$NCNA

$1.10 +$0.06 (5.77%) Close

$NCNA Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 20.81B shares outstanding

Who owns NCNA?

By type of holder

Institutions 0.0% Insiders 0.0% Everyone else 100.0%

Concentration Top 10 holders own 13.8%

Hugh S. Griffith 13.6% · Graziano Seghezzi 0.0%

Institutional ownership

0.0%

0.0 pts vs last qtr

Institutional holders

+2 vs last qtr

Net shares bought

+54.4K

by institutions in Q2 2026

New / sold out

4 / 2

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

StoneX Group Inc. NEW +47.0K
HRT Financial LP NEW +16.9K

Biggest sellers in Q2 2026

Virtu Financial LLC SOLD OUT −13.4K
Jane Street Group, LLC SOLD OUT −10.5K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for NuCana PLC in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for NuCana PLC.

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years18% Under 1 year82%

Quarterly turnover

90.5%

of institutional shares changed hands

Top 10 managers, median time held

1 quarter

Super Investors

Investment managers reporting NCNA on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
SG StoneX Group Inc.	47.0K	0.00%	NEW	Q2 '26	0.0%
Shares held by quarter Peak holding47.0K (Q2'26) Change over 8 quarters+47.0K Share of the company0.000% StoneX Group Inc.'s full portfolio →
CA Citadel Advisors LLC	27.1K	0.00%	+13.2K (+95.6%)	Q1 '26	0.0%
Shares held by quarter Peak holding27.1K (Q2'26) Change over 8 quarters+27.1K Share of the company0.000% Citadel Advisors LLC's full portfolio →

StoneX Group Inc.

47.0K

% of company

0.00%

Change vs last qtr

NEW

Held since

Q2 '26

Citadel Advisors LLC

27.1K

% of company

0.00%

Change vs last qtr

+13.2K (+95.6%)

Held since

Q1 '26

10 more super investors behind a free account

See every manager holding NuCana PLC, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting NCNA on Form N-PORT; together they hold 0.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
BA Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds	$-412	—	0.00%	0.00%	June 30, 2026

Blackstone Alternative Multi-Strategy Fund

Blackstone Alternative Investment Funds

Position value

$-412

% of company

0.00%

% of the fund

0.00%

As of

June 30, 2026

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
HS Hugh S. Griffith 5%+ holder 13D · 12.0%	2.83B	13.60%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company13.600% Disclosed stake13D · 12.0% View the 13D/G filing →
GS Graziano Seghezzi 5%+ holder 13D · 5.1%	5.0M	0.02%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company0.020% Disclosed stake13D · 5.1% View the 13D/G filing →

Hugh S. Griffith

5%+ holder13D · 12.0%

2.83B

% of company

13.60%

Change vs last qtr

—

Held since

—

Graziano Seghezzi

5%+ holder13D · 5.1%

5.0M

% of company

0.02%

Change vs last qtr

—

Held since

—

15 more holders behind a free account

See every insider and 5%+ holder of NuCana PLC.

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