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IMCR · AMGN in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

IMCRAMGN
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • IMCR
  • AMGN
0102030202120222023202420252026
Holders and value by quarter
QuarterIMCRAMGN
Q3 2020none listed holders, n.a.16 holders, $16.3bn
Q4 2020none listed holders, n.a.19 holders, $14.0bn
Q1 20212 holders, $5.9m16 holders, $14.5bn
Q2 20211 holders, $5.4m23 holders, $13.8bn
Q3 2021none listed holders, n.a.24 holders, $11.6bn
Q4 2021none listed holders, n.a.21 holders, $10.4bn
Q1 20221 holders, $12m23 holders, $9.9bn
Q2 2022none listed holders, n.a.28 holders, $9.7bn
Q3 20222 holders, $32m21 holders, $7.9bn
Q4 20224 holders, $181m24 holders, $9.3bn
Q1 20232 holders, $203m22 holders, $8.4bn
Q2 20234 holders, $416m26 holders, $7.4bn
Q3 20235 holders, $353m26 holders, $8.7bn
Q4 20234 holders, $511m24 holders, $8.4bn
Q1 20246 holders, $609m25 holders, $6.7bn
Q2 20244 holders, $248m20 holders, $8.0bn
Q3 20244 holders, $259m21 holders, $8.8bn
Q4 20244 holders, $232m20 holders, $8.2bn
Q1 20255 holders, $238m25 holders, $12.0bn
Q2 20255 holders, $193m20 holders, $10.2bn
Q3 20254 holders, $205m17 holders, $10.4bn
Q4 20255 holders, $214m19 holders, $18.0bn
Q1 20264 holders, $182m15 holders, $21.4bn
Q2 20264 holders, $248m23 holders, $24.9bn
IMCR

Immunocore HLDGS PLC

Holders
6
Reported value
$609m
Buyers
4
Sellers
1

Breadth +3 among 93 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP
AMGN

Amgen Inc

Holders
25
Reported value
$6.7bn
Buyers
10
Sellers
15

Breadth -5 among 93 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP

Who holds both, Q1 2024

Among the 29 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only IMCR (4)

Artisan Partners LP, Renaissance Technologies LLC, Voloridge Investment Management LLC, Wellington Management Group LLP

Only AMGN (23)

Acadian Asset Management LLC, AllianceBernstein LP, AQR Capital Management LLC, ARK Investment Management LLC, Bridgewater Associates LP, Capital Research Global Investors, Caxton Associates LLP, D. E. Shaw & Co., Dodge & Cox, Fidelity (FMR LLC), Hudson Bay Capital Management LP, Invesco Ltd, Jane Street Group LLC, Janus Henderson Group Ltd, Man Group PLC, Marshall Wace LLP, Neuberger Berman Group LLC, Squarepoint Ops LLC, Tudor Investment Corp, Two Sigma Advisers LP, Two Sigma Investments LP, Verition Fund Management LLC, Winton Group Ltd

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. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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