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Robert J. Phillippy currently holds 12,041.34 shares of MKS INSTRUMENTS INC (MKSI), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert J. Phillippy has been a net seller of MKSI stock. They have purchased $364.9K and sold $8.3M worth of shares.
Robert J. Phillippy's most recent insider trade was on Sep 4, 2026, when they sold 7.08 shares at $0.00 per share.
Robert J. Phillippy serves as Executive at MKS INSTRUMENTS INC (MKSI). They have executed 157 insider transactions totaling $8.7M over their tenure at the company.
Robert J. Phillippy holds the position of Executive at MKS INSTRUMENTS INC, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 20 years and currently hold a stake valued at $0.
Robert J. Phillippy has shown a selling trading pattern, with $364.9K in total purchases and $8.3M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.
The largest transaction by Robert J. Phillippy was on Feb 5, 2026, when they sold $321.6K worth of ESE shares. This transaction involved 1,349 shares at $238.40 per share.
Robert J. Phillippy currently owns 12,041.34 shares of MKS INSTRUMENTS INC (MKSI), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Robert J. Phillippy's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Robert J. Phillippy has 157 Form 4 filings on record as an insider at MKS INSTRUMENTS INC.
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