Spark Investment Management’s Alpha and Omega Semiconductor AOSL Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2019 Q2	–	Sell	-19,900	Closed	-$229K	–	561
2019 Q1	$229K	Buy	+19,900	New	+$220K	0.01%	481
2018 Q4	–	Sell	-29,938	Closed	-$348K	–	662
2018 Q3	$348K	Sell	29,938 -73,662	-71%	-$1.01M	0.02%	496
2018 Q2	$1.48M	Sell	103,600 -14,800	-13%	-$228K	0.09%	300
2018 Q1	$1.83M	Sell	118,400 -60,300	-34%	-$975K	0.12%	241
2017 Q4	$2.92M	Sell	178,700 -9,500	-5%	-$166K	0.16%	196
2017 Q3	$3.1M	Buy	188,200 +13,700	+8%	+$224K	0.17%	199
2017 Q2	$2.91M	Hold	174,500	–	–	0.18%	186
2017 Q1	$3M	Hold	174,500	–	–	0.19%	171
2016 Q4	$3.71M	Hold	174,500	–	–	0.31%	81
2016 Q3	$3.79M	Buy	174,500 +53,500	+44%	+$961K	0.31%	95
2016 Q2	$1.69M	Hold	121,000	–	–	0.16%	214
2016 Q1	$1.43M	Buy	121,000 +64,300	+113%	+$678K	0.14%	222
2015 Q4	$521K	Buy	56,700 +30,000	+112%	+$274K	0.07%	370
2015 Q3	$207K	Sell	26,700 -6,500	-20%	-$51.3K	0.03%	535
2015 Q2	$290K	Sell	33,200 -5,300	-14%	-$45.5K	0.04%	452
2015 Q1	$342K	Hold	38,500	–	–	0.05%	446
2014 Q4	$340K	Buy	38,500 +11,800	+44%	+$106K	0.06%	386
2014 Q3	$250K	Buy	26,700 +9,000	+51%	+$85.2K	0.04%	476
2014 Q2	$163K	Buy	+17,700	New	+$140K	0.02%	514

Other funds holding AOSL