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MKS (MKSI) Institutional Ownership

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$215.65 -5.85 (-2.64%)
Closing price 11/13/2026 04:00 PM Eastern
Extended Trading
$212.80 -2.85 (-1.32%)
As of 11/13/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for MKS (NASDAQ:MKSI)

Current
Institutional Ownership
Percentage
99.79%
Number of
Institutional Buyers
(last 12 months)
373
Total
Institutional Inflows
(last 12 months)
$2.67B
Number of
Institutional Sellers
(last 12 months)
161
Total
Institutional Outflows
(last 12 months)
$1.76B
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MKSI Institutional Buying and Selling by Quarter

MKS Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/14/2026Marshall Wace LLP135,842$36.05M0.0%-39.7%0.201%
11/13/2026Empowered Funds LLC3,371$895K0.0%-9.2%0.005%
11/13/2026Caxton Associates LLP5,534$1.47M0.0%-9.0%0.008%
11/13/2026Healthcare of Ontario Pension Plan Trust Fund62,100$16.48M0.0%N/A0.092%
11/13/2026Steward Partners Investment Advisory LLC2,417$641K0.0%+75.1%0.004%
11/13/2026 US Asset Management LLC1,192$316K0.2%N/A0.002%
11/13/2026State Board of Administration of Florida Retirement System55,304$14.68M0.0%-0.6%0.082%
11/13/2026Pinnbrook Capital Management LP11,800$3.13M0.4%-7.1%0.017%
11/13/2026Polymer Capital Management US LLC4,048$1.07M0.2%+241.0%0.006%
11/13/2026 Gabelli Funds LLC31,900$8.47M0.1%-0.3%0.047%
11/12/2026 Meeder Advisory Services Inc.5,454$1.45M0.0%+6.0%0.008%
11/12/2026 Benjamin Edwards Inc.788$209K0.0%-29.5%0.001%
11/12/2026 First Trust Advisors LP110,984$29.45M0.0%-29.4%0.164%
11/11/2026 Advisors Asset Management Inc.127$34K0.0%N/A0.000%
11/11/2026 Private Wealth Asset Management LLC1,281$340K0.0%N/A0.002%
11/11/2026 USS Investment Management Ltd3,600$955K0.0%N/A0.005%
11/11/2026 Private Advisor Group LLC2,090$555K0.0%+62.4%0.003%
11/11/2026 Ieq Capital LLC5,393$1.43M0.0%-75.1%0.008%
11/11/2026 Focus Advisor Solutions LLC1,289$342K0.0%-41.6%0.002%
11/11/2026 Independent Advisor Alliance1,261$335K0.0%+33.4%0.002%
11/10/2026 Meeder Asset Management Inc.131$35K0.0%N/A0.000%
11/10/2026 Global Retirement Partners LLC481$128K0.0%-28.6%0.001%
11/10/2026 South Dakota Investment Council24,837$6.59M0.1%+12.7%0.037%
11/10/2026 Rothschild Investment LLC168$45K0.0%-96.5%0.000%
11/10/2026 Cibc World Market Inc.14,330$3.80M0.0%+2,230.1%0.021%
11/10/2026 Edgestream Partners L.P.19,117$5.07M0.1%N/A0.028%
11/10/2026 Banco Santander S.A.2,167$575K0.0%+222.0%0.003%
11/10/2026 First Financial Bankshares Inc19,685$5.22M0.1%N/A0.029%
11/10/2026 Fourier Capital Management Ltd62,986$16.71M23.6%+111.0%0.093%
11/10/2026 HighTower Advisors LLC5,791$1.54M0.0%+4.1%0.009%
11/9/2026 Intech Investment Management LLC21,304$5.65M0.1%+9.5%0.032%
11/9/2026 Hantz Financial Services Inc.6,184$1.64M0.0%+9.8%0.009%
11/9/2026 Royce & Associates LP278,246$73.84M0.7%+6.4%0.411%
11/9/2026 Trillium Asset Management LLC10,730$2.85M0.1%-5.3%0.016%
11/9/2026 Phoenix Financial Ltd.115,824$30.74M0.2%N/A0.171%
11/6/2026 Aberdeen Group plc74,689$19.82M0.0%N/A0.110%
11/6/2026 Allworth Financial LP1,509$400K0.0%+7.6%0.002%
11/6/2026 Russell Investments Group Ltd.70,594$18.73M0.0%+2.6%0.104%
11/6/2026 Eurizon Capital SGR S.p.A.2,631$699K0.0%-15.5%0.004%
11/6/2026 Andar Capital Management HK Ltd14,000$3.72M2.0%N/A0.021%
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11/6/2026 Mitsubishi UFJ Morgan Stanley Securities Co. Ltd.1,361$361K1.0%+260.1%0.002%
11/6/2026 Fifth Third Bancorp21,169$5.62M0.0%+6.4%0.031%
11/5/2026 Maryland State Retirement & Pension System4,288$1.14M0.0%+22.9%0.006%
11/5/2026 Machina Capital S.A.S.5,747$1.53M0.2%N/A0.008%
11/5/2026 Illinois Municipal Retirement Fund3,505$930K0.0%+2.0%0.005%
11/5/2026 Lido Advisors LLC3,678$976K0.0%-23.3%0.005%
11/5/2026 Keybank National Association OH1,628$432K0.0%-6.3%0.002%
11/4/2026 M&G PLC58,776$15.58M0.1%N/A0.087%
11/4/2026 AlphaCore Capital LLC979$260K0.0%-19.0%0.001%
11/4/2026 Retirement Systems of Alabama133,832$35.51M0.1%-8.3%0.198%
11/4/2026 Allspring Global Investments Holdings LLC14,632$3.97M0.0%+1,745.1%0.022%
11/4/2026 Brighton Jones LLC2,386$633K0.0%-15.1%0.004%
11/3/2026 Ethic Inc.11,303$3.00M0.0%-22.6%0.017%
11/3/2026 Pictet Asset Management Holding SA11,465$3.04M0.0%-27.7%0.017%
11/3/2026 Ashton Thomas Private Wealth LLC1,345$357K0.0%+69.2%0.002%
11/3/2026 CenterBook Partners LP22,958$6.09M0.3%N/A0.034%
11/3/2026 Heritage Family Offices LLP234$62K0.0%N/A0.000%
11/2/2026 Inscription Capital LLC1,536$408K0.0%-7.4%0.002%
10/31/2026 Chicago Partners Investment Group LLC3,210$631K0.0%-22.6%0.005%
10/30/2026 TT International Asset Management LTD4,961$1.32M0.1%+267.8%0.007%
10/30/2026 Hiddenite Capital Partners LP45,000$11.94M2.1%+52.5%0.067%
10/29/2026 Sumitomo Mitsui Trust Group Inc.12,056$3.20M0.0%+244.3%0.018%
10/29/2026 Profund Advisors LLC4,719$1.25M0.0%-9.2%0.007%
10/29/2026 ProShare Advisors LLC9,768$2.59M0.0%+33.9%0.014%
10/29/2026 Vise Technologies Inc.9,125$2.42M0.0%+11.1%0.013%
10/29/2026 State of Wyoming6,410$1.70M0.1%+35.3%0.009%
10/28/2026 VIRGINIA RETIREMENT SYSTEMS ET Al27,800$7.38M0.0%+21.4%0.041%
10/28/2026 China Universal Asset Management Co. Ltd.5,950$1.58M0.1%N/A0.009%
10/28/2026 Childress Capital Advisors LLC874$232K0.0%N/A0.001%
10/28/2026 North Dakota State Investment Board2,054$545K0.0%+2.9%0.000%
10/28/2026 VestGen Advisors LLC1,020$271K0.0%-16.4%0.000%
10/27/2026 Victory Financial Group LLC1,187$315K0.0%N/A0.002%
10/26/2026 Park Avenue Securities LLC1,603$425K0.0%+12.5%0.002%
10/26/2026 Verdence Capital Advisors LLC13,594$3.61M0.2%N/A0.020%
10/26/2026 Maxi Investments CY Ltd4,510$1.20M0.2%+130.5%0.007%
10/26/2026 Leo Wealth LLC1,026$272K0.1%N/A0.002%
10/24/2026 Capelight Capital Asset Management LP12,000$3.18M1.3%N/A0.018%
10/23/2026 Evergreen Capital Management LLC3,171$841K0.0%-3.7%0.005%
10/23/2026 Sterling Capital Management LLC8,216$2.18M0.0%-36.8%0.012%
10/23/2026 Inspire Investing LLC15,352$4.07M0.2%+390.9%0.023%
10/22/2026 Yousif Capital Management LLC17,579$4.67M0.1%-5.8%0.026%
10/22/2026 Brookstone Capital Management1,188$315K0.0%-83.1%0.002%
10/22/2026 Root Financial Partners LLC302$80K0.0%N/A0.000%
10/22/2026 Reyes Financial Architecture Inc.240$64K0.0%N/A0.000%
10/21/2026 Cooke & Bieler LP181,089$48.05M0.7%+9.6%0.268%
10/21/2026 Crossmark Global Holdings Inc.4,428$1.18M0.0%+14.5%0.007%
10/21/2026 Capstone Capital Management Ltd15,817$4.20M1.7%+283.6%0.023%
10/21/2026 Nisa Investment Advisors LLC18,781$4.98M0.0%+1.5%0.028%
10/21/2026 Robeco Institutional Asset Management B.V.80,051$21.24M0.0%N/A0.118%
10/20/2026 DUTCH ASSET Corp2,530$672K0.3%N/A0.004%
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10/19/2026 LexAurum Advisors LLC1,200$318K0.0%N/A0.002%
10/17/2026 IFP Advisors Inc359$95K0.0%-17.3%0.001%
10/16/2026 TD Waterhouse Canada Inc.279$76K0.0%+9,200.0%0.000%
10/16/2026 Pension & Wealth Management Advisors Inc.1,829$485K0.1%N/A0.003%
10/15/2026 V Square Quantitative Management LLC183$49K0.0%+64.9%0.000%
10/15/2026 Assenagon Asset Management S.A.442,273$117.36M0.1%+1,742.1%0.654%
10/15/2026 State of Alaska Department of Revenue6,409$1.70M0.0%-3.2%0.009%
10/15/2026 Loftus Peak Pty Ltd57,593$15.28M1.8%+21.4%0.085%
10/14/2026 First Citizens Bank & Trust Co.2,166$575K0.0%N/A0.003%
10/13/2026 NorthCrest Asset Manangement LLC1,262$329K0.0%+19.5%0.002%


MKSI Institutional Ownership - Frequently Asked Questions

During the previous two years, 615 institutional investors and hedge funds held shares of MKS. The most heavily invested institutionals were Vanguard Group Inc. ($1.20B), Capital International Investors ($517.63M), FMR LLC ($440.66M), Price T Rowe Associates Inc. MD ($440.07M), Victory Capital Management Inc. ($409.47M), Wellington Management Group LLP ($260.49M), and Neuberger Berman Group LLC ($233.50M).Learn more on MKS's institutional investors.

99.79% of MKS's stock is owned by institutional investors. Learn more on MKSI's institutional investor holdings.

Of the 550 institutional investors that purchased MKS's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Norges Bank ($2.60M), Millennium Management LLC ($1.14M), Channing Capital Management LLC ($991.30K), Wellington Management Group LLP ($965.32K), Madison Investment Advisors LLC ($933.94K), Westfield Capital Management Co. LP ($839.77K), and Bank of America Corp DE ($822.07K).

Institutional investors have bought a total of 10,659,096 shares in the last 24 months. This purchase volume represents approximately $2.67B in transactions.

Of the 158 institutional investors that sold MKS's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Royal Bank of Canada ($1.16M), Victory Capital Management Inc. ($1.02M), Nordea Investment Management AB ($996.60K), Price T Rowe Associates Inc. MD ($879.17K), Madison Asset Management LLC ($637.76K), Dimensional Fund Advisors LP ($430.02K), and Cooke & Bieler LP ($355.17K).

Institutional investors have sold a total of 9,552,599 shares in the last 24 months. This volume of shares sold represents approximately $1.76B in transactions.


Related Companies

Institutional ownership data for NASDAQ:MKSI is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 11/14/2026. New 13F filings are added each quarter as they're published.
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