NuCana plc SEC filings NCNA
NuCana plc has 282 filings in SEC EDGAR's recent list, going back to Jun 26, 2017. Its latest annual report, Form 20-F, was filed on Mar 19, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Sep 30, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Jun 24, 2026 | Jun 19, 2026 |
| 4 | Insider transaction | Jun 23, 2026 | Jun 19, 2026 |
| 4 | Insider transaction | Apr 16, 2026 | Apr 15, 2026 |
| 3 | Initial insider ownership | Apr 1, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 24, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 20, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 19, 2026 | Mar 18, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 18, 2026 | — |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 18, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 25, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 14, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 4, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 27, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 11, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 28, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 27, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 15, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 8, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 26, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 2, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Jan 28, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 28, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 5, 2020 | — |
| SC 13D | Ownership over 5% (active) | Sep 28, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 11, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 10, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 12, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 16, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 9, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | May 24, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 15, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 22, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 14, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Jul 13, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Jul 13, 2018 | — |
| SC 13D | Ownership over 5% (active) | Feb 21, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 15, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2018 | — |
| SC 13D | Ownership over 5% (active) | Oct 11, 2017 | — |
Showing 69 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
- NCNA (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- United Kingdom
- Headquarters
- Edinburgh, United Kingdom
- SEC filer status
- Non-accelerated filer
- SEC CIK
- 1709626
- Former names
- NuCana BioMed Ltd (until Aug 4, 2017)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.