ZSTK Insider Trading Activity and SEC Form 4 Filings
ZSTK insider trading summary
Over the past 12 months, insiders at ZeroStack Corp. (ZSTK) reported 1 open-market purchase worth $3.5M by 1 insider and 1 sale worth $8K by 1 insider on SEC Form 4. Net insider buying was $3.5M.
Latest ZSTK insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Aug 19, 2026 | Rudy Rong | President | Sell | $8K (1,000 @ $7.57) |
| Jul 20, 2026 | Michael Heinrich | Executive Chairman | Buy | $3.5M (4,608,575 @ $0.75) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.