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IMCR in the 13F filings

Immunocore HLDGS PLC · CUSIP 45258D105

Sector · Pharmaceuticals and biotechnologyTheme · Biological productsTheme · Healthcare: biopharma and medtech· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
18 May 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 4 listed it in both
Shares listed
17,813,332
combined, among listed positions
Reported value
$537m
combined, at the quarter end

Among the 91 comparable managers: 19 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,919,397.

Managers listing IMCR in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
Fidelity (FMR LLC)4,829,154$146munder 0.1%Added+289,92915 May 2026 (the filing on sec.gov)
Wellington Management Group LLP4,706,168$142munder 0.1%Added+12,52515 May 2026 (the filing on sec.gov)
Millennium Management LLC1,237,403$37munder 0.1%Added+325,80615 May 2026 (the filing on sec.gov)
Point72 Asset Management LP1,102,271$33munder 0.1%Added+598,12015 May 2026 (the filing on sec.gov)
Two Sigma Investments LP1,021,265$31munder 0.1%Added+661,97215 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc919,332$28munder 0.1%Trimmed-49,45215 May 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP633,174$19m0.07%Added+249,61613 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd594,712$18munder 0.1%Added+140,30818 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC501,091$15munder 0.1%Added+39,26113 May 2026 (the filing on sec.gov)
MFS Investment Management407,373$12munder 0.1%Trimmed-3114 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.335,191$10munder 0.1%Added+151,25115 May 2026 (the filing on sec.gov)
Woodline Partners LP316,762$9.6munder 0.1%Added+7715 May 2026 (the filing on sec.gov)
Citadel Advisors LLC230,399$6.9munder 0.1%Trimmed-3,86915 May 2026 (the filing on sec.gov)
Jane Street Group LLC204,368$6.2munder 0.1%Added+103,42812 May 2026 (the filing on sec.gov)
Moore Capital Management LP197,308$5.9m0.12%Newnew15 May 2026 (the filing on sec.gov)
Marshall Wace LLP180,340$5.4munder 0.1%Added+119,17715 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC164,000$4.9munder 0.1%Added+23,10014 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC113,844$3.4munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP40,279$1.2munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC19,492$588kunder 0.1%Trimmed-8,67215 May 2026 (the filing on sec.gov)
Bridgewater Associates LP18,930$571kunder 0.1%Added+8,97815 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP16,420$482kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC15,434$465kunder 0.1%Added+4615 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP8,622$260kunder 0.1%Trimmed-26,56615 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
4 in Q3 2024 to 4 in Q2 2026

Tracked managers listing it, at least.

0246202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
IMCR by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20212$5.9mn.a.n.a.
Q2 20211$5.4mn.a.n.a.
Q1 20221$12mn.a.n.a.
Q3 20222$32mn.a.n.a.
Q4 20224$181mn.a.n.a.
Q1 20232$203mn.a.n.a.
Q2 20234$416mn.a.n.a.
Q3 20235$353mn.a.n.a.
Q4 20234$511m31
Q1 20246$609m41
Q2 20244$248m31
Q3 20244$259m40
Q4 20244$232m22
Q1 20255$238m32
Q2 20255$193m14
Q3 20254$205m13
Q4 20255$214m168
Q1 20264$182m198
Q2 20264$248m1510

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

IMCR and GILD →IMCR and AMGN →IMCR and ARGX →Choose a stock to compare with IMCR →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own IMCR, latest filings →Back to the 13F Explorer →