Heinrich Michael 4

What Happened

• Heinrich Michael, Executive Chairman and Director of ZeroStack Corp. (ZSTK), reported an "other acquisition or disposition" (transaction code J) on March 31, 2026 that disposed of 4,902,220 derivative securities. No per‑share price or cash proceeds are reported on the Form 4 (price listed as N/A). This was not an open‑market sale of common stock but a derivative transaction tied to a note settlement between the issuer and an affiliated entity.

Key Details

• Transaction date: 2026-03-31. Price: N/A (derivative settlement). Shares affected: 4,902,220 (derivative).
• Shares owned after the transaction: Not stated in the filing excerpt provided.
• Footnote summary: The issuer entered a Note Settlement Agreement with Zero Gravity Labs Inc. (0G), a Delaware company owned and controlled by Heinrich Michael, under which the issuer paid 50,000,000 Tokens to 0G by March 31, 2026 to satisfy a convertible promissory note. The original note represented a principal amount of 50,000,000 0G bitcoin tokens.
• Filing timeliness: Form 4 filed 2026-04-02 for a 2026-03-31 transaction — appears to have been filed within the standard two business days.

Context

• This was a related‑party derivative settlement (the company settled a convertible note held by an entity owned by the reporting person) rather than a conventional stock sale or purchase. Such transactions typically reflect contract settlement terms and do not necessarily signal the insider's buy/sell sentiment about the company's common stock.