Vault-13

IMMUNOCORE HLDGS PLC IMCR

ADS · ADR · CUSIP 45258D105 · ISIN US45258D1054

111 institutional holders +6 vs Q4 2022
34,777,34134.8m shares reported held*
$1.7bnreported value*
20 new 36 added 33 reduced 14 sold out net bought ≈ $223.9m (+4.5m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($81.8k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $49.40. Options: 8 managers hold calls ($22.8m notional), 7 hold puts ($3.3m).

Trends to Q1 2023

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 86Q4 22: 105Q1 23: 111111Q3 22Q4 22Q1 23
Numbers
QuarterHolders
Q3 202286
Q4 2022105
Q1 2023111

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q4 22: 65 bought or addedQ4 22: 39 cut or sold outQ4 22Q1 23: 56 bought or addedQ1 23: 47 cut or sold outQ1 23
Numbers
QuarterBought or addedCut or sold out
Q4 20226539
Q1 20235647

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$10m$20m$30mQ3 22 calls: $1.4mQ3 22 puts: $9.9mQ3 22P/C 7.11Q4 22 calls: $10.3mQ4 22 puts: $6.1mQ4 22P/C 0.60Q1 23 calls: $22.8mQ1 23 puts: $3.3mQ1 23P/C 0.14
Numbers
QuarterCallsPutsP/C
Q3 2022$1.4m$9.9m7.11
Q4 2022$10.3m$6.1m0.60
Q1 2023$22.8m$3.3m0.14

Biggest buyers

FMR LLC Added +2,175,189+2.2m
WELLINGTON MANAGEMENT GROUP LLP Added +1,222,343+1.2m
MORGAN STANLEY Added +441,769+441.8k
BRAIDWELL LP New +426,110+426.1k
PICTET ASSET MANAGEMENT SA Added +270,636+270.6k
Paradigm Biocapital Advisors LP Added +268,331+268.3k
GREAT POINT PARTNERS LLC New +255,367+255.4k
Candriam S.C.A. Added +198,685+198.7k
VICTORY CAPITAL MANAGEMENT INC New +169,851+169.9k
RENAISSANCE TECHNOLOGIES LLC Added +139,500+139.5k

Biggest sellers

Avidity Partners Management LP Reduced -384,200-384.2k
Rock Springs Capital Management LP Reduced -319,404-319.4k
MILLENNIUM MANAGEMENT LLC Reduced -220,125-220.1k
ACADIAN ASSET MANAGEMENT LLC Reduced -206,422-206.4k
CITADEL ADVISORS LLC Reduced -139,266-139.3k
VOLORIDGE INVESTMENT MANAGEMENT, LLC Reduced -78,491-78.5k
Cubist Systematic Strategies, LLC Reduced -62,562-62.6k
JPMORGAN CHASE & CO Reduced -56,749-56.7k
D. E. Shaw & Co., Inc. Reduced -48,960-49.0k
PRINCIPAL FINANCIAL GROUP INC Reduced -48,179-48.2k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $9.0m181.8k shares
JANE STREET GROUP, LLC New $5.4m109.8k shares
UBS Group AG Added $3.5m69.8k shares
MILLENNIUM MANAGEMENT LLC Added $3.2m65.0k shares
CITADEL ADVISORS LLC Added $850.4k17.2k shares
GROUP ONE TRADING LLC Added $588.3k11.9k shares
SIMPLEX TRADING, LLC Added $237.0k4.8k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $2.5m51.3k shares
SIMPLEX TRADING, LLC Added $430.0k8.7k shares
UBS Group AG Unchanged $207.6k4.2k shares
CITADEL ADVISORS LLC Reduced $49.4k1.0k shares
Cutler Group LLC / CA New $34.0k2.2k shares
GROUP ONE TRADING LLC Reduced $9.9k200 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
WELLINGTON MANAGEMENT GROUP LLP 13G · institution +1.4 pts · filed 2026-08-13 11.6% +1.4 pts 6.0m 2026-08-13
Jallal Bahija 13G · exempt (held before listing) new · filed 2025-02-14 8.2% new 4.5m 2025-02-14
PRIMECAP MANAGEMENT CO/CA/ 13G · institution +2.2 pts · filed 2025-08-14 7.5% +2.2 pts 3.8m 2025-08-14
Bellevue Group AG 13G · institution new · filed 2025-11-14 5.6% new 2.8m 2025-11-14
TANG CAPITAL MANAGEMENT LLC 13G · passive investor new · filed 2025-10-24 5.2% new 2.6m 2025-10-24

Fell to 5% or below in the last year: FMR LLC (3.6%, 2026-10-07), Vestal Point Capital, LP (3.5%, 2026-08-14), T. Rowe Price Investment Management, Inc. (3.7%, 2026-05-15)

Insider purchases and sales in Q1 2023

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q1 2023.

Holders, Q1 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 RTW INVESTMENTS, LP 5.82% of their portfolio NEW YORK, NY 5,649,9435.6m $279.3m $279.3m 5.82% Added +90.6k +90,621
2 FMR LLC 0.01% of their portfolio BOSTON, MA 4,179,1024.2m $206.6m $206.6m 0.01% Added +2.2m +2,175,189
3 WELLINGTON MANAGEMENT GROUP LLP 0.03% of their portfolio Boston, MA 3,375,3093.4m $166.9m $166.9m 0.03% Added +1.2m +1,222,343
4 Rock Springs Capital Management LP 3.54% of their portfolio Baltimore, MD 3,001,6623.0m $148.4m $148.4m 3.54% Reduced -319.4k -319,404
5 BAKER BROS. ADVISORS LP 0.68% of their portfolio NEW YORK, NY 2,520,7312.5m $124.6m $124.6m 0.68% Unchanged
6 PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio BALTIMORE, MD 1,383,4401.4m $68.4m $68.4m 0.01% Added +49.5k +49,524
7 Paradigm Biocapital Advisors LP 5.28% of their portfolio NEW YORK, NY 1,126,2561.1m $55.7m $55.7m 5.28% Added +268.3k +268,331
8 GENERAL ATLANTIC, L.P. 0.55% of their portfolio New York, NY 950,000950.0k $47.0m $47.0m 0.55% Unchanged
9 PICTET ASSET MANAGEMENT SA 0.06% of their portfolio GENEVA 73, V8 888,951889.0k $43.9m $43.9m 0.06% Added +270.6k +270,636
10 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 796,491796.5k $39.4m $39.4m 0.00% Added +441.8k +441,769
11 BlackRock Inc. 0.00% of their portfolio New York, NY 777,926777.9k $38.5m $38.5m 0.00% Reduced -11.1k -11,069
12 Avidity Partners Management LP 1.26% of their portfolio DALLAS, TX 769,800769.8k $38.1m $38.1m 1.26% Reduced -384.2k -384,200
13 Holocene Advisors, LP 0.18% of their portfolio New York, NY 725,957726.0k $35.9m $35.9m 0.18% Added +127.2k +127,244
14 FIRST MANHATTAN CO. LLC. 0.12% of their portfolio NEW YORK, NY 613,749613.7k $30.3m $30.3m 0.12% Unchanged
15 Bill & Melinda Gates Foundation 25.19% of their portfolio SEATTLE, WA 576,923576.9k $28.5m $28.5m 25.19% Unchanged
16 Logos Global Management LP 3.54% of their portfolio San Francisco, CA 500,000500.0k $24.7m $24.7m 3.54% Unchanged
17 PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio DES MOINES, IA 453,804453.8k $22.4m $22.4m 0.02% Reduced -48.2k -48,179
18 RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio NEW YORK, NY 444,600444.6k $22.0m $22.0m 0.03% Added +139.5k +139,500
19 BRAIDWELL LP 0.69% of their portfolio STAMFORD, CT 426,110426.1k $21.1m $21.1m 0.69% New
20 TANG CAPITAL MANAGEMENT LLC 2.99% of their portfolio SAN DIEGO, CA 405,600405.6k $20.1m $20.1m 2.99% Unchanged
21 COWEN AND COMPANY, LLC 2.36% of their portfolio NEW YORK, NY 405,174405.2k $20.0m $20.0m 2.36% Unchanged
22 ARMISTICE CAPITAL, LLC 0.43% of their portfolio NEW YORK, NY 378,000378.0k $18.7m $18.7m 0.43% Added +42.0k +42,000
23 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 365,582365.6k $18.1m $18.1m 0.01% Reduced -352 -352
24 Candriam S.C.A. 0.10% of their portfolio STRASSEN, N4 317,760317.8k $14.5m $14.5m 0.10% Added +198.7k +198,685
25 D. E. Shaw & Co., Inc. 0.03% of their portfolio New York, NY 314,439314.4k $15.5m $15.5m 0.03% Reduced -49.0k -48,960
26 GREAT POINT PARTNERS LLC 2.50% of their portfolio Greenwich, CT 255,367255.4k $12.6m $12.6m 2.50% New
27 Thrivent Financial for Lutherans 0.03% of their portfolio Minneapolis, MN 217,057217.1k $10.7m $10.7m 0.03% Added +3.3k +3,289
28 BARCLAYS PLC 0.01% of their portfolio LONDON, X0 202,984203.0k $10.0m $10.0m 0.01% Added +5.9k +5,856
29 Velan Capital Investment Management LP 8.76% of their portfolio ALPHARETTA, GA 200,000200.0k $9.9m $9.9m 8.76% Reduced -6.0k -5,974
30 VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio San Antonio, TX 169,851169.9k $8.4m $8.4m 0.01% New
31 SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio London, X0 165,571165.6k $8.2m $8.2m 0.01% Unchanged
32 Qube Research & Technologies Ltd 0.04% of their portfolio LONDON, X0 153,809153.8k $7.6m $7.6m 0.04% Reduced -11.7k -11,656
33 Rhenman & Partners Asset Management AB 0.68% of their portfolio Stockholm, V7 131,288131.3k $6.2m $6.2m 0.68% Reduced -18.7k -18,712
34 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 117,603117.6k $5.8m $5.8m 0.01% Reduced -220.1k -220,125
35 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 111,500111.5k $5.5m $5.5m 0.00% Reduced -1.4k -1,400
36 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 100,645100.6k $5.0m $5.0m 0.01% Added +29.3k +29,264
37 Allspring Global Investments Holdings, LLC 0.01% of their portfolio CHARLOTTE, NC 99,19999.2k $4.9m $4.9m 0.01% Added +4.3k +4,291
38 TD Asset Management Inc 0.01% of their portfolio Toronto, A6 96,25396.3k $4.8m $4.8m 0.01% Added +3.3k +3,347
39 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 95,74995.7k $4.7m $4.7m 0.00% Added +74.6k +74,637
40 SAMSARA BIOCAPITAL, LLC 0.83% of their portfolio PALO ALTO, CA 80,96381.0k $4.0m $4.0m 0.83% Unchanged
41 FEDERATED HERMES, INC. 0.01% of their portfolio PITTSBURGH, PA 74,36174.4k $3.7m $3.7m 0.01% New
42 Pier Capital, LLC 0.51% of their portfolio STAMFORD, CT 68,54468.5k $3.4m $3.4m 0.51% Reduced -189 -189
43 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 66,56666.6k $3.3m $3.3m 0.00% Added +3.0k +3,024
44 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.02% of their portfolio JUPITER, FL 66,24366.2k $3.3m $3.3m 0.02% Reduced -78.5k -78,491
45 ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio Boston, MA 63,46363.5k $3.1m $3.1m 0.01% Reduced -206.4k -206,422
46 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 60,32260.3k $3.0m $3.0m 0.00% Reduced -139.3k -139,266
47 Eschler Asset Management LLP 2.34% of their portfolio London, X0 60,00060.0k $3.0m $3.0m 2.34% Added +28.0k +28,000
48 CWM, LLC 0.02% of their portfolio OMAHA, NE 57,70857.7k $2.9m $2.9m 0.02% Reduced -2.7k -2,737
49 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 56,73056.7k $2.8m $2.8m 0.00% Reduced -56.7k -56,749
50 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.06% of their portfolio CHICAGO, IL 47,86547.9k $2.4m $2.4m 0.06% New
51 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio TORONTO, A6 45,20045.2k $2.2m $2.2m 0.01% Unchanged
52 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 41,85441.9k $2.1m $2.1m 0.00% Added +29.4k +29,390
53 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 40,98041.0k $2.0m $2.0m 0.00% Reduced -2.4k -2,363
54 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 39,16639.2k $1.9m $1.9m 0.00% Added +2.9k +2,936
55 Trexquant Investment LP 0.05% of their portfolio STAMFORD, CT 37,24437.2k $1.8m $1.8m 0.05% Added +21.0k +20,992
56 Jump Financial, LLC 0.07% of their portfolio Chicago, IL 32,66832.7k $1.6m $1.6m 0.07% Reduced -858 -858
57 ALPS ADVISORS INC 0.01% of their portfolio Denver, CO 31,67931.7k $1.6m $1.6m 0.01% Added +984 +984
58 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 25,06525.1k $1.2m $1.2m 0.00% Added +11.4k +11,395
59 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 24,12024.1k $1.2m $1.2m 0.00% Reduced -6.3k -6,260
60 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 21,42121.4k $1.1m $1.1m 0.01% Reduced -62.6k -62,562
61 ADVISORY RESEARCH INC 0.17% of their portfolio CHICAGO, IL 20,39120.4k $1.0m $1.0m 0.17% Reduced -1.0k -1,010
62 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 19,72719.7k $975.3k $975.3k 0.00% Reduced -1.6k -1,608
63 Squarepoint Ops LLC 0.01% of their portfolio NEW YORK, NY 19,03019.0k $940.8k $940.8k 0.01% Added +5.7k +5,696
64 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 18,90018.9k $934.4k $934.4k 0.00% New
65 Robertson Stephens Wealth Management, LLC 0.06% of their portfolio San Francisco, CA 15,92515.9k $787.3k $787.3k 0.06% Reduced -6.8k -6,806
66 DekaBank Deutsche Girozentrale 0.00% of their portfolio FRANKFURT, 2M 15,00015.0k $698.0k $698.0k 0.00% New
67 ETF MANAGERS GROUP, LLC 0.02% of their portfolio Summit, NJ 14,82214.8k $732.8k $732.8k 0.02% New
68 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 14,45814.5k $714.8k $714.8k 0.00% Unchanged
69 HighVista Strategies LLC 0.53% of their portfolio BOSTON, MA 13,19413.2k $652.3k $652.3k 0.53% Unchanged
70 Robeco Institutional Asset Management B.V. 0.00% of their portfolio ROTTERDAM, P7 12,67612.7k $626.7k $626.7k 0.00% Unchanged
71 Vident Investment Advisory, LLC 0.02% of their portfolio Alpharetta, GA 12,62412.6k $624.1k $624.1k 0.02% Reduced -156 -156
72 Virtu Financial LLC 0.05% of their portfolio New York, NY 10,02910.0k $496.0k $496.0k 0.05% New
73 Dalton Investments, Inc. 0.43% of their portfolio El Segundo, CA 10,00010.0k $494.4k $494.4k 0.43% Unchanged
74 SG Americas Securities, LLC 0.00% of their portfolio NEW YORK, NY 6,4526.5k $319.0k $319.0k 0.00% Added +191 +191
75 Tower Research Capital LLC (TRC) 0.01% of their portfolio NEW YORK, NY 6,3886.4k $316.0k $316.0k 0.01% Added +4.1k +4,147
76 Legal & General Group Plc 0.00% of their portfolio London, X0 6,0546.1k $299.5k $299.5k 0.00% Added +304 +304
77 Allianz Asset Management GmbH 0.00% of their portfolio MUNICH, 2M 5,9005.9k $291.7k $291.7k 0.00% New
78 Dynamic Technology Lab Private Ltd 0.03% of their portfolio SINGAPORE, U0 5,6705.7k $280.0k $280.0k 0.03% New
79 Aigen Investment Management, LP 0.04% of their portfolio NEW YORK, NY 5,3695.4k $265.4k $265.4k 0.04% Reduced -205 -205
80 VIRTUS ADVISERS, LLC 0.14% of their portfolio HARTFORD, CT 5,2275.2k $258.4k $258.4k 0.14% Added +96 +96
81 FRED ALGER MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 5,0475.0k $249.5k $249.5k 0.00% Reduced -3.3k -3,312
82 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 5,0225.0k $248.3k $248.3k 0.00% Reduced -103 -103
83 JTC Employer Solutions Trustee Ltd 0.02% of their portfolio ST HELIER, Y9 3,9083.9k $193.0k $193.0k 0.02% Unchanged
84 BIT Capital GmbH 0.03% of their portfolio BERLIN, 2M 3,3003.3k $163.2k $163.2k 0.03% New
85 Kapitalo Investimentos Ltda 0.05% of their portfolio SAO PAULO, D5 3,2343.2k $159.9k $159.9k 0.05% Added +1.2k +1,234
86 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 1,9852.0k $98.1k $98.1k 0.00% New
87 Quantbot Technologies LP 0.01% of their portfolio NEW YORK, NY 1,8001.8k $89.0k $89.0k 0.01% Reduced -5.6k -5,600
88 Cutler Group LLC / CA 0.01% of their portfolio SAN FRANCISCO, CA 1,7801.8k $88.0k $88.0k 0.01% New
89 UBS Group AG 0.00% of their portfolio ZURICH, V8 1,6551.7k $81.8k $81.8k 0.00% Reduced -4.9k -4,894
90 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 1,3941.4k $68.0k $68.0k 0.00% New
91 ASSETMARK, INC 0.00% of their portfolio CONCORD, CA 886886 $43.8k $43.8k 0.00% Added +278 +278
92 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 749749 $37.0k $37.0k 0.00% Added +20 +20
93 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 583583 $28.8k $28.8k 0.00% Added +2 +2
94 Navera Investment Management Ltd. 0.00% of their portfolio LONDON, X0 575575 $28.4k $28.4k 0.00% Unchanged
95 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 432432 $21.4k $21.4k 0.00% New
96 China Universal Asset Management Co., Ltd. 0.01% of their portfolio SHANGHAI, F4 404404 $20.0k $20.0k 0.01% Added +142 +142
97 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 396396 $19.6k $19.6k 0.00% Reduced -431 -431
98 TUCKER ASSET MANAGEMENT LLC 0.01% of their portfolio LITTLETON, CO 365365 $18.0k $18.0k 0.01% New
99 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 340340 $16.8k $16.8k 0.00% Reduced -6 -6
100 Beacon Capital Management, LLC 0.00% of their portfolio FRANKLIN, TN 250250 $12.4k $12.4k 0.00% Unchanged