PUZO MICHAEL J: BRK-B position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PUZO MICHAEL J on BRK-B, newest first. How the timeline and the estimate are built.
PUZO MICHAEL J held 4,485 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-08-11.
the latest 13F is the newest step
- period ended2026-06-3013F 4,485 sharesChange vs previous 13F -105 shares
0.58% of the 13F portfolio, value $2,244,248.
13F-HR 0001053914-26-000005 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 4,590 sharesChange vs previous 13F +590 shares
0.64% of the 13F portfolio, value $2,199,528.
13F-HR 0001053914-26-000002 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 4,000 sharesChange vs previous 13F +1,395 shares
0.55% of the 13F portfolio, value $2,010,600.
13F-HR 0001053914-26-000001 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 2,605 sharesChange vs previous 13F -195 shares
0.36% of the 13F portfolio, value $1,309,637.
13F-HR 0001053914-25-000003 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 2,800 sharesChange vs previous 13F -715 shares
0.39% of the 13F portfolio, value $1,360,156.
13F-HR 0001314376-25-000002 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 3,515 sharesChange vs previous 13F +134 shares
0.54% of the 13F portfolio, value $1,872,018.
13F-HR 0001494234-25-000011 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 3,381 sharesChange vs previous 13F -274 shares
0.43% of the 13F portfolio, value $1,532,539.
13F-HR 0001494234-25-000004 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 3,655 sharesChange vs previous 13F not available
0.44% of the 13F portfolio, value $1,682,249.
13F-HR 0001053914-24-000004 filed by PUZO MICHAEL J
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).