stock
BRK.A · Berkshire Hathaway Inc. Common Stock
What Berkshire Hathaway Inc. Common Stock reports to the SEC, read from its filings.
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The live BRK.A price and today's change.
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Thirty days of daily bars, with signal levels drawn on them.
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The latest signal group Nakagai's scanner recorded on BRK.A.
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Gamma exposure levels from the options market.
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Trend, momentum and volatility gauges per timeframe.
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No company filing on record for BRK.A.
Company filings
No 8-K, offering or 5% stake filings in the last year.
Insiders, politicians and funds
Insider trades, last 90 days
Jain Ajit
Vice Chairman, Director
Sale$19,972,776Sep 29, 5:16 PM ET
Politician trades, last 90 days
No politician trades filed in the last 90 days.
Funds
- Gardner Russo & Quinn
Period Tue 30 Jun 2026
12.0%Trimmed - Semper Augustus
Period Tue 30 Jun 2026
10.2%Added - Tweedy Browne
Period Tue 30 Jun 2026
8.2%Same - Markel Group
Period Tue 30 Jun 2026
6.4%Same - Davis Selected Advisers
Period Tue 30 Jun 2026
2.8%Trimmed
News
Stories that named BRK.A, and the market events around them.
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Recent signals
Signals open up here once a member has posted about BRK.A.
Signals are informational.
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nakagai
Signals on BRK.A come from a rule, not a model.
Nakagai’s scanner records a signal the moment a strategy’s rule matches on the bars. Members read those signals on their own desk, where an agent journals the tape and briefs them in plain English.
Members post on the BRK.A board