ZSTK insider transaction filings
ZeroStack Corp. — 8 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-08-21. Screen ZSTK transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-21 | 4 | Rong Rudy — President | Sale (S): 1,000 @ $7.57 | EDGAR |
| 2026-07-20 | 4 | Heinrich Michael — Executive Chairman, Director | Purchase (P): 4,608,575 @ $0.75 · Grant/award (A): 500,000 (derivative) @ $0 | EDGAR |
| 2026-07-20 | 4 | Reis-Faria Daniel — CEO, Director | Option exercise/expiry (X): 5,954,743 @ $0.00 · Grant/award (A): 500,000 (derivative) @ $0 · Option exercise/expiry (X): 5,954,743 (derivative) @ $25.19 | EDGAR |
| 2026-07-20 | 4 | Vaiman Dany — CFO | Grant/award (A): 250,000 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | WOO EDWARD — Director | Grant/award (A): 35,000 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | LEVENTHAL MANFRED — Director | Grant/award (A): 35,000 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | Zeifman Laurence — Director | Grant/award (A): 28,000 (derivative) @ $0 | EDGAR |
| 2026-04-02 | 4 | Heinrich Michael — Executive Chairman, Director | Other (J): 4,902,220 (derivative) | EDGAR |
Recent 8-K events — ZeroStack Corp.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-21 | 8-K | 8.01 — Other Events | EDGAR |
| 2026-08-19 | 8-K | 1.01 — Entry into a Material Definitive Agreement 2.01 — Completion of Acquisition or Disposition of Assets 3.02 — Unregistered Sales of Equity Securities 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-07-23 | 8-K | 2.01 — Completion of Acquisition or Disposition of Assets | EDGAR |
| 2026-07-20 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year 5.07 — Submission of Matters to a Vote of Security Holders 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-06 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-31 | 8-K | 1.01 — Entry into a Material Definitive Agreement 1.02 — Termination of a Material Definitive Agreement 3.02 — Unregistered Sales of Equity Securities 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-01-29 | 8-K | 5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-01-06 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2025-12-31 | 8-K | 1.01 — Entry into a Material Definitive Agreement 1.02 — Termination of a Material Definitive Agreement 3.02 — Unregistered Sales of Equity Securities 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-12-23 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
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