SIMULATIONS PLUS INC

Ticker: SLP CUSIP: 829214105 Class: Common Stock

PRELUDE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001387508)

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

Q1 2018

Shares 1,309 Value ($000) $19 Avg Close $15.28 Range $13.64 - $16.25

Q4 2017

Shares 2,609 Value ($000) $42 Avg Close $15.64 Range $14.49 - $16.58

Q3 2017

Shares 3,400 Value ($000) $53 Avg Close $13.78 Range $11.41 - $15.34

Q3 2016

Shares 2,900 Value ($000) $26 Avg Close $7.73 Range $6.88 - $8.62

Q2 2016

Shares 2,900 Value ($000) $22 Avg Close $7.47 Range $6.25 - $8.92

Q3 2015

Shares 2,330 Value ($000) $22 Avg Close $6.44 Range $5.44 - $8.93

Q3 2014

Shares 1,400 Value ($000) $10 Avg Close $5.62 Range $4.79 - $6.23

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	1,309	$19	$15.28	$13.64 - $16.25
Q4 2017	2,609	$42	$15.64	$14.49 - $16.58
Q3 2017	3,400	$53	$13.78	$11.41 - $15.34
Q3 2016	2,900	$26	$7.73	$6.88 - $8.62
Q2 2016	2,900	$22	$7.47	$6.25 - $8.92
Q3 2015	2,330	$22	$6.44	$5.44 - $8.93
Q3 2014	1,400	$10	$5.62	$4.79 - $6.23