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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1067983	Berkshire Hathaway Inc	BRKB	Fire, Marine & Casualty Insurance (6331)	470813844

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1178923	B Meryl Witmer	138 Main Street, #202 East Rockaway NY 11518		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Class A Common Stock	Disposition	2025-03-03	2	$775,883.30	2	No	4	S	Indirect	Held by Spouse

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	Held by Spouse

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Class A Common Stock	3	Direct
Class A Common Stock	2	Indirect	Held by Trust
Class A Common Stock	2	Indirect	Held by Trust
Class A Common Stock	1	Indirect	Held by Trust
Class A Common Stock	1	Indirect	Held by Trust
Class A Common Stock	2	Indirect	Held by Trust
Class B Common Stock	1,000	Direct

Footnotes

These securities are directly owned by an individual retirement account of Mrs. Witmer's spouse.
These securities are directly owned by Andrew Witmer 2020 Trust, a trust for the benefit of one of Mrs. Witmer's sons for which Mrs. Witmer serves as trustee.
These securities are directly owned by Ian Witmer 2020 Trust, a trust for the benefit of one of Mrs. Witmer's sons for which Mrs. Witmer serves as trustee.
These securities are directly owned by Meryl B. Witmer 2012 Family Trust, a trust in which Mrs. Witmer's spouse is a beneficiary and serves as trustee.
These securities are directly owned by Meryl B. Witmer 2002 Trust, a trust in which Mrs. Witmer's spouse is a beneficiary and serves as trustee.
These securities are directly owned by Charles H. Witmer 2002 Trust, a trust in which Mrs. Witmer is a beneficiary and serves as trustee.