ADPTAdaptive Biotechnologies Corporation

$26.18

Who owns ADPT

295 institutions reported holding ADPT for 2026Q1, together 98% of the company, more than the 278 a quarter earlier.

295

Institutions reporting a position · as of 2026Q1 · up from 278 the quarter before

Shares held by institutions
151.8M

Shares held by institutions · 98% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.11B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
42%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
28
New positions
50
Positions exited
38
Added to
98
Reduced
90
Top 10 holdersof the company
53%
Institutional ownership by quarter, 2019Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q1295151.8M$2.11B
2025Q4278150.2M$2.44B
2025Q3268145.4M$2.17B
2025Q2240148.1M$1.73B
2025Q1223152.9M$1.14B
2024Q4204143.2M$858M
2024Q3185143.1M$732M
2024Q2174148.6M$538M
2024Q1189142.6M$457M
2023Q4198143.6M$704M
2023Q3189141.2M$769M
2023Q2209137.2M$921M
2023Q1224133.6M$1.18B
2022Q4221132.6M$1.01B
2022Q3225131.0M$931M
2022Q2207134.2M$1.08B
Largest reported holders, 2026Q1
HolderShares% of companyValue
VIKING GLOBAL INVESTORS LP30.0M19%$416M
BlackRock Inc.13.3M8.6%$185M
VANGUARD GROUP INC11.7M7.5%$162M
WESTFIELD CAPITAL MANAGEMENT CO LP5.4M3.5%$75M
Invesco Ltd.4.5M2.9%$62M
WELLINGTON MANAGEMENT GROUP LLP3.9M2.5%$54M
GEODE CAPITAL MANAGEMENT LLC3.6M2.3%$50M
LORD, ABBETT & CO. LLC3.5M2.3%$49M
GOLDMAN SACHS GROUP INC3.2M2.1%$45M
STATE STREET CORP3.2M2.1%$45M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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