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ADPT

Adaptive Biotechnologies Corporation

NASDAQ · Healthcare · Biotechnology · US

$24.28
−1.18%
Ask drillr
0
Insider buys (3m)
31
Insider sells (3m)
-$50.6M
Net value (3m)
-64.3%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Aug 28, 2026OWEN KATEY EINTERZ · directorSale9,615$26
Aug 20, 2026HERSHBERG ROBERT · directorM-Exempt15,000$6.32
Aug 20, 2026HERSHBERG ROBERT · directorSale15,664$24
Aug 20, 2026HERSHBERG ROBERT · directorSale15,000$24
Aug 19, 2026ROBINS CHAD M · director, officer: CEO and ChairmanM-Exempt321,324$6.55
Aug 19, 2026ROBINS CHAD M · director, officer: CEO and ChairmanSale318,799$25
Aug 19, 2026ROBINS CHAD M · director, officer: CEO and ChairmanSale2,525$26
Aug 19, 2026ROBINS CHAD M · director, officer: CEO and ChairmanM-Exempt278,676$6.55
Aug 19, 2026NEUPERT PETER M · directorM-Exempt15,000$6.32
Aug 19, 2026NEUPERT PETER M · directorSale15,000$25
Aug 19, 2026NEUPERT PETER M · directorSale40,000$25
Aug 19, 2026NEUPERT PETER M · directorSale69,690$25
Aug 19, 2026ROBINS CHAD M · director, officer: CEO and ChairmanSale204$25
Aug 19, 2026ROBINS CHAD M · director, officer: CEO and ChairmanSale278,472$24
Aug 12, 2026BOBULSKY SUSAN · officer: Chief Commercial Officer, MRDSale3,000$25
Aug 3, 2026BOBULSKY SUSAN · officer: Chief Commercial Officer, MRDSale1,299$24
Jul 23, 2026ROBINS HARLAN S · officer: Chief Scientific OfficerSale278,698$22
Jul 23, 2026ROBINS HARLAN S · officer: Chief Scientific OfficerM-Exempt284,800$6.55
Jul 23, 2026ROBINS HARLAN S · officer: Chief Scientific OfficerSale213,702$22
Jul 20, 2026BOBULSKY SUSAN · officer: Chief Commercial Officer, MRDSale5,000$23
Jul 17, 2026LO FRANCIS · officer: Chief People OfficerSale105,762$23
Jul 17, 2026LO FRANCIS · officer: Chief People OfficerM-Exempt59,374$7.80
Jul 17, 2026LO FRANCIS · officer: Chief People OfficerM-Exempt22,711$8.46
Jul 17, 2026LO FRANCIS · officer: Chief People OfficerM-Exempt23,677$12
Jul 7, 2026ROBINS HARLAN S · officer: Chief Scientific OfficerSale146,889$22
Jul 7, 2026ROBINS HARLAN S · officer: Chief Scientific OfficerSale239,351$22
Jul 6, 2026LO FRANCIS · officer: Chief People OfficerM-Exempt4,688$3.99
Jul 6, 2026LO FRANCIS · officer: Chief People OfficerM-Exempt14,064$8.12
Jul 6, 2026LO FRANCIS · officer: Chief People OfficerM-Exempt3,500$7.80
Jul 6, 2026BOBULSKY SUSAN · officer: Chief Commercial Officer, MRDSale487$22
Institutional positioning

13F filings over the trailing two quarters

New 106Increased 214Reduced 186Sold out 43
FilerActionSharesFiled
VIKING GLOBAL INVESTORS LPUnchanged29,993,708Aug 14, 2026
VIKING GLOBAL INVESTORS LPUnchanged29,993,708May 15, 2026
BlackRock, Inc.Increased15,139,159Aug 7, 2026
BLACKROCK, INC.Reduced13,303,025May 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased6,403,587Aug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position6,094,144May 15, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased5,911,366Aug 14, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased5,476,231Aug 13, 2026
WESTFIELD CAPITAL MANAGEMENT CO LPIncreased5,436,718May 11, 2026
D. E. Shaw & Co., Inc.Increased4,625,859Aug 14, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position4,491,474May 8, 2026
INVESCO LTD.Increased4,450,066May 12, 2026
WESTFIELD CAPITAL MANAGEMENT CO LPReduced4,267,645Aug 12, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased3,857,422May 15, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased3,641,837Aug 12, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 28, 2026