Michael J. O'Sullivan

See Remarks, Berkshire Hathaway; General Counsel, Snap

Bought, 12 months

$0.5M

Sold, 12 months

$0.8M

Companies

Latest trade

Aug 12, 2026

Companies

Berkshire HathawaySee Remarks +$0.5M SnapGeneral Counsel −$1.0M

Trades

BRK-B Bought 488 shares at $512.44 $0.3M Aug 12

BRK-B Bought 536 shares at $467.44 $0.3M May 6

SNAP Sold 70,882 shares at $8.34 $0.6M Nov 17

SNAP Sold 24,000 shares at $7.73 · planned $0.2M Oct 31

SNAP Sold 24,000 shares at $7.86 · planned $0.2M Sep 30

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.