O'Sullivan Michael J.
Berkshire Hathaway Class B (2020 Irrev Trust FBO Grandchildren) · See Remarks
O'Sullivan Michael J. is listed in filings as See Remarks at Berkshire Hathaway Class B (2020 Irrev Trust FBO Grandchildren). This profile follows SEC Form 4 activity through May 6, 2026, including purchase activity and sale activity. Recent filings connect the profile to Berkshire Hathaway Class B (2020 Irrev Trust FBO Grandchildren) (BRK.B) and Snap Inc (Trade was for 2020 Trust for Khanna Children) (SNAP). The current snapshot covers public activity from Jun 20, 2024 to May 6, 2026. Reported amounts are shown as $225.6K to $591.0K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.