Adaptive Biotechnologies Corp (ADPT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

32,853,549Shares held by institutions

$421,839,569Value of institutional holdings

97.06%Institutional ownership %

-5.85%Shares Changed QoQ

237No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Adaptive Biotechnologies Corp (NASDAQ:ADPT) showed up in the 13F filings of 272 institutional investors as of December 2025.

They owned 87.9% of outstanding stock in December 2025, down from 90.5% the prior quarter.
They increased total shares held in Adaptive Biotechnologies by 4.73% from the prior quarter, while the number of investors in ADPT increased 32.68% year over year.
Among the 272 funds, 144 bought more Adaptive Biotechnologies shares, 91 sold down, and 37 held their ground.
In total, institutional investors held 143.43Mn shares in Adaptive Biotechnologies as of December 2025, up by 6.47Mn shares quarter on quarter, and down 4.31Mn shares year over year.
As of December 31, 2025, the biggest holder of Adaptive Biotechnologies is VIKING GLOBAL INVESTORS LP at 29.99Mn shares, representing 18.38% of shares outstanding.
The most significant purchases of ADPT for the quarter ending December 2025 came from WESTFIELD CAPITAL MANAGEMENT CO LP (4.06Mn), Invesco Ltd. (2.22Mn), NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (1.94Mn), LORD, ABBETT & CO. LLC (1.85Mn), WELLINGTON MANAGEMENT GROUP LLP (1.66Mn).
Top sellers of ADPT stock for the quarter ending December 2025 included Ameriprise Financial Inc (3.38Mn), Bank Of America Corp /De/ (2.39Mn), Amova Asset Management Americas, Inc. (1.7Mn), Sumitomo Mitsui Trust Group, Inc. (1.7Mn), Aristotle Atlantic Partners, LLC (1.28Mn).
According to Business Quant data, leading holders of ADPT for December 2025 are VIKING GLOBAL INVESTORS LP (29.99Mn), BlackRock, Inc. (13.33Mn), VANGUARD GROUP INC (11.28Mn), WESTFIELD CAPITAL MANAGEMENT CO LP (4.06Mn), GEODE CAPITAL MANAGEMENT, LLC (3.51Mn), State Street Corp (3.18Mn), Invesco Ltd. (3.11Mn), LORD, ABBETT & CO. LLC (3.08Mn), Goldman Sachs Group Inc (2.9Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (2.76Mn).

272 Institutional Holders

32,853,549 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-24,418	-0.18%	$0.00
VIKING GLOBAL INVESTORS LP	31 Dec, 2025	0	0.00%	$0.00
ARK Investment Management LLC	31 Dec, 2025	-1,026,676	-32.43%	$0.00
Barclays Plc	31 Dec, 2025	-238,329	-46.06%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	6,983	0.06%	$0.00
Aristotle Atlantic Partners, LLC	31 Dec, 2025	-1,284,275	-41.07%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	10,127	201.45%	$0.00
WESTFIELD CAPITAL MANAGEMENT CO LP	31 Dec, 2025	4,060,481	0.00%	$0.00
PBU - The Pension Fund of Early Childhood & Youth Educators	31 Dec, 2025	1,650,303	0.00%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	110,825	3.26%	$0.00
Aberdeen Group plc	31 Dec, 2025	52,543	5.29%	$0.00
State Street Corp	31 Dec, 2025	102,362	3.32%	$0.00
Qube Research & Technologies Ltd	31 Dec, 2025	-38,069	-4.00%	$0.00
Invesco Ltd.	31 Dec, 2025	2,216,595	248.76%	$0.00
Catalio Capital Management, LP	31 Dec, 2025	-63,695	-7.20%	$0.00
LORD, ABBETT & CO. LLC	31 Dec, 2025	1,854,355	151.20%	$0.00
Nuveen, LLC	31 Dec, 2025	-389,689	-33.13%	$0.00
Goldman Sachs Group Inc	31 Dec, 2025	1,022,417	54.39%	$0.00
STEMPOINT CAPITAL LP	31 Dec, 2025	606,825	0.00%	$0.00
DRIEHAUS CAPITAL MANAGEMENT LLC	31 Dec, 2025	-259,553	-8.59%	$0.00

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