-000010 filed by O'Brien Greene & Co. Inc
   Filed 2024-11-15 (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).