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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1478320	Adaptive Biotechnologies Corp	ADPT	Biological Products, (No Disgnostic Substances) (2836)	270907024

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1780660	Francis Lo	C/O Adaptive Biotechnologies Corporation 1165 Eastlake Avenue East Seattle WA 98109	Chief People Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2023-03-06	85,697	$0.00	175,285	No	4	A	Direct
Common Stock	Disposition	2023-03-06	6,816	$8.57	168,469	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	A	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Acquisiton	2023-03-06	128,599	$0.00	128,599	$8.46

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
128,599		2033-03-06	No	4	A	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	2,500	Indirect	By You Jin Lee (spouse)

Footnotes

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.
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.