B
BRK.B · Berkshire Hathaway
NYSE·Financials
Warren Buffett conglomerate: GEICO, BNSF Railway, See's Candies, plus a public equity portfolio.
Recent insider trades
Latest Form 4 filings for BRK.B
Congressional trades
STOCK Act disclosures for BRK.B
See full BRK.B signal history
Full insider history
Every Form 4 filing for BRK.B going back years — not just the latest 5.
Real-time alerts
Get pinged the moment an insider or a member of Congress files a trade for BRK.B.
AI explain
Claude analyzes each trade's context: who, why, and what to watch.
Dark pool, options, 13F
Premium signals from dark prints, options flow, and quarterly institutional positions.