BRK-B Filing
3Filing Date: May 5, 2026
BERKSHIRE HATHAWAY INC (BRK-B) · Initial Holdings (Form 3) SEC Filing
Initial Statement of Beneficial Ownership
descriptionView SEC Filing
ACC: 0001193125-26-206348open_in_new
Total Value$0
Trades1
Insiders1
Transaction Details
O'Sullivan Michael J.
See Remarks·Indirect · By Trust
Class B Common Stock
Shares0
Price-
Total Value$0
Shares Owned After127
Footnotes ▸
Shares held by a living trust of which the reporting person is trustee.
Post-Transaction Holdings
O'Sullivan Michael J.
| Security | Shares | Change |
|---|---|---|
| Class B Common Stock | 127 | - |
Original SEC Filing Textexpand_more
=== SEC Form 3 — Statement of Changes in Beneficial Ownership ===
Document Type: 3
Period of Report: 2026-05-03
--- Issuer ---
Name: BERKSHIRE HATHAWAY INC (BRK.B)
CIK: 0001067983
--- Reporting Owner ---
Name: O'Sullivan Michael J.
CIK: 0001713777
Role: Officer (See Remarks)
--- Holdings ---
[Holding #1]
Security: Class B Common Stock
Ownership: I (Indirect)
Footnotes:
[F1] Shares held by a living trust of which the reporting person is trustee.
--- Footnotes (Complete Index) ---
F1: Shares held by a living trust of which the reporting person is trustee.
--- Signature ---
/s/ /s/ Michael O'Sullivan (2026-05-05)