A.R.T. Advisors’s MKS Inc. Common Stock MKSI Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2020
Q1
Sell
-8,060
Closed -$887K 622
2019
Q4
$887K Buy
+8,060
New +$887K 0.04% 612
2019
Q3
Sell
-22,408
Closed -$1.75M 1605
2019
Q2
$1.75M Buy
+22,408
New +$1.75M 0.1% 268
2018
Q4
Sell
-41,500
Closed -$3.33M 1529
2018
Q3
$3.33M Buy
41,500
+11,000
+36% +$882K 0.15% 166
2018
Q2
$2.92M Buy
30,500
+26,200
+609% +$2.51M 0.12% 243
2018
Q1
$497K Sell
4,300
-31,600
-88% -$3.65M 0.02% 963
2017
Q4
$3.39M Buy
+35,900
New +$3.39M 0.15% 184
2017
Q3
Sell
-17,900
Closed -$1.2M 1533
2017
Q2
$1.2M Buy
+17,900
New +$1.2M 0.06% 445
2017
Q1
Sell
-14,500
Closed -$861K 1600
2016
Q4
$861K Buy
+14,500
New +$861K 0.05% 530
2015
Q4
Sell
-19,114
Closed -$640K 1623
2015
Q3
$640K Sell
19,114
-11,903
-38% -$399K 0.02% 781
2015
Q2
$1.18M Sell
31,017
-34,939
-53% -$1.33M 0.04% 671
2015
Q1
$2.23M Sell
65,956
-30,658
-32% -$1.04M 0.08% 360
2014
Q4
$3.54M Buy
96,614
+63,892
+195% +$2.34M 0.13% 203
2014
Q3
$1.09M Buy
32,722
+5,209
+19% +$174K 0.05% 478
2014
Q2
$859K Sell
27,513
-2,243
-8% -$70K 0.04% 553
2014
Q1
$889K Buy
29,756
+11,026
+59% +$329K 0.05% 541
2013
Q4
$560K Buy
18,730
+9,767
+109% +$292K 0.03% 731
2013
Q3
$238K Sell
8,963
-16,766
-65% -$445K 0.01% 1072
2013
Q2
$682K Buy
+25,729
New +$682K 0.02% 767