Market Cap
$17.9B
MKSI
MKS INC
$282.43 ▲ +4.13%
Prev close $271.24Market cap$17.9B
ConsensusStrong Buy
12-mo target$410.86 (+45.5%)
▲ Bullish
Analyst conviction 9/10
Insider Selling Cluster (2 insiders)30 New Institutional Positions20 Institutional Exits Industrials & Manufacturing
Snapshot
The big-picture read on MKSI right now — valuation, ownership and activity at a glance.
Cap Size
Large Cap
Analyst Consensus
Strong Buy (85%)
Inst. Holders
50 funds
Inst. Value
$24.9B
Inst. Activity
30 buys / 20 sells
Insider Activity
$0.00 buy / $37.2M sell
Insider Net $
-$37.2M
SEC Reports
20
Price chart 30d +12.4%
Daily candles (open–high–low–close) with volume. Green = up day, red = down day.
No data for this timeframe.
Vol
Recent activity
The latest filings, insider trades, analyst actions, press and options flow — newest first.
Sep 23, 2026 short_volume
Sep 1, 2026 SEC Short Volume: MKSI — 84.4% short (0.9M / 1.1M)
Short: 897,522 | Exempt: 5 | TRF Vol: 1,063,710 | Short Ratio: 84.4% | Off-exchange volume (dark poo
Director Elizabeth Mora filed a Form 144 notice of intent to sell 300 shares of MKS Inc common stock, valued at approxim
144 — Impact 2/10
Sep 1, 2026 Insider
Mora Elizabeth sold 300 shares
Director @ $250.96 ($75.3K)
Aug 17, 2026 Insider
Donlan Renee Martel was granted 954.044 shares
EVP, GC & CCO
Aug 14, 2026 Insider
Jul 13, 2026 SEC Lee John Tseng-Chung sold 10,000 shares
President & CEO @ $302.01 ($3.0M)
MKS Inc. announced it will release Q2 2026 financial results after market close on August 5, 2026. This is a routine dat
PRESS-RELEASE — Impact 2/10
Jun 30, 2026 Inst.
JPMORGAN CHASE & CO — ADD
3,373,844 shares ($1.4B)
Jun 30, 2026 Inst.
ALKEON CAPITAL MANAGEMENT LLC — NEW
1,072,040 shares ($476.8M)
Analyst ratings buy % -1.2%
How Wall Street rates the stock today, and the latest firm-by-firm actions.
85% rate it Buy or better · 20 analysts
Recent analyst actions
| Date | Firm | Action | Rating | Firm rating |
|---|---|---|---|---|
| Sep 17, 2026 | Morgan Stanley | MAINTAIN | Overweight | 55% |
| Aug 25, 2026 | Mizuho | MAINTAIN | Outperform | 52% |
| Aug 7, 2026 | Citigroup | MAINTAIN | Buy | 55% |
| Aug 7, 2026 | JP Morgan | MAINTAIN | Overweight | 55% |
| Aug 7, 2026 | Wells Fargo | MAINTAIN | Equal-Weight | 54% |
| Aug 6, 2026 | Needham | MAINTAIN | Buy | 50% |
| Aug 3, 2026 | Cantor Fitzgerald | REITERATE | Overweight | 49% |
| Jul 24, 2026 | Citigroup | MAINTAIN | Buy | 55% |
| Jul 9, 2026 | Mizuho | MAINTAIN | Outperform | 52% |
| Jul 6, 2026 | Morgan Stanley | MAINTAIN | Overweight | 55% |
Monthly consensus history
| Period | Str. Buy | Buy | Hold | Sell | Str. Sell | Buy % | Distribution |
|---|---|---|---|---|---|---|---|
| Sep 1, 2026 | 4 | 13 | 2 | 1 | 0 | 85% | |
| Aug 1, 2026 | 4 | 14 | 2 | 1 | 0 | 86% | |
| Jul 1, 2026 | 4 | 14 | 2 | 1 | 0 | 86% | |
| Jun 1, 2026 | 4 | 13 | 2 | 1 | 0 | 85% | |
| May 1, 2026 | 4 | 13 | 2 | 1 | 0 | 85% | |
| Apr 1, 2026 | 4 | 13 | 2 | 1 | 0 | 85% | |
| Mar 1, 2026 | 4 | 13 | 2 | 1 | 0 | 85% | |
| Feb 1, 2026 | 4 | 14 | 2 | 1 | 0 | 86% |
Price targets
Where 14 covering analysts think MKSI trades over the next 12 months.
$410.86 +45.5% upside Strong Buy
Current$282.43 Low$270.00 Median$405.00 High$600.00 14 analysts
$270.00$600.00
Analyst rating None as of Oct 2, 2026
Reports & filings
AI-scored summaries of recent SEC filings and press releases, with sentiment and impact.
20 SEC filing reports analyzed · 0 bullish, 1 bearish, 0 mixed, 19 neutral · avg impact 3.0/10.
NEUTRAL1442/10
Director Elizabeth Mora filed a Form 144 notice of intent to sell 300 shares of MKS Inc common stock
Sep 1, 2026
NEUTRALPRESS-RELEASE2/10
MKS Inc. announced it will release Q2 2026 financial results after market close on August 5, 2026. T
Jul 13, 2026
NEUTRALCLUSTER2/10
Three MKSI insiders sold a total of $2.75M in open-market transactions over a one-week window, inclu
Jun 8, 2026
NEUTRALCLUSTER3/10
Four MKSI insiders sold a total of $2.82M in open-market transactions over a 7-day window, with the
Jun 2, 2026
Upcoming & catalyst events
Scheduled dates plus disclosed catalysts — earnings, dividends, enforcement, FDA and clinical-trial events. Colored dot = impact.
Sep 23, 2026
short_volume
Short Volume: MKSI — 84.4% short (0.9M / 1.1M)
Short: 897,522 | Exempt: 5 | TRF Vol: 1,063,710 | Short Ratio: 84.4% | Off-exchange volume (dark pool + OTC)
Sep 14, 2026
other
MKS Inc. Releases 2026 Environmental, Social, Governance Report
ANDOVER, Mass., Sept. 14, 2026 (GLOBE NEWSWIRE) -- MKS Inc. (NASDAQ: MKSI), a global provider of enabling technologies that transform our world, today
Sep 7, 2026
dark_pool
Dark Pool: MKSI — 1.6M shares, 39,707 trades
Week starting 2026-09-07. Total ATS volume: 1,622,318 shares across 39,707 trades.
Sep 4, 2026
short_volume
Short Volume: MKSI — 55.5% short (0.3M / 0.6M)
Short: 329,822 | Exempt: 358 | TRF Vol: 594,693 | Short Ratio: 55.5% | Off-exchange volume (dark pool + OTC)
Aug 31, 2026
dark_pool
Dark Pool: MKSI — 2.1M shares, 59,705 trades
Week starting 2026-08-31. Total ATS volume: 2,134,405 shares across 59,705 trades.
Earnings estimates
Forecast earnings per share and revenue by period — and whether estimates are rising.
| Period | EPS Est. | Range | Growth | 30d Rev | Up/Dn | Revenue | # |
|---|---|---|---|---|---|---|---|
| Current Q | $3.63 | $3.55–$3.85 | 88.1% | +0.2% | 11↑ 0↓ | $1.4B | 13 |
| Next Q | $3.92 | $3.56–$4.30 | 58.7% | +0.1% | 10↑ 0↓ | $1.4B | 13 |
| Current FY | $13.15 | $12.80–$13.61 | 66.8% | +0.1% | 11↑ 0↓ | $5.1B | 13 |
| Next FY | $17.65 | $16.50–$19.60 | 34.3% | +0.8% | 12↑ 0↓ | $6.1B | 13 |
Current-quarter EPS estimate — revision history
| When | EPS estimate | Change vs now |
|---|---|---|
| Current | $3.631 | — |
| 7d ago | $3.625 | +0.006 |
| 30d ago | $3.625 | +0.006 |
| 60d ago | $3.168 | +0.463 |
| 90d ago | $3.153 | +0.478 |
Institutional ownership
Which big funds own MKSI (from quarterly 13F filings) and who is adding or trimming.
50 institutional holders with $24.9B total value (56,280,775 shares) as of 2026-Q2. Top holders: BlackRock,, Invesco, VANGUARD. Net buying activity: 30 institutions added/increased vs 20 reduced.
Top holders — 2026-Q2
| Fund | Shares | Value | % Tracked | Last move |
|---|---|---|---|---|
| BlackRock, Inc. | 6,930,030 | $3.1B | 12.4% | — |
| Invesco Ltd. | 4,661,664 | $2.1B | 8.3% | — |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3,707,327 | $1.6B | 6.6% | — |
| JPMORGAN CHASE & CO | 3,373,844 | $1.4B | 5.6% | ADD +60.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,049,560 | $1.4B | 5.4% | — |
| STATE STREET CORP | 2,134,663 | $949.4M | 3.8% | — |
| Point72 Asset Management, L.P. | 1,996,843 | $888.2M | 3.6% | — |
| Capital International Investors | 1,915,187 | $851.9M | 3.4% | — |
| GEODE CAPITAL MANAGEMENT, LLC | 1,539,072 | $686.6M | 2.8% | — |
| FMR LLC | 1,499,498 | $667.0M | 2.7% | — |
Recent position changes
| Fund | Action | Prev | Current | Change | Value |
|---|---|---|---|---|---|
| JPMORGAN CHASE & CO | ADD | 2,096,342 | 3,373,844 | +60.9% | $1.4B |
| ALKEON CAPITAL MANAGEMENT LLC | NEW | — | 1,072,040 | — | $476.8M |
| NORGES BANK | NEW | — | 954,667 | — | $424.6M |
| Sachem Head Capital Management LP | NEW | — | 812,700 | — | $361.5M |
| CITADEL ADVISORS LLC | TRIM | 947,032 | 697,670 | -26.3% | $310.3M |
| MORGAN STANLEY | ADD | 515,063 | 681,576 | +32.3% | $303.2M |
| MILLENNIUM MANAGEMENT LLC | TRIM | 894,369 | 645,071 | -27.9% | $286.9M |
| VICTORY CAPITAL MANAGEMENT INC | TRIM | 878,758 | 609,027 | -30.7% | $270.9M |
| Qube Research & Technologies Ltd | DOUBLED | 74,360 | 606,068 | +715.0% | $269.6M |
| DIMENSIONAL FUND ADVISORS LP | TRIM | 835,345 | 533,145 | -36.2% | $237.0M |
Insider activity
Buying and selling by company executives and directors (SEC Form 4).
16 insiders, 50 transactions. Net -$37.2M — $0.00 bought, $37.2M sold.
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | Mora Elizabeth | Director | SELL | 300 | $250.96 | $75.3K |
| Aug 17, 2026 | Donlan Renee Martel | EVP, GC & CCO | AWARD | 954.044 | — | — |
| Aug 14, 2026 | Lee John Tseng-Chung | President & CEO | SELL | 10,000 | $302.01 | $3.0M |
| Aug 3, 2026 | Williams John Edward | EVP & GM, PSD | SELL | 457 | $288.31 | $131.8K |
| Jun 12, 2026 | Schreiner James Alan | EVP & COO | SELL | 2,471 | $345.52 | $853.8K |
| Jun 12, 2026 | Schreiner James Alan | EVP & COO | SELL | 812 | $346.41 | $281.3K |
| Jun 12, 2026 | Schreiner James Alan | EVP & COO | SELL | 217 | $347.00 | $75.3K |
| Jun 5, 2026 | McCarthy Michelle M | SVP & Chief Accounting Officer | SELL | 2,434 | $315.23 | $767.3K |
| Jun 1, 2026 | Mora Elizabeth | Director | SELL | 300 | $318.02 | $95.4K |
| Jun 1, 2026 | Henry David Philip | EVP, Global Str Mktg & GM, MSD | SELL | 6,000 | $314.43 | $1.9M |
Short interest & halts
FINRA semi-monthly short positions, Reg SHO threshold status, and recent trading halts for MKSI.
Shares short
6,074,579
Settlement Sep 15, 2026
Change vs prior
-2.9%
Semi-monthly cycle
Days to cover
4.6
At avg daily volume
Of shares outstanding
≈9.0%
Estimate — not % of float
All MKSI filing & press-release reports (20)
- 144 reportSep 1, 2026
- PRESS-RELEASE reportJul 13, 2026
- CLUSTER reportJun 8, 2026
- CLUSTER reportJun 2, 2026
- CLUSTER reportJun 2, 2026
- CLUSTER reportMay 28, 2026
- CLUSTER reportMay 28, 2026
- CLUSTER reportMay 26, 2026
- CLUSTER reportMay 26, 2026
- CLUSTER reportMay 19, 2026
- CLUSTER reportMay 15, 2026
- CLUSTER reportMay 14, 2026
- CLUSTER reportMay 12, 2026
- PRESS-RELEASE reportApr 13, 2026
- 8-K reportApr 6, 2026
- DEFA14A reportMar 31, 2026
- CLUSTER reportMar 13, 2026
- CLUSTER reportMar 9, 2026
- CLUSTER reportMar 3, 2026
- CLUSTER reportFeb 25, 2026