T. Rowe Price Associates
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T. Rowe Price Associates’s MKS Inc. Common Stock MKSI Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$410M Buy
4,129,128
+613,755
+17% +$61M 0.05% 299
2025
Q1
$282M Buy
3,515,373
+173,945
+5% +$13.9M 0.03% 356
2024
Q4
$349M Sell
3,341,428
-937,206
-22% -$97.8M 0.04% 324
2024
Q3
$465M Sell
4,278,634
-2,566,927
-37% -$279M 0.05% 290
2024
Q2
$894M Sell
6,845,561
-717,386
-9% -$93.7M 0.11% 175
2024
Q1
$1.01B Sell
7,562,947
-521,384
-6% -$69.3M 0.12% 165
2023
Q4
$832M Buy
8,084,331
+3,324,764
+70% +$342M 0.11% 181
2023
Q3
$412M Buy
4,759,567
+1,172,608
+33% +$101M 0.06% 267
2023
Q2
$388M Buy
3,586,959
+1,705,212
+91% +$184M 0.05% 282
2023
Q1
$167M Buy
1,881,747
+383,717
+26% +$34M 0.03% 412
2022
Q4
$127M Buy
1,498,030
+1,058,245
+241% +$89.7M 0.02% 451
2022
Q3
$36.3M Buy
439,785
+834
+0.2% +$68.9K 0.01% 739
2022
Q2
$45.1M Buy
438,951
+2,195
+0.5% +$225K 0.01% 906
2022
Q1
$65.5M Buy
436,756
+5,474
+1% +$821K 0.01% 876
2021
Q4
$75.1M Buy
431,282
+844
+0.2% +$147K 0.01% 857
2021
Q3
$65M Sell
430,438
-39,618
-8% -$5.98M 0.01% 921
2021
Q2
$83.6M Sell
470,056
-79,474
-14% -$14.1M 0.01% 851
2021
Q1
$102M Sell
549,530
-505,948
-48% -$93.8M 0.01% 773
2020
Q4
$159M Buy
1,055,478
+74,241
+8% +$11.2M 0.02% 586
2020
Q3
$107M Sell
981,237
-34,149
-3% -$3.73M 0.01% 634
2020
Q2
$115M Buy
1,015,386
+18,989
+2% +$2.15M 0.01% 595
2020
Q1
$81.2M Sell
996,397
-70,315
-7% -$5.73M 0.01% 636
2019
Q4
$117M Sell
1,066,712
-2,524
-0.2% -$278K 0.02% 615
2019
Q3
$98.7M Sell
1,069,236
-134,892
-11% -$12.4M 0.01% 630
2019
Q2
$93.8M Sell
1,204,128
-36,776
-3% -$2.86M 0.01% 664
2019
Q1
$115M Sell
1,240,904
-87,924
-7% -$8.18M 0.02% 603
2018
Q4
$85.9M Buy
1,328,828
+173,168
+15% +$11.2M 0.01% 643
2018
Q3
$92.6M Buy
1,155,660
+202,329
+21% +$16.2M 0.01% 694
2018
Q2
$91.2M Buy
953,331
+21,381
+2% +$2.05M 0.01% 689
2018
Q1
$108M Buy
931,950
+320,758
+52% +$37.1M 0.02% 630
2017
Q4
$57.8M Buy
611,192
+224,310
+58% +$21.2M 0.01% 813
2017
Q3
$36.5M Buy
386,882
+20,809
+6% +$1.97M 0.01% 969
2017
Q2
$24.6M Buy
366,073
+349,111
+2,058% +$23.5M ﹤0.01% 1093
2017
Q1
$1.17M Hold
16,962
﹤0.01% 1733
2016
Q4
$1.01M Buy
16,962
+9
+0.1% +$535 ﹤0.01% 1778
2016
Q3
$843K Hold
16,953
﹤0.01% 1803
2016
Q2
$730K Hold
16,953
﹤0.01% 1813
2016
Q1
$638K Hold
16,953
﹤0.01% 1871
2015
Q4
$610K Buy
16,953
+2,240
+15% +$80.6K ﹤0.01% 1875
2015
Q3
$493K Hold
14,713
﹤0.01% 1950
2015
Q2
$558K Hold
14,713
﹤0.01% 1951
2015
Q1
$497K Hold
14,713
﹤0.01% 1969
2014
Q4
$538K Hold
14,713
﹤0.01% 1938
2014
Q3
$491K Hold
14,713
﹤0.01% 1941
2014
Q2
$460K Hold
14,713
﹤0.01% 1991
2014
Q1
$440K Hold
14,713
﹤0.01% 1974
2013
Q4
$441K Hold
14,713
﹤0.01% 1960
2013
Q3
$391K Hold
14,713
﹤0.01% 1985
2013
Q2
$390K Buy
+14,713
New +$390K ﹤0.01% 1962