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NCNA · NASDAQ · Biotechnology

NuCana (ADR) (NCNA)

Develops ProTide oncology candidates that redesign nucleoside agents for cancer cells.

$1.38

Pre-market−0.03 (−2.09%)

At close$1.41(+1.81%)

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Breakdown13F · 13D/G · Form 4

	Insiders4 holders · as of Apr 1, 2026	0.69%	41.9K ADS
	Otherremainder	99.31%	6.03M ADS

6.07M ADS (1 ADS = 25 ordinary shares) as of Aug 21, 2026 · holders as of their latest filing

The share count is from the company's Dec 2024 annual report; nothing newer is on file here.

Top shareholders13F · 13D/G · Form 4

Holder	Stake	Shares	Evidence
Hugh GriffithInsiderdirector, officer: Chief Executive Officer	0.66%	1.00M ordinary	Form 4filed Mar 18, 2026 ↗
Jeffrey D. BlossInsiderofficer: Chief Medical Officer	0.03%	47,136 ordinary	Form 4filed Mar 19, 2026 ↗
Martin C.B. MellishInsiderdirector	0.00%	28 ordinary	Form 4filed Mar 20, 2026 ↗
Elliott M. LevyInsiderdirector	0.00%	13 ordinary	Form 4filed Apr 1, 2026 ↗
Baillie Gifford & Co (Scottish partnership)Institution	—11.00% of class, as filed	—	13D/Gfiled Jan 28, 2021 ↗
Capital International InvestorsInstitution	—8.10% of class, as filed	—	13D/Gfiled Feb 14, 2020 ↗
Christopher WoodInsider	—5.95% of class, as filed	—	13Gfiled Jul 13, 2018 ↗
Dr. James I. HealyInsider	—15.30% of class, as filed	—	13Dfiled Oct 11, 2017 ↗
Harvard Management Company, Inc.Institution	—3.30% of class, as filed	—	13G/Afiled Feb 12, 2021 ↗
SMALLCAP World Fund, Inc.Institution	—6.20% of class, as filed	—	13D/Gfiled Feb 14, 2018 ↗
Scottish EnterpriseInsider	—7.06% of class, as filed	—	13Gfiled Feb 15, 2018 ↗
Sofinnova Capital VI FCPRStrategic	—5.10% of class, as filed	—	13Dfiled Feb 14, 2025 ↗
The Carlyle Group Inc.Strategic	—6.40% of class, as filed	—	13D/Afiled Aug 11, 2022 ↗
Woodford Investment Management LtdInstitution	—5.80% of class, as filed	—	13Gfiled Feb 14, 2019 ↗

13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F

No 13F holders on record.

Ownership statements13D/G · 5% or more, as filed

Holder	% of class	Shares	Form	Filed
Hugh S. Griffith	12.00%		13D	Mar 18, 2026 ↗
Sofinnova Capital VI FCPRincl. Anta Gkelou, Karl Naegler +5 more	5.10%		13D	Feb 14, 2025 ↗

NuCana (ADR) (NCNA)

Breakdown13F · 13D/G · Form 4

Top shareholders13F · 13D/G · Form 4

Institutions13F

Ownership statements13D/G · 5% or more, as filed

Insider tradesForm 4

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