Adaptive Biotechnologies Corp (ADPT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

150,211,321Shares Outstanding

30,761,637Shares held by institutions

$485,726,248Value of institutional holdings

93.01%Institutional ownership %

4.97%Shares Changed QoQ

268No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, Adaptive Biotechnologies Corp (NASDAQ:ADPT) is held by 268 institutional firms.

The percentage of Adaptive Biotechnologies owned by institutions changed from 96.5% in September 2025 to 93.0% in December 2025, marking a slight down trend.
The company experienced a 4.97% quarterly change in institutional shares held, alongside an increase of 30.73% in total owners annually.
The latest 13F cycle for Adaptive Biotechnologies reveals that of 268 total investors, 142 funds grew their exposure, whereas 90 reduced theirs and 36 made no changes.
Collectively, institutional investors increased their stake in Adaptive Biotechnologies to 139.72Mn shares as of December 2025, a change that is up by 6.62Mn shares quarter on quarter and down 3.36Mn shares year over year.
With 29.99Mn shares, VIKING GLOBAL INVESTORS LP commands the largest institutional position in Adaptive Biotechnologies as of December 31, 2025, equating to 19.97% of the company.
Among the most significant buyers of Adaptive Biotechnologies during December 2025 were WESTFIELD CAPITAL MANAGEMENT CO LP (4.06Mn), NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (1.94Mn), LORD, ABBETT & CO. LLC (1.85Mn), WELLINGTON MANAGEMENT GROUP LLP (1.66Mn), PBU - The Pension Fund of Early Childhood & Youth Educators (1.65Mn).
Leading sellers of Adaptive Biotechnologies stock in December 2025 included AMERIPRISE FINANCIAL INC (3.38Mn), Amova Asset Management Americas, Inc. (1.70Mn), Sumitomo Mitsui Trust Group, Inc. (1.70Mn), Aristotle Atlantic Partners, LLC (1.28Mn), VOYA INVESTMENT MANAGEMENT LLC (1.26Mn).
The top 10 institutional holders of Adaptive Biotechnologies for the quarter ending December 2025 included 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), LORD, ABBETT & CO. LLC (3.08Mn), GOLDMAN SACHS GROUP INC (2.90Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (2.76Mn), JENNISON ASSOCIATES LLC (2.67Mn).

268 Institutional Holders

30,761,637 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VIKING GLOBAL INVESTORS LP	31 Dec, 2025	29,993,708	0	0.00%	$487,097,818.00
BlackRock, Inc.	31 Dec, 2025	13,333,559	-24,418	-0.18%	$216,536,989.00
VANGUARD GROUP INC	31 Dec, 2025	11,282,152	6,983	0.06%	$183,222,148.00
WESTFIELD CAPITAL MANAGEMENT CO LP	31 Dec, 2025	4,060,481	4,060,481	0.00%	$65,942,211.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	3,511,855	110,825	3.26%	$57,040,977.00
STATE STREET CORP	31 Dec, 2025	3,181,644	102,362	3.32%	$51,669,899.00
LORD, ABBETT & CO. LLC	31 Dec, 2025	3,080,759	1,854,355	151.20%	$50,032.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	2,902,269	1,022,417	54.39%	$47,132,848.00
DRIEHAUS CAPITAL MANAGEMENT LLC	31 Dec, 2025	2,760,387	-259,553	-8.59%	$44,828,685.00
JENNISON ASSOCIATES LLC	31 Dec, 2025	2,674,668	1,363,181	103.94%	$43,436,609.00
AMERIPRISE FINANCIAL INC	31 Dec, 2025	2,590,984	-3,380,722	-56.61%	$42,077,600.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	2,422,089	-19,313	-0.79%	$39,334,725.00
FRED ALGER MANAGEMENT, LLC	31 Dec, 2025	2,245,418	-268,816	-10.69%	$36,465,588.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	2,165,327	1,664,243	332.13%	$35,164,911.00
ARK Investment Management LLC	31 Dec, 2025	2,138,960	-1,026,676	-32.43%	$34,736,718.00
Amova Asset Management Americas, Inc.	31 Dec, 2025	1,947,963	-1,702,683	-46.64%	$31,615,439.00
Sumitomo Mitsui Trust Group, Inc.	31 Dec, 2025	1,947,963	-1,702,683	-46.64%	$31,634,919.00
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	31 Dec, 2025	1,940,376	1,940,376	0.00%	$31,512,000.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	1,902,685	1,164,509	157.75%	$30,899,604.00
Aristotle Atlantic Partners, LLC	31 Dec, 2025	1,842,444	-1,284,275	-41.07%	$29,921,291.00

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