ADAPTIVE BIOTECHNOLOGIES (ADPT) Institutional Ownership Changes & 13F Activity

ADAPTIVE BIOTECHNOLOGIES (ADPT) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Polen Capital Management, ARK Invest, Renaissance Technologies LLC, and Viking Global Investors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2022ARK InvestBuy563,6019,336,619$66,477
Q3 2022Renaissance Technologies LLCSell-28,700457,800$3,260
Q2 2022ARK InvestBuy1,063,3528,773,018$68,605
Q2 2022Renaissance Technologies LLCBuy30,900486,500$3,936
Q1 2022ARK InvestBuy2,011,7987,709,666$107,010
Q1 2022Renaissance Technologies LLCBuy295,400455,600$6,324
Q4 2021ARK InvestBuy841,4475,697,868$159,882
Q3 2021ARK InvestBuy489,4444,856,421$165,070
Q2 2021ARK InvestBuy893,0674,366,977$178,435
Q1 2021ARK InvestBuy1,928,2073,473,910$139,860
Q1 2021Renaissance Technologies LLCBuy160,200160,200$6,450
Q4 2020Viking Global InvestorsSell-3,500,00029,993,708$1,773,528
Q4 2020ARK InvestBuy660,9811,545,703$91,397
Q3 2020ARK InvestBuy575,584884,722$43,024
Q2 2020ARK InvestBuy309,138309,138$14,956
Q1 2020Viking Global InvestorsSell-4,912,89933,493,708$930,455
Q2 2019Viking Global InvestorsBuy38,406,60738,406,607$1,855,039

Frequently asked questions about ADPT activity

  • Which institutional owners are buying ADPT?

    Institutional owners buying ADPT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ADPT activity?

    "Buy" means an investor increased their reported position in ADPT compared to the prior reporting period. This reflects growing exposure to ADAPTIVE BIOTECHNOLOGIES (ADPT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ADPT increasing?

    Institutional interest in ADPT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

Related ADPT insights