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Disclosery

MKSI MKS INC.

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Stock (common), issuer CIK 1049502

755 managers (777 13F filers) reported a position in MKSI shares at 2026-06-30, 70,868,101 shares in all. 208 filers opened a position and 53 filers sold out during the quarter.

Managers
755
13F filers
777
New
208
Added
242
Reduced
254
Sold out
53
Shares held by filers
70,868,101

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
West Family Investments, Inc.482$214K0.06%new13F-HRTimeline
WESTWOOD HOLDINGS GROUP INCin group WESTWOOD HOLDINGS GROUP INC480$214K<0.01%new13F-HRTimelineGroup
McAdam, LLC478$213K0.01%new13F-HRTimeline
Emerald Advisors, LLC475$211K0.03%new13F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp463$206K<0.01%+113F-HRTimelineGroup
Quarry LP462$205K0.03%new13F-HRTimeline
Krane Funds Advisors LLC460$205K0.01%new13F-HRTimeline
Sciencast Management LP457$203K0.04%new13F-HRTimeline
Western Wealth Management, LLC450$200K0.01%new13F-HRTimeline
IFP Advisors, Inc434$193K<0.01%+24513F-HRTimeline
Geneos Wealth Management Inc.430$191K<0.01%013F-HRTimeline
STEPH & CO422$188K0.05%-54013F-HRTimeline
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD416$185K<0.01%new13F-HRTimelineGroup
Truvestments Capital LLC297$132K0.02%-2213F-HRTimeline
Salomon & Ludwin, LLC295$121K0.01%-9213F-HRTimeline
Northwest & Ethical Investments L.P.288$120K<0.01%-48013F-HRTimeline
Estabrook Capital Management250$111K0.02%013F-HRTimeline
Coston, McIsaac & Partners239$106K0.02%013F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH266$103K<0.01%013F-HRTimelineGroup
SUMMIT SECURITIES GROUP LLC226$101K0.02%new13F-HRTimeline
Covestor Ltd217$97K0.06%013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK212$94.3K<0.01%+4613F-HRTimelineGroup
SJS Investment Consulting Inc.205$91.2K0.01%-2513F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV198$88.2K<0.01%+2513F-HRTimeline
Measured Wealth Private Client Group, L…196$87.2K0.02%+10013F-HRTimeline
True Wealth Design, LLC192$85.4K0.02%+3013F-HRTimeline
Fortitude Family Office, LLC184$81.8K0.02%+7013F-HRTimeline
First Bancorp, Inc /ME/161$71.6K0.03%new13F-HRTimeline
Clearstead Advisors, LLC160$71.2K<0.01%+10513F-HRTimeline
Smithfield Trust Co155$69K<0.01%013F-HRTimeline
LRI Investments, LLC144$64.2K0.01%+10813F-HRTimeline
Capital Advisors, Ltd. LLC137$61K0.01%013F-HRTimeline
SBI Securities Co., Ltd.137$60.9K<0.01%+5913F-HRTimeline
Parkside Financial Bank & Trust133$59.2K<0.01%-4813F-HRTimeline
Physician Wealth Advisors, Inc.122$54.3K0.01%+213F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC142$49.6K<0.01%-313F-HRTimeline
V-Square Quantitative Management LLC111$49.4K<0.01%+1513F-HRTimeline
Owl Creek Wealth Partners LLC108$48K0.01%+2013F-HRTimeline
Basecamp Wealth Advisors LLC108$48K0.01%+2413F-HRTimeline
Bell Investment Advisors, Inc106$47.1K0.01%-213F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC105$46.7K<0.01%013F-HRTimeline
CITY HOLDING CO102$45.4K0.01%013F-HRTimeline
Kemnay Advisory Services Inc.99$44K0.01%+1513F-HRTimeline
Quent Capital, LLC94$41.9K<0.01%-313F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…89$39.6K<0.01%+5013F-HRTimelineGroup
Rakuten Securities, Inc.in group Rakuten Group, Inc.89$39.6K0.01%-6613F-HRTimelineGroup
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…88$39K<0.01%new13F-HRTimelineGroup
Carolina Wealth Advisors, LLC87$38.7K0.02%+2813F-HRTimeline
Bare Financial Services, Inc86$38.3K0.01%+3313F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO85$37.8K<0.01%013F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC82$36.5K<0.01%+1113F-HRTimelineGroup
Ancora Advisors LLCin group Ancora Advisors LLC82$36.5K<0.01%-1813F-HRTimelineGroup
Clearstead Trust, LLC82$36.5K<0.01%013F-HRTimeline
Wealth Enhancement Trust Services, Inc.82$36.5K<0.01%+4813F-HR/ATimeline
Westend Capital Management, LLC80$35.6K0.01%+513F-HRTimeline
Accordant Advisory Group Inc78$34.7K0.02%013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…84$34.4K<0.01%+3313F-HRTimeline
AdvisorNet Financial, Inc76$33.8K<0.01%+7513F-HRTimeline
Essential Partners LLC74$32.9K0.02%+4113F-HRTimeline
Silver Grove Financial Group, Inc.73$32.5K0.02%new13F-HRTimeline
CVA Family Office, LLC68$30.2K<0.01%+313F-HRTimeline
Rossby Financial, LCC67$29.8K0.01%+213F-HRTimeline
HARBOUR INVESTMENTS, INC.63$28K<0.01%+613F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…59$26.2K<0.01%013F-HRTimelineGroup
Allied Private Wealth LLC74$25.9K0.02%13F-HRTimeline
Keating Financial Advisory Services, In…56$24.9K<0.01%+713F-HRTimeline
OSSIAM54$24K<0.01%new13F-HRTimeline
CX Institutional53$24K<0.01%013F-HRTimeline
JDM Financial Group LLC52$23.1K0.01%013F-HRTimeline
ROGCO, LP51$22.7K0.01%013F-HRTimeline
Bogart Wealth, LLC47$20.9K<0.01%+2413F-HRTimeline
FIDUCIARY FINANCIAL ADVISORS49$20.5K<0.01%new13F-HRTimeline
Cornerstone Financial Management LLC46$20.5K0.02%+1713F-HR/ATimeline
Avion Wealth45$20K<0.01%+513F-HRTimeline
Strive Financial Group ,LLC44$19.6K0.01%013F-HR/ATimeline
FIRST HORIZON CORP43$19.1K<0.01%new13F-HRTimeline
CoreCap Advisors, LLC43$19.1K<0.01%+213F-HRTimeline
UNION SAVINGS BANK43$19.1K0.01%013F-HRTimeline
Hilltop National Bank42$18.7K<0.01%new13F-HRTimeline
Park Place Capital Corp40$17.8K<0.01%013F-HRTimeline
Sachetta, LLC38$16.9K0.01%+3013F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC34$15.1K<0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC33$14.7K<0.01%+213F-HRTimeline
Cassaday & Co Wealth Management LLC32$14.3K<0.01%013F-HRTimeline
Rialto Wealth Management, LLC32$14.2K<0.01%+1513F-HRTimeline
Aventura Private Wealth, LLC32$14.2K<0.01%013F-HRTimeline
Acumen Wealth Advisors, LLC27$12K<0.01%-1013F-HRTimeline
Cornerstone Planning Group LLC33$11.4K<0.01%-113F-HRTimeline
Grove Bank & Trust25$11.1K<0.01%+1513F-HRTimeline
Fairman Group, LLC24$10.7K0.01%013F-HRTimeline
IMA Advisory Services, Inc.22$9.79K<0.01%+413F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC22$9.79K<0.01%+2113F-HRTimeline
Prestige Wealth Management Group LLC22$9.79K<0.01%013F-HRTimeline
JPL Wealth Management, LLC22$9.79K<0.01%013F-HRTimeline
PRIVATE TRUST CO NA21$9.34K<0.01%-1113F-HRTimeline
J.Safra Asset Management Corp21$9.34K<0.01%-413F-HRTimeline
Quest 10 Wealth Builders, Inc.21$9.34K0.01%013F-HRTimeline
Hughes Financial Services, LLC20$8.9K<0.01%+413F-HRTimeline
Sunrise Financial Services, LLC20$8.9K0.01%013F-HRTimeline
Private Wealth Management Group, LLC19$8.45K<0.01%013F-HRTimeline
Cromwell Holdings LLC19$8.45K<0.01%+613F-HRTimeline
Bruce G. Allen Investments, LLC19$8.45K0.01%-213F-HRTimeline
EFG International AGin group EFG International AG19$8.45K<0.01%new13F-HRTimelineGroup
Colonial Trust Co / SCin group Colonial Trust Advisors18$8.03K<0.01%+513F-HRTimelineGroup
LANARK FINANCIAL, INC.18$8.01K<0.01%+113F-HRTimeline
Gleason Group, Inc.18$8.01K<0.01%new13F-HRTimeline
North Star Investment Management Corp.17$7.56K<0.01%013F-HRTimeline
Retirement Wealth Solutions LLC17$7.56K<0.01%-113F-HRTimeline
Synergy Investment Management, LLC17$7.56K<0.01%new13F-HRTimeline
MV CAPITAL MANAGEMENT, INC.16$7.12K<0.01%013F-HR/ATimeline
RAFFA WEALTH MANAGEMENT, LLC15$6.67K<0.01%+813F-HRTimeline
ALBION FINANCIAL GROUP /UT14$6.23K<0.01%013F-HRTimeline
Bay Harbor Wealth Management, LLC14$6.23K<0.01%+213F-HRTimeline
Creative Capital Management Investments…14$6.23K<0.01%new13F-HRTimeline
Caitlin John, LLC14$6.23K<0.01%new13F-HRTimeline
Quaker Wealth Management, LLC13$5.78K<0.01%+113F-HRTimeline
DiNuzzo Private Wealth, Inc.13$5.78K<0.01%013F-HRTimeline
WPG Advisers, LLC13$5.78K<0.01%+113F-HRTimeline
MONTAG A & ASSOCIATES INC12$5.18K<0.01%+713F-HRTimeline
Principia Wealth Advisory, LLC10$4.45K<0.01%013F-HRTimeline
Kilter Group LLC10$4.45K<0.01%-113F-HRTimeline
HFM Investment Advisors, LLC10$4.45K<0.01%+513F-HRTimeline
United Financial Planning Group LLC10$4.45K<0.01%013F-HRTimeline
DecisionPoint Financial, LLC10$4.11K<0.01%+213F-HRTimeline
MATHER GROUP, LLC.9$4K<0.01%new13F-HRTimeline
Dogwood Wealth Management LLC8$3.56K<0.01%new13F-HRTimeline
Signature Equity Partners, LLC8$3.56K<0.01%-113F-HRTimeline
Dunhill Financial, LLC7$3.15K<0.01%013F-HRTimeline
PITTENGER & ANDERSON INC7$3.11K<0.01%new13F-HRTimeline
Stone House Investment Management, LLC7$3.11K<0.01%+213F-HRTimeline
N.E.W. Advisory Services LLC7$3.11K<0.01%new13F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management7$3.11K<0.01%new13F-HRTimelineGroup
Activest Wealth Management6$2.67K<0.01%013F-HRTimeline
Tidemark, LLC6$2.67K<0.01%-413F-HRTimeline
Atlantic Private Wealth, LLC5$2.23K<0.01%013F-HRTimeline
WEST PACES ADVISORS INC.5$2.22K<0.01%new13F-HRTimeline
Plante Moran Financial Advisors, LLC4$1.78K<0.01%new13F-HRTimeline
IFG Advisory, LLC3$1.33K<0.01%new13F-HRTimeline
SHP Wealth Management3$1.33K<0.01%new13F-HRTimeline
AMERIFLEX GROUP, INC.3$1.33K<0.01%new13F-HRTimeline
Planning Strategies Inc.3$1.33K<0.01%13F-HRTimeline
TD Waterhouse Canada Inc.3$1.23K<0.01%-513F-HRTimeline
Navigoe, LLC3$1K<0.01%new13F-HRTimeline
American Capital Advisory, LLC2$890<0.01%new13F-HRTimeline
Downshift Financial, LLC2$890<0.01%new13F-HRTimeline
PEAK6 LLCin group PEAK6 LLC1$625<0.01%new13F-HRTimelineGroup
VALLEY NATIONAL ADVISERS INC1$445<0.01%new13F-HRTimeline
MOTCO1$445<0.01%new13F-HRTimeline
High Note Wealth, LLC1$445<0.01%new13F-HRTimeline
Davis Capital Management1$445<0.01%new13F-HRTimeline
TFC Financial Management, Inc.1$445<0.01%013F-HRTimeline
MARYLAND CAPITAL ADVISORS INC.1$445<0.01%13F-HRTimeline
IMG Wealth Management, Inc.1$445<0.01%new13F-HRTimeline
3 FACTOR INDEXING, LLC1$445<0.01%013F-HRTimeline
Raleigh Capital Management Inc.0$118<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.