Form 4 Tracker
Adaptive Biotechnologies Corp
ADPT

71 insider filings · Latest: Oct 14, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Feb 20, 2025Feb 20 9:02 PMChad Robins
Proposed Sale
99,107$8.37$829.5K—

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Feb 19, 2025Feb 19 9:51 PMChad Robins
Proposed Sale
186,080$8.37$1.6M—

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Feb 18, 2025Feb 18 10:35 PMChad Robins
Proposed Sale
211,160$8.27$1.7M—

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Feb 14, 2025Feb 14 9:11 PMChad Robins
Proposed Sale
158,921$8.33$1.3M—

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Feb 13, 2025Feb 13 10:11 PMChad Robins
Proposed Sale
100,287$8.52$854.4K—

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Aug 22, 2024Aug 22 8:18 PMSTACY L TAYLOR
Proposed Sale
26,922$4.50$121.1K—

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Page 10 of 10

Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Oct 16, 2026Oct 16 11:21 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14237,205(D)

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Oct 15, 2026Oct 16 11:21 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14249,086(D)

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Oct 14, 2026Oct 16 11:21 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14260,967(D)

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Oct 13, 2026Oct 13 11:05 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14272,848(D)

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Oct 12, 2026Oct 13 11:05 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14284,729(D)

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Oct 9, 2026Oct 13 11:05 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14296,610(D)

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Oct 8, 2026Oct 8 10:54 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14308,491(D)

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Oct 7, 2026Oct 8 10:54 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14320,372(D)

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Oct 6, 2026Oct 8 10:54 PMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14332,253(D)

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Oct 5, 2026Oct 6 12:15 AMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14344,134(D)

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Oct 2, 2026Oct 6 12:15 AMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14356,015(D)

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Oct 1, 2026Oct 6 12:15 AMJulie RubinsteinPresident and COO
Option Exercise
11,881$12.14367,896(D)

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Oct 1, 2026Oct 6 12:12 AMFrancis LOChief People Officer
Option Exercise
26,792$8.4693,765(D)

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Sep 16, 2026Sep 19 12:17 AMFrancis LOChief People Officer
Option Exercise
105,560$12.14103,142(D)

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Aug 18, 2026Aug 20 9:55 PMRobert HershbergDirector
Option Exercise
15,000$6.320(D)

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Aug 18, 2026Aug 20 12:15 AMChad M RobinsDirector, CEO and Chairman
Option Exercise
278,676$6.550(D)

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Aug 17, 2026Aug 20 12:15 AMChad M RobinsDirector, CEO and Chairman
Option Exercise
321,324$6.55278,676(D)

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Aug 17, 2026Aug 20 12:07 AMPeter M NeupertDirector
Option Exercise
15,000$6.320(D)

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Jul 21, 2026Jul 23 11:34 PMHarlan S RobinsChief Scientific Officer
Option Exercise
284,800$6.550(D)

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Jul 15, 2026Jul 17 11:23 PMFrancis LOChief People Officer
Option Exercise
105,762$12.1437,511(D)

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