ZeroStack Corp. SEC filings ZSTK
ZeroStack Corp. has 367 filings in SEC EDGAR's recent list, going back to Oct 11, 2019. Its latest annual report, Form ARS, was filed on May 8, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Jul 31, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 2, 2026 (material agreement, agreement ended, officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 19, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 4, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 2, 2026 | — |
| 4 | Insider transaction | Aug 21, 2026 | Aug 19, 2026 |
| 3 | Initial insider ownership | Aug 21, 2026 | Aug 18, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 21, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 21, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 21, 2026 | — |
| 4 | Insider transaction | Jul 20, 2026 | Jul 20, 2026 |
| 4 | Insider transaction | Jul 20, 2026 | Jul 20, 2026 |
| 4 | Insider transaction | Jul 20, 2026 | Jul 20, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 7, 2026 | May 5, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 2, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 3 | Initial insider ownership | Jan 15, 2026 | Jan 6, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 23, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 23, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 23, 2025 | — |
| 4 | Insider transaction | Dec 22, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Oct 27, 2025 | Oct 23, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Oct 27, 2025 | — |
| 4 | Insider transaction | Oct 23, 2025 | Oct 22, 2025 |
| 3 | Initial insider ownership | Oct 22, 2025 | Sep 20, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Oct 10, 2025 | — |
| 4 | Insider transaction | Oct 10, 2025 | Oct 9, 2025 |
| 3 | Initial insider ownership | Oct 6, 2025 | Sep 20, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 21, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 21, 2025 | — |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 2, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 29, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 21, 2025 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 17, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 17, 2024 | — |
| 4 | Insider transaction | Dec 17, 2024 | Dec 15, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 15, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 15, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 15, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 15, 2024 |
| 4 | Insider transaction | Dec 17, 2024 | Dec 15, 2024 |
| 3 | Initial insider ownership | Dec 16, 2024 | Dec 5, 2024 |
| 3 | Initial insider ownership | Dec 13, 2024 | Dec 5, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Sep 17, 2024 | Sep 13, 2024 |
| SC 13D | Ownership over 5% (active) | Sep 12, 2024 | — |
| 4 | Insider transaction | Sep 11, 2024 | Sep 6, 2024 |
| 3 | Initial insider ownership | Sep 11, 2024 | Aug 29, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 11, 2024 | — |
| 4 | Insider transaction | Sep 9, 2024 | Dec 15, 2023 |
| 4 | Insider transaction | Sep 6, 2024 | Dec 15, 2023 |
| SC 13G | Ownership over 5% (passive) | Jun 27, 2024 | — |
| 3 | Initial insider ownership | May 21, 2024 | May 2, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 15, 2024 | — |
| 4 | Insider transaction | Apr 9, 2024 | Apr 8, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Dec 8, 2023 | — |
| 4 | Insider transaction | Nov 15, 2023 | Nov 15, 2023 |
| 4 | Insider transaction | Nov 15, 2023 | Nov 15, 2023 |
| 4 | Insider transaction | Nov 15, 2023 | Nov 15, 2023 |
| 4 | Insider transaction | Nov 15, 2023 | Nov 15, 2023 |
| 4 | Insider transaction | Nov 15, 2023 | Nov 15, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 15, 2023 | — |
| 4 | Insider transaction | Jun 27, 2023 | Jun 25, 2023 |
| 3 | Initial insider ownership | Jun 16, 2023 | Jun 6, 2023 |
| 3 | Initial insider ownership | Jun 16, 2023 | Jun 6, 2023 |
| 144 | Notice of proposed sale | May 22, 2023 | — |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | Apr 26, 2023 | Apr 16, 2023 |
| 3 | Initial insider ownership | Apr 26, 2023 | Apr 16, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 21, 2023 | — |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| 4 | Insider transaction | Mar 21, 2023 | Mar 17, 2023 |
| SC 13D | Ownership over 5% (active) | Jan 6, 2023 | — |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 144 | Notice of proposed sale | Dec 1, 2022 | — |
Showing 100 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Finance Services (SIC 6199)
- Listed as
- ZSTK (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- TX
- Headquarters
- Dallas, TX
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1790169
- Former names
- Flora Growth Corp. (until Jan 27, 2026)
Other Finance Services companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.