How many institutional investors hold ADPT?

6 tracked institutional investors disclosed a position in ADPT (ADAPTIVE BIOTECHNOLOGIES COR) in their most recent 13F filing.

Who is the largest institutional holder of ADPT?

Andreas Halvorsen, Viking Global Investors, holds the largest disclosed position in ADPT, valued at $487M.

Where does this ADPT ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

ADPT — ADAPTIVE BIOTECHNOLOGIES COR

Name: ADAPTIVE BIOTECHNOLOGIES COR (ADPT) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About ADAPTIVE BIOTECHNOLOGIES COR (ADPT)

ADAPTIVE BIOTECHNOLOGIES COR (ADPT) appears in the most recent 13F filings of 6 tracked institutional investors. The largest disclosed position is held by Andreas Halvorsen (Viking Global Investors), valued at $487M. Across recent filings, tracked investors recorded 9 new positions, 2 increased, 3 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ADPT

/100

Institutional Accumulation

Added / Increased11

Reduced3

Exited0

BearishBullish

Crowded Trade Score™

How many top investors track ADPT

/100

Moderate Interest

6investors

Several tracked investors have exposure.

UndiscoveredCrowded

151015+

ADPT Ownership Composition

How ADAPTIVE BIOTECHNOLOGIES COR is held across tracked investor types, based on reported 13F positions.

Dominant Type

Other

91% of tracked value

Institutions

tracked investors

Total Reported

$481M

combined 13F value

Other91.0%
Growth Funds6.0%
Hedge Funds2.9%

Other(4)

91.0%

Growth Funds(1)

6.0%

Hedge Funds(1)

2.9%

Tracked investors reporting ADPT

Investor	Firm	Shares	Market value	% of portfolio	As of
Andreas Halvorsen	Viking Global Investors	30M	$416.3M	1.16%	Mar 31, 2026
Cathie Wood	ARK Investment Management	2.1M	$29.1M	0.23%	Mar 31, 2026
Izzy Englander	Millennium Management	1.1M	$15M	0.01%	Mar 31, 2026
Steve Cohen	Point72 Asset Management	1M	$14.2M	0.02%	Mar 31, 2026
Ken Griffin	Citadel Advisors	377.9K	$5.2M	0.00%	Mar 31, 2026
Ray Dalio	Bridgewater Associates	89.7K	$1.2M	0.01%	Mar 31, 2026

Andreas HalvorsenMar 31, 2026
Viking Global Investors
Shares
30M
Value
$416.3M
% Portfolio
1.16%
Cathie WoodMar 31, 2026
ARK Investment Management
Shares
2.1M
Value
$29.1M
% Portfolio
0.23%
Izzy EnglanderMar 31, 2026
Millennium Management
Shares
1.1M
Value
$15M
% Portfolio
0.01%
Steve CohenMar 31, 2026
Point72 Asset Management
Shares
1M
Value
$14.2M
% Portfolio
0.02%
Ken GriffinMar 31, 2026
Citadel Advisors
Shares
377.9K
Value
$5.2M
% Portfolio
0.00%
Ray DalioMar 31, 2026
Bridgewater Associates
Shares
89.7K
Value
$1.2M
% Portfolio
0.01%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Izzy Englander	New	—	$298.1K	Feb 17, 2026
Izzy Englander	New	—	$15M	May 15, 2026
Steve Cohen	New	—	$3.3M	Feb 17, 2026
Andreas Halvorsen	New	—	$487.1M	Feb 17, 2026
Andreas Halvorsen	New	—	$416.3M	May 15, 2026
Steve Cohen	New	—	$14.2M	May 15, 2026
Ray Dalio	Reduced	-66.21%	$1.2M	May 15, 2026
Cathie Wood	Reduced	-2.15%	$29.1M	May 12, 2026
Ken Griffin	Increased	96.47%	$1.3M	Feb 17, 2026
Ray Dalio	Increased	75.53%	$4.3M	Feb 13, 2026
Cathie Wood	Reduced	-32.43%	$34.7M	Feb 11, 2026
Ken Griffin	New	—	$599.7K	Nov 14, 2025
Ray Dalio	New	—	$2.3M	Nov 13, 2025
Cathie Wood	New	—	$47.4M	Nov 12, 2025

Izzy Englander
New
$298.1KFeb 17, 2026
Izzy Englander
New
$15MMay 15, 2026
Steve Cohen
New
$3.3MFeb 17, 2026
Andreas Halvorsen
New
$487.1MFeb 17, 2026
Andreas Halvorsen
New
$416.3MMay 15, 2026
Steve Cohen
New
$14.2MMay 15, 2026
Ray Dalio
Reduced
$1.2M(-66.21%)May 15, 2026
Cathie Wood
Reduced
$29.1M(-2.15%)May 12, 2026
Ken Griffin
Increased
$1.3M(96.47%)Feb 17, 2026
Ray Dalio
Increased
$4.3M(75.53%)Feb 13, 2026
Cathie Wood
Reduced
$34.7M(-32.43%)Feb 11, 2026
Ken Griffin
New
$599.7KNov 14, 2025
Ray Dalio
New
$2.3MNov 13, 2025
Cathie Wood
New
$47.4MNov 12, 2025

Frequently asked questions

How many institutional investors hold ADPT?: 6 tracked institutional investors disclosed a position in ADPT (ADAPTIVE BIOTECHNOLOGIES COR) in their most recent 13F filing.
Who is the largest institutional holder of ADPT?: Andreas Halvorsen, Viking Global Investors, holds the largest disclosed position in ADPT, valued at $487M.
Did institutional ownership of ADPT increase or decrease?: Across recent 13F filings, tracked investors recorded 9 new positions, 2 increased, 3 reduced, and 0 fully exited ADPT.
Where does this ADPT ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.