O'Brien Greene & Co. Inc: BRK-B position timeline

O'Brien Greene & Co. Inc held 27,856 BRK-B 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 27,856 shares

   Change vs previous 13F +22 shares

   3.85% of the 13F portfolio, value $13,939,034.

   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 27,834 shares

   Change vs previous 13F -85 shares

   3.78% of the 13F portfolio, value $13,338,216.

   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 27,919 shares

   Change vs previous 13F -390 shares

   4.17% of the 13F portfolio, value $14,033,656.

   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 28,309 shares

   Change vs previous 13F -503 shares

   4.38% of the 13F portfolio, value $14,232,238.

   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 28,812 shares

   Change vs previous 13F -760 shares

   4.58% of the 13F portfolio, value $13,996,171.

   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 29,572 shares

   Change vs previous 13F -1,328 shares

   5.28% of the 13F portfolio, value $15,749,637.

   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 30,900 shares

   Change vs previous 13F -697 shares

   4.55% of the 13F portfolio, value $14,006,506.

   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 31,597 shares

   Change vs previous 13F not available

   4.53% of the 13F portfolio, value $14,542,992.

   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).