Who owns MKS INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MKSI from SEC Form 13F filings across 773 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 773 institutions disclosed 70.7M shares of MKS INC worth $31.27B — about 104.6% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
773
13F holders
$31.27B
value, 2026 filers
104.6%
of shares outstanding (70.7M sh)
222
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MKSI's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.9M | $3.08B | 0.0% | 10.3% | +4.3% |
| 2 | Invesco Ltd. | 4.7M | $2.07B | 0.2% | 6.9% | +25.3% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.7M | $1.65B | 0.1% | 5.5% | +0.6% |
| 4 | JPMORGAN CHASE & CO | 3.4M | $1.40B | 0.1% | 5% | +60.9% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | $1.36B | 0.0% | 4.5% | +1.2% |
| 6 | STATE STREET CORP | 2.1M | $949.4M | 0.0% | 3.2% | +3.7% |
| 7 | Point72 Asset Management, L.P. | 2.0M | $888.2M | 1.0% | 3% | +24.0% |
| 8 | Capital International Investors | 1.9M | $851.9M | 0.2% | 2.8% | -2.7% |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.9M | $840.6M | 0.1% | 2.8% | +11.2% |
| 10 | Aspex Management (HK) Ltd | 1.8M | $809.7M | 9.1% | 2.7% | +18.3% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $686.6M | 0.0% | 2.3% | 0.0% |
| 12 | FMR LLC | 1.5M | $667.0M | 0.0% | 2.2% | -22.5% |
| 13 | WELLINGTON MANAGEMENT GROUP LLP | 1.4M | $629.9M | 0.1% | 2.1% | -22.8% |
| 14 | Capital World Investors | 1.4M | $607.7M | 0.1% | 2% | +7.0% |
| 15 | Whale Rock Capital Management LLC | 1.3M | $565.5M | 4.5% | 1.9% | -2.7% |
| 16 | NEUBERGER BERMAN GROUP LLC | 1.2M | $518.2M | 0.3% | 1.7% | -18.7% |
| 17 | ALKEON CAPITAL MANAGEMENT LLCNEW | 1.1M | $476.8M | 0.6% | 1.6% | new |
| 18 | NORGES BANKNEW | 954,667 | $424.6M | 0.0% | 1.4% | new |
| 19 | WESTFIELD CAPITAL MANAGEMENT CO LP | 928,617 | $413.0M | 1.3% | 1.4% | -11.3% |
| 20 | Sachem Head Capital Management LPNEW | 812,700 | $361.5M | 7.5% | 1.2% | new |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 808,198 | $359.5M | 0.0% | 1.2% | -6.7% |
| 22 | CITADEL ADVISORS LLC | 697,670 | $310.3M | 0.0% | 1% | -26.3% |
| 23 | MORGAN STANLEY | 681,576 | $303.2M | 0.0% | 1% | +32.3% |
| 24 | Bank of New York Mellon Corp | 658,544 | $292.9M | 0.0% | 1% | -20.9% |
| 25 | MILLENNIUM MANAGEMENT LLC | 645,071 | $286.9M | 0.1% | 1% | -27.9% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.