William Blair Investment Management’s Simulations Plus SLP Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q1	–	Sell	-211,418	Closed	-$15.2M	–	383
2020 Q4	$15.2M	Sell	211,418 -67,655	-24%	-$4.49M	0.05%	235
2020 Q3	$21M	Sell	279,073 -71,361	-20%	-$4.58M	0.08%	186
2020 Q2	$21M	Sell	350,434 -202,706	-37%	-$8.92M	0.09%	186
2020 Q1	$19.3M	Buy	553,140 +54,574	+11%	+$1.82M	0.09%	178
2019 Q4	$14.5M	Buy	498,566 +113,483	+29%	+$3.84M	0.06%	232
2019 Q3	$13.4M	Sell	385,083 -90,809	-19%	-$3.2M	0.06%	269
2019 Q2	$13.6M	Sell	475,892 -9,148	-2%	-$222K	0.06%	278
2019 Q1	$10.2M	Buy	485,040 +39,114	+9%	+$783K	0.04%	315
2018 Q4	$8.87M	Buy	445,926 +27,317	+7%	+$540K	0.04%	318
2018 Q3	$8.46M	Buy	418,609 +62,733	+18%	+$1.23M	0.03%	341
2018 Q2	$7.92M	Buy	355,876 +69,569	+24%	+$1.31M	0.03%	345
2018 Q1	$4.22M	Sell	286,307 -5,178	-2%	-$82.8K	0.02%	362
2017 Q4	$4.69M	Sell	291,485 -46,621	-14%	-$766K	0.02%	352
2017 Q3	$5.24M	Buy	338,106 +15,492	+5%	+$225K	0.02%	348
2017 Q2	$3.98M	Buy	322,614 +247,926	+332%	+$2.95M	0.01%	365
2017 Q1	$878K	Buy	+74,688	New	+$754K	﹤0.01%	401