A

SEC EDGAR - Form 4 insider activity

Adaptive Biotechnologies Corp $ADPT

Tracked equity - 4 filings indexed by Nortis

Nortis signal thesis

Cluster activity detected. Review whether the filings are open-market trades or routine compensation events.

0

OM buys - 90d

1

OM sells - 90d

3

Routine filings

4

Cluster filings

$193.3K

Largest trade

29/100

Avg signal score

Filing tape

Recent filings

Last 30d: 4
Option ExerciseCLUSTERRoutine 15/100
filed 2026-10-08
RJOfficer

RUBINSTEIN JULIE - President and COO - $144.2K

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Open-market SellCLUSTERHigh signal 71/100
filed 2026-10-08
BSOfficer

BOBULSKY SUSAN - Chief Commercial Officer, MRD - $193.3K

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Option ExerciseCLUSTERRoutine 15/100
filed 2026-10-06
RJOfficer

RUBINSTEIN JULIE - President and COO - $144.2K

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Option ExerciseCLUSTERRoutine 15/100
filed 2026-10-06
LFOfficer

LO FRANCIS - Chief People Officer - $68.0K

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing