MKS INC. (MKSI) is held by institutional investors who disclose positions via SEC 13F filings. View the full list of institutional holders on HoldingsIntel.

Are institutions buying or selling MKSI?

HoldingsIntel tracks quarter-over-quarter changes in institutional positions for MKS INC., showing new buyers, position increases, decreases, and exits with conviction-weighted sentiment.

What is the Smart Money Verdict on MKSI?

The Smart Money Verdict combines four independent signals (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for MKS INC..

Is institutional money flowing into MKSI?

221 institutional investors hold MKS INC. (MKSI). View detailed buyer/seller breakdown on HoldingsIntel.

What do hedge funds think about MKSI?

Track institutional sentiment and conviction scores for MKS INC. (MKSI) including Smart Money Verdict and position changes on HoldingsIntel.

MKS INC.

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

221

Holders

Avg rating(18 Elite)

$11.1B

Total Value

52% (236)

Fund Consensus

119 buying - 110 selling

Smart Money Verdict

View all

44Weak MomentumSplit Signals

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See how MKSI's score breaks down across 4 SEC sources

Held by 221 funds

18 elite

Who's Trading

InsiderCICANNONE PETER IIISell $410KMay 18, 2026

13F: Mar 31, 2026Insider & Congress: Updated regularly

InsiderBFBurke Kathleen FlahertySell $1.4MMay 11, 2026

Activist

FMR LLC3.3%May 6, 2026

ActivistVAVanguard Capital Management5.2%Apr 30, 2026

Congress

Rohit KhannaBuy $1,001 - $15,000Dec 5, 2025

Congress

Lisa McClainSale $1,001 - $15,000Oct 31, 2025

Congress

Lisa McClainSale $1,001 - $15,000Oct 30, 2025

Congress

Lisa McClainBuy $1,001 - $15,000Oct 30, 2025

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	6.6M(+8.2%)	$1.5B	0.0%	+167.18%	35
Invesco Ltd.	Decreased	3.7M(-3.5%)	$855.2M	0.1%	+131.91%	0
STATE STREET CORP	Increased	2.1M(+2.0%)	$472.9M	0.0%	+187.66%	32
Capital International Investors	Decreased	2M(-39.2%)	$452.4M	0.1%	+222.19%	0
FMR LLC	Decreased	1.9M(-39.5%)	$444.4M	0.0%	+192.62%	0
JPMORGAN CHASE & CO	Increased	2.1M(+35.1%)	$441.2M	0.0%	+87.49%	40
WELLINGTON MANAGEMENT GROUP LLP	Decreased	1.8M(-28.2%)	$421.3M	0.1%	+215.45%	0
Point72 Asset Management, L.P.	Increased	1.6M(+157.3%)	$370.1M	0.5%	+59.29%	60
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.5M(+22.8%)	$353.8M	0.0%	+161.58%	38
Neuberger Berman Group LLC	Decreased	1.4M(-1.9%)	$329.4M	0.3%	+238.63%	0
Whale Rock Capital Management LLC	New	1.3M	$300.3M	3.9%	+29.85%	87
Capital World Investors	New	1.3M	$293.5M	0.0%	+29.85%	43
WESTFIELD CAPITAL MANAGEMENT CO LP	Increased	1M(+24.6%)	$240.6M	1.0%	+84.71%	59
CITADEL ADVISORS LLC	Increased	947,032(+106.8%)	$217.6M	0.0%	+59.67%	49
MILLENNIUM MANAGEMENT LLC	Increased	894,369(+9.4%)	$205.5M	0.1%	+104.19%	34
VICTORY CAPITAL MANAGEMENT INC	Decreased	878,758(-65.7%)	$201.9M	0.1%	+183.54%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	866,647(-0.5%)	$199.2M	0.0%	+244.69%	0
DIMENSIONAL FUND ADVISORS LP	Decreased	835,345(-25.3%)	$191.9M	0.0%	+194.63%	0
Bank of New York Mellon Corp	Increased	832,150(+5.5%)	$191.2M	0.0%	+129.07%	32
PRINCIPAL FINANCIAL GROUP INC	Decreased	614,230(-19.8%)	$141.2M	0.1%	+185.71%	0

MKS INC.

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