American Century Companies’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
$64.6M Sell
280,965
-116,599
-29% -$26.4M 0.03% 638
2025
Q4
$63.5M Buy
397,564
+395,429
+18,521% +$58.7M 0.03% 624
2025
Q3
$264K Buy
+2,135
New +$228K ﹤0.01% 2650
2024
Q4
Sell
-172,201
Closed -$18.7M 2931
2024
Q3
$18.7M Sell
172,201
-5,239
-3% -$622K 0.01% 1054
2024
Q2
$23.2M Sell
177,440
-90,304
-34% -$11.4M 0.01% 888
2024
Q1
$35.6M Buy
267,744
+52,055
+24% +$6.05M 0.02% 700
2023
Q4
$22.2M Sell
215,689
-146,272
-40% -$11.9M 0.02% 838
2023
Q3
$31.3M Sell
361,961
-9,867
-3% -$962K 0.02% 624
2023
Q2
$40.2M Sell
371,828
-87,714
-19% -$8.03M 0.03% 513
2023
Q1
$40.7M Buy
459,542
+85,080
+23% +$8.12M 0.03% 490
2022
Q4
$31.7M Buy
374,462
+356,131
+1,943% +$28.5M 0.03% 561
2022
Q3
$1.51M Buy
18,331
+4,588
+33% +$472K ﹤0.01% 1543
2022
Q2
$1.41M Sell
13,743
-1,139
-8% -$133K ﹤0.01% 1555
2022
Q1
$2.23M Buy
14,882
+279
+2% +$43.3K ﹤0.01% 1370
2021
Q4
$2.54M Sell
14,603
-1,766
-11% -$276K ﹤0.01% 1275
2021
Q3
$2.47M Buy
16,369
+3,215
+24% +$494K ﹤0.01% 1229
2021
Q2
$2.34M Buy
13,154
+3,876
+42% +$704K ﹤0.01% 1201
2021
Q1
$1.72M Sell
9,278
-127,373
-93% -$21.4M ﹤0.01% 1216
2020
Q4
$20.6M Buy
136,651
+7,110
+5% +$930K 0.02% 609
2020
Q3
$14.2M Sell
129,541
-7,898
-6% -$926K 0.01% 626
2020
Q2
$15.6M Buy
137,439
+65,420
+91% +$6.51M 0.01% 573
2020
Q1
$5.87M Buy
72,019
+12,482
+21% +$1.28M 0.01% 707
2019
Q4
$6.55M Buy
+59,537
New +$6.24M 0.01% 769
2018
Q4
Sell
-255,723
Closed -$20.5M 1305
2018
Q3
$20.5M Buy
255,723
+53,016
+26% +$4.84M 0.02% 503
2018
Q2
$19.4M Buy
202,707
+20,389
+11% +$2.22M 0.02% 512
2018
Q1
$21.1M Buy
182,318
+46,067
+34% +$5.06M 0.02% 500
2017
Q4
$12.9M Sell
136,251
-12,744
-9% -$1.27M 0.01% 607
2017
Q3
$14.1M Buy
148,995
+52,205
+54% +$4.27M 0.01% 596
2017
Q2
$6.51M Buy
96,790
+40,475
+72% +$3.07M 0.01% 793
2017
Q1
$3.87M Buy
+56,315
New +$3.71M ﹤0.01% 937
2015
Q4
Sell
-510,643
Closed -$17.1M 1351
2015
Q3
$17.1M Buy
510,643
+118,734
+30% +$4.13M 0.02% 539
2015
Q2
$14.9M Sell
391,909
-39,281
-9% -$1.43M 0.02% 619
2015
Q1
$14.6M Buy
431,190
+6,979
+2% +$245K 0.02% 606
2014
Q4
$15.5M Sell
424,211
-1,096,755
-72% -$38.8M 0.02% 596
2014
Q3
$50.8M Buy
1,520,966
+807,621
+113% +$26.4M 0.06% 356
2014
Q2
$22.3M Buy
713,345
+288,764
+68% +$8.37M 0.03% 520
2014
Q1
$12.7M Buy
424,581
+2,271
+0.5% +$68.1K 0.02% 651
2013
Q4
$12.6M Sell
422,310
-26,326
-6% -$766K 0.01% 647
2013
Q3
$11.9M Sell
448,636
-18,837
-4% -$503K 0.02% 653
2013
Q2
$12.4M Buy
+467,473
New +$12.6M 0.02% 613

Other funds holding MKSI

American Century Companies's MKSI Position: Q1 2026 in Review

American Century Companies reduced its MKS Inc (MKSI) stake by 29% in Q1 2026, selling an estimated $26.4M and leaving 280,965 shares worth $64.6M. The position accounts for 0.03% of the portfolio, ranked #638.

American Century Companies first reported a position in MKSI in Q2 2013 and has held it in 40 quarters since. 616 funds tracked by Wall St. Rank hold MKSI as of Q1 2026.

  • American Century Companies held 280,965 shares of MKS Inc worth $64.6M as of Q1 2026.
  • American Century Companies sold 116,599 MKS Inc shares in Q1 2026, an estimated $26.4M.
  • MKS Inc made up 0.03% of American Century Companies's portfolio in Q1 2026, its #638 holding.
  • American Century Companies first reported a position in MKS Inc in Q2 2013 and has held it in 40 quarters since.
  • 616 funds tracked by Wall St. Rank held MKS Inc as of Q1 2026.

Based on American Century Companies's 13F filing for Q1 2026, filed 15 May 2026.