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Disclosery

MKSI MKS INC.

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Stock (common), issuer CIK 1049502

501 managers (516 13F filers) reported a position in MKSI shares at 2025-12-31, 70,548,725 shares in all. 108 filers opened a position and 41 filers sold out during the quarter.

Managers
501
13F filers
516
New
108
Added
177
Reduced
146
Sold out
41
Shares held by filers
70,548,725

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Estabrook Capital Management250$40K0.01%013F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC216$39.6K<0.01%013F-HRTimeline
SJS Investment Consulting Inc.243$38.8K<0.01%+213F-HRTimeline
Coston, McIsaac & Partners239$38K0.01%013F-HRTimeline
Arax Advisory Partners217$34.7K<0.01%-1,60413F-HRTimeline
Steward Partners Investment Advisory, L…213$34K<0.01%013F-HRTimeline
Elequin Capital, LP176$28.1K<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust172$27.5K<0.01%+2113F-HRTimeline
IFP Advisors, Inc172$27.5K<0.01%+14813F-HRTimeline
Global Retirement Partners, LLC165$26.4K<0.01%+14013F-HRTimeline
USA FINANCIAL FORMULAS164$26.2K<0.01%new13F-HRTimeline
Wilmington Savings Fund Society, FSB157$25.1K<0.01%013F-HRTimeline
Smithfield Trust Co155$25K<0.01%013F-HRTimeline
Root Financial Partners, LLC141$22.5K<0.01%+2813F-HRTimeline
Capital Advisors, Ltd. LLC137$22K<0.01%013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK125$20K<0.01%-1513F-HRTimelineGroup
Physician Wealth Advisors, Inc.120$19.2K<0.01%013F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV118$18.9K<0.01%+10013F-HRTimeline
SageView Advisory Group, LLC117$18.7K<0.01%new13F-HRTimeline
AdvisorNet Financial, Inc115$18.4K<0.01%013F-HRTimeline
Torren Management, LLC106$17K0.01%13F-HRTimeline
Bell Investment Advisors, Inc106$16.9K<0.01%+4113F-HRTimeline
CITY HOLDING CO102$16.3K<0.01%new13F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC96$15.3K<0.01%013F-HRTimeline
Quent Capital, LLC92$14.7K<0.01%+2613F-HRTimeline
Fortitude Family Office, LLC89$14.2K<0.01%+213F-HRTimeline
True Wealth Design, LLC83$13.3K<0.01%+413F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC82$13.1K<0.01%new13F-HRTimelineGroup
Clearstead Trust, LLC82$13.1K<0.01%013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC77$12.3K<0.01%+2113F-HRTimelineGroup
DV Trading LLC72$11.5K<0.01%13F-HRTimeline
CBIZ Investment Advisory Services, LLC72$11.5K<0.01%new13F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…69$11K<0.01%new13F-HRTimeline
Rossby Financial, LCC62$9.91K<0.01%new13F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…59$9.43K<0.01%+313F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC52$8.31K<0.01%+2613F-HRTimeline
Keating Financial Advisory Services, In…51$8.15K<0.01%13F-HRTimeline
Bare Financial Services, Inc50$7.99K<0.01%013F-HRTimeline
Bravera Wealth50$7.99K<0.01%13F-HRTimeline
Medallion Wealth Advisors, LLC50$7.99K<0.01%new13F-HRTimeline
Cornerstone Planning Group LLC30$7.11K<0.01%013F-HRTimeline
Elyxium Wealth, LLC44$7.03K<0.01%new13F-HRTimeline
UNION SAVINGS BANK43$6.87K<0.01%13F-HRTimeline
CoreCap Advisors, LLC41$6.55K<0.01%013F-HRTimeline
Park Place Capital Corp40$6.39K<0.01%new13F-HRTimeline
IMA Advisory Services, Inc.39$6.23K<0.01%+3513F-HRTimeline
Avion Wealth40$6K<0.01%-1313F-HRTimeline
Acumen Wealth Advisors, LLC37$5.91K<0.01%13F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…36$5.75K<0.01%-113F-HRTimelineGroup
ELEVATION WEALTH PARTNERS, LLC34$5.43K<0.01%+2313F-HRTimeline
Wealth Enhancement Trust Services, Inc.34$5.43K<0.01%13F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors34$5.38K<0.01%013F-HRTimelineGroup
Aventura Private Wealth, LLC32$5.11K<0.01%013F-HRTimeline
ORG Partners LLC31$4.95K<0.01%new13F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…30$4.79K<0.01%new13F-HRTimeline
Financial Network Wealth Advisors LLC29$4.63K<0.01%013F-HRTimeline
Cornerstone Financial Management LLC29$4.63K<0.01%13F-HR/ATimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO27$4.32K<0.01%new13F-HRTimelineGroup
Fairman Group, LLC24$3.83K<0.01%new13F-HRTimeline
Bogart Wealth, LLC23$3.67K<0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC22$3.52K<0.01%+1413F-HRTimeline
Prestige Wealth Management Group LLC22$3.52K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.22$3.52K<0.01%-1813F-HRTimeline
Essential Partners LLC22$3.52K<0.01%new13F-HRTimeline
Bruce G. Allen Investments, LLC21$3.36K<0.01%013F-HRTimeline
Strategic Wealth Partners, Ltd.21$3.28K<0.01%013F-HRTimeline
J.Safra Asset Management Corp20$3.2K<0.01%+513F-HRTimeline
Retirement Wealth Solutions LLC20$3.2K<0.01%013F-HRTimeline
Sunrise Financial Services, LLC20$3.2K<0.01%13F-HRTimeline
Private Wealth Management Group, LLC19$3.04K<0.01%013F-HRTimeline
Hughes Financial Services, LLC18$2.88K<0.01%-513F-HRTimeline
North Star Investment Management Corp.17$2.72K<0.01%new13F-HRTimeline
LANARK FINANCIAL, INC.17$2.72K<0.01%013F-HRTimeline
MV CAPITAL MANAGEMENT, INC.16$2.56K<0.01%013F-HRTimeline
Sunbelt Securities, Inc.14$2.24K<0.01%013F-HRTimeline
Quarry LP13$2.08K<0.01%-11213F-HRTimeline
Quaker Wealth Management, LLC12$1.92K<0.01%013F-HRTimeline
Rakuten Securities, Inc.in group Rakuten Group, Inc.12$1.92K<0.01%new13F-HRTimelineGroup
WPG Advisers, LLC12$1.92K<0.01%-413F-HRTimeline
Rialto Wealth Management, LLC11$1.76K<0.01%+113F-HRTimeline
Basecamp Wealth Advisors LLC11$1.76K<0.01%13F-HRTimeline
Cromwell Holdings LLC10$1.6K<0.01%013F-HRTimeline
Principia Wealth Advisory, LLC10$1.6K<0.01%013F-HRTimeline
United Financial Planning Group LLC10$1.6K<0.01%new13F-HRTimeline
Signature Equity Partners, LLC9$1.44K<0.01%13F-HRTimeline
DecisionPoint Financial, LLC8$1.28K<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.7$1.12K<0.01%+113F-HRTimeline
GROUP ONE TRADING LLC6$959<0.01%new13F-HRTimeline
MCGUIRE CAPITAL ADVISORS INC6$959<0.01%13F-HRTimeline
Bay Harbor Wealth Management, LLC6$958<0.01%+213F-HRTimeline
Atlantic Private Wealth, LLC5$800<0.01%new13F-HRTimeline
DiNuzzo Private Wealth, Inc.5$799<0.01%+213F-HRTimeline
Kilter Group LLC4$640<0.01%new13F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK3$519<0.01%new13F-HRTimelineGroup
HFM Investment Advisors, LLC3$480<0.01%013F-HRTimeline
Dunhill Financial, LLC1$171<0.01%new13F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC1$160<0.01%new13F-HRTimeline
Stone House Investment Management, LLC1$160<0.01%new13F-HRTimeline
TFC Financial Management, Inc.1$160<0.01%new13F-HRTimeline
ROSS\JOHNSON & Associates LLC1$160<0.01%new13F-HRTimeline
Raleigh Capital Management Inc.0$42<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.