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MKS Inc

MKSI
Exchange
Nasdaq
Industry
Industrial Instruments For Measurement, Display, and Control
SEC CIK
0001049502

In the last 90 days, MKS Inc insiders filed 0 open-market purchases and 3 sales; 777 institutions reported holding it in 13F filings for Q2 2026, worth $31.3B in total; Maverick Capital is the only superinvestor holding it.

13F holders, Q4 2025

Institutional positions in MKS Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
516
+90 vs. Q3 2025
Shares held
70.5M
−1.40M (−2.0%) vs. Q3 2025
Total value
$11.3B
+$2.37B (+26.7%) vs. Q3 2025
New holders
131
177 more added
Sold out
41
146 more reduced

9 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MKSI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 516 institutions
Q1 2021: 351 institutionsQ2 2021: 376 institutionsQ3 2021: 376 institutionsQ4 2021: 405 institutionsQ1 2022: 399 institutionsQ2 2022: 375 institutionsQ3 2022: 358 institutionsQ4 2022: 316 institutionsQ1 2023: 325 institutionsQ2 2023: 320 institutionsQ3 2023: 324 institutionsQ4 2023: 325 institutionsQ1 2024: 343 institutionsQ2 2024: 397 institutionsQ3 2024: 410 institutionsQ4 2024: 420 institutionsQ1 2025: 397 institutionsQ2 2025: 396 institutionsQ3 2025: 435 institutionsQ4 2025: 516 institutionsQ1 2026: 621 institutionsQ2 2026: 777 institutions
Value heldQ4 2025: $11.3B
Q1 2021: $9.83BQ2 2021: $9.28BQ3 2021: $7.93BQ4 2021: $9.34BQ1 2022: $8.06BQ2 2022: $5.46BQ3 2022: $4.84BQ4 2022: $5.74BQ1 2023: $5.94BQ2 2023: $7.32BQ3 2023: $5.80BQ4 2023: $6.88BQ1 2024: $9.16BQ2 2024: $9.02BQ3 2024: $7.37BQ4 2024: $7.36BQ1 2025: $5.73BQ2 2025: $7.42BQ3 2025: $8.91BQ4 2025: $11.3BQ1 2026: $15.8BQ2 2026: $31.3B
Institutions holding MKSI and their total value by quarter
QuarterHoldersValue
Q2 2026777$31.3B
Q1 2026621$15.8B
Q4 2025516$11.3B
Q3 2025435$8.91B
Q2 2025396$7.42B
Q1 2025397$5.73B
Q4 2024420$7.36B
Q3 2024410$7.37B
Q2 2024397$9.02B
Q1 2024343$9.16B
Q4 2023325$6.88B
Q3 2023324$5.80B
Q2 2023320$7.32B
Q1 2023325$5.94B
Q4 2022316$5.74B
Q3 2022358$4.84B
Q2 2022375$5.46B
Q1 2022399$8.06B
Q4 2021405$9.34B
Q3 2021376$7.93B
Q2 2021376$9.28B
Q1 2021351$9.83B

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding MKS Inc; share changes are against Q3 2025.

Institutions holding MKSI in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Pacer Advisors, Inc.10,691$1.71M0.00%−1,316−11.0%Reduced
CWM Advisors, LLC10,946$1.75M0.16%+7,265+197.4%Added
Mercer Global Advisors Inc10,968$1.75M0.00%+3,555+48.0%Added
Voya Investment Management LLC11,145$1.78M0.00%+2,604+30.5%Added
ProShare Advisors LLC11,229$1.79M0.00%+2,178+24.1%Added
Walleye Capital LLC11,453$1.83M0.01%−38,835−77.2%Reduced
Banco Santander, S.A.11,748$1.88M0.01%+249+2.2%Added
Equitable Trust Co11,752$1.88M0.08%+1,095+10.3%Added
Wiley Bros.-Aintree Capital, LLC11,860$1.90M0.01%+721+6.5%Added
CI Private Wealth, LLC11,855$1.90M0.00%+5,995+102.3%Added
Ieq Capital, LLC11,907$1.90M0.01%−7,363−38.2%Reduced
LPL Financial LLC11,910$1.90M0.00%+5,049+73.6%Added
Dean Capital Management12,090$1.93M0.82%+377+3.2%Added
Engineers Gate Manager LP12,231$1.95M0.02%+8,317+212.5%Added
Ameritas Investment Partners, Inc.12,310$1.97M0.06%−279−2.2%Reduced
First National Bank of Omaha12,475$1.99M0.06%−999−7.4%Reduced
Great Lakes Advisors, LLC12,538$2.00M0.02%−5,267−29.6%Reduced
Wealth Enhancement Advisory Services, LLC11,412$2.09M0.00%+2,247+24.5%Added
New Mexico Educational Retirement Board13,200$2.11M0.06%00.0%Unchanged
Oregon Public Employees Retirement Fund13,397$2.14M0.03%−78−0.6%Reduced
Optimize Financial Inc13,435$2.15M1.08%+192+1.4%Added
Summit Trail Advisors, LLC14,172$2.26M0.04%+571+4.2%Added
Aquatic Capital Management LLC14,369$2.30M0.07%+14,369New
Vestmark Advisory Solutions, Inc.14,460$2.31M0.03%+14,460New
New Age Alpha Advisors, LLC14,639$2.34M0.10%+13,333+1,020.9%Added
KLP Kapitalforvaltning AS15,000$2.40M0.01%+1,000+7.1%Added
Northwestern Mutual Investment Management Company, LLC15,028$2.40M0.03%+58+0.4%Added
Virginia Retirement Systems Et Al15,100$2.41M0.01%+5,500+57.3%Added
BlueCrest Capital Management Ltd15,640$2.50M0.10%+15,640New
State of Michigan Retirement System15,840$2.53M0.01%−200−1.2%Reduced
Worldquant Millennium Advisors LLC16,281$2.60M0.01%+16,281New
Caption Management, LLC16,328$2.61M0.12%00.0%Unchanged
Old West Investment Management, LLC16,350$2.61M0.47%+501+3.2%Added
Brinker Capital Investments, LLC16,358$2.61M0.02%−1,014−5.8%Reduced
Ethic Inc.16,366$2.62M0.04%+2,644+19.3%Added
Janney Montgomery Scott LLC16,473$2.63M0.01%+909+5.8%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys16,808$2.69M0.01%−428−2.5%Reduced
Capital Fund Management S.A.16,913$2.70M0.03%+16,913New
Sterling Capital Management LLC16,987$2.71M0.04%−171−1.0%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH17,492$2.80M0.00%+5,259+43.0%Added
Nisa Investment Advisors, LLC17,737$2.83M0.01%+10.0%Added
Icon Advisers Inc18,000$2.88M0.62%+3,500+24.1%Added
Harbor Capital Advisors, Inc.18,221$2.91M0.23%−5,510−23.2%Reduced
Algert Global LLC18,280$2.92M0.05%+18,280New
JustInvest LLC18,476$2.95M0.03%+752+4.2%Added
Louisiana State Employees Retirement System18,600$2.97M0.05%−100−0.5%Reduced
WCM Investment Management, LLC18,556$3.00M0.01%−15,288−45.2%Reduced
Arizona State Retirement System18,809$3.01M0.02%−1,018−5.1%Reduced
SG Americas Securities, LLC19,124$3.06M0.00%+13,887+265.2%Added
Light Street Capital Management, LLC19,582$3.13M0.48%+19,582New
Pathstone Holdings, LLC19,652$3.14M0.01%−1,415−6.7%Reduced
Colony Group, LLC19,926$3.18M0.00%+19,926New
XTX Topco Ltd19,944$3.19M0.08%+19,944New
Cerity Partners LLC20,185$3.23M0.00%+3,282+19.4%Added
Zurcher Kantonalbank (Zurich Cantonalbank)20,759$3.32M0.01%+1,568+8.2%Added
M&T Bank Corp22,044$3.52M0.01%+1,152+5.5%Added
Oliver Luxxe Assets LLC22,641$3.62M0.55%+22,641New
Hilton Capital Management, LLC23,140$3.70M0.28%+23,140New
State of New Jersey Common Pension Fund D23,156$3.70M0.01%−313−1.3%Reduced
Dean Investment Associates, LLC23,480$3.75M0.54%+607+2.7%Added
Deroy & Devereaux Private Investment Counsel Inc23,555$3.76M0.18%+23,555New
Expect Equity LLC24,015$3.84M3.16%−7,475−23.7%Reduced
Sit Investment Associates Inc24,025$3.84M0.08%00.0%Unchanged
Prudential Financial Inc24,077$3.85M0.00%−20,066−45.5%Reduced
Hantz Financial Services, Inc.24,383$3.90M0.06%−3,621−12.9%Reduced
Fieldview Capital Management, LLC25,208$4.03M0.68%+848+3.5%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.26,059$4.16M0.00%+25,406+3,890.7%Added
RMB Capital Management, LLC26,641$4.26M0.07%−1,828−6.4%Reduced
Squarepoint Ops LLC26,648$4.26M0.01%+26,648New
EAM Investors, LLC26,866$4.29M0.48%+26,866New
Cetera Investment Advisers27,051$4.32M0.00%+568+2.1%Added
Yousif Capital Management, LLC20,815$4.38M0.05%−305−1.4%Reduced
Police & Firemen's Retirement System of New Jersey28,116$4.49M0.04%−1,621−5.5%Reduced
Treasurer of the State of North Carolina28,143$4.50M0.01%−2,059−6.8%Reduced
Aequim Alternative Investments LP28,189$4.50M0.09%+28,189New
Janus Henderson Group PLC29,070$4.65M0.00%00.0%Unchanged
Two Sigma Investments, LP29,358$4.69M0.01%+23,158+373.5%Added
Credit Agricole S A29,405$4.70M0.01%+29,405New
Amalgamated Bank30,459$4.87M0.04%−202−0.7%Reduced
LSV Asset Management31,492$5.03M0.01%+31,492New
Capstone Investment Advisors, LLC31,591$5.05M0.04%00.0%Unchanged
Cinctive Capital Management LP31,897$5.10M0.29%+31,897New
MetLife Investment Management32,820$5.24M0.03%−1,698−4.9%Reduced
Canada Pension Plan Investment Board35,000$5.59M0.00%+21,400+157.4%Added
Russell Investments Group, Ltd.34,989$5.59M0.01%−381−1.1%Reduced
Toroso Investments, LLC35,074$5.60M0.02%+10,795+44.5%Added
Candelo Capital Management LP35,107$5.61M5.12%+35,107New
Globeflex Capital L P36,314$5.80M0.89%+3,463+10.5%Added
Shellback Capital, LP36,407$5.82M0.56%+36,407New
Teachers Retirement System of the State of Kentucky37,904$6.06M0.05%−1,059−2.7%Reduced
Great West Life Assurance Co38,169$6.10M0.01%−17,073−30.9%Reduced
Comerica Bank39,852$6.37M0.03%−151,279−79.1%Reduced
CNH Partners LLC40,090$6.41M0.13%+2,746+7.4%Added
Creative Planning42,827$6.84M0.00%−273−0.6%Reduced
State of Tennessee, Treasury Department29,270$6.89M0.02%−4,237−12.6%Reduced
Fourier Capital Management Ltd43,531$6.96M7.39%+43,531New
Mutual of America Capital Management LLC45,402$7.26M0.08%−1,689−3.6%Reduced
State of Wisconsin Investment Board45,616$7.29M0.02%+4,044+9.7%Added
Gabelli Funds LLC47,026$7.51M0.05%+700+1.5%Added
GHP Investment Advisors, Inc.47,561$7.60M0.31%+1,377+3.0%Added