L3VLUP
ProSign in

KYMR · ARGX 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.

KYMRARGX
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.
  • KYMR
  • ARGX
0102030202120222023202420252026
Holders and value by quarter
QuarterKYMRARGX
Q3 20202 holders, $8.3m8 holders, $3.6bn
Q4 20201 holders, $11m7 holders, $4.1bn
Q1 2021none listed holders, n.a.8 holders, $4.1bn
Q2 20211 holders, $1.8m9 holders, $4.6bn
Q3 20211 holders, $7.6m8 holders, $4.5bn
Q4 20211 holders, $171m9 holders, $5.3bn
Q1 20222 holders, $30m8 holders, $5.3bn
Q2 20221 holders, $2.0m13 holders, $6.5bn
Q3 20221 holders, $2.2m14 holders, $5.3bn
Q4 20223 holders, $226m13 holders, $5.5bn
Q1 20233 holders, $268m13 holders, $5.9bn
Q2 20231 holders, $2.5m18 holders, $6.6bn
Q3 20231 holders, $1.4m21 holders, $8.7bn
Q4 20233 holders, $150m17 holders, $6.3bn
Q1 20246 holders, $496m13 holders, $6.8bn
Q2 20244 holders, $343m14 holders, $7.9bn
Q3 20245 holders, $582m13 holders, $10.7bn
Q4 20246 holders, $536m14 holders, $12.3bn
Q1 20254 holders, $372m17 holders, $11.8bn
Q2 20255 holders, $615m18 holders, $10.8bn
Q3 20256 holders, $737m16 holders, $13.8bn
Q4 20257 holders, $1.7bn16 holders, $14.8bn
Q1 20268 holders, $2.1bn11 holders, $12.3bn
Q2 20268 holders, $3.0bn14 holders, $15.0bn
KYMR

Kymera Therapeutics Inc

Holders
6
Reported value
$737m
Buyers
2
Sellers
3

Breadth -1 among 95 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP
ARGX

Argenx Se

Holders
16
Reported value
$13.8bn
Buyers
10
Sellers
7

Breadth +3 among 95 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP

Who holds both, Q3 2025

Among the 18 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only KYMR (2)

Capital Research Global Investors, Holocene Advisors LP

Only ARGX (12)

Acadian Asset Management LLC, Artisan Partners LP, Capital World Investors, Citadel Advisors LLC, D. E. Shaw & Co., Fidelity (FMR LLC), Hudson Bay Capital Management LP, Janus Henderson Group Ltd, Millennium Management LLC, Moore Capital Management LP, Two Sigma Investments LP, Voloridge Investment Management LLC

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.

Back to the 13F Explorer →