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ADPT in the 13F filings

Adaptive Biotechnologies Corp · CUSIP 00650F109

Sector · Pharmaceuticals and biotechnologyTheme · Biological productsTheme · Healthcare: biopharma and medtech· L3VLUP-defined
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
33
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 6 listed it in both
Shares listed
54,499,360
combined, among listed positions
Reported value
$757m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 19 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,879,987.

Managers listing ADPT 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.

33 of 33 holders

ActionFiling
Viking Global Investors LP29,993,708$416m1.16%Held015 May 2026 (the filing on sec.gov)
Invesco Ltd4,450,066$62munder 0.1%Added+1,342,41312 May 2026 (the filing on sec.gov)
Wellington Management Group LLP3,857,422$54munder 0.1%Added+1,692,09515 May 2026 (the filing on sec.gov)
ARK Investment Management LLC2,092,969$29m0.23%Trimmed-45,99112 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP1,995,202$28munder 0.1%Trimmed-426,88714 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.1,965,610$27munder 0.1%Added+62,92515 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,566,213$22munder 0.1%Trimmed-2,821,14815 May 2026 (the filing on sec.gov)
Millennium Management LLC1,081,366$15munder 0.1%Added+1,063,00915 May 2026 (the filing on sec.gov)
MFS Investment Management1,072,331$15munder 0.1%Added+149,83014 May 2026 (the filing on sec.gov)
Point72 Asset Management LP1,021,808$14munder 0.1%Added+818,73315 May 2026 (the filing on sec.gov)
Tudor Investment Corp786,281$11munder 0.1%Added+232,24415 May 2026 (the filing on sec.gov)
Jane Street Group LLC682,182$9.5munder 0.1%Newnew12 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)567,032$7.9munder 0.1%Added+180,94815 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP555,020$7.7m0.06%Newnew14 May 2026 (the filing on sec.gov)
AQR Capital Management LLC485,233$6.7munder 0.1%Added+16,79315 May 2026 (the filing on sec.gov)
Citadel Advisors LLC363,333$5.0munder 0.1%Added+306,38115 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC262,199$3.6munder 0.1%Added+151,74715 May 2026 (the filing on sec.gov)
Man Group PLC245,944$3.4munder 0.1%Added+34,65415 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC239,800$3.3munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP170,928$2.4munder 0.1%Trimmed-199,74815 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP157,817$2.2munder 0.1%Added+121,00215 May 2026 (the filing on sec.gov)
AllianceBernstein LP121,228$2.0munder 0.1%Trimmed-38,36215 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC121,986$1.7munder 0.1%Added+52,25115 May 2026 (the filing on sec.gov)
Two Sigma Investments LP118,200$1.6munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Polen Capital Management LLC116,051$1.6munder 0.1%Trimmed-209,71614 May 2026 (the filing on sec.gov)
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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 (5)

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.
3 in Q3 2024 to 7 in Q2 2026

Tracked managers listing it, at least.

0510152020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ADPT by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20198$1.9bnn.a.n.a.
Q3 20192$1.2bnn.a.n.a.
Q4 20195$1.2bnn.a.n.a.
Q1 20204$1.1bnn.a.n.a.
Q2 20208$1.9bnn.a.n.a.
Q3 202011$2.2bnn.a.n.a.
Q4 202010$2.7bnn.a.n.a.
Q1 20216$1.9bnn.a.n.a.
Q2 20217$2.0bnn.a.n.a.
Q3 20217$1.7bnn.a.n.a.
Q4 20217$1.5bnn.a.n.a.
Q1 20225$525mn.a.n.a.
Q2 20223$311mn.a.n.a.
Q3 20223$281mn.a.n.a.
Q4 20223$300mn.a.n.a.
Q1 20233$347mn.a.n.a.
Q2 20233$272mn.a.n.a.
Q3 20234$262mn.a.n.a.
Q4 20235$232m22
Q1 20243$131m11
Q2 20243$151m10
Q3 20243$214m20
Q4 20244$239m21
Q1 20253$283m11
Q2 20255$404m22
Q3 20255$503m22
Q4 20256$535m2113
Q1 20266$457m1914
Q2 20267$946m1220

Compare with…

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

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

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 ADPT, latest filings →Back to the 13F Explorer →