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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1478320	Adaptive Biotechnologies Corp	ADPT	()	4/A

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1402017	J Michael Pellini	C/O Adaptive Biotechnologies Corp. Suite 200 Seattle WA 98102		Yes	No	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	2021-03-01	20,000	$6.55	21,504	No	4	M	Direct
Common Stock	Disposition	2021-03-01	20,000	$57.80	1,504	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	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)	Disposition	2021-03-01	20,000	$0.00	20,000	$6.55

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
55,000		2028-02-07	No	4	M	Direct

Footnotes

The price reported for this transaction is a weighted-average price. The shares were sold in multiple transactions ranging from $57.75 to 58.19, inclusive. The reporting person undertakes to provide to Adaptive Biotechnologies Corporation, any security holder of Adaptive Biotechnologies Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in any footnotes to this Form 4.
The options vested with respect to 1/4 of such shares on February 7, 2019, with 1/48 of such shares vesting thereafter at the end of each full month of continuous service until fully vested.