SEC Form 4 · accession 0000912282-26-000998
ZeroStack Corp. · ZSTK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Michael Heinrich
Officer — Executive Chairman · Director
Period of report
Jul 20, 2026
Accepted (ET)
Jul 20, 2026 · 6:31 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001790169
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common SharesF1,F2 | Jul 20, 2026 | P | 4,608,575 | $0.7549 | A | 4,608,575 | I | Held by Zero Gravity Labs, Inc. |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Employee Stock Option (Right to Buy)F3 | $5.10 | Jul 20, 2026 | A | 500,000 | A | — | May 5, 2036 | Common Shares | 500,000 | 500,000 | D |
Explanation of responses
- F1Purchase price in the form of native blockchain tokens; each token deemed to have a value of US$0.7549.
- F2Held by Zero Gravity Labs Inc., a Delaware corporation owned and controlled by the Reporting Person.
- F3The options were approved by the Issuer's board of directors on March 5, 2026, subject to shareholder approval, which occurred on July 20, 2026. The options vest in five equal installments; the vesting of each 20% installment is contingent on the Issuer's volume weighted average price reaching a specified threshold.