KORNITZER CAPITAL MANAGEMENT INC /KS: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of KORNITZER CAPITAL MANAGEMENT INC /KS on BRK-B, newest first. How the timeline and the estimate are built.

KORNITZER CAPITAL MANAGEMENT INC /KS held 8,305 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

period ended2026-06-30
13F 8,305 shares
Change vs previous 13F +1,110 shares
0.09% of the 13F portfolio, value $4,155,739.
13F-HR 0000898358-26-000007 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
Filed 2026-07-31 (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 7,195 shares
Change vs previous 13F -830 shares
0.07% of the 13F portfolio, value $3,447,844.
13F-HR 0000898358-26-000005 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
Filed 2026-04-30 (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 8,025 shares
Change vs previous 13F +25 shares
0.08% of the 13F portfolio, value $4,033,766.
13F-HR 0000898358-26-000003 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
Filed 2026-02-02 (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 8,000 shares
Change vs previous 13F -1,184 shares
0.08% of the 13F portfolio, value $4,021,920.
13F-HR 0000898358-25-000013 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
Filed 2025-10-31 (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).
period ended2025-06-30
13F 9,184 shares
Change vs previous 13F +576 shares
0.09% of the 13F portfolio, value $4,461,312.
13F-HR 0000898358-25-000010 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
Filed 2025-07-31 (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).
period ended2025-03-31
13F 8,608 shares
Change vs previous 13F +706 shares
0.09% of the 13F portfolio, value $4,584,449.
13F-HR 0000898358-25-000007 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
Filed 2025-05-02 (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).
period ended2024-12-31
13F 7,902 shares
Change vs previous 13F +2,459 shares
0.07% of the 13F portfolio, value $3,581,819.
13F-HR 0000898358-25-000005 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
Filed 2025-01-31 (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).
period ended2024-09-30
13F 5,443 shares
Change vs previous 13F not available
0.05% of the 13F portfolio, value $2,505,195.
13F-HR 0000898358-24-000009 filed by KORNITZER CAPITAL MANAGEMENT INC /KS
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).