$IMCR

$31.96 +$0.68 (2.17%) Close

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

Ownership

13F as of Q2 2026 · 51.5M shares outstanding

Who owns IMCR?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 57.5%

Wellington Management Group LLP 11.1% · RTW Investments, LP 9.5%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

132

-10 vs last qtr

Net shares bought

−387.0K

by institutions in Q2 2026

New / sold out

24 / 34

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Caligan Partners LP NEW +1.4M
Wellington Management Group LLP +1.0M

Biggest sellers in Q2 2026

T. Rowe Price Investment Management, Inc. SOLD OUT −1.9M
Deep Track Capital, LP −1.6M

Who is planning to sell?

Notices of proposed sale, last 12 months

$11.1M

8 notices from 4 people

Shares covered

326.3K

0.63% of the company

Arranged in advance

49%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

David M. Berman Officer 10b5-1 $5.38M
David Berman Affiliate $5.31M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2021–FY2025

+18.5%

+4.33% a year

Each share's claim on the business

−15.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $186M

over 5 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years37% 3–5 years13% 1–3 years33% Under 1 year18%

Quarterly turnover

20.5%

of institutional shares changed hands

Top 10 managers, median time held

4.3 years

Super Investors

Investment managers reporting IMCR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
WM Wellington Management Group LLP	5.7M	11.11%	+1.0M (+21.6%)	≤2021	0.0%
Shares held by quarter Peak holding7.0M (Q3'24) Change over 8 quarters−1.3M Share of the company11.110% Wellington Management Group LLP's full portfolio →
RI RTW Investments, LP	4.9M	9.46%	Unchanged	≤2021	1.3%
Shares held by quarter Peak holding4.9M (Q3'24) Change over 8 quarters0 Share of the company9.460% RTW Investments, LP's full portfolio →

Wellington Management Group LLP

5.7M

% of company

11.11%

Change vs last qtr

+1.0M (+21.6%)

Held since

≤2021

RTW Investments, LP

4.9M

% of company

9.46%

Change vs last qtr

Unchanged

Held since

≤2021

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting IMCR on Form N-PORT; together they hold 14.9% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
PO PRIMECAP Odyssey Aggressive Growth Fund PRIMECAP Odyssey Funds	$37.6M	1.1M	2.16%	0.51%	July 31, 2026
FG Fidelity Growth Company Fund Fidelity Mt. Vernon Street Trust	$23.1M	635.9K	1.23%	0.02%	August 31, 2026

PRIMECAP Odyssey Aggressive Growth Fund

PRIMECAP Odyssey Funds

Position value

$37.6M

% of company

2.16%

% of the fund

0.51%

As of

July 31, 2026

Fidelity Growth Company Fund

Fidelity Mt. Vernon Street Trust

Position value

$23.1M

% of company

1.23%

% of the fund

0.02%

As of

August 31, 2026

23 more funds behind a free account

See every fund holding Immunocore Holdings PLC and how much of the fund the position is.

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