Simplex Trading’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
$1.65M Sell
7,200
-28,400
-80% -$6.42M ﹤0.01% 2002
2025
Q4
$5.69M Buy
35,600
+14,400
+68% +$2.14M ﹤0.01% 1186
2025
Q3
$2.62M Buy
21,200
+2,500
+13% +$266K ﹤0.01% 2049
2025
Q2
$1.86M Buy
18,700
+13,300
+246% +$1.08M ﹤0.01% 2180
2025
Q1
$432K Buy
5,400
+2,400
+80% +$242K ﹤0.01% 3541
2024
Q4
$313K Sell
3,000
-1,100
-27% -$119K ﹤0.01% 4025
2024
Q3
$445K Hold
4,100
﹤0.01% 3718
2024
Q2
$535K Sell
4,100
-5,000
-55% -$631K ﹤0.01% 3600
2024
Q1
$1.21M Sell
9,100
-4,400
-33% -$511K ﹤0.01% 2914
2023
Q4
$1.39M Buy
13,500
+5,500
+69% +$447K ﹤0.01% 2691
2023
Q3
$692K Buy
8,000
+3,800
+90% +$371K ﹤0.01% 3045
2023
Q2
$454K Buy
4,200
+900
+27% +$82.4K ﹤0.01% 3417
2023
Q1
$292K Sell
3,300
-6,200
-65% -$592K ﹤0.01% 3866
2022
Q4
$804K Buy
9,500
+2,700
+40% +$216K ﹤0.01% 2689
2022
Q3
$561K Buy
6,800
+900
+15% +$92.7K ﹤0.01% 3341
2022
Q2
$605K Buy
5,900
+4,800
+436% +$559K ﹤0.01% 3215
2022
Q1
$165K Sell
1,100
-4,700
-81% -$730K ﹤0.01% 5429
2021
Q4
$1.01M Sell
5,800
-1,800
-24% -$281K ﹤0.01% 2838
2021
Q3
$1.3M Hold
7,600
﹤0.01% 2723
2021
Q2
$1.35M Buy
7,600
+7,578
+34,445% +$1.38M ﹤0.01% 2697
2021
Q1
$407K Sell
22
-11
-33% -$1.85K ﹤0.01% 3671
2020
Q4
$496K Buy
33
+15
+83% +$1.96K ﹤0.01% 3441
2020
Q3
$196K Sell
18
-25
-58% -$2.93K ﹤0.01% 4135
2020
Q2
$486K Buy
43
+9
+26% +$895 ﹤0.01% 2942
2020
Q1
$276K Sell
34
-42
-55% -$4.3K ﹤0.01% 3225
2019
Q4
$836K Sell
76
-6
-7% -$629 ﹤0.01% 2251
2019
Q3
$756K Buy
82
+63
+332% +$5.2K ﹤0.01% 2223
2019
Q2
$147K Sell
19
-17
-47% -$1.44K ﹤0.01% 3791
2019
Q1
$334K Buy
36
+32
+800% +$2.58K ﹤0.01% 3081
2018
Q4
$25K Sell
4
-112
-97% -$8.1K ﹤0.01% 5162
2018
Q3
$929K Sell
116
-26
-18% -$2.38K ﹤0.01% 1973
2018
Q2
$1.36M Buy
142
+70
+97% +$7.63K 0.01% 1494
2018
Q1
$34K Sell
72
-27
-27% -$2.96K ﹤0.01% 2819
2017
Q4
$24K Sell
99
-9
-8% -$897 ﹤0.01% 3133
2017
Q3
$177K Buy
108
+28
+35% +$2.29K 0.01% 1275
2017
Q2
$28K Buy
80
+23
+40% +$1.74K ﹤0.01% 2947
2017
Q1
$37K Buy
57
+45
+375% +$2.96K ﹤0.01% 2643
2016
Q4
$1K Buy
+12
New +$648 ﹤0.01% 5439
2015
Q4
Sell
-60
Closed -$1K 5836
2015
Q3
$1K Buy
60
+30
+100% +$1.04K ﹤0.01% 5071
2015
Q2
$3K Buy
+30
New +$1.09K ﹤0.01% 4063

Other funds holding MKSI

Simplex Trading's MKSI Position: Q2 2025 in Review

Simplex Trading sold out of MKS Inc (MKSI) in Q2 2025, closing a stake of 1,731 shares — an estimated $141K sold.

Simplex Trading first reported a position in MKSI in Q4 2014 and held it in 21 quarters. The position peaked at $969K in Q4 2017. 394 funds tracked by Wall St. Rank hold MKSI as of Q2 2025.

  • Simplex Trading reported no remaining MKS Inc position as of Q2 2025 after selling out during the quarter.
  • Simplex Trading sold 1,731 MKS Inc shares in Q2 2025, an estimated $141K.
  • Simplex Trading first reported a position in MKS Inc in Q4 2014 and held it in 21 quarters.
  • Simplex Trading's MKS Inc position peaked at $969K in Q4 2017.
  • 394 funds tracked by Wall St. Rank held MKS Inc as of Q2 2025.

Based on Simplex Trading's 13F filing for Q2 2025, filed 5 Aug 2025.