Michael J. O'Sullivan
Senior Vice President, General Counsel and Secretary · 2 filings · Latest: Aug 12, 2026
BERKSHIRE HATHAWAY INC
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|
BRK.B | Michael J. O'Sullivan | Senior Vice President, General Counsel and Secretary | Aug 12, 2026 | Purchase | $512.44 | 488 | $250.1K | 1,151 | |
BRK.B | Michael J. O'Sullivan | Senior Vice President, General Counsel and Secretary | May 6, 2026 | Purchase | $467.44 | 536 | $250.5K | 663 | |
SNAP | Michael J. O'Sullivan | — | Jan 30, 2026 | Proposed Sale | $6.93 | 24,000 | $166.3K | — | |
SNAP | Michael J. O'Sullivan | — | Dec 31, 2025 | Proposed Sale | $8.07 | 24,000 | $193.7K | — | |
SNAP | O'Sullivan Michael J. | — | Dec 16, 2025 | Proposed Sale | $7.21 | 14,572 | $105.1K | — | |
SNAP | Michael J. O'Sullivan | — | Nov 28, 2025 | Proposed Sale | $7.61 | 24,000 | $182.6K | — | |
SNAP | O'Sullivan Michael J. | — | Nov 17, 2025 | Proposed Sale | $8.34 | 70,882 | $591.0K | — | |
SNAP | Michael J. O'Sullivan | — | Oct 31, 2025 | Proposed Sale | $7.80 | 24,000 | $187.2K | — | |
SNAP | Michael J. O'Sullivan | — | Sep 30, 2025 | Proposed Sale | $7.71 | 24,000 | $185.0K | — | |
SNAP | O'Sullivan Michael J. | — | Sep 16, 2025 | Proposed Sale | $7.56 | 14,290 | $108.0K | — | |
SNAP | Michael J. O'Sullivan | — | Aug 29, 2025 | Proposed Sale | $7.14 | 24,000 | $171.4K | — | |
SNAP | O'Sullivan Michael J. | — | Aug 18, 2025 | Proposed Sale | $7.18 | 68,705 | $493.1K | — | |
SNAP | Michael O'Sullivan | — | Jun 30, 2025 | Proposed Sale | $8.69 | 24,000 | $208.6K | — | |
SNAP | O'Sullivan Michael J. | — | Jun 16, 2025 | Proposed Sale | $8.04 | 14,297 | $115.0K | — | |
SNAP | Michael O'Sullivan | — | May 30, 2025 | Proposed Sale | $8.25 | 24,000 | $198.0K | — | |
SNAP | O'Sullivan Michael J. | — | May 16, 2025 | Proposed Sale | $8.59 | 68,845 | $591.7K | — | |
SNAP | Michael O'Sullivan | — | Apr 30, 2025 | Proposed Sale | $9.09 | 24,000 | $218.2K | — | |
SNAP | Michael O'Sullivan | — | Mar 31, 2025 | Proposed Sale | $8.71 | 24,000 | $209.0K | — | |
SNAP | O'Sullivan Michael J. | — | Mar 17, 2025 | Proposed Sale | $8.83 | 14,183 | $125.2K | — | |
SNAP | Michael O'Sullivan | — | Feb 28, 2025 | Proposed Sale | $10.25 | 24,000 | $246.0K | — |
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