Company: NCNA
Filing Date: 2025-03-18
Form Type: 6-K
Source: 0001193125-25-056668
Chunk: 3

Company: NuCana plc
Filing Date: 2025-03-18
Form: 6-K
Chunk 3
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 |     | Notice of Annual General Meeting |

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| NuCana plc |     |                         |
| By:        |     | /s/ Hugh S. Griffith    |
| Name:      |     | Hugh S. Griffith        |
| Title:     |     | Chief Executive Officer |

Date: March 18, 2025