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Equity · Technology

MKSI

MKS Inc. · NasdaqGS

$311 +1.63% 1D Finazon · prior-day close · Aug 14, 2026
Price · Chart
Our own end-of-day closes 61 sessions
$450 $250 19 May 14 Aug

The line runs $293.97 on 19 May through $311 on 14 August, on a scale from $250 to $450. Days the market did not trade hold the previous close, flat.

Track this symbol on TradingView

The chart above plots the price of MKSI over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 61 sessions over that window: $293.97 on 19 May 2026 through $311 on 14 August 2026.

Market cap $21.0B
P/E (TTM) 55.4
52-week range $98 – $447.81
Avg volume 396.7K

Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Aug 17, 2026

MKSI insider trades

SEC Form 4 · last 90 days · newest reported trade 3 Aug 2026
Open-market buys 0
Open-market sells 11
Net sold $18.46M
Non-trade filings 0
Date Insider Type Shares Value
03 Aug 2026 Williams John Edward EVP & GM, PSD Sell 457 $132K
12 Jun 2026 Schreiner James Alan EVP & COO Sell 3,500 $1.21M
10 Jun 2026 Schreiner James Alan EVP & COO Sell 781 $248K
05 Jun 2026 McCarthy Michelle M SVP & Chief Accounting Officer Sell 2,434 $767K
01 Jun 2026 Henry David Philip EVP, Global Str Mktg & GM, MSD Sell 6,000 $1.89M
01 Jun 2026 Mora Elizabeth Director Sell 300 $95K
27 May 2026 COLELLA GERALD G Director Sell 20,000 $6.67M
27 May 2026 Donahue Joseph B Director Sell 2,100 $689K
26 May 2026 Henry David Philip EVP, Global Str Mktg & GM, MSD Sell 2,500 $826K
22 May 2026 Lee John Tseng-Chung President & CEO Sell 10,000 $3.15M
22 May 2026 Mayampurath Ramakumar EVP & CFO Sell 8,810 $2.78M

MKSI reported financials

SEC EDGAR XBRL

MKSI reported revenue of $3.9B for the fiscal year ended 31 Dec 2025. Net income over the same period was $295.0M.

Figure Reported Period
Revenue $3.9B 31 Dec 2025 fiscal year
Net income $295.0M 31 Dec 2025 fiscal year
Diluted EPS $4.37 31 Dec 2025 fiscal year
Total assets $8.9B 30 Jun 2026 at period end
Total equity $3.0B 30 Jun 2026 at period end

Source: SEC EDGAR XBRL company facts · latest period ended 30 Jun 2026

MKSI earnings

SEC EDGAR
Date Period EPS Revenue
30 Jun 2026 Q2 2026 $2.41 $1.25B
31 Mar 2026 Q1 2026 $1.18 $1.08B
31 Dec 2025 FY 2025 $4.37 $3.93B
30 Sep 2025 Q3 2025 $1.10 $988M
30 Jun 2025 Q2 2025 $0.92 $973M
31 Mar 2025 Q1 2025 $0.77 $936M
31 Dec 2024 FY 2024 $2.81 $3.59B
30 Sep 2024 Q3 2024 $0.92 $896M

Next report no date announced in SEC filings yet

Reported figures & scheduled dates · SEC EDGAR filings

MKSI institutional holders

SEC Form 13F

15 of the 45 institutional funds we track reported a MKSI position for the quarter ended 30 Jun 2026 — a combined $2.7B; the latest of those filings landed 14 Aug 2026.

Fund Action Shares Value
Point72 Asset Management Held (±25%) +24.0% shares 1,996,843 $888.2M
Whale Rock Capital Management Held (±25%) −2.7% shares 1,271,373 $565.5M
Citadel Advisors Trimmed −26.3% shares 697,670 $310.3M
Millennium Management Trimmed −27.9% shares 645,071 $286.9M
AQR Capital Management Held (±25%) +3.5% shares 638,333 $280.2M
Balyasny Asset Management Trimmed −36.1% shares 260,178 $115.7M
Marshall Wace Added +128.1% shares 225,115 $100.1M
Two Sigma Investments Trimmed −48.6% shares 143,365 $63.8M
Glenview Capital Management New position 98,532 $43.8M
Renaissance Technologies Trimmed −61.0% shares 40,403 $18.0M

Showing the 10 largest of 15 reported positions. The figures above count all of them.

Source: SEC EDGAR 13F filings

MKSI fails-to-deliver

SEC CNS data

On 07 Jul 2026, 39 shares of MKSI failed to deliver (about $14K).

Settlement date Shares failed Notional % of shares out
07 Jul 2026 39 $14K <0.001%

Source: SEC fails-to-deliver (CNS) data