Immunocore Holdings plc SEC filings IMCR
Immunocore Holdings plc has 279 filings in SEC EDGAR's recent list, going back to Apr 13, 2016. Its latest annual report, Form ARS, was filed on Apr 16, 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 Sep 14, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 7, 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/A | Amended ownership over 5% (passive) | Aug 6, 2026 | — |
| 4 | Insider transaction | May 28, 2026 | May 27, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 27, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 27, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 27, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 27, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 27, 2026 |
| 144 | Notice of proposed sale | May 22, 2026 | — |
| 144 | Notice of proposed sale | May 21, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 144 | Notice of proposed sale | Apr 8, 2026 | — |
| 144 | Notice of proposed sale | Mar 11, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 6, 2026 | — |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 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 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Nov 26, 2025 | Nov 24, 2025 |
| 144 | Notice of proposed sale | Nov 24, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 24, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 3, 2025 | — |
| 4 | Insider transaction | Oct 2, 2025 | Sep 30, 2025 |
| 4 | Insider transaction | Sep 16, 2025 | Sep 12, 2025 |
| 4 | Insider transaction | Sep 12, 2025 | Sep 10, 2025 |
| 144 | Notice of proposed sale | Sep 10, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 5, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 5, 2025 | — |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| 144 | Notice of proposed sale | Mar 17, 2025 | — |
| 144 | Notice of proposed sale | Mar 14, 2025 | — |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 3 | Initial insider ownership | Feb 27, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 17, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 17, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 17, 2025 |
| 4 | Insider transaction | Feb 19, 2025 | Feb 17, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 13, 2025 | — |
| 4 | Insider transaction | Jan 3, 2025 | Jan 1, 2025 |
| 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 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Sep 10, 2024 | — |
| 4 | Insider transaction | May 29, 2024 | May 28, 2024 |
| 3 | Initial insider ownership | May 29, 2024 | May 28, 2024 |
| 3 | Initial insider ownership | May 29, 2024 | May 28, 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 | Apr 3, 2024 | Apr 1, 2024 |
| 144 | Notice of proposed sale | Apr 1, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Mar 11, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 7, 2024 | — |
| 4 | Insider transaction | Mar 1, 2024 | Feb 28, 2024 |
| 4 | Insider transaction | Feb 28, 2024 | Feb 26, 2024 |
| 144 | Notice of proposed sale | Feb 26, 2024 | — |
| 4 | Insider transaction | Feb 21, 2024 | Feb 16, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Feb 16, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Feb 16, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Feb 16, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Feb 16, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 8, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 1, 2024 | — |
| 4 | Insider transaction | Jan 5, 2024 | Jan 3, 2024 |
| 144 | Notice of proposed sale | Jan 3, 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 |
| 144 | Notice of proposed sale | Dec 27, 2023 | — |
| 144 | Notice of proposed sale | Dec 20, 2023 | — |
| 144 | Notice of proposed sale | Nov 30, 2023 | — |
| 144 | Notice of proposed sale | Nov 16, 2023 | — |
| 144 | Notice of proposed sale | Nov 6, 2023 | — |
| 144 | Notice of proposed sale | Oct 2, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Sep 18, 2023 | — |
| 144 | Notice of proposed sale | Aug 25, 2023 | — |
| 144 | Notice of proposed sale | Aug 17, 2023 | — |
| 144 | Notice of proposed sale | Jul 12, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 15, 2023 | — |
| 144 | Notice of proposed sale | Jun 5, 2023 | — |
| 144 | Notice of proposed sale | May 8, 2023 | — |
| 144 | Notice of proposed sale | Apr 19, 2023 | — |
| 144 | Notice of proposed sale | Apr 17, 2023 | — |
| 144 | Notice of proposed sale | Apr 17, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 17, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 4, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 20, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 7, 2022 | — |
| SC 13D | Ownership over 5% (active) | Jul 21, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 20, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Mar 17, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 18, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 15, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Oct 15, 2021 | — |
| SC 13D | Ownership over 5% (active) | May 20, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Apr 19, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Apr 13, 2016 | — |
Showing 141 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- IMCR (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- United Kingdom
- Headquarters
- Oxfordshire, United Kingdom
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1671927
- Former names
- Immunocore Ltd (until Feb 1, 2021)
Other Biological Products, (No Diagnostic Substances) companies
- Amgen Inc AMGN
- Gilead Sciences, Inc. GILD
- Moderna, Inc. MRNA
- Argenx SE ARGX
- Revolution Medicines, Inc. RVMD
- Biogen Inc. BIIB
- BioNTech SE BNTX
- Exelixis, Inc. EXEL
All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.