Berkshire Hathaway (BRK) officer adds 536 Class B shares through living trust

Q: At what prices did O'Sullivan’s trust purchase Berkshire Hathaway (BRK) Class B shares?

The trust bought 53 shares at $470.22 per share and 483 shares at a weighted average price of $467.13 per share . The larger block was executed in multiple trades between $467.07 and $467.20 per share, according to the filing footnote.

Q: How are Michael J. O'Sullivan’s Berkshire Hathaway (BRK) shares held?

The Form 4 states the shares are held indirectly by a living trust of which Michael J. O'Sullivan is trustee. This means the reported Class B shares are owned through the trust structure rather than directly in his own name.

Q: What type of transactions were reported for Berkshire Hathaway (BRK) in this Form 4?

The Form 4 reports two open-market purchases of Class B Common Stock . Both transactions use code “P,” indicating purchases in the open market or a private transaction, and are classified as indirect because the shares are held through a living trust.

Q: Does the Berkshire Hathaway (BRK) Form 4 mention multiple trade prices for O'Sullivan’s purchase?

Yes. For the 483-share block, the Form 4 notes a weighted average price of $467.13 and states those shares were bought in multiple trades at prices ranging from $467.07 to $467.20 per share, with detailed trade data available on request.

Q: Are Michael J. O'Sullivan’s Berkshire Hathaway (BRK) holdings direct or indirect after these trades?

The filing classifies these holdings as indirect , with ownership coded as “By Trust.” It explains that the shares are held by a living trust for which O'Sullivan acts as trustee, rather than being recorded as directly owned shares.

Filing Impact

(Moderate)

Filing Sentiment

(Positive)

Form Type

Rhea-AI Filing Summary

Berkshire Hathaway officer Michael J. O'Sullivan reported two indirect open-market purchases of Class B Common Stock through a living trust of which he is trustee. The trust bought a total of 536 shares, including 53 shares at $470.22 per share and 483 shares at a weighted average price of $467.13 per share, with those shares acquired in multiple trades between $467.07 and $467.20 per share.

Insider Trade Summary

Net Buyer: 536 shares ($250,545)

Net Buy 2 txns

Insider O'Sullivan Michael J.

Role See Remarks

Bought 536 shs ($251K)

Type	Security	Shares	Price	Value
Purchase	Class B Common Stock	483	$467.13	$226K
Purchase	Class B Common Stock	53	$470.22	$25K

Holdings After Transaction: Class B Common Stock — 610 shares (Indirect, By Trust)

Footnotes (1)

The reported price in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $ 467.07 to $ 467.20 per share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Shares held by a living trust of which the reporting person is trustee.

Key Figures

Total shares purchased: 536 shares First trade price: $470.22 per share Weighted average price: $467.13 per share +3 more

6 metrics

Total shares purchased 536 shares Net Class B shares bought indirectly via trust

First trade price $470.22 per share 53 Class B shares open-market purchase

Weighted average price $467.13 per share 483 Class B shares bought in multiple trades

Price range on multi-trade block $467.07–$467.20 per share Range for 483-share purchase block

Indirect holdings after one line 663 shares Class B shares shown following one purchase, indirect by trust

Indirect holdings after other line 610 shares Class B shares shown following other purchase, indirect by trust

Key Terms

open-market purchase, weighted average price, living trust, indirect, +1 more

5 terms

open-market purchase financial

"transaction_action": "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

weighted average price financial

"The reported price in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

living trust financial

"Shares held by a living trust of which the reporting person is trustee."

indirect financial

""direct_or_indirect": "I", "ownership_type": "indirect""

Class B Common Stock financial

""security_title": "Class B Common Stock""

A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.

Form 4 Insider Transactions: What Each Field Means →

05/06/2026 - 07:04 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

O'Sullivan Michael J.

(Last)

(First)

(Middle)

3555 FARNAM STREET

(Street)

OMAHA

NEBRASKA

68131

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BERKSHIRE HATHAWAY INC [ BRK.B ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	See Remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class B Common Stock	05/06/2026		P		483	A	$467.13⁽¹⁾	610	I	By Trust⁽²⁾
Class B Common Stock	05/06/2026		P		53	A	$470.22	663	I	By Trust⁽²⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The reported price in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $ 467.07 to $ 467.20 per share, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

2. Shares held by a living trust of which the reporting person is trustee.

Remarks:

Senior Vice President, General Counsel and Secretary

	/s/ Michael O'Sullivan	05/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

How many Berkshire Hathaway (BRK) Class B shares did Michael J. O'Sullivan buy?

Michael J. O'Sullivan’s associated living trust bought a total of 536 Berkshire Hathaway Class B shares. The Form 4 shows two separate open-market purchases, one for 53 shares and another for 483 shares, all reported as indirect holdings through the trust.

At what prices did O'Sullivan’s trust purchase Berkshire Hathaway (BRK) Class B shares?

The trust bought 53 shares at $470.22 per share and 483 shares at a weighted average price of $467.13 per share. The larger block was executed in multiple trades between $467.07 and $467.20 per share, according to the filing footnote.

How are Michael J. O'Sullivan’s Berkshire Hathaway (BRK) shares held?

The Form 4 states the shares are held indirectly by a living trust of which Michael J. O'Sullivan is trustee. This means the reported Class B shares are owned through the trust structure rather than directly in his own name.

What type of transactions were reported for Berkshire Hathaway (BRK) in this Form 4?

The Form 4 reports two open-market purchases of Class B Common Stock. Both transactions use code “P,” indicating purchases in the open market or a private transaction, and are classified as indirect because the shares are held through a living trust.

Does the Berkshire Hathaway (BRK) Form 4 mention multiple trade prices for O'Sullivan’s purchase?

Yes. For the 483-share block, the Form 4 notes a weighted average price of $467.13 and states those shares were bought in multiple trades at prices ranging from $467.07 to $467.20 per share, with detailed trade data available on request.

Are Michael J. O'Sullivan’s Berkshire Hathaway (BRK) holdings direct or indirect after these trades?

The filing classifies these holdings as indirect, with ownership coded as “By Trust.” It explains that the shares are held by a living trust for which O'Sullivan acts as trustee, rather than being recorded as directly owned shares.