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Signal brief

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MKSIBearishInsider Tradeinsider
High materiality7/10

MKSI insider sale by Lee John Tseng-Chung

Aug 17, 2026, 11:01 AM EDT1 sourcesAI-analyzed
Why it may matterVerify against the original reporting

bearish

AI summary

What happened, with direct paths to the underlying reporting

Lee John Tseng-Chung, director and President & CEO, sold 10,000 MKSI shares valued at $3,020,100.

  • CEO sold 10k MKSI at $302.01
  • Total value ~$3.02M

Key facts

  1. 01

    Insider: Lee John Tseng-Chung

  2. 02

    Role: director, officer: President & CEO

  3. 03

    Transaction: S-Sale

  4. 04

    Shares: 10,000

  5. 05

    Price: $302.01

  6. 06

    Value: $3,020,100

How to read this signal

Transparent limits for an AI-generated research aid

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