Zentalis Pharmaceuticals, Inc. SEC filings ZNTL
Zentalis Pharmaceuticals, Inc. has 546 filings in SEC EDGAR's recent list, going back to Dec 19, 2017. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 14, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 27, 2026 | — |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 19, 2026 | — |
| 4 | Insider transaction | Aug 19, 2026 | Aug 14, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 30, 2026 | — |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 16, 2026 |
| 4 | Insider transaction | May 27, 2026 | May 26, 2026 |
| 3 | Initial insider ownership | May 27, 2026 | May 22, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 3, 2026 | — |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 10, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 2, 2026 |
| 4 | Insider transaction | Jan 9, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 9, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 9, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 9, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 8, 2026 | Dec 31, 2025 |
| 3 | Initial insider ownership | Jan 8, 2026 | Dec 15, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 5, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 2, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 30, 2025 | — |
| 4 | Insider transaction | Dec 15, 2025 | Dec 15, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 14, 2025 | — |
| 4 | Insider transaction | Oct 1, 2025 | Oct 1, 2025 |
| 3 | Initial insider ownership | Sep 22, 2025 | Sep 18, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 16, 2025 | — |
| 4 | Insider transaction | Jun 18, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 17, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 13, 2025 | — |
| 4 | Insider transaction | Apr 30, 2025 | Apr 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Feb 12, 2025 | Feb 6, 2025 |
| 144 | Notice of proposed sale | Feb 11, 2025 | — |
| 4 | Insider transaction | Feb 5, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 4, 2025 | — |
| 144 | Notice of proposed sale | Feb 3, 2025 | — |
| 144 | Notice of proposed sale | Feb 3, 2025 | — |
| 144 | Notice of proposed sale | Feb 3, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 31, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 31, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 22, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 8, 2025 | — |
| 4 | Insider transaction | Jan 3, 2025 | Jan 2, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 10, 2024 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 6, 2024 | — |
| 4 | Insider transaction | Dec 3, 2024 | Dec 2, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Dec 2, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 13, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 13, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 13, 2024 | Nov 13, 2024 |
| 3 | Initial insider ownership | Nov 13, 2024 | Nov 13, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 6, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 144 | Notice of proposed sale | Oct 31, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 18, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 7, 2024 | — |
| 4 | Insider transaction | Oct 4, 2024 | Oct 4, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 21, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 21, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 21, 2024 |
| 144 | Notice of proposed sale | May 31, 2024 | — |
| 4 | Insider transaction | May 31, 2024 | May 31, 2024 |
| 4 | Insider transaction | May 29, 2024 | May 24, 2024 |
| 3 | Initial insider ownership | May 29, 2024 | May 24, 2024 |
| 144 | Notice of proposed sale | May 9, 2024 | — |
| 4 | Insider transaction | May 9, 2024 | May 9, 2024 |
| 3 | Initial insider ownership | Apr 11, 2024 | Apr 5, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| 144 | Notice of proposed sale | Feb 12, 2024 | — |
| 144 | Notice of proposed sale | Feb 12, 2024 | — |
| 144 | Notice of proposed sale | Feb 12, 2024 | — |
| 4 | Insider transaction | Feb 12, 2024 | Feb 12, 2024 |
| 4 | Insider transaction | Feb 12, 2024 | Feb 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| 144 | Notice of proposed sale | Feb 2, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| 4 | Insider transaction | Jan 3, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 3, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Dec 21, 2023 | Dec 20, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 11, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Nov 17, 2023 | — |
| 4 | Insider transaction | Nov 13, 2023 | Nov 10, 2023 |
| 4 | Insider transaction | Nov 13, 2023 | Nov 13, 2023 |
| SC 13G | Ownership over 5% (passive) | Oct 10, 2023 | — |
| 4 | Insider transaction | Oct 6, 2023 | Oct 4, 2023 |
| 4 | Insider transaction | Oct 6, 2023 | Oct 4, 2023 |
| 4 | Insider transaction | Oct 6, 2023 | Oct 4, 2023 |
| 144 | Notice of proposed sale | Oct 4, 2023 | — |
| 144 | Notice of proposed sale | Oct 4, 2023 | — |
| 144 | Notice of proposed sale | Oct 4, 2023 | — |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 144 | Notice of proposed sale | Sep 11, 2023 | — |
| 4 | Insider transaction | Jun 20, 2023 | Jun 20, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 20, 2023 | — |
| 4 | Insider transaction | Jun 16, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 16, 2023 |
| 144 | Notice of proposed sale | May 31, 2023 | — |
| 4 | Insider transaction | May 31, 2023 | May 31, 2023 |
| 4 | Insider transaction | May 31, 2023 | May 26, 2023 |
| 144 | Notice of proposed sale | May 31, 2023 | — |
| 4 | Insider transaction | May 10, 2023 | May 8, 2023 |
| 3 | Initial insider ownership | May 10, 2023 | May 8, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 10, 2023 | — |
| 4 | Insider transaction | Mar 2, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Feb 14, 2023 | Feb 13, 2023 |
| 4 | Insider transaction | Feb 14, 2023 | Feb 13, 2023 |
| 4 | Insider transaction | Feb 14, 2023 | Feb 13, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2023 | — |
| 3 | Initial insider ownership | Feb 13, 2023 | Feb 13, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 7, 2023 | — |
| 4 | Insider transaction | Feb 6, 2023 | Feb 6, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 6, 2023 | — |
| 4 | Insider transaction | Feb 1, 2023 | Feb 1, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Feb 1, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Feb 1, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Feb 1, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Feb 1, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Feb 1, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2023 | — |
| 4 | Insider transaction | Jan 18, 2023 | Jan 17, 2023 |
| 4 | Insider transaction | Jan 5, 2023 | Jan 5, 2023 |
| 4 | Insider transaction | Nov 15, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 8, 2022 | Nov 7, 2022 |
| 4 | Insider transaction | Oct 17, 2022 | Oct 17, 2022 |
| 4 | Insider transaction | Oct 7, 2022 | Oct 5, 2022 |
| 4 | Insider transaction | Oct 3, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 3, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Oct 3, 2022 | Oct 3, 2022 |
| 3 | Initial insider ownership | Oct 3, 2022 | Oct 3, 2022 |
| 4 | Insider transaction | Sep 16, 2022 | Sep 15, 2022 |
| 4 | Insider transaction | Sep 12, 2022 | Sep 9, 2022 |
| 3 | Initial insider ownership | Sep 12, 2022 | Sep 9, 2022 |
| 4 | Insider transaction | Aug 12, 2022 | Aug 10, 2022 |
| 4 | Insider transaction | Aug 1, 2022 | Aug 1, 2022 |
| 3 | Initial insider ownership | Aug 1, 2022 | Aug 1, 2022 |
| 4 | Insider transaction | Jul 20, 2022 | Jul 20, 2022 |
| 4 | Insider transaction | Jul 14, 2022 | Jul 13, 2022 |
| 4 | Insider transaction | Jul 6, 2022 | Jul 5, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 4 | Insider transaction | Jun 10, 2022 | Jun 8, 2022 |
| 3 | Initial insider ownership | Jun 3, 2022 | May 18, 2022 |
| SC 13D | Ownership over 5% (active) | Jun 3, 2022 | — |
| 4 | Insider transaction | May 31, 2022 | May 30, 2022 |
| 4 | Insider transaction | May 20, 2022 | May 16, 2022 |
| 4 | Insider transaction | Apr 13, 2022 | Apr 11, 2022 |
| 4 | Insider transaction | Apr 5, 2022 | Apr 4, 2022 |
| 4 | Insider transaction | Apr 5, 2022 | Apr 4, 2022 |
| 4 | Insider transaction | Apr 5, 2022 | Apr 5, 2022 |
| 4 | Insider transaction | Mar 21, 2022 | Mar 21, 2022 |
| 4 | Insider transaction | Mar 16, 2022 | Mar 15, 2022 |
| 4 | Insider transaction | Mar 10, 2022 | Mar 10, 2022 |
| 4 | Insider transaction | Mar 8, 2022 | Mar 7, 2022 |
| 4 | Insider transaction | Mar 3, 2022 | Mar 1, 2022 |
| 4 | Insider transaction | Feb 23, 2022 | Feb 22, 2022 |
| 4 | Insider transaction | Feb 23, 2022 | Feb 23, 2022 |
| 4 | Insider transaction | Feb 15, 2022 | Feb 15, 2022 |
| 4 | Insider transaction | Feb 14, 2022 | Feb 10, 2022 |
Showing 200 filings, the most recent 200. 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- ZNTL (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- San Diego, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1725160
- Former names
- Zentalis Pharmaceuticals, LLC (until Apr 6, 2020); Zeno Pharma, LLC (until Sep 5, 2019)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.