Form
SCHEDULE 13D
Active or control-oriented beneficial ownership filing.
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 owner
- Hugh S. Griffith
- Beneficially owned shares
- 2,829,961,890 shares
- Class ownership
- 12%
- Large-stake signal
-
Ownership
12%Beneficial ownership of this reported class.
Shares
2,829,961,890 sharesShares beneficially owned as disclosed.
Event date
20 Jun 2025Date tied to the ownership event or amendment.
Accepted by SEC
18 Mar 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Symbol
- NCNA
- Shares outstanding
- 23,583,015,750 shares
- Form type
- SCHEDULE 13D
- Accepted by SEC
- 18 Mar 2026, 18:39:36 UTC
- Event date
- 20 Jun 2025
- SEC filing
- View on sec.gov
Ownership signal
2 signals
Subject security
2 source fields
Source evidence
4 source fields
Key filing fact
Hugh Griffith disclosed 12% ownership in NuCana plc Ordinary Shares, nominal value 0.0004 Pounds Sterling per share (NCNA) on 20 Jun 2025.
Key facts
- Hugh Griffith filed SCHEDULE 13D for NuCana plc Ordinary Shares, nominal value 0.0004 Pounds Sterling per share (NCNA).
- Disclosed ownership: 12%.
- Date of event: 20 Jun 2025.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 18 Mar 2026, 18:39.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (1)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| 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 |
CIK / CUSIP context first