JULIE RUBINSTEIN - 04 Mar 2025 Form 4 Insider Report for Adaptive Biotechnologies Corp (ADPT)

Role: President and COO
Signature: /s/ Julie Rubinstein by Kyle Piskel, Attorney-in-Fact
Issuer symbol: ADPT
Transactions as of: 04 Mar 2025
Net transactions value: -$415,540
Form type: 4
Filing time: 06 Mar 2025, 19:19:20 UTC
Previous filing: 06 Mar 2024
Next filing: 05 Mar 2026
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ADPT	Common Stock	Award	$0	+175,000	+37%	$0.000000	647,754	04 Mar 2025	Direct
transaction	ADPT	Common Stock	Sale	$279,507	-40,044	-6.2%	$6.98	607,710	05 Mar 2025	Direct	F1
transaction	ADPT	Common Stock	Sale	$136,032	-19,461	-3.2%	$6.99	588,249	05 Mar 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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.

Content

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.