Who Owns MKS Inc. (MKSI)?Hedge Fund & Institutional Holders

$213.66+0.17 (+0.08%)TechnologyNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$1.1131115700005525e+265T

% of Float Held

Infinity%

QoQ Change in Holders

+14 / -0

Price History

$58.78$109.82$160.86$211.90$262.94Aug 24Jun 25Mar 26

MKSI — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
COOKE & BIELER LPNew Position+967K+$154.5M
NORGES BANKNew Position+923K+$147.0M
PRINCIPAL FINANCIAL GROUP INCNew Position+766K+$122.4M
Bank of New York Mellon CorpNew Position+789K+$119.0M
NORDEA INVESTMENT MANAGEMENT ABNew Position+600K+$96.6M
Southpoint Capital Advisors LPNew Position+600K+$95.9M
Polaris Capital Management, LLCNew Position+265K+$42.4M
Defiance ETFs, LLCNew Position+238K+$38.5M
Penserra Capital Management LLCNew Position+238K+$38.0M
CRAMER ROSENTHAL MCGLYNN LLCNew Position+231K+$36.9M
Mizuho Markets Cayman LPNew Position+175K+$28.0M
Retirement Systems of AlabamaNew Position+157K+$25.0M
NEW YORK STATE COMMON RETIREMENT FUNDNew Position+151K+$24.0M
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.New Position+151K+$24.0M
NATIXIS ADVISORS, LLCIncreased+41K+$23.4M

MKSI — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
VANGUARD GROUP INCDecreased-265K-$958.3B
VICTORY CAPITAL MANAGEMENT INCDecreased-1.0M-$443.0B
FMR LLCDecreased-245K-$425.7B
Capital International InvestorsDecreased-15K-$402.3B
WELLINGTON MANAGEMENT GROUP LLPDecreased-462K-$372.6B
STATE STREET CORPDecreased-26K-$252.7B
Neuberger Berman Group LLCDecreased-174K-$202.1B
FRANKLIN RESOURCES INCDecreased-367K-$174.2B
DIMENSIONAL FUND ADVISORS LPDecreased-148K-$156.4B
FRONTIER CAPITAL MANAGEMENT CO LLCDecreased-530K-$133.7B
Point72 Asset Management, L.P.Decreased-388K-$125.3B
Madison Asset Management, LLCDecreased-55K-$120.7B
BALYASNY ASSET MANAGEMENT L.P.Decreased-339K-$105.2B
ROYCE & ASSOCIATES LPDecreased-211K-$102.3B
MANUFACTURERS LIFE INSURANCE COMPANY, THEDecreased-217K-$101.8B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1VANGUARD GROUP INC6,965,652$1.1B0.02%Share
2BlackRock, Inc.3,567,488$570.0M0.01%Share
3Invesco Ltd.3,457,343$552.5M0.08%Share
4Capital International Investors3,239,230$517.0M0.08%Share
5PRICE T ROWE ASSOCIATES INC /MD/2,600,683$415.0M0.04%Share
6FMR LLC2,542,869$406.0M0.02%Share
7VICTORY CAPITAL MANAGEMENT INC2,441,799$390.0M0.22%Share
8STATE STREET CORP2,017,590$322.0M0.01%Share
9WELLINGTON MANAGEMENT GROUP LLP1,915,212$306.0M0.05%Share
10BlackRock, Inc.1,911,503$305.0M0.01%Share
11Neuberger Berman Group LLC1,449,117$231.0M0.17%Share
12JPMORGAN CHASE & CO1,435,957$229.0M0.01%Share
13FRANKLIN RESOURCES INC1,037,390$165.0M0.04%Share
14GEODE CAPITAL MANAGEMENT, LLC1,018,337$162.0M0.01%Share
15DIMENSIONAL FUND ADVISORS LP973,921$155.0M0.03%Share
16COOKE & BIELER LP966,703$154.5M1.61%Share
17Madison Asset Management, LLC921,450$147.2M1.69%Share
18NORGES BANK922,737$147.0M0.02%Share
19UBS Group AG907,200$145.0M0.02%Call
20CHARLES SCHWAB INVESTMENT MANAGEMENT INC870,654$139.0M0.02%Share
21WESTFIELD CAPITAL MANAGEMENT CO LP839,773$134.0M0.56%Share
22MILLENNIUM MANAGEMENT LLC817,251$130.0M0.05%Share
23PRINCIPAL FINANCIAL GROUP INC641,160$102.5M0.05%Share
24Point72 Asset Management, L.P.625,799$100.0M0.11%Share
25ROYCE & ASSOCIATES LP616,605$98.5M1.00%Share
26MANUFACTURERS LIFE INSURANCE COMPANY, THE606,214$96.0M0.08%Share
27Southpoint Capital Advisors LP600,000$95.9M2.23%Share
28FRONTIER CAPITAL MANAGEMENT CO LLC550,735$88.0M0.93%Share
29JANE STREET GROUP, LLC539,300$86.0M0.01%Call
30Channing Capital Management, LLC531,179$84.9M2.18%Share
31NATIXIS ADVISORS, LLC522,415$83.0M0.12%Share
32BALYASNY ASSET MANAGEMENT L.P.511,620$81.0M0.10%Share
33NORTHERN TRUST CORP449,429$71.0M0.01%Share
34FMR LLC448,454$71.0M0.00%Share
35Blue Grotto Capital, LLC415,500$66.4M6.82%Share
36VANGUARD GROUP INC408,425$65.3M0.00%Share
37AMERICAN CENTURY COMPANIES INC397,564$63.0M0.03%Share
38CITADEL ADVISORS LLC399,439$63.0M0.01%Share
39SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC381,500$61.0M1.27%Share
40NOMURA HOLDINGS INC364,033$58.0M0.08%Share
41WELLINGTON MANAGEMENT GROUP LLP360,239$57.0M0.01%Share
42BARCLAYS PLC335,585$53.0M0.01%Share
43Delta Global Management LP327,390$52.0M2.41%Share
44NORDEA INVESTMENT MANAGEMENT AB312,727$50.4M0.04%Share
45VALUE HOLDINGS MANAGEMENT CO. LLC297,714$47.6M7.96%Share
46Harvey Partners, LLC289,197$46.2M4.10%Share
47MORGAN STANLEY288,919$46.0M0.00%Share
48UBS Group AG282,139$45.1M0.01%Share
49Park West Asset Management LLC278,614$44.5M3.70%Share
50Polaris Capital Management, LLC265,100$42.4M3.51%Share

MKSI Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025509$11.1B+209
Q3 2025300$7.4T-37
Q2 2025337$4.8T-54
Q1 2025391$5.2T+7
Q4 2024384$83.1T+53
Q3 2024331$4613.7T+0
Q2 2024331$4852.4T+54
Q1 2024277$4616.5T—

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As of Q4 2025, 50 institutional investors hold MKSI (MKS Inc.). The largest holder is VANGUARD GROUP INC with $1.1B in shares. This quarter, 14 institutions opened new positions and 0 closed their positions.

Frequently Asked Questions

How many hedge funds own MKSI?

As of Q4 2025, 50 institutional investors report holding MKSI (MKS Inc.) in their 13F filings.

Who is the largest institutional holder of MKSI?

The largest institutional holder of MKSI is VANGUARD GROUP INC with $1.1B in shares.

Is institutional ownership of MKSI increasing or decreasing?

This quarter, 14 institutions opened new positions in MKSI and 0 closed their positions.