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Adaptive Biotechnologies Corp

ADPT
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001478320

In the last 90 days, Adaptive Biotechnologies Corp insiders filed 0 open-market purchases and 14 sales; 301 institutions reported holding it in 13F filings for Q2 2026, worth $3.34B in total; superinvestors Viking Global Investors and ARK Invest hold it.

13F holders, Q1 2026

Institutional positions in Adaptive Biotechnologies Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
299
+19 vs. Q4 2025
Shares held
151.9M
+12.9M (+9.3%) vs. Q4 2025
Total value
$2.11B
−$148.6M (−6.6%) vs. Q4 2025
New holders
57
102 more added
Sold out
38
95 more reduced

4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ADPT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 299 institutions
Q1 2021: 249 institutionsQ2 2021: 231 institutionsQ3 2021: 220 institutionsQ4 2021: 214 institutionsQ1 2022: 221 institutionsQ2 2022: 210 institutionsQ3 2022: 226 institutionsQ4 2022: 223 institutionsQ1 2023: 227 institutionsQ2 2023: 210 institutionsQ3 2023: 191 institutionsQ4 2023: 200 institutionsQ1 2024: 190 institutionsQ2 2024: 177 institutionsQ3 2024: 187 institutionsQ4 2024: 207 institutionsQ1 2025: 225 institutionsQ2 2025: 242 institutionsQ3 2025: 271 institutionsQ4 2025: 284 institutionsQ1 2026: 299 institutionsQ2 2026: 301 institutions
Value heldQ1 2026: $2.11B
Q1 2021: $4.58BQ2 2021: $4.80BQ3 2021: $4.00BQ4 2021: $3.46BQ1 2022: $1.74BQ2 2022: $1.08BQ3 2022: $931.2MQ4 2022: $1.01BQ1 2023: $1.18BQ2 2023: $920.9MQ3 2023: $769.4MQ4 2023: $704.0MQ1 2024: $457.4MQ2 2024: $538.6MQ3 2024: $732.5MQ4 2024: $858.6MQ1 2025: $1.14BQ2 2025: $1.73BQ3 2025: $2.18BQ4 2025: $2.44BQ1 2026: $2.11BQ2 2026: $3.34B
Institutions holding ADPT and their total value by quarter
QuarterHoldersValue
Q2 2026301$3.34B
Q1 2026299$2.11B
Q4 2025284$2.44B
Q3 2025271$2.18B
Q2 2025242$1.73B
Q1 2025225$1.14B
Q4 2024207$858.6M
Q3 2024187$732.5M
Q2 2024177$538.6M
Q1 2024190$457.4M
Q4 2023200$704.0M
Q3 2023191$769.4M
Q2 2023210$920.9M
Q1 2023227$1.18B
Q4 2022223$1.01B
Q3 2022226$931.2M
Q2 2022210$1.08B
Q1 2022221$1.74B
Q4 2021214$3.46B
Q3 2021220$4.00B
Q2 2021231$4.80B
Q1 2021249$4.58B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Adaptive Biotechnologies Corp; share changes are against Q4 2025.

Institutions holding ADPT in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Balyasny Asset Management LLC0$00.00%−426,462−100.0%Sold out
Castleark Management LLC0$00.00%−390,874−100.0%Sold out
Jupiter Asset Management Ltd0$00.00%−362,811−100.0%Sold out
Harvest Investment Services, LLC0$00.00%−356,114−100.0%Sold out
EAM Investors, LLC0$00.00%−351,297−100.0%Sold out
Braidwell LP0$00.00%−311,991−100.0%Sold out
Pier Capital, LLC0$00.00%−234,848−100.0%Sold out
Jump Financial, LLC0$00.00%−204,500−100.0%Sold out
Neo Ivy Capital Management0$00.00%−153,826−100.0%Sold out
Lisanti Capital Growth, LLC0$00.00%−142,515−100.0%Sold out
Two Sigma Advisers, LP0$00.00%−128,100−100.0%Sold out
Cookson Peirce & Co Inc0$00.00%−105,689−100.0%Sold out
Walleye Capital LLC0$00.00%−95,324−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−86,886−100.0%Sold out
Susquehanna Fundamental Investments, LLC0$00.00%−56,408−100.0%Sold out
Headlands Technologies LLC0$00.00%−55,191−100.0%Sold out
Teacher Retirement System of Texas0$00.00%−51,464−100.0%Sold out
Winton Group Ltd0$00.00%−49,700−100.0%Sold out
Sigma Planning Corp0$00.00%−32,550−100.0%Sold out
Harbor Capital Advisors, Inc.0$00.00%−28,983−100.0%Sold out
Yarbrough Capital, LLC0$00.00%−28,563−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−25,998−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−23,777−100.0%Sold out
Versor Investments LP0$00.00%−23,200−100.0%Sold out
Capstone Investment Advisors, LLC0$00.00%−20,599−100.0%Sold out
Quest Partners LLC0$00.00%−20,317−100.0%Sold out
Skopos Labs, Inc.0$00.00%−15,006−100.0%Sold out
Amalgamated Bank0$00.00%−4,695−100.0%Sold out
RiverPark Advisors, LLC0$00.00%−3,826−100.0%Sold out
Clearstead Advisors, LLC0$00.00%−3,752−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−1,699−100.0%Sold out
Daiwa Securities Group Inc.0$00.00%−430−100.0%Sold out
Quarry LP0$00.00%−390−100.0%Sold out
Optima Capital LLC0$00.00%−65−100.0%Sold out
Bessemer Group Inc0$00.00%−78−100.0%Sold out
Breakwater Investment Management0$00.00%−27−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−4−100.0%Sold out
Vanguard Group Inc––––Not filed
CIBC Private Wealth Group, LLC––––Not filed
Comerica Bank––––Not filed
Global Retirement Partners, LLC––––Not filed