DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
IMCR

IMMUNOCORE HLDGS PLC

155 institutions still hold IMMUNOCORE HLDGS PLC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 45258D105·155 13F holders·last filed Mar 31, 2026
Market cap
5.0%
vs prior quarter
13F value held
$1.3B
75.0% inst. owned
of float
Holders
155
+55 QoQ
filers reporting
Activity
+85 / −52
+726 added · −754 reduced
this quarter
Concentration
10.97%
RTW INVESTMENTS, LP #1
top holder share
AI Holders Summary · Q1 2026

155 institutions reported IMCR in Q1 2026. RTW INVESTMENTS, LP leads at 11.0% of the visible book. +55 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
RTW INVESTMENTS, LP
CIK 0001493215
$147M4.9M1.46%Q1 2026
02
FMR LLC
CIK 0000315066
$146M4.8M0.01%Q1 2026
03
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$142M4.7M0.03%Q1 2026
04
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
$111M3.7M0.09%Q1 2026
05
Bellevue Group AG
CIK 0001674546
$97M2.8M1.84%Q4 2025
06
Vestal Point Capital, LP
CIK 0001974915
$83M2.8M2.33%Q1 2026
07
BAKER BROS. ADVISORS LP
CIK 0001263508
$81M2.3M0.47%Q4 2025
08
TANG CAPITAL MANAGEMENT LLC
CIK 0001232621
$80M2.6M4.06%Q1 2026
09
Caption Management, LLC
CIK 0001706766
$58M1.9M0.34%Q1 2026
10
Deep Track Capital, LP
CIK 0001856083
$58M1.9M0.95%Q1 2026
11
BVF INC/IL
CIK 0001056807
$50M1.5M1.69%Q4 2025
12
Logos Global Management LP
CIK 0001792126
$45M1.5M2.26%Q1 2026
13
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$37M1.2M0.02%Q1 2026
14
ARMISTICE CAPITAL, LLC
CIK 0001601086
$36M1.2M0.64%Q1 2026
15
Point72 Asset Management, L.P.
CIK 0001603466
$33M1.1M0.04%Q1 2026
16
Fiera Capital Corp
CIK 0001505817
$33M1.1M0.11%Q1 2026
17
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$31M1.0M0.02%Q1 2026
18
Kynam Capital Management, LP
CIK 0001907884
$27M885K1.65%Q1 2026
19
Trails Edge Capital Partners, LP
CIK 0002077247
$24M683K5.85%Q4 2025
20
BlackRock, Inc.
CIK 0002012383
$20M656K0.00%Q1 2026
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