ZSTK
ZeroStack Corp.Company with tickers: ZSTK
CIK
1790169
CUSIP
98956L101
Shares Outstanding
2,430,808
Price
Holdings
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trading
Congress Trades
| Date | Insider | Role | Type | Shares |
|---|---|---|---|---|
| 2026-03-31 | Heinrich Michael | Director, Executive Chairman | Other | 4,902,220 |
| 2026-01-06 | Zeifman Laurence | Director | Other | 0 |
| 2025-12-19 | Vaiman Dany | CFO | Award | 235,604 |
| 2025-12-19 | Reis-Faria Daniel | Director, CEO | Award | 471,208 |
| 2025-12-19 | Heinrich Michael | Director, Executive Chairman | Award | 471,208 |
| 2025-10-23 | Heinrich Michael | Director, Executive Chairman | Exercise | 4,902,220 |
| 2025-10-22 | BROWN MICHAEL JOHN | Director | Award | 7,468 |
| 2025-10-09 | Reis-Faria Daniel | Director, CEO | Buy | 5,954,743 |
| 2025-09-20 | Reis-Faria Daniel | Director, CEO | Other | 0 |
| 2025-09-20 | Heinrich Michael | Director, Executive Chairman | Other | 0 |
| 2025-06-30 | Wolkin Harold | Director | Other | 30,000 |
| 2025-06-30 | Wolkin Harold | Director | Award | 30,000 |
| 2025-06-30 | LEVENTHAL MANFRED | Director | Award | 5,000 |
| 2025-06-30 | LEVENTHAL MANFRED | Director | Other | 5,000 |
| 2025-06-30 | Starke Clifford | Director, CEO | Award | 1,028,665 |
| 2025-06-30 | Starke Clifford | Director, CEO | Other | 1,028,665 |
| 2025-06-30 | Vaiman Dany | CFO | Award | 342,888 |
| 2025-06-30 | Vaiman Dany | CFO | Other | 342,888 |
| 2024-12-15 | WOO EDWARD | Director | Other | 2,021 |
| 2024-12-15 | WOO EDWARD | Director | Award | 50,000 |
| 2024-12-15 | Wolkin Harold | Director | Award | 30,000 |
| 2024-12-15 | Vaiman Dany | CFO | Award | 372,500 |
| 2024-12-15 | Starke Clifford | Director, CEO | Other | 1,340,056 |
| 2024-12-15 | Starke Clifford | Director, CEO | Award | 900,000 |
| 2024-12-15 | LEVENTHAL MANFRED | Director | Award | 5,000 |
| 2024-12-15 | DORF SAMMY | Director | Award | 250,000 |
| 2024-12-05 | LEVENTHAL MANFRED | Director | Other | 0 |
| 2024-12-05 | DORF SAMMY | Director | Other | 0 |
| 2024-09-13 | Starke Clifford | Director, CEO | Buy | 6,795 |
| 2024-09-13 | Starke Clifford | Director, CEO | Other | 1,340,056 |
| 2024-09-06 | Wolkin Harold | Director | Buy | 5,000 |
| 2024-09-05 | Starke Clifford | Director, CEO | Buy | 51 |
| 2024-08-29 | Wolkin Harold | Director | Other | 0 |
| 2024-08-14 | Vaiman Dany | CFO | Award | 191,773 |
| 2024-08-14 | Starke Clifford | Director, CEO | Award | 575,319 |
| 2024-05-02 | CAHILL BRENDAN | Director | Other | 0 |
| 2024-04-08 | Starke Clifford | Director, CEO | Buy | 526,315 |
| 2024-04-08 | Starke Clifford | Director, CEO | Other | 473,995 |
| 2023-12-15 | Vaiman Dany | CFO | Award | 342,888 |
| 2023-12-15 | Starke Clifford | Director, CEO | Other | 565,714 |
| 2023-12-15 | Starke Clifford | Director, CEO | Award | 1,028,665 |
| 2023-11-15 | Vaiman Dany | CFO | Award | 149,024 |
| 2023-11-15 | SOLOMON THOMAS | Director | Award | 35,766 |
| 2023-11-15 | WOO EDWARD | Director | Award | 74,512 |
| 2023-11-15 | WOO EDWARD | Director | Other | 2,021 |
| 2023-11-15 | Taylor Kevin | Director, Chairman | Other | 14,550 |
| 2023-11-15 | Taylor Kevin | Director, Chairman | Award | 124,186 |
| 2023-11-15 | Starke Clifford | Director, CEO | Other | 33,579 |
| 2023-11-15 | Starke Clifford | Director, CEO | Award | 327,851 |
| 2023-06-25 | Rakine Hussein | Director | Other | 346,250 |
| 2023-06-06 | Taylor Kevin | Director, Chairman | Other | 14,550 |
| 2023-06-06 | SOLOMON THOMAS | Director | Other | 0 |
| 2023-05-18 | Cohen, Matthew S. | General Counsel | Other | 0 |
| 2023-04-16 | Rakine Hussein | Director | Other | 6,925,000 |
| 2023-04-16 | Rakine Hussein | Director | Other | 492,019 |
| 2023-03-17 | LESLIE JOHN TIMOTHY | Director | Award | 125,000 |
| 2023-03-17 | MASTRONARDI MARC | Director | Award | 150,000 |
| 2023-03-17 | ROA JUAN CARLOS GOMEZ | Director | Award | 150,000 |
| 2023-03-17 | WOO EDWARD | Director | Award | 100,000 |
| 2023-03-17 | Konigsberg Brandon | Director | Award | 100,000 |
| 2023-03-17 | Richardson Beverley | Director | Award | 150,000 |
| 2023-01-01 | Cohen, Matthew S. | General Counsel | Other | 0 |
| 2023-01-01 | Cohen, Matthew S. | General Counsel | Other | 419,756 |
| 2023-01-01 | Konigsberg Brandon | Director | Other | 0 |
| 2023-01-01 | ROA JUAN CARLOS GOMEZ | Director | Other | 0 |
| 2023-01-01 | ROA JUAN CARLOS GOMEZ | Director | Other | 1,892,509 |
| 2023-01-01 | WARNOCK JASON | CCO | Other | 335,801 |
| 2023-01-01 | WARNOCK JASON | CCO | Other | 0 |
| 2023-01-01 | MORGAN ANNABELLA MANALO | Director | Other | 0 |
| 2023-01-01 | LESLIE JOHN TIMOTHY | Director | Other | 13,574 |
| 2023-01-01 | LESLIE JOHN TIMOTHY | Director | Other | 0 |
| 2023-01-01 | WOO EDWARD | Director | Other | 203,713 |
| 2023-01-01 | Vaiman Dany | CFO | Other | 436,529 |
| 2023-01-01 | Starke Clifford | Director, CEO | Other | 2,922,889 |
| 2023-01-01 | Casner Jessie | CMO | Other | 219,693 |
| 2023-01-01 | Casner Jessie | CMO | Other | 0 |
| 2023-01-01 | Richardson Beverley | Director | Other | 0 |
| 2023-01-01 | MASTRONARDI MARC | Director | Other | 10,000 |
| 2023-01-01 | MASTRONARDI MARC | Director | Other | 0 |
| 2023-01-01 | MERCHAN LUIS | Director, CEO & Chairman of the Board | Other | 1,975,149 |
| 2023-01-01 | MERCHAN LUIS | Director, CEO & Chairman of the Board | Other | 0 |
| 2023-01-01 | Garayev Elshad | CFO | Other | 0 |