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O'Sullivan Michael J.
InsiderCIK 0001713777
Profile
- Filings
- 9
- Buy transactions
- 2
- Sell transactions
- 7
- Companies
- 2
- Active
- 2025–2026
O'Sullivan Michael J. has filed 9 reports across 2 companies, totaling $2.2M in disclosed volume. Sales ($2.0M) outpace purchases ($250.5K). Insider sales are common for diversification and should be read in context. All data sourced from SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
9 loaded
| May 6 | BRK.B BERKSHIRE HATHAWAY INC | O'Sullivan Michael J. | Insider | Buy | $250.5K |
| May 5 | BRK.B BERKSHIRE HATHAWAY INC | O'Sullivan Michael J. | Insider | Other | $0 |
| Nov 19 | SNAP Snap Inc | O'Sullivan Michael J. | Insider | Sell | $591.0K |
| Nov 4 | SNAP Snap Inc | O'Sullivan Michael J. | Insider | Sell | $185.6K |
| Oct 2 | SNAP Snap Inc | O'Sullivan Michael J. | Insider | Sell | $188.5K |
| Sep 18 | SNAP Snap Inc | O'Sullivan Michael J. | Insider | Sell | $108.3K |
| Aug 29 | SNAP Snap Inc | O'Sullivan Michael J. | Insider | Sell | $171.9K |
| Aug 20 | SNAP Snap Inc | O'Sullivan Michael J. | Insider | Sell | $493.1K |
| Aug 4 | SNAP Snap Inc | O'Sullivan Michael J. | Insider | Sell | $229.6K |
9 filings