MEDIFAST INC

Ticker: MED CUSIP: 58470H101 Class: Common Stock

Grantham, Mayo, Van Otterloo & Co. LLC's Holding History (CIK: 0001352662)

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

Q3 2018

Shares 1,300 Value ($000) $288 Avg Close $165.42 Range $125.71 - $212.88

Q2 2018

Shares 5,100 Value ($000) $817 Avg Close $103.97 Range $73.74 - $145.98

Q1 2018

Shares 5,900 Value ($000) $551 Avg Close $60.45 Range $50.11 - $76.76

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	1,300	$288	$165.42	$125.71 - $212.88
Q2 2018	5,100	$817	$103.97	$73.74 - $145.98
Q1 2018	5,900	$551	$60.45	$50.11 - $76.76