Back to news

MKS Inc. Falls as Sector Weakness Seems to Outweigh a Lack of Fresh Company News

Investivoq PriceTracker

MKS Inc. (MKSI) is down 4.5% today. Here is some analysis on what might have caused this price movement.

Analysis: The most likely explanation is that there is no obvious company-specific catalyst today, and the stock appears to be trading lower alongside weakness in technology and semiconductor-related names. This could be because investors are rotating out of higher-beta chip equipment stocks and taking profits while waiting for MKS’s next earnings report in early November. ([mksinstrumentsinc.gcs-web.com](https://mksinstrumentsinc.gcs-web.com/news-releases))

Details:

  • MKS’s investor news page does not show a new October 12 company announcement; the latest listed release is its September 14 ESG report, which weakens the case for a fresh company-driven selloff. ([mksinstrumentsinc.gcs-web.com](https://mksinstrumentsinc.gcs-web.com/news-releases))
  • The company’s most recent current report was filed on August 5, when MKS posted second-quarter revenue of $1.248 billion, said results were above the high end of guidance, and projected third-quarter revenue of about $1.35 billion, plus or minus $40 million. ([sec.gov](https://www.sec.gov/Archives/edgar/data/1049502/000119312526335274/0001193125-26-335274-index.htm))
  • The broader market session has featured pressure on technology shares even as other areas of the market were firmer, which fits a sector-rotation explanation more than an MKS-specific one. ([apnews.com](https://apnews.com/article/a9a26b9706963afe9bdeda1b2eb1f51d?utm_source=openai))
  • Intraday market data showed MKSI trading roughly 4% lower and below its 50-day average, which may have added technical selling pressure. ([stockanalysis.com](https://stockanalysis.com/stocks/mksi/forecast/?utm_source=openai))

    • Sources:

    MKS Investor Relations, SEC, AP, StockAnalysis

    Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

    $MKSI Insider Trading Activity

    MKSI Insider Trades

    $MKSI insiders have traded $MKSI stock on the open market 24 times in the past 6 months. Of those trades, 0 have been purchases and 24 have been sales.

    Here’s a breakdown of recent trading of $MKSI stock by insiders over the last 6 months:

    • GERALD G COLELLA has made 0 purchases and 7 sales selling 20,000 shares for an estimated $6,668,075.
    • JOHN TSENG-CHUNG LEE (President & CEO) has made 0 purchases and 2 sales selling 20,000 shares for an estimated $6,174,900.
    • RAMAKUMAR MAYAMPURATH (EVP & CFO) sold 8,810 shares for an estimated $2,779,378
    • DAVID PHILIP HENRY (EVP, Global Str Mktg & GM, MSD) has made 0 purchases and 2 sales selling 8,500 shares for an estimated $2,712,833.
    • JAMES ALAN SCHREINER (EVP & COO) has made 0 purchases and 4 sales selling 4,281 shares for an estimated $1,458,275.
    • MICHELLE M MCCARTHY (SVP & Chief Accounting Officer) sold 2,434 shares for an estimated $767,269
    • JACQUELINE F MOLONEY has made 0 purchases and 2 sales selling 2,400 shares for an estimated $758,782.
    • JOSEPH B DONAHUE sold 2,100 shares for an estimated $688,703
    • PETER III CANNONE sold 1,350 shares for an estimated $409,590
    • ELIZABETH MORA has made 0 purchases and 2 sales selling 600 shares for an estimated $170,694.
    • JOHN EDWARD WILLIAMS (EVP & GM, PSD) sold 457 shares for an estimated $131,757

    To track insider transactions, check out Investivoq's insider trading dashboard. You can access data on insider stock transactions through the Investivoq API insider transaction endpoint.

    EARLY ACCESS
    Receive MKSI Data Alerts
    Real-time alerts on filings, insider trades, and market signals — before everyone else.
    Get Alerts →

    $MKSI Hedge Fund Activity

    We have seen 436 institutional investors add shares of $MKSI stock to their portfolio, and 289 decrease their positions in their most recent quarter.

    Here are some of the largest recent moves:

    • JPMORGAN CHASE & CO added 3,373,844 shares (+inf%) to their portfolio in Q2 2026, for an estimated $1,500,685,811
    • VICTORY CAPITAL MANAGEMENT INC removed 1,953,372 shares (-76.2%) from their portfolio in Q2 2026, for an estimated $868,859,865
    • ALKEON CAPITAL MANAGEMENT LLC added 1,072,040 shares (+inf%) to their portfolio in Q2 2026, for an estimated $476,843,392
    • INVESCO LTD. added 940,205 shares (+25.3%) to their portfolio in Q2 2026, for an estimated $418,203,184
    • SACHEM HEAD CAPITAL MANAGEMENT LP added 812,700 shares (+inf%) to their portfolio in Q2 2026, for an estimated $361,488,960
    • SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. added 808,198 shares (+inf%) to their portfolio in Q2 2026, for an estimated $359,486,470
    • QUBE RESEARCH & TECHNOLOGIES LTD added 531,708 shares (+715.0%) to their portfolio in Q2 2026, for an estimated $236,503,718

    To track hedge funds' stock portfolios, check out Investivoq's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Investivoq API 13F endpoint.

    $MKSI Analyst Ratings

    Wall Street analysts have issued reports on $MKSI in the last several months. We have seen 1 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

    Here are some recent analyst ratings:

    • Needham issued a "Buy" rating on 05/07/2026

    To track analyst ratings and price targets for $MKSI, check out Investivoq's $MKSI forecast page.

    $MKSI Price Targets

    Multiple analysts have issued price targets for $MKSI recently. We have seen 11 analysts offer price targets for $MKSI in the last 6 months, with a median target of $415.0.

    Here are some recent targets:

    • Vijay Rakesh from Mizuho set a target price of $415.0 on 07/09/2026
    • Joseph Moore from Morgan Stanley set a target price of $442.0 on 07/06/2026
    • Bhavesh Lodaya from BMO Capital set a target price of $453.0 on 06/30/2026
    • Steve Barger from Keybanc set a target price of $475.0 on 06/29/2026
    • C.J. Muse from Cantor Fitzgerald set a target price of $600.0 on 06/29/2026
    • Vivek Arya from B of A Securities set a target price of $500.0 on 06/23/2026
    • Joseph Quatrochi from Wells Fargo set a target price of $300.0 on 05/08/2026

    This article is not financial advice. See Investivoq's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.