ACADIA HEALTHCARE COMPANY IN

Ticker: ACHC CUSIP: 00404A109 Class: Common Stock

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

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

Q3 2016

Shares 13,963 Value ($000) $692 Avg Close $52.09 Range $46.99 - $57.29

Q2 2016

Shares 51,659 Value ($000) $2,862 Avg Close $58.49 Range $50.30 - $65.00

Q1 2016

Shares 42,434 Value ($000) $2,339 Avg Close $57.07 Range $49.77 - $65.89

Q4 2015

Shares 29,750 Value ($000) $1,858 Avg Close $65.14 Range $54.41 - $74.77

Q3 2015

Shares 91,070 Value ($000) $6,035 Avg Close $76.93 Range $58.70 - $85.62

Q2 2015

Shares 110,643 Value ($000) $8,667 Avg Close $71.98 Range $64.91 - $78.51

Q1 2015

Shares 77,617 Value ($000) $5,557 Avg Close $64.13 Range $55.57 - $73.81

Q4 2014

Shares 111,104 Value ($000) $6,801 Avg Close $58.20 Range $46.87 - $66.88

Q3 2014

Shares 108,419 Value ($000) $5,258 Avg Close $48.89 Range $43.45 - $52.37

Q2 2014

Shares 82,079 Value ($000) $3,735 Avg Close $43.95 Range $38.76 - $49.29

Q1 2014

Shares 59,412 Value ($000) $2,681 Avg Close $49.33 Range $44.00 - $53.87

Q4 2013

Shares 197,958 Value ($000) $9,369 Avg Close $43.45 Range $37.88 - $49.14

Q2 2013

Shares 370,547 Value ($000) $12,254 Avg Close $32.45 Range $27.85 - $35.78

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	13,963	$692	$52.09	$46.99 - $57.29
Q2 2016	51,659	$2,862	$58.49	$50.30 - $65.00
Q1 2016	42,434	$2,339	$57.07	$49.77 - $65.89
Q4 2015	29,750	$1,858	$65.14	$54.41 - $74.77
Q3 2015	91,070	$6,035	$76.93	$58.70 - $85.62
Q2 2015	110,643	$8,667	$71.98	$64.91 - $78.51
Q1 2015	77,617	$5,557	$64.13	$55.57 - $73.81
Q4 2014	111,104	$6,801	$58.20	$46.87 - $66.88
Q3 2014	108,419	$5,258	$48.89	$43.45 - $52.37
Q2 2014	82,079	$3,735	$43.95	$38.76 - $49.29
Q1 2014	59,412	$2,681	$49.33	$44.00 - $53.87
Q4 2013	197,958	$9,369	$43.45	$37.88 - $49.14
Q2 2013	370,547	$12,254	$32.45	$27.85 - $35.78