Francis Lo - 14 May 2021 Form 4 Insider Report for Adaptive Biotechnologies Corp (ADPT)

Role: Chief People Officer
Signature: /s/ Francis Lo by Eric Billings, Attorney-in-Fact
Issuer symbol: ADPT
Transactions as of: 14 May 2021
Net transactions value: -$52,000
Form type: 4
Filing time: 17 May 2021, 20:00:31 UTC
Next filing: 08 Mar 2022
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	$15,600	+2,000	+9.7%	$7.80	22,604	14 May 2021	Direct	F1
transaction	ADPT	Common Stock	Sale	$67,600	-2,000	-8.8%	$33.80^*	20,604	14 May 2021	Direct	F1
holding	ADPT	Common Stock						2,500	14 May 2021	By You Jin Lee (spouse)

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	-2,000	-1.3%	$0.000000	151,000	14 May 2021	Common Stock	2,000	$7.80	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 May 18, 2020.
F2	The options vested with respect to 1/4 of such shares on May 6, 2020, with 1/48 of such shares vesting thereafter at the end of each full month of continuous service until fully vested.