REIK & CO., LLC: BRK-B position timeline

REIK & CO., LLC held 72,471 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-10.

the latest 13F is the newest step

1. period ended2026-06-30

   13F 72,471 shares

   Change vs previous 13F -460 shares

   9.45% of the 13F portfolio, value $36,263,764.

   13F-HR 0001388028-26-000003 filed by REIK & CO., LLC
   Filed 2026-08-10 (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 72,931 shares

   Change vs previous 13F -737 shares

   9.64% of the 13F portfolio, value $34,948,535.

   13F-HR 0001388028-26-000002 filed by REIK & CO., LLC
   Filed 2026-05-05 (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 73,668 shares

   Change vs previous 13F -1,737 shares

   10.19% of the 13F portfolio, value $37,029,250.

   13F-HR 0001388028-26-000001 filed by REIK & CO., LLC
   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 75,405 shares

   Change vs previous 13F -874 shares

   9.74% of the 13F portfolio, value $37,909,110.

   13F-HR 0001388028-25-000006 filed by REIK & CO., LLC
   Filed 2025-11-04 (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 76,279 shares

   Change vs previous 13F -3,077 shares

   9.25% of the 13F portfolio, value $37,054,050.

   13F-HR 0001388028-25-000003 filed by REIK & CO., LLC
   Filed 2025-08-07 (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 79,356 shares

   Change vs previous 13F -168 shares

   9.84% of the 13F portfolio, value $42,263,418.

   13F-HR 0001388028-25-000002 filed by REIK & CO., LLC
   Filed 2025-05-06 (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 79,524 shares

   Change vs previous 13F -632 shares

   8.66% of the 13F portfolio, value $36,046,638.

   13F-HR 0001388028-25-000001 filed by REIK & CO., LLC
   Filed 2025-01-29 (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 80,156 shares

   Change vs previous 13F not available

   8.77% of the 13F portfolio, value $36,892,600.

   13F-HR 0001388028-24-000004 filed by REIK & CO., 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).