Dianthus Therapeutics, Inc. /DE/ SEC filings DNTH
Dianthus Therapeutics, Inc. /DE/ has 658 filings in SEC EDGAR's recent list, going back to Nov 23, 2016. Its latest annual report, Form ARS, was filed on Apr 9, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 30, 2026 | — |
| 4 | Insider transaction | Sep 18, 2026 | Sep 17, 2026 |
| 144 | Notice of proposed sale | Sep 17, 2026 | — |
| 4 | Insider transaction | Sep 3, 2026 | Sep 1, 2026 |
| 144 | Notice of proposed sale | Sep 1, 2026 | — |
| 4 | Insider transaction | Aug 19, 2026 | Aug 19, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 13, 2026 | — |
| 4 | Insider transaction | Aug 11, 2026 | Aug 10, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 10, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 7, 2026 |
| 144 | Notice of proposed sale | Aug 10, 2026 | — |
| 144 | Notice of proposed sale | Aug 10, 2026 | — |
| 144 | Notice of proposed sale | Aug 10, 2026 | — |
| 4 | Insider transaction | Aug 7, 2026 | Aug 7, 2026 |
| 144 | Notice of proposed sale | Aug 7, 2026 | — |
| 144 | Notice of proposed sale | Aug 7, 2026 | — |
| 144 | Notice of proposed sale | Aug 7, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 7, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 7, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 28, 2026 | — |
| 4 | Insider transaction | Jul 13, 2026 | Jul 9, 2026 |
| 144 | Notice of proposed sale | Jul 9, 2026 | — |
| 4 | Insider transaction | Jun 18, 2026 | Jun 17, 2026 |
| 144 | Notice of proposed sale | Jun 17, 2026 | — |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| 4 | Insider transaction | May 11, 2026 | May 8, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 27, 2026 | — |
| 4 | Insider transaction | Apr 10, 2026 | Apr 9, 2026 |
| 144 | Notice of proposed sale | Apr 9, 2026 | — |
| 4 | Insider transaction | Apr 1, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 1, 2026 | Mar 31, 2026 |
| 144 | Notice of proposed sale | Mar 31, 2026 | — |
| 144 | Notice of proposed sale | Mar 31, 2026 | — |
| 4 | Insider transaction | Mar 26, 2026 | Mar 24, 2026 |
| 144 | Notice of proposed sale | Mar 24, 2026 | — |
| 4 | Insider transaction | Mar 17, 2026 | Mar 16, 2026 |
| 4 | Insider transaction | Mar 13, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 13, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 13, 2026 | Mar 12, 2026 |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Dec 5, 2025 | Dec 4, 2025 |
| 144 | Notice of proposed sale | Dec 4, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 25, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 19, 2025 | — |
| 4 | Insider transaction | Nov 14, 2025 | Nov 13, 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 14, 2025 | — |
| 144 | Notice of proposed sale | Nov 13, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2025 | — |
| 4 | Insider transaction | Oct 3, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Sep 25, 2025 | Sep 23, 2025 |
| 4 | Insider transaction | Sep 25, 2025 | Sep 23, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 12, 2025 | — |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 144 | Notice of proposed sale | Sep 9, 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/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 22, 2025 |
| 3 | Initial insider ownership | May 22, 2025 | May 22, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 17, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 24, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 19, 2025 | — |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 3 | Initial insider ownership | Mar 5, 2025 | Mar 4, 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 5, 2025 | — |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 3, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 22, 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 | Ownership over 5% (passive) | Nov 8, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Oct 24, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Oct 11, 2024 | — |
| 4 | Insider transaction | Oct 1, 2024 | Sep 27, 2024 |
| 4 | Insider transaction | Sep 18, 2024 | Sep 16, 2024 |
| 3 | Initial insider ownership | Sep 18, 2024 | Sep 16, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 12, 2024 | — |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 1, 2024 | — |
| 4 | Insider transaction | Apr 1, 2024 | Apr 1, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2024 | — |
| SC 13D | Ownership over 5% (active) | Jan 31, 2024 | — |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 26, 2024 | Jan 24, 2024 |
| 4 | Insider transaction | Jan 24, 2024 | Jan 22, 2024 |
| 4 | Insider transaction | Jan 24, 2024 | Jan 22, 2024 |
| 4 | Insider transaction | Jan 24, 2024 | Jan 22, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 24, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 13, 2023 | — |
| 4 | Insider transaction | Oct 3, 2023 | Sep 29, 2023 |
| 4 | Insider transaction | Sep 28, 2023 | Sep 26, 2023 |
| 4 | Insider transaction | Sep 25, 2023 | Sep 21, 2023 |
| SC 13D | Ownership over 5% (active) | Sep 21, 2023 | — |
| SC 13D | Ownership over 5% (active) | Sep 21, 2023 | — |
| 4 | Insider transaction | Sep 21, 2023 | Sep 19, 2023 |
| SC 13G | Ownership over 5% (passive) | Sep 21, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Sep 21, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Sep 15, 2023 | — |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 4 | Insider transaction | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| 3 | Initial insider ownership | Sep 13, 2023 | Sep 11, 2023 |
| SC 13G | Ownership over 5% (passive) | May 15, 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/A | Amended ownership over 5% (passive) | Feb 14, 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 13, 2023 | — |
| 4 | Insider transaction | Feb 9, 2023 | Feb 7, 2023 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 27, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Sep 26, 2022 | — |
| 4 | Insider transaction | Aug 17, 2022 | Aug 15, 2022 |
| 3 | Initial insider ownership | Aug 17, 2022 | Aug 15, 2022 |
| 4 | Insider transaction | Aug 1, 2022 | Aug 1, 2022 |
| 4 | Insider transaction | Aug 1, 2022 | Aug 1, 2022 |
| 4 | Insider transaction | Aug 1, 2022 | Aug 1, 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
- DNTH (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1690585
- Former names
- Magenta Therapeutics, Inc. (until Sep 8, 2023)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.