3 insiders reported 3 Form 4 transactions for ZeroStack Corp. (ZSTK) over the past 18 months (most recent 2026-08-21). Recent activity: Rong Rudy (President) Sell 1,000 shares, Reis-Faria Daniel (CEO) Buy 6.0M shares, Heinrich Michael (Executive Chairman) Buy 4.6M shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | Rong Rudy | President | Sell | 1,000 | $7,570 |
| 2026-07-20 | Reis-Faria Daniel | CEO | Buy | 6.0M | $595 |
| 2026-07-20 | Heinrich Michael | Executive Chairman | Buy | 4.6M | $3.5M |
Source: SEC Form 4 filings · as of 2026-08-21