ACADIA PHARMACEUTICALS INC

Ticker: ACAD CUSIP: 004225108 Class: Common Stock

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

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

Q2 2015

Shares 59,527 Value ($000) $2,493 Avg Close $38.70 Range $31.00 - $43.24

Q1 2015

Shares 49,961 Value ($000) $1,628 Avg Close $34.37 Range $29.45 - $46.48

Q4 2014

Shares 15,200 Value ($000) $483 Avg Close $28.36 Range $22.04 - $33.49

Q2 2014

Shares 159,211 Value ($000) $3,597 Avg Close $20.88 Range $15.64 - $25.50

Q1 2014

Shares 304,064 Value ($000) $7,398 Avg Close $25.30 Range $21.20 - $32.00

Q4 2013

Shares 271,779 Value ($000) $6,792 Avg Close $23.59 Range $19.65 - $29.73

Q3 2013

Shares 322,606 Value ($000) $8,862 Avg Close $20.91 Range $17.02 - $28.38

Q2 2013

Shares 346,885 Value ($000) $6,296 Avg Close $13.77 Range $7.40 - $20.09

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	59,527	$2,493	$38.70	$31.00 - $43.24
Q1 2015	49,961	$1,628	$34.37	$29.45 - $46.48
Q4 2014	15,200	$483	$28.36	$22.04 - $33.49
Q2 2014	159,211	$3,597	$20.88	$15.64 - $25.50
Q1 2014	304,064	$7,398	$25.30	$21.20 - $32.00
Q4 2013	271,779	$6,792	$23.59	$19.65 - $29.73
Q3 2013	322,606	$8,862	$20.91	$17.02 - $28.38
Q2 2013	346,885	$6,296	$13.77	$7.40 - $20.09