D.E. Shaw & Co’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
$27.6M Buy
+120,173
New +$27.2M 0.02% 954
2025
Q3
Sell
-96,288
Closed -$9.57M 4792
2025
Q2
$9.57M Sell
96,288
-296,093
-75% -$24.1M 0.01% 1529
2025
Q1
$31.4M Buy
392,381
+24,944
+7% +$2.52M 0.03% 696
2024
Q4
$38.4M Buy
367,437
+225,285
+158% +$24.3M 0.03% 686
2024
Q3
$15.5M Buy
142,152
+81,245
+133% +$9.65M 0.01% 1145
2024
Q2
$7.95M Buy
+60,907
New +$7.69M 0.01% 1482
2023
Q2
Sell
-4,306
Closed -$382K 4423
2023
Q1
$382K Buy
+4,306
New +$411K ﹤0.01% 3667
2022
Q4
Sell
-22,729
Closed -$1.88M 5003
2022
Q3
$1.88M Sell
22,729
-7,881
-26% -$811K ﹤0.01% 3067
2022
Q2
$3.14M Buy
30,610
+6,045
+25% +$704K ﹤0.01% 2658
2022
Q1
$3.69M Sell
24,565
-57,995
-70% -$9.01M ﹤0.01% 2670
2021
Q4
$14.4M Sell
82,560
-56,056
-40% -$8.76M 0.01% 1350
2021
Q3
$20.9M Buy
138,616
+109,511
+376% +$16.8M 0.02% 994
2021
Q2
$5.18M Buy
29,105
+15,774
+118% +$2.87M ﹤0.01% 2004
2021
Q1
$2.47M Sell
13,331
-35,231
-73% -$5.92M ﹤0.01% 2416
2020
Q4
$7.31M Buy
48,562
+11,831
+32% +$1.55M 0.01% 1578
2020
Q3
$4.01M Sell
36,731
-4,740
-11% -$555K ﹤0.01% 1869
2020
Q2
$4.7M Buy
41,471
+3,682
+10% +$366K 0.01% 1694
2020
Q1
$3.08M Sell
37,789
-62,576
-62% -$6.4M ﹤0.01% 1834
2019
Q4
$11M Buy
100,365
+72,725
+263% +$7.62M 0.01% 1135
2019
Q3
$2.55M Sell
27,640
-27,653
-50% -$2.28M ﹤0.01% 2175
2019
Q2
$4.31M Sell
55,293
-143,664
-72% -$12.1M 0.01% 1693
2019
Q1
$18.5M Sell
198,957
-273,777
-58% -$22.1M 0.02% 768
2018
Q4
$30.5M Buy
472,734
+140,985
+42% +$10.2M 0.04% 514
2018
Q3
$26.6M Buy
331,749
+85,688
+35% +$7.83M 0.03% 647
2018
Q2
$23.5M Buy
246,061
+219,045
+811% +$23.9M 0.03% 636
2018
Q1
$3.12M Sell
27,016
-4,468
-14% -$491K ﹤0.01% 1726
2017
Q4
$2.98M Sell
31,484
-18,543
-37% -$1.85M ﹤0.01% 1856
2017
Q3
$4.72M Sell
50,027
-13,355
-21% -$1.09M 0.01% 1411
2017
Q2
$4.27M Buy
63,382
+53,536
+544% +$4.06M 0.01% 1460
2017
Q1
$677K Sell
9,846
-3,033
-24% -$200K ﹤0.01% 2568
2016
Q4
$765K Sell
12,879
-12,888
-50% -$695K ﹤0.01% 2624
2016
Q3
$1.28M Sell
25,767
-183,020
-88% -$8.63M ﹤0.01% 2232
2016
Q2
$8.99M Sell
208,787
-145,705
-41% -$5.66M 0.02% 947
2016
Q1
$13.3M Buy
354,492
+74,329
+27% +$2.54M 0.02% 711
2015
Q4
$10.1M Buy
280,163
+132,456
+90% +$4.72M 0.02% 972
2015
Q3
$4.95M Sell
147,707
-20,543
-12% -$715K 0.01% 1409
2015
Q2
$6.38M Sell
168,250
-6,940
-4% -$253K 0.01% 1292
2015
Q1
$5.92M Buy
175,190
+14,808
+9% +$520K 0.01% 1268
2014
Q4
$5.87M Buy
160,382
+71,481
+80% +$2.53M 0.01% 1449
2014
Q3
$2.97M Buy
+88,901
New +$2.91M ﹤0.01% 1933
2014
Q2
Sell
-35,518
Closed -$1.06M 4398
2014
Q1
$1.06M Buy
35,518
+22,633
+176% +$679K ﹤0.01% 2975
2013
Q4
$386K Sell
12,885
-136,349
-91% -$3.96M ﹤0.01% 3884
2013
Q3
$3.97M Buy
149,234
+37,065
+33% +$990K 0.01% 1814
2013
Q2
$2.98M Buy
+112,169
New +$3.03M 0.01% 1748

Other funds holding MKSI

D.E. Shaw & Co's MKSI Position: Q1 2026 in Review

D.E. Shaw & Co opened a new position in MKS Inc (MKSI) in Q1 2026: 120,173 shares worth $27.6M. The stake represents 0.02% of the portfolio and ranks #954 among its holdings. This is a return to the name: D.E. Shaw & Co previously reported a position in MKSI as recently as Q2 2025.

D.E. Shaw & Co first reported a position in MKSI in Q2 2013 and has held it in 44 quarters since. The position peaked at $38.4M in Q4 2024. 615 funds tracked by Wall St. Rank hold MKSI as of Q1 2026.

  • D.E. Shaw & Co held 120,173 shares of MKS Inc worth $27.6M as of Q1 2026.
  • MKS Inc was a new D.E. Shaw & Co position in Q1 2026.
  • MKS Inc made up 0.02% of D.E. Shaw & Co's portfolio in Q1 2026, its #954 holding.
  • D.E. Shaw & Co first reported a position in MKS Inc in Q2 2013 and has held it in 44 quarters since.
  • D.E. Shaw & Co's MKS Inc position peaked at $38.4M in Q4 2024.
  • 615 funds tracked by Wall St. Rank held MKS Inc as of Q1 2026.

Based on D.E. Shaw & Co's 13F filing for Q1 2026, filed 15 May 2026.