Insider · CIK 0002139769
Charles C Chang
Files at BRK-B (BERKSHIRE HATHAWAY INC). First filing -, latest -.
In brief
Charles C Chang files SEC Form 4 as officer at BRK-B (BERKSHIRE HATHAWAY INC). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Charles C Chang has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 2 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 12, 2026 | BRK-B BERKSHIRE HATHAWAY INC | POpen-market purchase Class A Common Stockderivativeindirect: By LLC | +1 | $765,189.94 | $765k | 7 | Aug 13, 2026 |
| Aug 12, 2026 | BRK-B BERKSHIRE HATHAWAY INC | POpen-market purchase Class A Common Stockderivativeindirect: By LLC | +1 | $765,184.18 | $765k | 8 | Aug 13, 2026 |
Questions about Charles C Chang
Answered from the filings on this page, as of the latest one.
Is Charles C Chang buying or selling?
Charles C Chang has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Charles C Chang's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Charles C Chang has 0.
Where does Charles C Chang file Form 4?
Charles C Chang has filed Form 4 at BRK-B (BERKSHIRE HATHAWAY INC) as See Remarks. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.