MKSMKSI
13F holders, Q1 2025 (March 31)397holders −23
53new positions
77sold out
8famous investors
$80.10avg. 13F price*
At the end of Q1 2025, 397 institutions reported holding MKS Inc. (MKSI) in their 13F filings, down 23 from Q4 2024. 53 opened new positions and 77 sold out. The largest holders were Vanguard Group Inc. ($597.2M), BlackRock, Inc. ($566.4M) and FMR LLC ($324.2M). 8 famous investors held it, including Steve Cohen (0.1% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- MKS Inc.
- Filed as
- MKS INSTRS INC (Q1 2025)
- CUSIP
- 55306N104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 53 | $85.7M |
| Exits | 77 | $182.7M |
All 13F filers, Q4 2024 → Q1 2025: 7,053,324 shares bought and 5,173,375 shares sold, net +1,879,949 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 397 holders
| Vanguard Group Inc. | 0.01% | Add +0.1% | 7,450,615 | $597.2M |
| BlackRock, Inc. | 0.01% | Reduce -0.8% | 7,066,707 | $566.4M |
| FMR LLC | 0.02% | Reduce -4.2% | 4,044,555 | $324.2M |
| T. Rowe Price Associates Inc. | 0.03% | Add +5.2% | 3,515,373 | $281.8M |
| Victory Capital Management Inc. | 0.28% | Add +9.7% | 3,388,639 | $271.6M |
| Wellington Management Group LLP | 0.05% | Add +41.8% | 3,250,085 | $260.5M |
| Capital International Investors | 0.05% | Add +0.0% | 3,098,999 | $248.4M |
| Nordea Investment Management AB | 0.19% | Reduce -10.0% | 2,273,283 | $178.6M |
| State Street Corp. | 0.01% | Add +0.6% | 2,082,712 | $166.9M |
| Invesco Ltd. | 0.03% | Reduce -8.2% | 2,049,563 | $164.3M |
| Neuberger Berman Group LLC | 0.13% | Add +9.0% | 1,943,939 | $155.8M |
| Madison Asset Management, LLC | 1.28% | Add +52.9% | 1,428,143 | $114.5M |
| Geode Capital Management, LLC | 0.01% | Add +4.2% | 1,223,043 | $98.1M |
| Cooke & Bieler LP | 0.83% | Add +18.5% | 1,038,945 | $83.3M |
| Norges Bank | 0.01% | Add +10.5% | 904,502 | $72.5M |
| Dimensional Fund Advisors LP | 0.02% | Add +40.3% | 878,681 | $70.4M |
| Principal Financial Group Inc. | 0.04% | Reduce -0.1% | 835,195 | $66.9M |
| UBS Group AG | 0.01% | Add +20.0% | 807,853 | $64.7M |
| Royce & Associates LP | 0.69% | Add +7.3% | 793,244 | $63.6M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +7.8% | 718,239 | $57.6M |
| Barclays PLC | 0.03% | Reduce -16.7% | 710,912 | $57.0M |
| Kodai Capital Management LP | 2.25% | Add +138.3% | 708,021 | $56.7M |
| Bank of America Corp. | 0.00% | Reduce -3.6% | 681,420 | $54.6M |
| Morgan Stanley | 0.00% | Add +3.0% | 642,790 | $51.5M |
| Northern Trust Corp. | 0.01% | Add +4.2% | 634,204 | $50.8M |
| Bank of New York Mellon Corp | 0.01% | Reduce -1.3% | 603,708 | $48.4M |
| Shapiro Capital Management LLC | 1.83% | Add +19.8% | 553,365 | $44.4M |
| Channing Capital Management, LLC | 1.34% | New | 552,960 | $44.3M |
| Millennium Management | 0.04% | Add +132.2% | 545,109 | $43.7M |
| Manufacturers Life Insurance Company, The | 0.04% | Add +10.6% | 543,421 | $43.6M |
| Rafferty Asset Management, LLC | 0.18% | Reduce -6.8% | 537,469 | $43.1M |
| Royal Bank of Canada | 0.01% | Add +28.2% | 524,837 | $42.1M |
| Balyasny Asset Management L.P. | 0.10% | Add +395.5% | 494,583 | $39.6M |
| JPMorgan Chase & Co. | 0.00% | Add +0.4% | 454,058 | $36.4M |
| Nomura Holdings Inc. | 0.17% | Reduce -4.6% | 400,234 | $32.1M |
| Wells Fargo & Company | 0.01% | Add +6.5% | 399,082 | $32.0M |
| D. E. Shaw & Co. | 0.04% | Add +6.8% | 392,381 | $31.4M |
| Capital Research Global Investors | 0.01% | No change | 387,153 | $31.0M |
| Citigroup Inc. | 0.02% | Reduce -20.2% | 385,478 | $30.9M |
| Polaris Capital Management, LLC | 1.71% | Add +6.0% | 373,600 | $29.9M |
| Frontier Capital Management Co. LLC | 0.32% | Add +1.9% | 370,286 | $29.7M |
| Point72 Asset Management | 0.08% | Add +11.9% | 359,886 | $28.8M |
| Blue Grotto Capital, LLC | 5.44% | Add +313.1% | 355,221 | $28.5M |
| Value Holdings Management Co. LLC | 4.47% | No change | 297,714 | $23.9M |
| Mizuho Markets Americas LLC | 0.49% | Reduce -0.4% | 283,706 | $22.7M |
| Loomis Sayles & Co. L P | 0.03% | Reduce -1.7% | 282,592 | $22.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +3.5% | 267,421 | $21.4M |
| Natixis Advisors, LLC | 0.04% | Reduce -6.8% | 264,124 | $21.2M |
| Raymond James Financial Inc. | 0.01% | Reduce -3.2% | 262,567 | $21.0M |
| Harvey Partners, LLC | 2.48% | Add +37.7% | 261,000 | $20.9M |
| Silvercrest Asset Management Group LLC | 0.15% | Reduce -0.2% | 259,325 | $20.8M |
| California Public Employees Retirement System | 0.01% | Add +145.9% | 258,989 | $20.8M |
| Artemis Investment Management LLP | 0.31% | Add +2.2% | 251,799 | $20.2M |
| Bank of Montreal | 0.01% | Add +30.0% | 233,670 | $18.7M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -76.3% | 232,994 | $18.7M |
| Thrivent Financial for Lutherans | 0.04% | Add +10.1% | 224,924 | $18.0M |
| Systematic Financial Management LP | 0.51% | Add +1.2% | 222,235 | $17.8M |
| Aperture Investors, LLC | 2.50% | Reduce -11.2% | 205,209 | $16.4M |
| Kennedy Capital Management LLC | 0.36% | Add +153.2% | 188,775 | $15.1M |
| Rhumbline Advisers | 0.01% | Add +0.8% | 187,807 | $15.1M |
| New York State Common Retirement Fund | 0.02% | Add +188.4% | 166,430 | $13.3M |
| BNP Paribas Financial Markets | 0.01% | Add +77.1% | 164,565 | $13.2M |
| Retirement Systems of Alabama | 0.05% | Add +0.1% | 158,011 | $12.7M |
| Polar Capital Holdings Plc | 0.08% | No change | 156,477 | $12.5M |
| Ameriprise Financial Inc. | 0.00% | Reduce -18.4% | 155,115 | $12.4M |
| Sei Investments Co. | 0.01% | Reduce -3.9% | 145,103 | $11.6M |
| Penserra Capital Management LLC | 0.21% | Add +41.0% | 143,993 | $11.5M |
| Nuveen, LLC | 0.00% | — | 137,121 | $11.0M |
| Bessemer Group Inc. | 0.02% | Reduce -8.6% | 134,073 | $10.7M |
| Deutsche Bank AG | 0.00% | Add +1.2% | 132,629 | $10.6M |
| SummitTX Capital, L.P. | 0.47% | — | 132,293 | $10.6M |
| Swiss National Bank | 0.01% | Reduce -1.4% | 130,400 | $10.5M |
| Needham Investment Management LLC | 0.97% | Reduce -0.2% | 128,750 | $10.3M |
| Freestone Grove Partners LP | 0.10% | New | 123,376 | $9.9M |
| Envestnet Asset Management Inc. | 0.00% | Add +16.3% | 110,765 | $8.9M |
| Harbor Capital Advisors, Inc. | 0.40% | Reduce -5.0% | 109,755 | $8.8M |
| Susquehanna International Group, LLP | 0.01% | Add +458.9% | 105,267 | $8.4M |
| Legal & General Group Plc | 0.00% | Add +0.5% | 105,180 | $8.4M |
| Jane Street Group, LLC | 0.01% | Reduce -43.2% | 103,070 | $8.3M |
| Segall Bryant & Hamill, LLC | 0.11% | Add +3.0% | 92,784 | $7.4M |
| Alliancebernstein L.P. | 0.00% | Reduce -1.5% | 87,165 | $7.0M |
| First Eagle Investment Management, LLC | 0.01% | Reduce -35.5% | 86,649 | $6.9M |
| Federated Hermes, Inc. | 0.01% | Add +176.9% | 83,775 | $6.7M |
| Stifel Financial Corp. | 0.01% | Add +34.1% | 83,165 | $6.7M |
| Harber Asset Management LLC | 2.38% | New | 82,140 | $6.6M |
| Lazard Asset Management LLC | 0.01% | Add +32.8% | 81,647 | $6.5M |
| Jain Global LLC | 0.13% | Add +302.5% | 80,573 | $6.5M |
| Macquarie Group Ltd. | 0.01% | Add +25.1% | 76,743 | $6.2M |
| Corebridge Financial, Inc. | 0.03% | Reduce -2.4% | 74,375 | $6.0M |
| Leith Wheeler Investment Counsel Ltd. | 0.41% | Add +1.2% | 73,174 | $5.9M |
| First National Bank of Omaha | 0.39% | Reduce -3.5% | 70,980 | $5.7M |
| AQR Capital Management | 0.01% | Add +19.4% | 70,211 | $5.5M |
| Prudential Financial Inc. | 0.01% | Reduce -15.2% | 52,087 | $5.5M |
| Trexquant Investment LP | 0.06% | Add +357.4% | 65,961 | $5.3M |
| New York State Teachers Retirement System | 0.01% | Add +0.1% | 65,386 | $5.2M |
| Amundi | 0.00% | Reduce -71.5% | 79,492 | $5.1M |
| Walleye Capital LLC | 0.06% | Reduce -43.5% | 63,614 | $5.1M |
| Sculptor Capital LP | 0.18% | New | 63,300 | $5.1M |
| Readystate Asset Management LP | 0.46% | Add +55.5% | 63,187 | $5.1M |
| California State Teachers Retirement System | 0.01% | Reduce -1.1% | 62,219 | $5.0M |
"% of holder's portfolio" is MKSI's weight in each manager's 13F, not the share of MKS Inc. the manager owns.