Heinrich Michael (CIK 2093136) reported 1 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-20). Recent activity: Buy ZSTK (4.6M shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-20 | ZeroStack Corp. (ZSTK) | Executive Chairman | Buy | 4.6M | $3.5M |
Source: SEC Form 4 filings · as of 2026-07-20