O'Sullivan Michael J.
See Remarks
O'Sullivan Michael J. has filed 2 SEC Form 4 filings (5 transaction rows) across 1 company, with disclosures dating back to 2026. 2 of those filings fall inside the rolling window. Most recent filing: Aug 13, 2026.
Companies traded
- BRK.B
Insider Buying
$501K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window