MKS INSTRUMENTS INC
MKS INSTRUMENTS INC (MKSI) is a publicly traded company in the Unknown sector. Across all available filings, 35 corporate insiders have executed 1032 transactions totaling $409.2M, demonstrating a bearish sentiment with -$408.1M in net insider flow. The most recent transaction on Feb 20, 2026 involved a sale of 4,254 shares valued at $1.1M.
MKSI Insider Activity Summary
Who Is Buying MKSI Stock?
No significant insider buying has been recorded for MKSI in the recent period.
Who Is Selling MKSI Stock?
No significant insider selling has been recorded for MKSI in the recent period.
Is MKS INSTRUMENTS INC Insider Trading Bullish or Bearish?
Based on recent SEC filings, insider sentiment for MKSI is bearish with an Insider Alignment Score of 0/100 and a net flow of -$408.1M. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
MKSI Frequently Asked Questions
Understanding MKSI Insider Activity
Insider trading at MKS INSTRUMENTS INC (MKSI) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 35 insiders are actively trading MKSI stock, having executed 1032 transactions in the past 90 days. The most active insider is Group VI Cayman, L.l.c. Tc (Executive), who has made 1 transactions totaling $172.3M.
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Track MKS INSTRUMENTS INC Insider Activity
Get notified when executives and directors at MKSI file new Form 4 transactions