Stacy L. Taylor - 07 Sep 2021 Form 4 Insider Report for Adaptive Biotechnologies Corp (ADPT)

Role: SVP and General Counsel
Signature: /s/ Stacy L. Taylor by Eric Billings as attorney-in-fact
Issuer symbol: ADPT
Transactions as of: 07 Sep 2021
Net transactions value: -$16,558
Form type: 4
Filing time: 09 Sep 2021, 19:00:15 UTC
Previous filing: 01 Jul 2021
Next filing: 23 Dec 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ADPT	Common Stock	Options Exercise	$3,242	+495	+3.3%	$6.55	15,531	07 Sep 2021	Direct	F1
transaction	ADPT	Common Stock	Sale	$19,800	-495	-3.2%	$40.00^*	15,036	07 Sep 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	-495	-3.1%	$0.000000	15,443	07 Sep 2021	Common Stock	495	$6.55	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 November 23, 2020.
F2	The options vested with respect to 1/4 of such shares on March 12, 2019, with 1/48 of such shares vesting thereafter at the end of each full month of continuous service until fully vested.