MEDIFAST INC

Ticker: MED CUSIP: 58470H101 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q1 2019

Shares 49,606 Value ($000) $6,327 Avg Close $104.33 Range $87.43 - $118.52

Q4 2018

Shares 66,548 Value ($000) $8,320 Avg Close $139.91 Range $92.77 - $182.91

Q3 2018

Shares 103,645 Value ($000) $22,963 Avg Close $165.42 Range $125.71 - $212.88

Q2 2018

Shares 90,427 Value ($000) $14,483 Avg Close $103.97 Range $73.74 - $145.98

Q1 2018

Shares 76,832 Value ($000) $7,180 Avg Close $60.45 Range $50.11 - $76.76

Q4 2017

Shares 47,200 Value ($000) $3,295 Avg Close $53.33 Range $47.43 - $60.08

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	49,606	$6,327	$104.33	$87.43 - $118.52
Q4 2018	66,548	$8,320	$139.91	$92.77 - $182.91
Q3 2018	103,645	$22,963	$165.42	$125.71 - $212.88
Q2 2018	90,427	$14,483	$103.97	$73.74 - $145.98
Q1 2018	76,832	$7,180	$60.45	$50.11 - $76.76
Q4 2017	47,200	$3,295	$53.33	$47.43 - $60.08