Joseph B Donahue, Director, on May 27, 2026, sold 2,100 shares in MKS (MKSI) for $688,703. Following the Form 4 filing with the SEC, Donahue has control over a total of 10,033 common shares of the company, with 10,033 shares held directly.
SEC Filing:
https://www.sec.gov/Archives/edgar/data/1049502/000104950226000096/xslF345X05/form4.xml
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