Lexeo Therapeutics, Inc. SEC filings LXEO
Lexeo Therapeutics, Inc. has 361 filings in SEC EDGAR's recent list, going back to Feb 4, 2022. 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 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 29, 2026 (acquisition or sale of assets, unregistered share sale). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 13, 2026 | — |
| 4 | Insider transaction | Sep 28, 2026 | Sep 24, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 24, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 24, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 24, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 18, 2026 |
| 144 | Notice of proposed sale | Aug 18, 2026 | — |
| 144 | Notice of proposed sale | Aug 18, 2026 | — |
| 144 | Notice of proposed sale | Aug 18, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 7, 2026 | — |
| 4 | Insider transaction | Jul 1, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 29, 2026 |
| 144 | Notice of proposed sale | Jul 1, 2026 | — |
| 144 | Notice of proposed sale | Jul 1, 2026 | — |
| 144 | Notice of proposed sale | Jul 1, 2026 | — |
| 144 | Notice of proposed sale | Jul 1, 2026 | — |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 144 | Notice of proposed sale | May 18, 2026 | — |
| 144 | Notice of proposed sale | May 18, 2026 | — |
| 144 | Notice of proposed sale | May 18, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 4 | Insider transaction | Apr 30, 2026 | Apr 28, 2026 |
| 3 | Initial insider ownership | Apr 30, 2026 | Apr 28, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 13, 2026 | — |
| 4 | Insider transaction | Apr 7, 2026 | Apr 6, 2026 |
| 144 | Notice of proposed sale | Apr 6, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 17, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 13, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4/A | Filing | Feb 20, 2026 | Nov 18, 2025 |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| 4 | Insider transaction | Feb 17, 2026 | Feb 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 4 | Insider transaction | Feb 6, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 4, 2026 |
| 3 | Initial insider ownership | Feb 5, 2026 | Jan 20, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 29, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 21, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 8, 2025 | — |
| 4 | Insider transaction | Nov 20, 2025 | Nov 18, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 18, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 18, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 18, 2025 |
| 4 | Insider transaction | Nov 20, 2025 | Nov 18, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 20, 2025 | — |
| 144 | Notice of proposed sale | Nov 18, 2025 | — |
| 144 | Notice of proposed sale | Nov 18, 2025 | — |
| 144 | Notice of proposed sale | Nov 18, 2025 | — |
| 144 | Notice of proposed sale | Nov 18, 2025 | — |
| 144 | Notice of proposed sale | Nov 18, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 7, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 27, 2025 | — |
| 4 | Insider transaction | Oct 17, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Oct 17, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Oct 17, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Oct 17, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Oct 17, 2025 | Oct 15, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 17, 2025 | — |
| 144 | Notice of proposed sale | Oct 17, 2025 | — |
| 144 | Notice of proposed sale | Oct 17, 2025 | — |
| 144 | Notice of proposed sale | Oct 17, 2025 | — |
| 144 | Notice of proposed sale | Oct 17, 2025 | — |
| 144 | Notice of proposed sale | Oct 17, 2025 | — |
| 4 | Insider transaction | Sep 16, 2025 | Sep 12, 2025 |
| 4/A | Filing | Sep 10, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Sep 3, 2025 | Aug 29, 2025 |
| 3 | Initial insider ownership | Aug 27, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 20, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 20, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 20, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 20, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 20, 2025 | Aug 18, 2025 |
| 144 | Notice of proposed sale | Aug 18, 2025 | — |
| 144 | Notice of proposed sale | Aug 18, 2025 | — |
| 144 | Notice of proposed sale | Aug 18, 2025 | — |
| 144 | Notice of proposed sale | Aug 18, 2025 | — |
| 144 | Notice of proposed sale | Aug 18, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 7, 2025 | — |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 4, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 4, 2025 | — |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 144 | Notice of proposed sale | May 16, 2025 | — |
| 144 | Notice of proposed sale | May 16, 2025 | — |
| 144 | Notice of proposed sale | May 16, 2025 | — |
| 144 | Notice of proposed sale | May 16, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 28, 2025 | — |
| 4 | Insider transaction | Apr 9, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Apr 9, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Apr 9, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 14, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 144 | Notice of proposed sale | Feb 19, 2025 | — |
| 144 | Notice of proposed sale | Feb 19, 2025 | — |
| 144 | Notice of proposed sale | Feb 19, 2025 | — |
| 144 | Notice of proposed sale | Feb 19, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 4, 2025 | — |
| 4 | Insider transaction | Jan 22, 2025 | Jan 17, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 7, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 7, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 7, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 7, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 7, 2025 |
| 3 | Initial insider ownership | Dec 27, 2024 | Dec 18, 2024 |
| 4 | Insider transaction | Dec 12, 2024 | Dec 10, 2024 |
| 144 | Notice of proposed sale | Dec 10, 2024 | — |
| 4 | Insider transaction | Nov 26, 2024 | Nov 25, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 13, 2024 | Nov 11, 2024 |
| 4 | Insider transaction | Nov 13, 2024 | Nov 11, 2024 |
| 3 | Initial insider ownership | Nov 13, 2024 | Nov 11, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 12, 2024 | — |
| 4 | Insider transaction | Oct 15, 2024 | Oct 10, 2024 |
| 4 | Insider transaction | Sep 11, 2024 | Sep 10, 2024 |
| 144 | Notice of proposed sale | Sep 10, 2024 | — |
| 4 | Insider transaction | Aug 13, 2024 | Aug 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 5, 2024 | — |
| 4 | Insider transaction | Jul 12, 2024 | Jul 10, 2024 |
| 4 | Insider transaction | Jul 8, 2024 | Jul 5, 2024 |
| 3 | Initial insider ownership | Jul 8, 2024 | Jul 5, 2024 |
| 4 | Insider transaction | Jun 27, 2024 | Jun 25, 2024 |
| 4 | Insider transaction | Jun 27, 2024 | Jun 25, 2024 |
| 4 | Insider transaction | Jun 27, 2024 | Jun 25, 2024 |
| 4 | Insider transaction | Jun 27, 2024 | Jun 25, 2024 |
| 4 | Insider transaction | Jun 27, 2024 | Jun 25, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Jun 12, 2024 | Jun 10, 2024 |
| 3 | Initial insider ownership | May 22, 2024 | May 20, 2024 |
| 4 | Insider transaction | May 14, 2024 | May 13, 2024 |
| 144 | Notice of proposed sale | May 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| 3 | Initial insider ownership | Feb 6, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Feb 6, 2024 | Feb 2, 2024 |
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
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- LXEO (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- New York, NY
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1907108
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.