Adaptive Biotechnologies Corp.

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ADPT·00650F109·US·Common Stock·Healthcare - Biotechnology-13D/G

ADPT (Adaptive Biotechnologies Corp.) is held by 158 institutional investors as of Q2 2026. Largest holders: VIKING GLOBAL INVESTORS LP ($643.4M), BlackRock, Inc. ($324.7M), VANGUARD CAPITAL MANAGEMENT LLC ($137.4M). Net institutional sentiment: Mixed.

158

Holders

(11 Elite)

$2.9B

Total Value

58% (156)

Consensus

91 buying - 65 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)51

Insider (Form 4)43

Activist (13D/13G)64

Congressional (STOCK Act)37

Holder Quality

82

★★★★★

Elite

44

★★★★

Strong

10

★★★

Solid

48

★★

Below

61

★

Weak

Held by 158 funds

11 elite

Who's Trading

Source dates: Price Aug 28, 2026 · Insiders Aug 28, 2026 · Activists May 15, 2026 · Congress none

InsiderOEOWEN KATEY EINTERZSell $250KAug 26, 2026

InsiderHRHERSHBERG ROBERTSell $366KAug 18, 2026

InsiderHRHERSHBERG ROBERTSell $382KAug 18, 2026

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Top Holders

Top Holders (158)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
VIKING GLOBAL INVESTORS LP	Unchanged	30M	$643.4M	1.8%	-45.84%	0
BlackRock, Inc.	Increased	15.1M(+13.8%)	$324.7M	0.0%	+207.54%	35
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	6.4M(+5.1%)	$137.4M	0.0%	+60.10%	32
WELLINGTON MANAGEMENT GROUP LLP	Increased	5.9M(+53.3%)	$126.8M	0.0%	+46.81%	42
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	5.5M(+21.9%)	$117.5M	0.0%	+53.47%	36
DED. E. Shaw & Co., Inc.	Increased	4.6M(+135.3%)	$99.2M	0.0%	+40.52%	48
WESTFIELD CAPITAL MANAGEMENT CO LP	Decreased	4.3M(-21.5%)	$91.5M	0.3%	+60.16%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	3.6M(+0.2%)	$78.1M	0.0%	+26.37%	30
STATE STREET CORP	Increased	3.5M(+7.2%)	$74.2M	0.0%	+257.43%	32
Invesco Ltd.	Decreased	3.1M(-30.5%)	$66.4M	0.0%	+66.09%	0
GOLDMAN SACHS GROUP INC	Decreased	3M(-8.0%)	$64M	0.0%	+151.39%	0
DRIEHAUS CAPITAL MANAGEMENT LLC	Increased	2.5M(+44.4%)	$54.2M	0.3%	+108.59%	47
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	2.5M(+26.5%)	$54.2M	0.0%	+75.93%	36
Nuveen, LLC	Increased	2.4M(+81.4%)	$50.8M	0.0%	+66.69%	45
BNP Paribas Asset Management Holding S.A.	Decreased	2.2M(-18.8%)	$46.8M	0.0%	+62.69%	0
FRED ALGER MANAGEMENT, LLC	Increased	2.1M(+1.4%)	$44.9M	0.1%	+117.48%	35
ARK Investment Management LLC	Decreased	2.1M(-0.1%)	$44.8M	0.3%	+25.54%	0
NANOMURA ASSET MANAGEMENT INTERNATIONAL INC.	Increased	1.9M(+0.4%)	$40.5M	0.1%	+59.11%	29
BANK OF AMERICA CORP /DE/	Increased	1.7M(+40.9%)	$37.1M	0.0%	+86.54%	39
JANE STREET GROUP, LLC	Increased	1.6M(+133.2%)	$34.1M	0.0%	+36.63%	47

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer