Silence Therapeutics plc SEC filings SLNCF
Silence Therapeutics plc has 275 filings in SEC EDGAR's recent list, going back to Jan 5, 2010. Its latest annual report, Form ARS, was filed on Apr 29, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 19, 2026 (material agreement, regulation fd disclosure).
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 5, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 13, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| 4 | Insider transaction | Aug 13, 2026 | Aug 10, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 8, 2026 | — |
| 4 | Insider transaction | Jul 7, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Feb 13, 2026 | Aug 3, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 9, 2026 | — |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 18, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 22, 2025 |
| 3 | Initial insider ownership | Dec 22, 2025 | Dec 14, 2025 |
| 4 | Insider transaction | Aug 4, 2025 | Jul 31, 2025 |
| 4 | Insider transaction | Jul 31, 2025 | Jul 29, 2025 |
| 4 | Insider transaction | Jul 23, 2025 | Jul 21, 2025 |
| 4 | Insider transaction | Jul 16, 2025 | Jul 11, 2025 |
| 4 | Insider transaction | Jul 10, 2025 | Jul 7, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 25, 2025 | — |
| 4 | Insider transaction | Jun 25, 2025 | Jun 22, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 13, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | May 29, 2025 | May 26, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 18, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 5, 2025 |
| 3 | Initial insider ownership | May 20, 2025 | May 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 8, 2025 | — |
| 4 | Insider transaction | May 8, 2025 | May 5, 2025 |
| 4 | Insider transaction | May 2, 2025 | Apr 30, 2025 |
| 4 | Insider transaction | Apr 30, 2025 | Apr 28, 2025 |
| 4 | Insider transaction | Apr 28, 2025 | Apr 24, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 24, 2025 | — |
| 4 | Insider transaction | Apr 24, 2025 | Apr 22, 2025 |
| 4 | Insider transaction | Apr 22, 2025 | Apr 17, 2025 |
| 4 | Insider transaction | Apr 15, 2025 | Apr 10, 2025 |
| 4 | Insider transaction | Apr 1, 2025 | Mar 31, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 31, 2025 | — |
| 4 | Insider transaction | Mar 31, 2025 | Mar 27, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Jan 8, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 11, 2025 | — |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 4 | Insider transaction | Jan 6, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| 3 | Initial insider ownership | Jan 2, 2025 | Jan 2, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 20, 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 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 2, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 27, 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 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Sep 1, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 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 8, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 20, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Aug 22, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Aug 19, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 20, 2022 | — |
| SC 13D | Ownership over 5% (active) | Jun 15, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 7, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jan 27, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 17, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 17, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 17, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 8, 2017 | — |
| SC 13D | Ownership over 5% (active) | Dec 1, 2017 | — |
| SC 13D | Ownership over 5% (active) | Jan 13, 2017 | — |
Showing 98 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
- SLN (Nasdaq), SLNCF (OTC)
- Incorporated in
- United Kingdom
- Headquarters
- London
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1479615
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.