BlackRock’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
$1.53B Buy
6,641,730
+502,891
+8% +$114M 0.03% 498
2025
Q4
$981M Buy
6,138,839
+15,510
+0.3% +$2.3M 0.02% 696
2025
Q3
$758M Sell
6,123,329
-1,193,234
-16% -$127M 0.01% 812
2025
Q2
$727M Buy
7,316,563
+249,856
+4% +$20.3M 0.01% 806
2025
Q1
$566M Sell
7,066,707
-53,176
-0.7% -$5.37M 0.01% 953
2024
Q4
$743M Buy
7,119,883
+266,824
+4% +$28.8M 0.02% 802
2024
Q3
$745M Buy
6,853,059
+240,264
+4% +$28.5M 0.02% 797
2024
Q2
$863M Buy
6,612,795
+201,243
+3% +$25.4M 0.02% 665
2024
Q1
$853M Buy
6,411,552
+232,927
+4% +$27.1M 0.02% 686
2023
Q4
$636M Buy
6,178,625
+80,880
+1% +$6.57M 0.02% 824
2023
Q3
$528M Buy
6,097,745
+379,471
+7% +$37M 0.02% 857
2023
Q2
$618M Buy
5,718,274
+234,495
+4% +$21.5M 0.02% 797
2023
Q1
$486M Sell
5,483,779
-6,478
-0.1% -$618K 0.01% 936
2022
Q4
$465M Buy
5,490,257
+90,579
+2% +$7.26M 0.01% 928
2022
Q3
$446M Buy
5,399,678
+106,080
+2% +$10.9M 0.02% 881
2022
Q2
$543M Buy
5,293,598
+65,100
+1% +$7.58M 0.02% 790
2022
Q1
$784M Buy
5,228,498
+168,727
+3% +$26.2M 0.02% 691
2021
Q4
$881M Sell
5,059,771
-135,852
-3% -$21.2M 0.02% 670
2021
Q3
$784M Sell
5,195,623
-78,313
-1% -$12M 0.02% 689
2021
Q2
$938M Sell
5,273,936
-156,256
-3% -$28.4M 0.03% 628
2021
Q1
$1.01B Buy
5,430,192
+274,904
+5% +$46.2M 0.03% 578
2020
Q4
$776M Buy
5,155,288
+135,161
+3% +$17.7M 0.02% 641
2020
Q3
$548M Sell
5,020,127
-103,340
-2% -$12.1M 0.02% 707
2020
Q2
$580M Buy
5,123,467
+74,135
+1% +$7.38M 0.02% 626
2020
Q1
$411M Sell
5,049,332
-108,065
-2% -$11.1M 0.02% 715
2019
Q4
$567M Buy
5,157,397
+260,465
+5% +$27.3M 0.02% 717
2019
Q3
$452M Sell
4,896,932
-19,476
-0.4% -$1.61M 0.02% 822
2019
Q2
$383M Sell
4,916,408
-38,746
-0.8% -$3.28M 0.02% 954
2019
Q1
$461M Sell
4,955,154
-4,944
-0.1% -$399K 0.02% 782
2018
Q4
$320M Sell
4,960,098
-127,387
-3% -$9.21M 0.02% 948
2018
Q3
$408M Buy
5,087,485
+46,856
+0.9% +$4.28M 0.02% 906
2018
Q2
$482M Sell
5,040,629
-1,101,652
-18% -$120M 0.02% 752
2018
Q1
$710M Buy
6,142,281
+153,820
+3% +$16.9M 0.03% 537
2017
Q4
$566M Sell
5,988,461
-772,215
-11% -$76.9M 0.03% 643
2017
Q3
$639M Buy
6,760,676
+227,747
+3% +$18.6M 0.03% 544
2017
Q2
$440M Sell
6,532,929
-51,968
-0.8% -$3.94M 0.02% 713
2017
Q1
$453M Buy
6,584,897
+6,571,973
+50,851% +$433M 0.02% 699
2016
Q4
$768K Sell
12,924
-1,408
-10% -$76K ﹤0.01% 1581
2016
Q3
$713K Buy
14,332
+332
+2% +$15.7K ﹤0.01% 1618
2016
Q2
$603K Buy
14,000
+10,336
+282% +$401K ﹤0.01% 1605
2016
Q1
$137K Buy
3,664
+2,081
+131% +$71.1K ﹤0.01% 1850
2015
Q4
$57K Buy
1,583
+342
+28% +$12.2K ﹤0.01% 1978
2015
Q3
$42K Sell
1,241
-183
-13% -$6.37K ﹤0.01% 1981
2015
Q2
$54K Sell
1,424
-63
-4% -$2.29K ﹤0.01% 1948
2015
Q1
$50K Hold
1,487
﹤0.01% 1953
2014
Q4
$55K Hold
1,487
﹤0.01% 1913
2014
Q3
$50K Hold
1,487
﹤0.01% 1914
2014
Q2
$46K Sell
1,487
-118
-7% -$3.42K ﹤0.01% 1964
2014
Q1
$48K Hold
1,605
﹤0.01% 1932
2013
Q4
$48K Sell
1,605
-77
-5% -$2.24K ﹤0.01% 1946
2013
Q3
$45K Buy
1,682
+78
+5% +$2.08K ﹤0.01% 1878
2013
Q2
$43K Buy
+1,604
New +$43.4K ﹤0.01% 1923

Other funds holding MKSI

BlackRock's MKSI Position: Q1 2026 in Review

BlackRock increased its MKS Inc (MKSI) stake by 8.2% in Q1 2026, buying an estimated $114M and bringing the position to 6,641,730 shares worth $1.53B. The position accounts for 0.03% of the portfolio, ranked #498.

BlackRock first reported a position in MKSI in Q2 2013 and has held it in 52 quarters since. 615 funds tracked by Wall St. Rank hold MKSI as of Q1 2026.

  • BlackRock held 6,641,730 shares of MKS Inc worth $1.53B as of Q1 2026.
  • BlackRock bought 502,891 MKS Inc shares in Q1 2026, an estimated $114M.
  • MKS Inc made up 0.03% of BlackRock's portfolio in Q1 2026, its #498 holding.
  • BlackRock first reported a position in MKS Inc in Q2 2013 and has held it in 52 quarters since.
  • 615 funds tracked by Wall St. Rank held MKS Inc as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.