Andreas Halvorsen’s Adaptive Biotechnologies ADPT Stock Holding History

Andreas Halvorsen’s Portfolio ADPT Stock Details ADPT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$643M	Hold	29,993,708	–	–	1.83%	21
2026 Q1	$416M	Hold	29,993,708	–	–	1.16%	35
2025 Q4	$487M	Hold	29,993,708	–	–	1.29%	30
2025 Q3	$449M	Hold	29,993,708	–	–	1.17%	38
2025 Q2	$349M	Hold	29,993,708	–	–	1.01%	44
2025 Q1	$223M	Hold	29,993,708	–	–	0.71%	50
2024 Q4	$180M	Hold	29,993,708	–	–	0.58%	47
2024 Q3	$154M	Hold	29,993,708	–	–	0.56%	47
2024 Q2	$109M	Hold	29,993,708	–	–	0.42%	53
2024 Q1	$96.3M	Hold	29,993,708	–	–	0.36%	54
2023 Q4	$147M	Hold	29,993,708	–	–	0.54%	43
2023 Q3	$163M	Hold	29,993,708	–	–	0.66%	40
2023 Q2	$201M	Hold	29,993,708	–	–	0.82%	41
2023 Q1	$265M	Hold	29,993,708	–	–	1.24%	26
2022 Q4	$229M	Hold	29,993,708	–	–	1.15%	28
2022 Q3	$214M	Hold	29,993,708	–	–	0.99%	35
2022 Q2	$243M	Hold	29,993,708	–	–	1.11%	32
2022 Q1	$416M	Hold	29,993,708	–	–	1.68%	21
2021 Q4	$842M	Hold	29,993,708	–	–	2.42%	12
2021 Q3	$1.02B	Hold	29,993,708	–	–	2.8%	7
2021 Q2	$1.23B	Hold	29,993,708	–	–	3.72%	6
2021 Q1	$1.21B	Hold	29,993,708	–	–	3.6%	6
2020 Q4	$1.77B	Sell	29,993,708 -3,500,000	-10%	-$180M	4.88%	3
2020 Q3	$1.63B	Hold	33,493,708	–	–	5.88%	2
2020 Q2	$1.62B	Hold	33,493,708	–	–	7%	2
2020 Q1	$930M	Sell	33,493,708 -4,912,899	-13%	-$137M	4.84%	5
2019 Q4	$1.15B	Hold	38,406,607	–	–	5.38%	3
2019 Q3	$1.19B	Hold	38,406,607	–	–	6.18%	2
2019 Q2	$1.86B	Buy	+38,406,607	New	+$1.7B	8.32%	1

Other funds holding ADPT

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Westfield Capital Management Boston, Massachusetts $30.6B AUM 61.81% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Andreas Halvorsen's ADPT Position: Q2 2026 in Review

Andreas Halvorsen held its Adaptive Biotechnologies (ADPT) position steady in Q2 2026 at 29,993,708 shares worth $643M. The position accounts for 1.83% of the portfolio, ranked #21.

Andreas Halvorsen first reported a position in ADPT in Q2 2019 and has held it in 29 quarters since. The position peaked at $1.86B in Q2 2019. 298 funds tracked by Wall St. Rank hold ADPT as of Q2 2026.

Andreas Halvorsen held 29,993,708 shares of Adaptive Biotechnologies worth $643M as of Q2 2026.
Andreas Halvorsen left its Adaptive Biotechnologies share count unchanged in Q2 2026.
Adaptive Biotechnologies made up 1.83% of Andreas Halvorsen's portfolio in Q2 2026, its #21 holding.
Andreas Halvorsen first reported a position in Adaptive Biotechnologies in Q2 2019 and has held it in 29 quarters since.
Andreas Halvorsen's Adaptive Biotechnologies position peaked at $1.86B in Q2 2019.
298 funds tracked by Wall St. Rank held Adaptive Biotechnologies as of Q2 2026.

Based on Viking Global Investors's 13F filing for Q2 2026, filed 14 Aug 2026.