Adaptive Biotechnologies Corp — Director's Dealing 2023

Mar 9, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Adaptive Biotechnologies Corp (ADPT)
CIK: 0001478320
Period of Report: 2023-03-06

Reporting Person: LO FRANCIS (Chief People Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-03-06	Common Stock	A	85697	—	Acquired	175285	Direct
2023-03-06	Common Stock	S	6816	$8.57	Disposed	168469	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-03-06	Stock Option (right to buy)	$8.46	A	128599	Acquired	2033-03-06	Common Stock (128599)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2500	Indirect

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 the Issuer's election under its 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.

F2: The options vest with respect to 1/4 of such shares on March 4, 2024, with 1/48 of such shares vesting thereafter at the end of each full month of continuous service until fully vested.