Aufman Associates Inc: BRK-B position timeline

Aufman Associates Inc held 6,158 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

1. period ended2026-06-30

   13F 6,158 shares

   Change vs previous 13F -620 shares

   1.23% of the 13F portfolio, value $3,081,402.

   13F-HR 0001801573-26-000003 filed by Aufman Associates Inc
   Filed 2026-08-12 (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 6,778 shares

   Change vs previous 13F 0 shares

   1.59% of the 13F portfolio, value $3,248,018.

   13F-HR 0001801573-26-000002 filed by Aufman Associates Inc
   Filed 2026-05-15 (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 6,778 shares

   Change vs previous 13F -30 shares

   1.75% of the 13F portfolio, value $3,406,962.

   13F-HR 0001801573-26-000001 filed by Aufman Associates Inc
   Filed 2026-02-11 (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 6,808 shares

   Change vs previous 13F -124 shares

   1.93% of the 13F portfolio, value $3,422,654.

   13F-HR 0001801573-25-000007 filed by Aufman Associates Inc
   Filed 2025-11-12 (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 6,932 shares

   Change vs previous 13F -272 shares

   2.08% of the 13F portfolio, value $3,367,358.

   13F-HR 0001801573-25-000004 filed by Aufman Associates Inc
   Filed 2025-08-13 (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 7,204 shares

   Change vs previous 13F -244 shares

   2.64% of the 13F portfolio, value $3,836,706.

   13F-HR 0001801573-25-000002 filed by Aufman Associates Inc
   Filed 2025-05-14 (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 7,448 shares

   Change vs previous 13F -286 shares

   2.28% of the 13F portfolio, value $3,376,029.

   13F-HR 0001801573-25-000001 filed by Aufman Associates Inc
   Filed 2025-02-12 (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 7,734 shares

   Change vs previous 13F not available

   2.29% of the 13F portfolio, value $3,559,651.

   13F-HR 0001801573-24-000005 filed by Aufman Associates Inc
   Filed 2024-11-13 (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).