MEDIFAST INC

Ticker: MED CUSIP: 58470H101 Class: Common Stock

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

Note: Option positions (PUT/CALL) are excluded.

Q3 2019

Shares 59,223 Value ($000) $6,137 Avg Close $89.47 Range $80.22 - $108.51

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	59,223	$6,137	$89.47	$80.22 - $108.51