MUHLENKAMP & CO INC: BRK-B position timeline

MUHLENKAMP & CO INC held 38,495 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-18.

the latest 13F is the newest step

1. period ended2026-06-30

   13F 38,495 shares

   Change vs previous 13F +144 shares

   5.58% of the 13F portfolio, value $19,262,513.

   13F-HR 0001133219-26-000003 filed by MUHLENKAMP & CO INC
   Filed 2026-08-18 (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 38,351 shares

   Change vs previous 13F -60 shares

   4.84% of the 13F portfolio, value $18,377,799.

   13F-HR 0001133219-26-000002 filed by MUHLENKAMP & 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 38,411 shares

   Change vs previous 13F +31 shares

   5.19% of the 13F portfolio, value $19,307,289.

   13F-HR 0001133219-26-000001 filed by MUHLENKAMP & CO INC
   Filed 2026-02-04 (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 38,380 shares

   Change vs previous 13F +29 shares

   5.24% of the 13F portfolio, value $19,295,362.

   13F-HR 0001133219-25-000006 filed by MUHLENKAMP & CO INC
   Filed 2025-11-07 (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 38,351 shares

   Change vs previous 13F +213 shares

   5.81% of the 13F portfolio, value $18,629,959.

   13F-HR 0001133219-25-000005 filed by MUHLENKAMP & CO INC
   Filed 2025-07-24 (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 38,138 shares

   Change vs previous 13F -34 shares

   6.65% of the 13F portfolio, value $20,311,749.

   13F-HR 0001133219-25-000004 filed by MUHLENKAMP & CO INC
   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 38,172 shares

   Change vs previous 13F +48 shares

   5.25% of the 13F portfolio, value $17,302,785.

   13F-HR 0001133219-25-000001 filed by MUHLENKAMP & CO INC
   Filed 2025-02-13 (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 38,124 shares

   Change vs previous 13F not available

   5.38% of the 13F portfolio, value $17,547,136.

   13F-HR 0001133219-24-000004 filed by MUHLENKAMP & CO INC
   Filed 2024-11-12 (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).