CHECK CAPITAL MANAGEMENT INC/CA: UNH position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CHECK CAPITAL MANAGEMENT INC/CA on UNH, newest first. How the timeline and the estimate are built.

CHECK CAPITAL MANAGEMENT INC/CA held 1,122 UNH shares at 2026-06-30 per its 13F-HR/A filed 2026-08-05.

the latest 13F is the newest step

period ended2026-06-30
13F/A 1,122 shares
Change vs previous 13F -110 shares
0.03% of the 13F portfolio, value $466,337.
13F-HR/A 0001032814-26-000006 filed by CHECK CAPITAL MANAGEMENT INC/CA
Filed 2026-08-05 (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).
period ended2026-03-31
13F 1,232 shares
Change vs previous 13F +513 shares
0.02% of the 13F portfolio, value $333,367.
13F-HR 0001032814-26-000004 filed by CHECK CAPITAL MANAGEMENT INC/CA
Filed 2026-05-04 (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).
period ended2025-12-31
13F 719 shares
Change vs previous 13F +4 shares
0.01% of the 13F portfolio, value $237,349.
13F-HR 0001032814-26-000001 filed by CHECK CAPITAL MANAGEMENT INC/CA
Filed 2026-02-06 (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).
period ended2025-09-30
13F 715 shares
Change vs previous 13F not available
0.02% of the 13F portfolio, value $246,889.
13F-HR 0001032814-25-000007 filed by CHECK CAPITAL MANAGEMENT INC/CA
Filed 2025-11-06 (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).