Jyoti Palaniappan - Jul 19, 2021 Form 4 Insider Report for Adaptive Biotechnologies Corp (ADPT)

Role: SVP, Diagnostics, T-Detect
Signature: /s/ Jyoti Palaniappan by Eric Billings as attorney-in-fact
Stock symbol: ADPT
Transactions as of: Jul 19, 2021
Transactions value $: -$8,834
Form type: 4
Date filed: 7/19/2021, 09:00 PM
Previous filing: Jun 21, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ADPT	Common Stock	Options Exercise	$14.7K	+651	+7.11%	$22.55	9.81K	Jul 19, 2021	Direct	F1
transaction	ADPT	Common Stock	Sale	-$23.5K	-651	-6.64%	$36.12^*	9.16K	Jul 19, 2021	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ADPT	Stock Option (Right to Buy)	Options Exercise	$0	-651	-0.62%	$0.00	104K	Jul 19, 2021	Common Stock	651	$22.55	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2020.
F2	The options vested with respect to 1/4 of such shares on March 18, 2021, with 1/48 of such shares vesting thereafter at the end of each full month of continuous service until fully vested.