ADPT Adaptive Biotechnologies Corporation

NASDAQ
$24.20

Adaptive Biotechnologies Corporation (ADPT) Institutional Ownership

What the institutions did with ADPT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
338
filed both this quarter and last
Managers holding
297
+4 on the quarter
Buyers
155
45 opened new
Sellers
129
41 sold out entirely
Buyer share
54.6%
of managers who traded it
Breadth
+9.2
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
VIKING GLOBAL INVESTORS LP 30.0M 19.2%
BlackRock, Inc. 15.1M 9.7%
VANGUARD CAPITAL MANAGEMENT LLC 6.4M 4.1%
WELLINGTON MANAGEMENT GROUP LLP 5.9M 3.8%
VANGUARD PORTFOLIO MANAGEMENT LLC 5.5M 3.5%
D. E. Shaw & Co., Inc. 4.6M 3.0%
WESTFIELD CAPITAL MANAGEMENT CO LP 4.3M 2.7%
GEODE CAPITAL MANAGEMENT, LLC 3.6M 2.3%
STATE STREET CORP 3.5M 2.2%
Invesco Ltd. 3.1M 2.0%
GOLDMAN SACHS GROUP INC 3.0M 1.9%
PRICE T ROWE ASSOCIATES INC /MD/ 2.7M 1.7%
Driehaus Capital Management LLC 2.5M 1.6%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 2.5M 1.6%
LORD, ABBETT & CO. LLC 2.5M 1.6%
Nuveen, LLC 2.4M 1.5%
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 2.2M 1.4%
FRED ALGER MANAGEMENT, LLC 2.1M 1.3%
ARK Investment Management LLC 2.1M 1.3%
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 1.9M 1.2%
Aristotle Atlantic Partners, LLC 1.8M 1.2%
T. Rowe Price Investment Management, Inc. 1.8M 1.1%
BANK OF AMERICA CORP /DE/ 1.7M 1.1%
JANE STREET GROUP, LLC 1.6M 1.0%
NORTHERN TRUST CORP 1.5M 1.0%

Largest changes

Manager Action Previous Current Change
D. E. Shaw & Co., Inc. Increased 2.0M 4.6M +2.7M
WELLINGTON MANAGEMENT GROUP LLP Increased 3.9M 5.9M +2.1M
AMERIPRISE FINANCIAL INC Reduced 3.0M 1.1M -1.9M
BlackRock, Inc. Increased 13.3M 15.1M +1.8M
PRINCIPAL FINANCIAL GROUP INC Reduced 1.7M 38.8K -1.7M
Invesco Ltd. Reduced 4.5M 3.1M -1.4M
Divisadero Street Capital Management, LP Sold Out 1.3M 0 -1.3M
Capricorn Fund Managers Ltd Reduced 1.3M 22.7K -1.3M
WESTFIELD CAPITAL MANAGEMENT CO LP Reduced 5.4M 4.3M -1.2M
PRICE T ROWE ASSOCIATES INC /MD/ Increased 1.6M 2.7M +1.1M
PERCEPTIVE ADVISORS LLC Increased 152.5K 1.2M +1.1M
Nuveen, LLC Increased 1.3M 2.4M +1.1M
LORD, ABBETT & CO. LLC Reduced 3.5M 2.5M -1.1M
Point72 Asset Management, L.P. Sold Out 1.0M 0 -1.0M
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 4.5M 5.5M +984.8K
JANE STREET GROUP, LLC Increased 682.2K 1.6M +908.3K
Freestone Grove Partners LP New 0 881.7K +881.7K
T. Rowe Price Investment Management, Inc. Increased 919.3K 1.8M +860.4K
Driehaus Capital Management LLC Increased 1.8M 2.5M +777.1K
Catalio Capital Management, LP Sold Out 722.8K 0 -722.8K
Rhenman & Partners Asset Management AB Sold Out 720.0K 0 -720.0K
HRT FINANCIAL LP Increased 131.2K 795.2K +663.9K
MILLENNIUM MANAGEMENT LLC Reduced 1.1M 504.9K -576.5K
WASATCH ADVISORS LP New 0 576.3K +576.3K
DEUTSCHE BANK AG\ Reduced 785.8K 237.4K -548.4K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Increased 2.0M 2.5M +529.4K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. Reduced 2.7M 2.2M -505.8K
BANK OF AMERICA CORP /DE/ Increased 1.2M 1.7M +502.1K
OBERWEIS ASSET MANAGEMENT INC/ Increased 807.0K 1.3M +451.8K
BNP PARIBAS FINANCIAL MARKETS Increased 81.4K 500.5K +419.1K
PBU - The Pension Fund of Early Childhood & Youth Educators Sold Out 378.1K 0 -378.1K
Jump Financial, LLC New 0 338.3K +338.3K
Lisanti Capital Growth, LLC New 0 325.2K +325.2K
VANGUARD CAPITAL MANAGEMENT LLC Increased 6.1M 6.4M +309.4K
Counterpoint Mutual Funds LLC Sold Out 307.3K 0 -307.3K
Polar Asset Management Partners Inc. New 0 272.6K +272.6K
Sumitomo Mitsui Trust Group, Inc. Reduced 1.6M 1.3M -265.5K
Amova Asset Management Americas, Inc. Reduced 1.6M 1.3M -265.5K
PANAGORA ASSET MANAGEMENT INC Increased 515.9K 777.6K +261.7K
GOLDMAN SACHS GROUP INC Reduced 3.2M 3.0M -257.9K
Granite Investment Partners, LLC Increased 500.1K 757.2K +257.2K
VOYA INVESTMENT MANAGEMENT LLC Increased 48.8K 302.1K +253.3K
SummitTX Capital, L.P. Reduced 317.6K 65.6K -252.0K
TUDOR INVESTMENT CORP ET AL Reduced 786.3K 543.5K -242.8K
STATE STREET CORP Increased 3.2M 3.5M +231.1K
ALGERT GLOBAL LLC Reduced 362.7K 131.8K -230.9K
JPMORGAN CHASE & CO Increased 259.2K 488.4K +229.2K
PRUDENTIAL FINANCIAL INC Reduced 359.1K 145.8K -213.3K
Schonfeld Strategic Advisors LLC Reduced 262.2K 51.2K -211.0K
MARSHALL WACE, LLP Increased 86.3K 292.1K +205.7K
FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. New 0 202.1K +202.1K
MORGAN STANLEY Reduced 967.1K 766.2K -200.9K
Russell Investments Group, Ltd. Reduced 274.4K 78.7K -195.7K
SUSQUEHANNA ADVISORS GROUP, INC. New 0 184.2K +184.2K
ARISTEIA CAPITAL, L.L.C. New 0 183.5K +183.5K
CITADEL ADVISORS LLC Reduced 363.3K 181.4K -182.0K
Aquatic Capital Management LLC Reduced 194.5K 12.7K -181.8K
Brevan Howard Capital Management LP Sold Out 170.9K 0 -170.9K
Trexquant Investment LP Increased 571.6K 736.3K +164.7K
Qube Research & Technologies Ltd Reduced 639.4K 479.7K -159.6K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.