ADC Therapeutics SA SEC filings ADCT
ADC Therapeutics SA has 438 filings in SEC EDGAR's recent list, going back to Jun 27, 2019. Its latest annual report, Form ARS, was filed on Mar 10, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations, regulation fd disclosure, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 29, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 27, 2026 | — |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 6, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Feb 18, 2026 | Feb 13, 2026 |
| 4 | Insider transaction | Feb 18, 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 | 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 | Dec 9, 2025 | Dec 6, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 6, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 6, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 6, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 6, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2025 | — |
| 4 | Insider transaction | Oct 28, 2025 | Oct 27, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 17, 2025 | — |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 13, 2025 | Jun 11, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 3 | Initial insider ownership | Jun 5, 2025 | Jun 3, 2025 |
| 3/A | Form 3/a | Jun 5, 2025 | Jan 2, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 19, 2025 | — |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 8, 2025 | May 6, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| 4 | Insider transaction | Feb 14, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 13, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 3, 2025 | — |
| 4 | Insider transaction | Dec 13, 2024 | Dec 11, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 6, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 6, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 6, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 6, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 6, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 13, 2024 | — |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 144 | Notice of proposed sale | Jun 18, 2024 | — |
| 144 | Notice of proposed sale | Jun 18, 2024 | — |
| 144 | Notice of proposed sale | Jun 18, 2024 | — |
| 144 | Notice of proposed sale | Jun 18, 2024 | — |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 3 | Initial insider ownership | Jun 6, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jun 6, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 8, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 144 | Notice of proposed sale | May 7, 2024 | — |
| SC 13G | Ownership over 5% (passive) | May 3, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 25, 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 12, 2024 | — |
| 4 | Insider transaction | Feb 9, 2024 | Jan 3, 2024 |
| 3 | Initial insider ownership | Feb 9, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 2, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 28, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Apr 17, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 10, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 6, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 23, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 9, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 8, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 12, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Dec 10, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 13, 2020 | — |
| SC 13D | Ownership over 5% (active) | Sep 14, 2020 | — |
| SC 13D | Ownership over 5% (active) | May 29, 2020 | — |
Showing 138 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- ADCT (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- Switzerland
- Headquarters
- Epalinges, Switzerland
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1771910
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.