Insider Profile · SEC Form 4 Activity · Trailing 90 Days
O'sullivan Michael J.
Over the trailing 90 days, O'sullivan Michael J. (Other at BERKSHIRE HATHAWAY INC) bought $251K of stock in BRK.A, per 2 SEC Form 4 transactions.
- Role
- Other
- Companies
- BRK.A
- Window
- Trailing 90 days · 2 transactions · CIK 1713777
- Net activity
- +$251K ($251K bought · $0 sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| BRK.A | BERKSHIRE HATHAWAY INC | 2 | $251K | — | $251K |
Transactions (2)
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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