Company: NCNA
Filing Date: 2025-03-18
Form Type: 6-K
Source: 0001193125-25-056668
Chunk: 0

Company: NuCana plc
Filing Date: 2025-03-18
Form: 6-K
Chunk 0
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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2025

(Commission File No. 001-38215)

### NUCANA PLC
(Translation of registrant’s name into English)

3 Lochside Way

Edinburgh EH12 9DT

United Kingdom

(Address of registrant’s principal executive office)

Indicate by check mark whether
the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting
the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (7): ☐

Other Events On March 18, 2025, NuCana plc (the “Company”) distributed a notice of its general meeting to be held on April 7, 2025 (the “GM”) and a form of proxy to its ordinary shareholders. The notice of the GM, including the explanatory notes providing an explanation to the resolutions being put to shareholders, is attached as Exhibit 99.1 hereto. The purpose of the GM is for the Company’s ordinary shareholders to consider and vote upon, and if thought fit, pass and approve the following resolutions:

| 1. | As an ordinary resolution, that, in accordance with section 618 of the Companies Act 2006 (the “Act”)                                                                                                                                          
 and subject to the passing of Resolution 3 below, each of the 151,923,897 ordinary shares of £0.04 each in the issued share capital of the Company be and is sub-divided into and redesignated as (i) 1                                        
 ordinary share of £0.0004, having the same rights and being subject to the same restrictions (except as to nominal value) as the existing ordinary shares in the capital of the Company, as set out in the Company’s articles of association   
 from time to time and (ii) 99 deferred shares of £0.0004 each, having