MKSI

MKS INC.

MKSI·55306N104·US·Common Stock·Technology - Scientific & Technical Instruments-13D/G

MKSI (MKS INC.) is held by 262 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($3.1B), Invesco Ltd. ($2.1B), VANGUARD PORTFOLIO MANAGEMENT LLC ($1.6B). Net institutional sentiment: Mixed. In Q2 2026, 1 member of Congress and 146 funds bought MKSI.

262
Holders
(20 Elite)
$26.3B
Total Value
56% (259)
Consensus
146 buying - 113 selling
13F: Insider & Congress: Updated regularly
MKSI

Smart Money Verdict

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Held by 262 funds
20 elite

Who's Trading

Source dates: Price Oct 16, 2026 · Insiders Sep 2, 2026 · Activists Sep 3, 2026 · Congress Nov 21, 2025

ActivistJPMORGAN CHASE & CO.JPMORGAN CHASE & CO.2.9%Sep 3, 2026
InsiderMEMora ElizabethSell $75KSep 1, 2026
InsiderLTLee John Tseng-ChungSell $3.0MAug 14, 2026
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Top Holders

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Action
Increased
6.9M(+4.3%)$3.1B0.0%+65.35%
33
Increased
4.7M(+25.3%)$2.1B0.2%+13.68%
47
Increased
3.7M(+0.6%)$1.6B0.1%-6.87%
32
Increased
3.4M(+60.9%)$1.4B0.1%-19.68%
46
Increased
3M(+1.2%)$1.4B0.0%-7.37%
32
Increased
2.1M(+3.7%)$949.4M0.0%+89.17%
33
Increased
2M(+24.0%)$888.2M1.0%-9.64%
55
Decreased
1.9M(-2.7%)$851.9M0.2%+130.11%
0
Increased
1.9M(+11.2%)$840.6M0.1%+64.31%
35
Decreased
1.5M(-0.0%)$686.6M0.0%+87.34%
0
Decreased
1.5M(-22.5%)$667M0.0%+118.33%
0
Decreased
1.4M(-22.8%)$629.9M0.1%+114.55%
0
Increased
1.4M(+7.0%)$607.7M0.1%-11.75%
34
Decreased
1.3M(-2.7%)$565.5M4.5%-6.36%
0
Decreased
1.2M(-18.7%)$518.2M0.3%+142.31%
0
New
1.1M$476.8M0.6%-51.66%
61
Decreased
928,617(-11.3%)$413M1.3%+32.55%
0
Decreased
808,198(-6.7%)$359.5M0.0%+146.12%
0
Decreased
697,670(-26.3%)$310.3M0.0%+15.18%
0
Increased
681,576(+32.3%)$303.2M0.0%+5.62%
39

Showing 1-20 of 268

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MKSIMKSIMKS INC.

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Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer

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