Key facts
- This page summarizes Charlotte Guyman's Form 4 filing for BERKSHIRE HATHAWAY INC (BRK.A).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 05 Nov 2025, 17:14.
Charlotte Guyman - 03 Nov 2025 Form 4 Insider Report for BERKSHIRE HATHAWAY INC (BRK.A)
- Reporting relationship
- Director
- Issuer ticker
- BRK.A
- Reported as of
- 03 Nov 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 05 Nov 2025, 17:14:22 UTC
- Prior SEC filing
- 21 Mar 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Charlotte Guyman
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Charlotte Guyman filed Form 4 for BERKSHIRE HATHAWAY INC (BRK.A) on 05 Nov 2025.
Change
- Previous filing in this sequence was filed on 21 Mar 2025.
- Current net transaction value: $0.
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 0001269365
Primary reporting owner
GUYMAN CHARLOTTE
- Relationship
- Director
- Address
- 1127 EVERGREEN POINT RD, MEDINA
- Signature
- /s/ Charlotte Guyman
- Signature date
- 05 Nov 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BRK.A
transaction
Class B Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +1,500
- Change %
- +63%
- Price
- $0.000000*
- Shares after
- 3,872
- Date
- 03 Nov 2025
- Ownership
- Direct
BRK.A
transaction
Class B Common Stock
Gift
- Transaction value
- Shares
- -410
- Change %
- -11%
- Price
- $0.000000*
- Shares after
- 3,462
- Date
- 03 Nov 2025
- Ownership
- Direct
- Footnotes
- F1
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BRK.A
transaction
Derivative
Class A Common Stock
Conversion of derivative security
- Transaction value
- Shares
- -1
- Change %
- -1.8%
- Price
- Shares after
- 54
- Date
- 03 Nov 2025
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- Exercise price
- Footnotes
- F2, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
The reported transaction consists of gifts from Charlotte Guyman of 82 shares each of Class B common Stock to five charitable organizations.
Footnote F2
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 F3
Not applicable.