O'Sullivan Michael J.

Insider

Senior Vice President, General Counsel and Secretary

Trades at: BRK.B· SNAP

30D 90D 1Y

Net shares · 365d

-273.3K

536 buy · 273.9K sell

Net value · 365d

-$1.9M

$250.5K in · $2.2M out

Sentiment · 365d

Net selling

10% buying · 90% selling

Open-market trades · 365d

536 buy · 273.9K sell

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

Transactions · 365d

Open-market Buys Sells All types

BRK.B Buy·P
May 6, 26

Senior Vice President, Genera…

$250.5K

536 sh · $467.44 avg · 2 lots

Own +422%
SNAP Sell·S
Nov 17, 25

General Counsel

$591.2K

70.9K sh · $8.34

Own -4%
SNAP Sell·S
Oct 31, 25

General Counsel · 10b5-1

$185.5K

24.0K sh · $7.73

Own -5%
SNAP Sell·S
Sep 30, 25

General Counsel · 10b5-1

$188.6K

24.0K sh · $7.86

Own -4%
SNAP Sell·S
Sep 16, 25

General Counsel

$108.3K

14.3K sh · $7.58

Own -1%
SNAP Sell·S
Aug 29, 25

General Counsel · 10b5-1

$171.8K

24.0K sh · $7.16

Own -4%
SNAP Sell·S
Aug 18, 25

General Counsel

$493.3K

68.7K sh · $7.18

Own -3%
SNAP Sell·S
Jul 31, 25

General Counsel · 10b5-1

$229.7K

24.0K sh · $9.57

Own -5%
SNAP Sell·S
Jun 30, 25

General Counsel · 10b5-1

$209.0K

24.0K sh · $8.71

Own -4%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 6, 2026	BRK.B	Senior Vice President, General Counsel and Secretary	Buy P	5362 lots	+422%	$467.44 avg	$250.5K
Nov 17, 2025	SNAP	General Counsel	Sell S	70.9K	-4%	$8.34	$591.2K
Oct 31, 2025	SNAP	General Counsel	Sell S	24.0K	-5%	$7.73	$185.5K
Sep 30, 2025	SNAP	General Counsel	Sell S	24.0K	-4%	$7.86	$188.6K
Sep 16, 2025	SNAP	General Counsel	Sell S	14.3K	-1%	$7.58	$108.3K
Aug 29, 2025	SNAP	General Counsel	Sell S	24.0K	-4%	$7.16	$171.8K
Aug 18, 2025	SNAP	General Counsel	Sell S	68.7K	-3%	$7.18	$493.3K
Jul 31, 2025	SNAP	General Counsel	Sell S	24.0K	-5%	$9.57	$229.7K
Jun 30, 2025	SNAP	General Counsel	Sell S	24.0K	-4%	$8.71	$209.0K

Buy Sell Non-market (grant · exercise · gift)

About O'Sullivan Michael J.

This profile aggregates every SEC Form 4 insider transaction reported by O'Sullivan Michael J. across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.