CATALYST PHARMACEUTICALS INC

Ticker: CPRX CUSIP: 14888U101 Class: Common Stock

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

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

Q4 2017

Shares 1,230,787 Value ($000) $4,812 Avg Close $3.30 Range $2.41 - $4.51

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	1,230,787	$4,812	$3.30	$2.41 - $4.51