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 2 sales; 782 institutions reported holding it in 13F filings for Q2 2026, worth $31.4B in total; Maverick Capital is the only superinvestor holding it.
Key figures
- Market capClose on Nov 10, 2026
- $14.4B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $3.10M in total
- 2
- 13F holdersQ2 2026, +162 vs. previous quarter
- 782
- 13F valueReported value at the end of Q2 2026
- $31.4B
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $3.93B
- +9.6% year over year
- Net income, FY2025
- $295.0M
- +55.3% year over year
- Free cash flow, FY2025
- $497.0M
- +21.2% year over year
- Revenue, Q3 FY2026
- $1.41B
- +43.0% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 15, 2026.
- Short interest
- 4.91M
- Shares sold short
- Change
- −175.7K
- −3.5% vs. previous
- Days to cover
- 3.66
- At average daily volume
Superinvestors holding MKSI, Q2 2026
Go to the superinvestors tab1 superinvestor reports holding MKS Inc on Form 13F. Percentages are the stock's share of each portfolio.
Latest insider trades
See all insider tradesOpen-market purchases and sales by MKS Inc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 2, 2026 (view filing)12:34 PM ET | Sep 1 | 1 day | Mora ElizabethDirector | SSale | −300 | $250.96 | −$75.3K | −1.6%18.8K after | 10b5-1 |
| Aug 17, 2026 (view filing)10:11 AM ET | Aug 14 | 3 days | Lee John Tseng-ChungPresident & CEO | SSale | −10.0K | $302.01 | −$3.02M | −6.9%134.8K after | 10b5-1 |
| Aug 4, 2026 (view filing)12:21 PM ET | Aug 3 | 1 day | Williams John EdwardEVP & GM, PSD | SSale | −457 | $288.31 | −$131.8K | −10.0%4.10K after | 10b5-1 |
| Jun 16, 2026 (view filing) | Jun 12 | 4 days | Schreiner James AlanEVP & COO | SSale | −3.50K | $345.82 | −$1.21M | −15.4%19.2K after | 3 lots |
| Jun 11, 2026 (view filing) | Jun 10 | 1 day | Schreiner James AlanEVP & COO | SSale | −781 | $317.42 | −$247.9K | −3.3%22.7K after | 10b5-1 |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | McCarthy Michelle MSVP & Chief Accounting Officer | SSale | −2.43K | $315.23 | −$767.3K | −99.9%1.55 after | 10b5-1 |
| Jun 2, 2026 (view filing) | Jun 1 | 1 day | Henry David PhilipEVP, Global Str Mktg & GM, MSD | SSale | −6.00K | $314.43 | −$1.89M | −36.5%10.4K after | |
| Jun 2, 2026 (view filing) | Jun 1 | 1 day | Mora ElizabethDirector | SSale | −300 | $318.02 | −$95.4K | −1.5%19.1K after | 10b5-1 |
| May 28, 2026 (view filing) | May 27 | 1 day | Donahue Joseph BDirector | SSale | −2.10K | $327.95 | −$688.7K | −17.3%10.0K after | |
| May 28, 2026 (view filing) | May 27 | 1 day | Colella Gerard GDirector | SSale | −20.0K | $333.40 | −$6.67M | −50.0%20.0K after | 7 lots10b5-1 |
Top 10 13F holders, Q2 2026
See all 782 holdersThe largest institutional positions in MKS Inc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,930,030 | $3.08B | 0.05% | +288,300+4.3% | Added |
| Invesco Ltd. | 4,661,664 | $2.07B | 0.16% | +940,205+25.3% | Added |
| Vanguard Portfolio Management LLC | 3,707,327 | $1.65B | 0.07% | +21,834+0.6% | Added |
| JPMorgan Chase & Co | 3,373,844 | $1.40B | 0.08% | +1,277,502+60.9% | Added |
| Vanguard Capital Management LLC | 3,049,560 | $1.36B | 0.03% | +35,359+1.2% | Added |
| State Street Corp | 2,134,663 | $949.4M | 0.03% | +76,931+3.7% | Added |
| Point72 Asset Management, L.P. | 1,996,843 | $888.2M | 1.36% | +386,512+24.0% | Added |
| Capital International Investors | 1,915,187 | $851.9M | 0.18% | −53,583−2.7% | Reduced |
| Price T Rowe Associates Inc | 1,889,901 | $840.6M | 0.08% | +189,753+11.2% | Added |
| Aspex Management (HK) Ltd | 1,820,441 | $809.7M | 9.13% | +281,652+18.3% | Added |
Holders of 5% or more of MKSI
See all 4 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of MKS Inc.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 8.80%5.89M shares | – | Nov 7, 20242 filings | Oct 17, 2025 | SEC |
| Invesco Ltd. | 13G | 6.50%4.39M shares | New | Feb 12, 20261 filing | Feb 12, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.49%3.70M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.24%3.53M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
Politician trades
All politician trades in MKSI2 members of Congress reported 6 trades in MKS Inc since 2020. Newest filings:
| Filed | Politician | Type | Amount |
|---|---|---|---|
| Nov 21, 2025 |  Lisa C. McClain House · MI | Sell | $1K-$15K |
| Nov 21, 2025 | Lisa C. McClain House · MI | Buy | $1K-$15K |
| Nov 21, 2025 | Lisa C. McClain House · MI | Sell | $1K-$15K |
| Sep 12, 2025 | Lisa C. McClain House · MI | Buy | $1K-$15K |
| May 12, 2023 |  Tommy Tuberville Senate · AL | Sell (full) | $1K-$15K |
House · MI · Nov 21, 2025
Sell$1K-$15K
House · MI · Nov 21, 2025
Buy$1K-$15K
House · MI · Nov 21, 2025
Sell$1K-$15K
House · MI · Sep 12, 2025
Buy$1K-$15K
Senate · AL · May 12, 2023
Sell (full)$1K-$15K