Hugh Griffith - 20 Jun 2025 SCHEDULE 13D Report for NuCana plc Ordinary Shares, nominal value 0.0004 Pounds Sterling per share (NCNA)

Filing Manager: Hugh Griffith
Reporting Manager: Hugh S. Griffith
Security: NuCana plc Ordinary Shares, nominal value 0.0004 Pounds Sterling per share
Symbol: NCNA
Shares outstanding: 23,583,015,750 shares
Disclosed Ownership: 2,829,961,890 shares
Ownership: 12%
Form type: SCHEDULE 13D
Filing time: 18 Mar 2026, 18:39:36 UTC
Date of event: 20 Jun 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Hugh S. Griffith	12%	2,829,961,890	2,829,961,890	0	/s/ Hugh S. Griffith	Hugh S. Griffith	0001296964