Michael Heinrich, Director, Executive Chairman, on July 20, 2026, executed a purchase for 4,608,575 shares in ZeroStack (ZSTK) for $3,479,013. Following the Form 4 filing with the SEC, Heinrich has control over a total of 4,608,575 common shares of the company, with 4,608,575 controlled indirectly.
SEC Filing:
https://www.sec.gov/Archives/edgar/data/1790169/000091228226000998/xslF345X05/form4.xml