O'Shaughnessy Asset Management’s MKS Inc MKSI Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.19M	Buy	5,171 +2,754	+114%	+$623K	0.01%	1098
2025 Q4	$386K	Buy	+2,417	New	+$359K	﹤0.01%	1635
2021 Q4	–	Sell	-30	Closed	-$5K	–	1982
2021 Q3	$5K	Sell	30 -2	-6%	-$307	﹤0.01%	2336
2021 Q2	$6K	Buy	32 +24	+300%	+$4.36K	﹤0.01%	2105
2021 Q1	$1K	Hold	8	–	–	﹤0.01%	2222
2020 Q4	$1K	Buy	+8	New	+$1.05K	﹤0.01%	1959
2020 Q3	–	Sell	-2	Closed	–	–	1946
2020 Q2	$0	Sell	2 -9	-82%	-$895	﹤0.01%	1824
2020 Q1	$1K	Sell	11 -295	-96%	-$30.2K	﹤0.01%	1229
2019 Q4	$34K	Buy	306 +288	+1,600%	+$30.2K	﹤0.01%	1034
2019 Q3	$2K	Buy	18 +5	+38%	+$413	﹤0.01%	866
2019 Q2	$1K	Sell	13 -2,371	-99%	-$200K	﹤0.01%	910
2019 Q1	$221K	Sell	2,384 -702	-23%	-$56.6K	0.01%	521
2018 Q4	$200K	Sell	3,086 -10,774	-78%	-$779K	0.01%	497
2018 Q3	$1.11M	Sell	13,860 -1,497	-10%	-$137K	0.02%	246
2018 Q2	$1.47M	Sell	15,357 -918	-6%	-$100K	0.03%	215
2018 Q1	$1.88M	Buy	16,275 +5,242	+48%	+$576K	0.04%	191
2017 Q4	$1.04M	Buy	+11,033	New	+$1.1M	0.02%	266
2017 Q3	–	Sell	-981	Closed	-$66K	–	955
2017 Q2	$66K	Sell	981 -64	-6%	-$4.85K	﹤0.01%	696
2017 Q1	$72K	Sell	1,045 -9	-0.9%	-$592	﹤0.01%	665
2016 Q4	$63K	Sell	1,054 -3,175	-75%	-$171K	﹤0.01%	689
2016 Q3	$210K	Buy	+4,229	New	+$199K	﹤0.01%	482
2015 Q4	–	Sell	-50,161	Closed	-$1.68M	–	968
2015 Q3	$1.68M	Sell	50,161 -15,613	-24%	-$543K	0.04%	255
2015 Q2	$2.5M	Sell	65,774 -12	-0%	-$437	0.05%	213
2015 Q1	$2.22M	Buy	65,786 +6,504	+11%	+$229K	0.04%	218
2014 Q4	$2.16M	Buy	59,282 +46,278	+356%	+$1.64M	0.04%	233
2014 Q3	$433K	Buy	+13,004	New	+$426K	0.01%	419