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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 Dec 2025
the date the book describes
Filed
17 Feb 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 4 listed it in both
Shares listed
15,216,235
combined, among listed positions
Reported value
$528m
combined, at the quarter end

Among the 92 comparable managers: 16 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,063,055.

Managers listing IMCR in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 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
Wellington Management Group LLP4,693,643$163munder 0.1%Trimmed-87,24617 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)4,539,225$158munder 0.1%Added+118,82217 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc968,784$34munder 0.1%Trimmed-47,98717 Feb 2026 (the filing on sec.gov)
Millennium Management LLC911,597$32munder 0.1%Trimmed-354,36817 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP504,151$17munder 0.1%Trimmed-31,68017 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC461,830$16munder 0.1%Added+262,33310 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd454,404$16munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
MFS Investment Management407,404$14munder 0.1%Trimmed-34,99422 Jan 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP383,558$13munder 0.1%Added+50,00013 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP359,293$12munder 0.1%Added+138,59717 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP322,300$11munder 0.1%Trimmed-7,70017 Feb 2026 (the filing on sec.gov)
Woodline Partners LP316,685$11munder 0.1%Added+109,24717 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC234,268$8.1munder 0.1%Added+192,07017 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.183,940$6.4munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC140,900$4.9munder 0.1%Trimmed-1,87012 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC100,940$3.5munder 0.1%Added+60,67012 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP61,163$2.1munder 0.1%Trimmed-62,07913 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP35,188$1.2munder 0.1%Added+24,99517 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP33,579$1.2munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC28,164$978kunder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC27,648$960kunder 0.1%Added+7,72617 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp22,231$772kunder 0.1%Added+1,09217 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC15,388$534kunder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP9,952$345kunder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, 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 (6)

Exited (0)

No exit shown by a manager’s own filing.

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 →