Insider · CIK 0002093136
Michael Heinrich
Files at ZSTK (ZeroStack Corp.). First filing -, latest -.
Michael Heinrich files SEC Form 4 as chair and director at ZSTK (ZeroStack Corp.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Michael Heinrich has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 3 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | ZSTK ZeroStack Corp. | JOther Convertible Promissory Notederivativeindirect: Held by Zero Gravity Labs Inc., a corporation owned and controlled by the Reporting Person | -4,902,220 | - | - | 0 | Apr 2, 2026 |
| Dec 19, 2025 | ZSTK ZeroStack Corp. | AGrant or award Director Stock Option (Right to Buy)derivative | +471,208 | $0.00 | $0 | 471,208 | Dec 22, 2025 |
| Oct 23, 2025 | ZSTK ZeroStack Corp. | XIn-the-money exercise Convertible Promissory Notederivativeindirect: Held by Zero Gravity Labs Inc., a corporation owned and controlled by the Reporting Person | +4,902,220 | - | - | 4,902,220 | Oct 27, 2025 |
Questions about Michael Heinrich
Answered from the filings on this page, as of the latest one.
Is Michael Heinrich buying or selling?
Michael Heinrich has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Michael Heinrich's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Michael Heinrich has 0.
Where does Michael Heinrich file Form 4?
Michael Heinrich has filed Form 4 at ZSTK (ZeroStack Corp.) as Executive Chairman. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.