Adaptive Biotechnologies Corp

ADPTNASDAQ

$26.90-2.94 (-9.85% today)

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Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Adaptive Biotechnologies Corp price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 6, 2026. Price (+85.9%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
Viking Global Investors LP	18.86%	$643M	1.83%	Not reported
BlackRock, Inc.	9.52%	$325M	0.00%	Not reported
Vanguard Capital Management LLC	4.03%	$137M	0.00%	Not reported
Wellington Management Group LLP	3.72%	$127M	0.02%	Add 53.25%
Vanguard Portfolio Management LLC	3.44%	$117M	0.01%	Not reported
D. E. Shaw & Co., Inc.	2.91%	$99.2M	0.05%	Not reported
Westfield Capital Management Co LP	2.68%	$91.5M	0.30%	Reduce 21.50%
Geode Capital Management, LLC	2.29%	$78.1M	0.00%	Not reported
State Street Corp	2.17%	$74.2M	0.00%	Not reported
Invesco Ltd.	1.95%	$66.4M	0.01%	Not reported
Goldman Sachs Group Inc	1.88%	$64M	0.01%	Not reported
Driehaus Capital Management LLC	1.59%	$54.2M	0.31%	Add 44.39%
Arrowstreet Capital, Limited Partnership	1.59%	$54.2M	0.02%	Not reported
Lord, Abbett & Co. LLC	1.56%	$53.1M	0.15%	Reduce 30.01%
Nuveen, LLC	1.49%	$50.8M	0.01%	Not reported
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	1.37%	$46.8M	0.05%	Reduce 18.81%
Fred Alger Management, LLC	1.32%	$44.9M	0.15%	Add 1.41%
ARK Investment Management LLC	1.31%	$44.8M	0.29%	Reduce 0.13%
Nomura Asset Management International Inc.	1.19%	$40.5M	0.06%	Add 0.43%
Aristotle Atlantic Partners, LLC	1.16%	$39.4M	1.64%	Add 7.24%
T. Rowe Price Investment Management, Inc.	1.12%	$38.2M	0.03%	Add 93.59%
Bank of America Corp	1.09%	$37.1M	0.00%	Not reported
Jane Street Group, LLC	1.00%	$34.1M	0.00%	Not reported
Northern Trust Corp	0.95%	$32.3M	0.00%	Not reported
Sumitomo Mitsui Trust Group, Inc.	0.84%	$28.5M	0.02%	Reduce 16.64%
Amova Asset Management Americas, Inc.	0.84%	$28.5M	0.37%	Reduce 16.64%
Oberweis Asset Management Inc/	0.79%	$27M	0.56%	Add 55.99%
Perceptive Advisors LLC	0.77%	$26.1M	0.39%	Add 698.25%
Charles Schwab Investment Management Inc	0.74%	$25.3M	0.00%	Not reported
Ameriprise Financial Inc	0.68%	$23.3M	0.00%	Not reported
Massachusetts Financial Services Co	0.67%	$23M	0.01%	Reduce 0.04%
Blue Water Life Science Advisors, LP	0.64%	$21.7M	13.65%	Not reported
Vanguard Fiduciary Trust Co	0.59%	$20M	0.00%	Not reported
Aberdeen Group plc	0.58%	$19.7M	0.03%	Reduce 14.16%
Freestone Grove Partners LP	0.55%	$18.9M	0.12%	New Not reported
Kennedy Capital Management LLC	0.53%	$18.2M	0.32%	Reduce 8.77%
Panagora Asset Management Inc	0.49%	$16.7M	0.05%	Not reported
Morgan Stanley	0.48%	$16.4M	0.00%	Not reported
Granite Investment Partners, LLC	0.48%	$16.2M	0.83%	Not reported
Trexquant Investment LP	0.46%	$15.8M	0.09%	Not reported
FMR LLC	0.45%	$15.2M	0.00%	Not reported
Jennison Associates LLC	0.43%	$14.7M	0.01%	Reduce 8.88%
Hillsdale Investment Management Inc.	0.43%	$14.7M	0.33%	Not reported
Next Century Growth Investors LLC	0.38%	$13.1M	0.69%	Add 20.92%
Wasatch Advisors LP	0.36%	$12.4M	0.08%	New Not reported
Tudor Investment Corp Et Al	0.34%	$11.7M	0.02%	Not reported
ExodusPoint Capital Management, LP	0.33%	$11.1M	0.07%	Not reported
Sei Investments Co	0.32%	$10.9M	0.01%	Not reported
Millennium Management LLC	0.32%	$10.8M	0.00%	Not reported
BNP Paribas Financial Markets	0.31%	$10.7M	0.00%	Not reported

50 of 278 holders

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