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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 777 | $31.3B |
| Q1 2026 | 621 | $15.8B |
| Q4 2025 | 516 | $11.3B |
| Q3 2025 | 435 | $8.91B |
| Q2 2025 | 396 | $7.42B |
| Q1 2025 | 397 | $5.73B |
| Q4 2024 | 420 | $7.36B |
| Q3 2024 | 410 | $7.37B |
| Q2 2024 | 397 | $9.02B |
| Q1 2024 | 343 | $9.16B |
| Q4 2023 | 325 | $6.88B |
| Q3 2023 | 324 | $5.80B |
| Q2 2023 | 320 | $7.32B |
| Q1 2023 | 325 | $5.94B |
| Q4 2022 | 316 | $5.74B |
| Q3 2022 | 358 | $4.84B |
| Q2 2022 | 375 | $5.46B |
| Q1 2022 | 399 | $8.06B |
| Q4 2021 | 405 | $9.34B |
| Q3 2021 | 376 | $7.93B |
| Q2 2021 | 376 | $9.28B |
| Q1 2021 | 351 | $9.83B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding MKS Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Leith Wheeler Investment Counsel Ltd. | 48,469 | $7.75M | 0.58% | −18,695−27.8% | Reduced |
| Harber Asset Management LLC | 52,539 | $8.40M | 3.52% | −15,750−23.1% | Reduced |
| Robeco Schweiz AG | 52,630 | $8.41M | 0.19% | +52,630 | New |
| First Trust Advisors LP | 52,976 | $8.47M | 0.01% | −63,356−54.5% | Reduced |
| State Board of Administration of Florida Retirement System | 54,101 | $8.65M | 0.02% | +380+0.7% | Added |
| Wellington Shields Capital Management, LLC | 54,161 | $8.65M | 1.26% | −721−1.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 55,082 | $8.80M | 0.01% | +15,928+40.7% | Added |
| Pinnbrook Capital Management LP | 55,298 | $8.84M | 2.28% | +55,298 | New |
| Public Employees Retirement System of Ohio | 55,319 | $8.84M | 0.03% | −6,969−11.2% | Reduced |
| Mizuho Markets Americas LLC | 56,281 | $8.99M | 0.19% | −248,550−81.5% | Reduced |
| Stifel Financial Corp | 58,696 | $9.38M | 0.01% | +318+0.5% | Added |
| Hood River Capital Management LLC | 58,878 | $9.41M | 0.10% | +58,878 | New |
| Edgestream Partners, L.P. | 58,881 | $9.41M | 0.26% | +41,080+230.8% | Added |
| Oversea-Chinese Banking CORP Ltd | 62,830 | $10.0M | 0.28% | +39,408+168.3% | Added |
| California State Teachers Retirement System | 63,854 | $10.2M | 0.01% | +1,632+2.6% | Added |
| New York State Teachers Retirement System | 65,286 | $10.4M | 0.02% | 00.0% | Unchanged |
| Citigroup Inc | 66,311 | $10.6M | 0.01% | +524+0.8% | Added |
| Agf Management Ltd | 69,733 | $11.1M | 0.05% | +69,733 | New |
| Bank of Nova Scotia | 72,250 | $11.5M | 0.02% | +72,250 | New |
| Phocas Financial Corp. | 73,365 | $11.7M | 1.52% | −177−0.2% | Reduced |
| Glenview Capital Management, LLC | 74,200 | $11.9M | 0.25% | −97,722−56.8% | Reduced |
| Divisar Capital Management LLC | 77,501 | $12.4M | 3.48% | +15,501+25.0% | Added |
| STRS Ohio | 80,803 | $12.9M | 0.05% | +7,203+9.8% | Added |
| NFJ Investment Group, LLC | 85,590 | $13.7M | 0.50% | −16,129−15.9% | Reduced |
| Alliancebernstein L.P. | 86,122 | $13.8M | 0.00% | +1,410+1.7% | Added |
| Thrivent Financial for Lutherans | 87,605 | $14.0M | 0.02% | −17,474−16.6% | Reduced |
| Shapiro Capital Management LLC | 89,315 | $14.3M | 0.75% | −219,735−71.1% | Reduced |
| Assenagon Asset Management S.A. | 92,856 | $14.8M | 0.02% | +92,856 | New |
| Envestnet Asset Management Inc | 93,164 | $14.9M | 0.00% | −8,614−8.5% | Reduced |
| Federated Hermes, Inc. | 99,313 | $15.9M | 0.03% | −615−0.6% | Reduced |
| Legal & General Group Plc | 99,589 | $15.9M | 0.00% | −3,832−3.7% | Reduced |
| Concentric Capital Strategies, LP | 102,590 | $16.4M | 0.85% | +27,677+36.9% | Added |
| Tudor Investment Corp Et Al | 104,482 | $16.7M | 0.09% | +104,482 | New |
| California Public Employees Retirement System | 114,384 | $18.3M | 0.01% | −470.0% | Reduced |
| SEI Investments Co | 126,058 | $20.1M | 0.02% | +13,888+12.4% | Added |
| Jain Global LLC | 127,003 | $20.3M | 0.20% | −6,194−4.7% | Reduced |
| Needham Investment Management LLC | 130,500 | $20.9M | 1.32% | −250−0.2% | Reduced |
| Swiss National Bank | 132,500 | $21.2M | 0.01% | +2,500+1.9% | Added |
| Deutsche Bank AG | 133,976 | $21.4M | 0.01% | −210−0.2% | Reduced |
| Amundi | 140,223 | $22.4M | 0.01% | +38,032+37.2% | Added |
| Ameriprise Financial Inc | 142,495 | $22.8M | 0.01% | −38,020−21.1% | Reduced |
| Polar Capital Holdings Plc | 143,498 | $22.9M | 0.10% | −1,128−0.8% | Reduced |
| Kennedy Capital Management, Inc. | 144,139 | $23.0M | 0.49% | −27,418−16.0% | Reduced |
| Nomura Asset Management International Inc. | 150,666 | $24.1M | 0.04% | +150,666 | New |
| New York State Common Retirement Fund | 151,334 | $24.2M | 0.03% | −71,712−32.2% | Reduced |
| Silvercrest Asset Management Group LLC | 156,605 | $25.0M | 0.17% | −14,467−8.5% | Reduced |
| Retirement Systems of Alabama | 156,714 | $25.0M | 0.08% | −585−0.4% | Reduced |
| Bessemer Group Inc | 158,030 | $25.3M | 0.04% | −54,011−25.5% | Reduced |
| Handelsbanken Fonder AB | 158,400 | $25.3M | 0.08% | +48,800+44.5% | Added |
| BNP Paribas Arbitrage, SA | 160,613 | $25.7M | 0.02% | +91,947+133.9% | Added |
| Bank of Montreal | 164,794 | $26.3M | 0.01% | +56,549+52.2% | Added |
| Mizuho Markets Cayman LP | 175,000 | $28.0M | 1.41% | +175,000 | New |
| Rhumbline Advisers | 176,041 | $28.1M | 0.02% | −7,374−4.0% | Reduced |
| Goldman Sachs Group Inc | 179,998 | $28.8M | 0.00% | −36,308−16.8% | Reduced |
| Loomis Sayles & Co L P | 184,233 | $29.4M | 0.04% | −27,405−12.9% | Reduced |
| Ceredex Value Advisors LLC | 186,535 | $29.8M | 0.90% | −13,590−6.8% | Reduced |
| AQR Capital Management LLC | 196,662 | $31.4M | 0.02% | +26,665+15.7% | Added |
| UBS Asset Management Americas Inc | 200,179 | $32.0M | 0.01% | −6,256−3.0% | Reduced |
| SummitTX Capital, L.P. | 205,750 | $32.9M | 1.00% | +9,016+4.6% | Added |
| Gotham Asset Management, LLC | 225,215 | $36.0M | 0.13% | +26,055+13.1% | Added |
| Cramer Rosenthal McGlynn LLC | 230,692 | $36.9M | 2.38% | +230,692 | New |
| Quantinno Capital Management LP | 230,899 | $36.9M | 0.07% | +71,706+45.0% | Added |
| Penserra Capital Management LLC | 237,906 | $38.0M | 0.45% | −58,057−19.6% | Reduced |
| Defiance ETFs, LLC | 237,906 | $38.5M | 1.26% | +237,906 | New |
| Raymond James Financial Inc | 249,347 | $40.0M | 0.01% | +72,092+40.7% | Added |
| Systematic Financial Management LP | 264,741 | $42.3M | 1.00% | −712−0.3% | Reduced |
| Polaris Capital Management, LLC | 265,100 | $42.4M | 3.51% | −136,200−33.9% | Reduced |
| Park West Asset Management LLC | 278,614 | $44.5M | 3.75% | +218,614+364.4% | Added |
| Harvey Partners, LLC | 289,197 | $46.2M | 4.15% | +197+0.1% | Added |
| Value Holdings Management Co. LLC | 297,714 | $47.6M | 7.96% | 00.0% | Unchanged |
| Royal Bank of Canada | 309,842 | $49.5M | 0.01% | −369,954−54.4% | Reduced |
| UBS Group AG | 323,713 | $51.7M | 0.01% | −330,130−50.5% | Reduced |
| Delta Global Management LP | 327,390 | $52.3M | 3.81% | +175,855+116.0% | Added |
| Barclays PLC | 340,318 | $54.4M | 0.02% | −26,830−7.3% | Reduced |
| Nuveen, LLC | 341,424 | $54.6M | 0.01% | +60,175+21.4% | Added |
| Nomura Holdings Inc | 364,033 | $58.2M | 0.17% | −62,476−14.6% | Reduced |
| Summit Partners Public Asset Management, LLC | 381,500 | $61.0M | 1.71% | −214,632−36.0% | Reduced |
| Jane Street Group, LLC | 383,115 | $61.2M | 0.07% | +251,473+191.0% | Added |
| Wells Fargo & Company | 391,182 | $62.5M | 0.01% | +32,501+9.1% | Added |
| American Century Companies Inc | 397,564 | $63.5M | 0.03% | +395,429+18,521.3% | Added |
| Blue Grotto Capital, LLC | 415,500 | $66.4M | 6.82% | +203,652+96.1% | Added |
| Citadel Advisors LLC | 457,873 | $73.2M | 0.05% | +316,715+224.4% | Added |
| Bank of America Corp | 480,227 | $76.7M | 0.01% | +52,229+12.2% | Added |
| Balyasny Asset Management LLC | 511,620 | $81.8M | 0.15% | −338,625−39.8% | Reduced |
| Natixis Advisors, L.P. | 522,415 | $83.5M | 0.12% | +41,247+8.6% | Added |
| Channing Capital Management, LLC | 531,179 | $84.9M | 2.18% | −212,983−28.6% | Reduced |
| Frontier Capital Management Co LLC | 550,735 | $88.0M | 0.93% | −530,028−49.0% | Reduced |
| Northern Trust Corp | 565,986 | $90.4M | 0.01% | −25,913−4.4% | Reduced |
| Morgan Stanley | 590,521 | $94.4M | 0.01% | −62,090−9.5% | Reduced |
| Southpoint Capital Advisors LP | 600,000 | $95.9M | 2.23% | +600,000 | New |
| Nordea Investment Management AB | 599,842 | $96.6M | 0.08% | −996,602−62.4% | Reduced |
| Manufacturers Life Insurance Company, The | 606,214 | $96.9M | 0.08% | −216,982−26.4% | Reduced |
| Royce & Associates LP | 616,605 | $98.5M | 1.00% | −210,522−25.5% | Reduced |
| Point72 Asset Management, L.P. | 625,799 | $100.0M | 0.16% | −387,754−38.3% | Reduced |
| Principal Financial Group Inc | 765,595 | $122.4M | 0.06% | −53,151−6.5% | Reduced |
| Bank of New York Mellon Corp | 788,648 | $126.0M | 0.02% | +137,519+21.1% | Added |
| Millennium Management LLC | 817,251 | $130.6M | 0.09% | +371,003+83.1% | Added |
| Westfield Capital Management Co LP | 839,773 | $134.2M | 0.56% | +516,409+159.7% | Added |
| Charles Schwab Investment Management Inc | 870,654 | $139.1M | 0.02% | +24,349+2.9% | Added |
| Madison Asset Management, LLC | 921,450 | $147.2M | 1.69% | −54,641−5.6% | Reduced |