Key facts
- This page summarizes Charles C. Chang's Form 4 filing for BERKSHIRE HATHAWAY INC (BRK.A).
- 2 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 13 Aug 2026, 17:00.
Charles C. Chang - 12 Aug 2026 Form 4 Insider Report for BERKSHIRE HATHAWAY INC (BRK.A)
- Reporting relationship
- Senior Vice President and Chief Financial Officer
- Issuer ticker
- BRK.A
- Reported as of
- 12 Aug 2026
- Net transaction value
- +$1,530,374
- SEC form
- 4
- Accepted by SEC
- 13 Aug 2026, 17:00:54 UTC
- Prior SEC filing
- 10 Jun 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Charles C. Chang
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Charles C. Chang filed Form 4 for BERKSHIRE HATHAWAY INC (BRK.A) on 13 Aug 2026.
Change
- Previous filing in this sequence was filed on 10 Jun 2026.
- Current net transaction value: +$1,530,374.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002139769
Primary reporting owner
Chang Charles C
- Relationship
- Senior Vice President and Chief Financial Officer
- Address
- 3555 FARNAM STREET, OMAHA
- Signature
- /s/ Charles C. Chang
- Signature date
- 13 Aug 2026
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BRK.A
transaction
Derivative
Class A Common Stock
Purchase
- Transaction value
- $765,190
- Shares
- +1
- Change %
- +17%
- Price
- $765189.94
- Shares after
- 7
- Date
- 12 Aug 2026
- Ownership
- By LLC
- Underlying class
- See footnote
- Underlying amount
- Exercise price
- Footnotes
- F1, F2
BRK.A
transaction
Derivative
Class A Common Stock
Purchase
- Transaction value
- $765,184
- Shares
- +1
- Change %
- +14%
- Price
- $765184.18
- Shares after
- 8
- Date
- 12 Aug 2026
- Ownership
- By LLC
- Underlying class
- See footnote
- Underlying amount
- Exercise price
- Footnotes
- F1, F2
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock.
Footnote F2
Shares held by a limited liability company controlled by the reporting person and the reporting person's spouse.
SEC remarks
Senior Vice President and Chief Financial Officer