Company · Ownership research

Immunocore Holdings plc IMCR

CIK 0001671927 · CUSIP 45258D105

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 45258D105 (IMCR), not CUSIP 45258D955 (IMCR), CUSIP 45258D905 (IMCR), and does not merge CUSIPs.

This page lists the top 20 of 135 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$181.67M 5,721,945 shares	0.03%	+1.02M(+21.60%)Added	SEC filing ↗ Aug 14, 2026	▾
02	RTW INVESTMENTS, LP CIK 1493215 · View history	$154.62M 4,869,798 shares	1.32%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
03	FMR LLC CIK 315066 · View history	$136.76M 4,307,246 shares	0.01%	-521.91K(-10.80%)Reduced	SEC filing ↗ Aug 13, 2026	▾
04	PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history	$115.51M 3,638,241 shares	0.07%	-55.00K(-1.50%)Reduced	SEC filing ↗ Aug 14, 2026	▾
05	Bellevue Group AG CIK 1674546 · View history	$88.53M 2,788,245 shares	1.86%	-8.56K(-0.30%)Reduced	SEC filing ↗ Aug 14, 2026	▾
06	TANG CAPITAL MANAGEMENT LLC CIK 1232621 · View history	$84.12M 2,649,368 shares	3.82%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
07	Vestal Point Capital, LP CIK 1974915 · View history	$57.15M 1,800,000 shares	1.34%	-966.87K(-34.90%)Reduced	SEC filing ↗ Aug 14, 2026	▾
08	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$52.36M 1,648,983 shares	0.04%	+627.72K(+61.50%)Added	SEC filing ↗ Aug 14, 2026	▾
09	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$50.71M 1,597,037 shares	0.03%	+359.63K(+29.10%)Added	SEC filing ↗ Aug 14, 2026	▾
10	ARMISTICE CAPITAL, LLC CIK 1601086 · View history	$45.34M 1,428,000 shares	1.25%	+240.00K(+20.20%)Added	SEC filing ↗ Aug 14, 2026	▾
11	Caligan Partners LP CIK 1727492 · View history	$43.86M 1,381,317 shares	2.12%	+1.38MNew	SEC filing ↗ Aug 14, 2026	▾
12	Kynam Capital Management, LP CIK 1907884 · View history	$43.66M 1,375,000 shares	2.41%	+490.06K(+55.40%)Added	SEC filing ↗ Aug 14, 2026	▾
13	BVF INC/IL CIK 1056807 · View history	$41.10M 1,294,463 shares	1.05%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
14	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$38.39M 1,209,894 shares	0.05%	+708.80K(+141.50%)Added	SEC filing ↗ Aug 13, 2026	▾
15	Trails Edge Capital Partners, LP CIK 2077247 · View history	$33.76M 1,063,234 shares	5.36%	+380.64K(+55.80%)Added	SEC filing ↗ Aug 14, 2026	▾
16	BlackRock, Inc. CIK 2012383 · View history	$31.90M 1,004,598 shares	0.00%	+348.29K(+53.10%)Added	SEC filing ↗ Aug 7, 2026	▾
17	Point72 Asset Management, L.P. CIK 1603466 · View history	$31.44M 990,280 shares	0.05%	-111.99K(-10.20%)Reduced	SEC filing ↗ Aug 14, 2026	▾
18	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$26.39M 831,068 shares	0.00%	-88.26K(-9.60%)Reduced	SEC filing ↗ Aug 14, 2026	▾
19	Jupiter Topco LLC CIK 2146052 · View history	$22.50M 709,022 shares	0.01%	—	SEC filing ↗ Aug 14, 2026	▾
20	Logos Global Management LP CIK 1792126 · View history	$19.05M 600,000 shares	0.82%	-900.00K(-60.00%)Reduced	SEC filing ↗ Aug 14, 2026	▾

Showing 20 / 135 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

135

Cancelled or null records excluded

Disclosed shares

52,107,163

Not deduplicated across managers

Disclosed value

$1.65B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Immunocore Holdings plc · Q2 2026

Explore all 135 reporting institutions.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.