Insider tradingForm 4

BERKSHIRE HATHAWAY INC (BRK-B) Insider Trading

2 open-market trades reported since Aug 13, 2026: 1 purchases worth $250K and 1 sales worth $20.0M.

By insider

Insider	Role	Buys	Bought	Sells	Sold	Latest
Ajit Jain	Chair	0	$0	1	$20.0M	Sep 29, 2026
Michael J. O'Sullivan	See Remarks	1	$250K	0	$0	Aug 13, 2026

BRK-B insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	3 mo. after	Filing
Sep 29	Sep 28	Ajit JainChair	Chair (ind.)	▼ SELL	39,700	503.09	$20.0M	−37%		Form 4 ↗
Aug 13	Aug 12	Michael J. O'SullivanSee Remarks	See Remarks (ind.)	▲ BUY	488	512.44	$250K	+74%		Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings