ZeroStack Corp. (ZSTK)
$5.58-$0.47 (-7.99%) Today
ZeroStack Corp is an AI focused asset management company. The company also operates a world-wide Commercial and wholesale business through its wholly owned subsidiary. ZeroStack is focused on providing exposure to decentralized AI through a concentrated digital asset approach structured to generate yield and fee-based income from staking validators, compute power technology companies, and complementary businesses within the ecosystem and across the wider AI landscape. The other segment commercial and wholesale (Phatebo and TruHC), which sell pharmaceutical products and mix of products across multiple categories including food and beverage, cannabis accessories and technology, personal care and wellness.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 4,608,575 | $3.48M |
| Open-market sale | 1 | 1,000 | $8K |
| Grant or award | 3 | 1,250,000 | |
| Other acquisition / disposition | 2 | 11,909,486 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
24 Form 4 filings on record, the earliest from Dec 17, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Rudy Rong - Officer | Open-market sale | Common Shares | 1,000 | $7.57 | $8K | |
| Michael Heinrich - Officer | Open-market purchase | Common Shares | 4,608,575 | $0.75 | $3.48M | |
| Michael Heinrich - Officer | Grant or award | Employee Stock Option (Right to Buy) | 500,000 | $0.00 | - | |
| Daniel Reis-Faria - Officer | Other | Common Shares | 5,954,743 | $0.00 | $595 | |
| Daniel Reis-Faria - Officer | Grant or award | Employee Stock Option (Right to Buy) | 500,000 | $0.00 | - | |
| Daniel Reis-Faria - Officer | Other | Pre-Funded Token Warrants | 5,954,743 | $25.19 | $150.00M | |
| Dany Vaiman - Officer | Grant or award | Employee Stock Option ("Right to Buy") | 250,000 | $0.00 | - | |
| Laurence Zeifman | Grant or award | Director Stock Option ("Right to Buy") | 28,000 | $0.00 | - | |
| Edward Woo | Grant or award | Director Stock Option ("Right to Buy") | 35,000 | $0.00 | - | |
| Manfred Leventhal | Grant or award | Director Stock Option ("Right to Buy") | 35,000 | $0.00 | - | |
| Michael Heinrich - Officer | Other | Convertible Promissory Note | 4,902,220 | - | - | |
| Dany Vaiman - Officer | Grant or award | Employee Stock Option ("Right to Buy") | 235,604 | $0.00 | - | |
| Daniel Reis-Faria - Officer | Grant or award | Employee Stock Option (Right to Buy) | 471,208 | $0.00 | - | |
| Michael Heinrich - Officer | Grant or award | Director Stock Option (Right to Buy) | 471,208 | $0.00 | - | |
| Michael Heinrich - Officer | Other | Convertible Promissory Note | 4,902,220 | - | - | |
| Michael John Brown | Grant or award | Deferred Share Units ("DSUs") | 7,468 | $0.00 | - | |
| Daniel Reis-Faria - Officer | Open-market purchase | Pre-Funded Token Warrants | 5,954,743 | $25.19 | $150.00M | |
| Clifford Starke - Officer | Derivative | Stock Appreciation Rights (SARs) | 1,028,665 | - | - | |
| Clifford Starke - Officer | Grant or award | Stock Appreciation Rights (SARs) | 1,028,665 | - | - | |
| Clifford Starke - Officer | Derivative | Stock Appreciation Rights (SARs) | 575,319 | - | - | |
| Clifford Starke - Officer | Grant or award | Stock Appreciation Rights (SARs) | 575,319 | - | - | |
| Manfred Leventhal | Derivative | Stock Appreciation Rights (SARs) | 5,000 | - | - | |
| Manfred Leventhal | Grant or award | Stock Appreciation Rights (SARs) | 5,000 | - | - | |
| Dany Vaiman - Officer | Derivative | Stock Appreciation Rights (SARs) | 342,888 | - | - | |
| Dany Vaiman - Officer | Grant or award | Stock Appreciation Rights (SARs) | 342,888 | - | - | |
| Dany Vaiman - Officer | Derivative | Stock Appreciation Rights (SARs) | 191,773 | - | - | |
| Dany Vaiman - Officer | Grant or award | Stock Appreciation Rights (SARs) | 191,773 | - | - | |
| Dany Vaiman - Officer | Derivative | Stock Appreciation Rights (SARs) | 372,500 | - | - | |
| Dany Vaiman - Officer | Grant or award | Stock Appreciation Rights (SARs) | 372,500 | - | - | |
| Harold Wolkin | Derivative | Stock Appreciation Rights (SARs) | 30,000 | - | - | |
| Harold Wolkin | Grant or award | Stock Appreciation Rights (SARs) | 30,000 | - | - | |
| Sammy Dorf - Officer | Grant or award | Common Shares | 250,000 | - | - | |
| Dany Vaiman - Officer | Grant or award | Stock Appreciation Rights ("SARs") | 372,500 | $0.00 | - | |
| Clifford Starke - Officer | Grant or award | Common Shares | 900,000 | - | - | |
| Harold Wolkin | Grant or award | Stock Appreciation Rights ("SARs") | 30,000 | $0.00 | - | |
| Edward Woo | Grant or award | Common Shares | 50,000 | - | - | |
| Manfred Leventhal | Grant or award | Stock Appreciation Rights ("SARs") | 5,000 | $0.00 | - |
ZeroStack Corp. (ZSTK) had 4 insider filings in the last 90 days, with the most recent on 2026-08-21. The full record for ZSTK runs to 24 Form 4 filings, the earliest from 2024-12-17. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
1 insider purchase of ZSTK was filed in the last 90 days, totaling $3.48M.
1 insider sale of ZSTK was filed in the last 90 days, totaling $8K.
This page tracks ZSTK Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
