Adaptive Biotechnologies Corp — Director's Dealing 2025

Mar 7, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Adaptive Biotechnologies Corp (ADPT)
CIK: 0001478320
Period of Report: 2025-03-04

Reporting Person: ROBINS HARLAN S (Chief Scientific Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-04	Common Stock	A	355000	—	Acquired	1376180	Direct
2025-03-05	Common Stock	S	40603	$6.98	Disposed	1335577	Direct
2025-03-05	Common Stock	S	56053	$6.99	Disposed	1279524	Direct

Footnotes

F1: This transaction represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of RSUs. This sale is mandated by Issuer's election under the equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person.