Form 4 Tracker
Adaptive Biotechnologies Corp
ADPT

71 insider filings · Latest: Oct 14, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Oct 16, 2026Oct 16 11:21 PMJulie RubinsteinPresident and COO
Sale
11,881$24.24$288.0K377,802(D)

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Oct 15, 2026Oct 16 11:21 PMJulie RubinsteinPresident and COO
Sale
11,881$25.61$304.3K377,802(D)

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Oct 14, 2026Oct 16 11:21 PMJulie RubinsteinPresident and COO
Sale
11,881$25.68$305.1K377,802(D)

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Oct 13, 2026Oct 13 11:05 PMJulie RubinsteinPresident and COO
Sale
11,881$25.50$303.0K377,802(D)

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Oct 12, 2026Oct 13 11:05 PMJulie RubinsteinPresident and COO
Sale
11,881$25.51$303.1K377,802(D)

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Oct 9, 2026Oct 13 11:05 PMJulie RubinsteinPresident and COO
Sale
11,881$26.41$313.8K377,802(D)

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Oct 8, 2026Oct 8 10:54 PMJulie RubinsteinPresident and COO
Sale
11,881$25.66$304.9K377,802(D)

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Oct 7, 2026Oct 8 10:54 PMJulie RubinsteinPresident and COO
Sale
11,881$26.40$313.7K377,802(D)

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Oct 6, 2026Oct 8 10:54 PMJulie RubinsteinPresident and COO
Sale
11,881$27.75$329.7K377,802(D)

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Oct 6, 2026Oct 8 10:52 PMSusan BobulskyChief Commercial Officer, MRD
Sale
6,444$30.00$193.3K389,350(D)

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Oct 6, 2026Oct 6 8:22 PMSUSAN BOBULSKY
Proposed Sale
6,444$29.84$192.3K—

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Oct 5, 2026Oct 6 12:15 AMJulie RubinsteinPresident and COO
Sale
11,881$29.19$346.8K377,802(D)

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Oct 2, 2026Oct 6 12:15 AMJulie RubinsteinPresident and COO
Sale
11,881$28.13$334.2K377,802(D)

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Oct 1, 2026Oct 6 12:15 AMJulie RubinsteinPresident and COO
Sale
11,881$28.05$333.3K377,802(D)

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Oct 1, 2026Oct 6 12:12 AMFrancis LOChief People Officer
Sale
26,792$28.28$757.7K220,867(D)

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Oct 1, 2026Oct 1 8:32 PMJULIE RUBINSTEIN
Proposed Sale
379,777$28.90$11.0M—

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Sep 16, 2026Sep 19 12:17 AMFrancis LOChief People Officer
Sale
115,406$28.06$3.2M220,867(D)

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Sep 15, 2026Sep 17 10:50 PMSusan BobulskyChief Commercial Officer, MRD
Sale
1,195$27.00$32.3K395,794(D)

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Sep 16, 2026Sep 16 8:40 PMFRANCIS LO
Proposed Sale
142,198$26.68$3.8M—

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Sep 15, 2026Sep 15 8:35 PMSUSAN BOBULSKY
Proposed Sale
1,195$24.78$29.6K—

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Page 1 of 10

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jul 2, 2026Jul 6 11:19 PMFrancis LOChief People Officer
Option Exercise
37,863$12.1460,222(D)

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Jul 1, 2026Jul 6 11:19 PMFrancis LOChief People Officer
Option Exercise
37,758$12.14126,584(D)

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Jun 29, 2026Jun 30 11:25 PMSharon BenzenoChief Commercial Ofc Imm Med
Option Exercise
103,295$12.14113,457(D)

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Jun 26, 2026Jun 30 11:25 PMSharon BenzenoChief Commercial Ofc Imm Med
Option Exercise
11,034$12.141,837(D)

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Jun 25, 2026Jun 29 11:49 PMMichelle Renee GriffinDirector
Option Exercise
52,084$7.800(D)

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Jun 4, 2026Jun 9 12:29 AMFrancis LOChief People Officer
Option Exercise
19,521$12.14140,648(D)

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Apr 27, 2026Apr 29 11:08 PMJulie RubinsteinPresident and COO
Option Exercise
14,707$8.4645,731(D)

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Apr 24, 2026Apr 24 10:29 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.4660,438(D)

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Apr 23, 2026Apr 24 10:29 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.4675,160(D)

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Apr 22, 2026Apr 24 10:29 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.4689,882(D)

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Apr 21, 2026Apr 21 10:07 PMJulie RubinsteinPresident and COO
Option Exercise
26,603$12.14379,777(D)

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Apr 20, 2026Apr 21 10:07 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.46119,326(D)

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Apr 17, 2026Apr 21 10:07 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.46134,048(D)

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Apr 16, 2026Apr 16 11:36 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.46148,770(D)

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Apr 15, 2026Apr 16 11:36 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.46163,492(D)

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Apr 14, 2026Apr 16 11:36 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.46178,214(D)

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Apr 13, 2026Apr 13 11:44 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$8.46192,936(D)

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Apr 10, 2026Apr 13 11:44 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$7.278,109(D)

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Apr 9, 2026Apr 13 11:44 PMJulie RubinsteinPresident and COO
Option Exercise
14,722$7.2722,831(D)

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Apr 8, 2026Apr 10 10:52 PMFrancis LOChief People Officer
Option Exercise
2,344$3.9988,297(D)

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