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ADPT · 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.

ADPTARGX
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.
  • ADPT
  • ARGX
0102030202120222023202420252026
Holders and value by quarter
QuarterADPTARGX
Q3 202011 holders, $2.2bn8 holders, $3.6bn
Q4 202010 holders, $2.7bn7 holders, $4.1bn
Q1 20216 holders, $1.9bn8 holders, $4.1bn
Q2 20217 holders, $2.0bn9 holders, $4.6bn
Q3 20217 holders, $1.7bn8 holders, $4.5bn
Q4 20217 holders, $1.5bn9 holders, $5.3bn
Q1 20225 holders, $525m8 holders, $5.3bn
Q2 20223 holders, $311m13 holders, $6.5bn
Q3 20223 holders, $281m14 holders, $5.3bn
Q4 20223 holders, $300m13 holders, $5.5bn
Q1 20233 holders, $347m13 holders, $5.9bn
Q2 20233 holders, $272m18 holders, $6.6bn
Q3 20234 holders, $262m21 holders, $8.7bn
Q4 20235 holders, $232m17 holders, $6.3bn
Q1 20243 holders, $131m13 holders, $6.8bn
Q2 20243 holders, $151m14 holders, $7.9bn
Q3 20243 holders, $214m13 holders, $10.7bn
Q4 20244 holders, $239m14 holders, $12.3bn
Q1 20253 holders, $283m17 holders, $11.8bn
Q2 20255 holders, $404m18 holders, $10.8bn
Q3 20255 holders, $503m16 holders, $13.8bn
Q4 20256 holders, $535m16 holders, $14.8bn
Q1 20266 holders, $457m11 holders, $12.3bn
Q2 20267 holders, $946m14 holders, $15.0bn
ADPT

Adaptive Biotechnologies Corp

Holders
5
Reported value
$404m
Buyers
2
Sellers
2

Breadth 0 among 95 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP
ARGX

Argenx Se

Holders
18
Reported value
$10.8bn
Buyers
8
Sellers
9

Breadth -1 among 95 comparable managers.

Pharmaceuticals and biotechnologyBiological productsHealthcare: biopharma and medtech · L3VLUP

Who holds both, Q2 2025

Among the 22 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only ADPT (4)

ARK Investment Management LLC, PDT Partners LLC, Polen Capital Management LLC, Viking Global Investors LP

Only ARGX (17)

Artisan Partners LP, Balyasny Asset Management LLC, Capital World Investors, Citadel Advisors LLC, D. E. Shaw & Co., Fidelity (FMR LLC), Holocene Advisors LP, Hudson Bay Capital Management LP, Janus Henderson Group Ltd, Marshall Wace LLP, Millennium Management LLC, T. Rowe Price Associates Inc, Two Sigma Investments LP, Verition Fund Management LLC, Voloridge Investment Management LLC, Wellington Management Group LLP, Woodline Partners LP

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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