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Filing Details

Accession Number:: 0000903423-19-000272
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2019-07-02 17:11:32
Reporting Period:: 2019-07-01

Accepted Time:: 2019-07-02 17:11:32
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1478320	Adaptive Biotechnologies Corp	ADPT	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1103804	Viking Global Investors Lp	55 Railroad Avenue Greenwich CT 06830	No	No	Yes	No
1133006	Andreas Ole Halvorsen	55 Railroad Avenue Greenwich CT 06830	No	No	Yes	No
1621842	C. David Ott	55 Railroad Avenue Greenwich CT 06830	No	No	Yes	No
1629472	Viking Global Opportunities Portfolio Gp Llc	55 Railroad Avenue Greenwich CT 06830	No	No	Yes	No
1629476	Viking Global Opportunities Gp Llc	55 Railroad Avenue Greenwich CT 06830	No	No	Yes	No
1629482	Viking Global Opportunities Illiquid Investments Sub-Master Lp	55 Railroad Avenue Greenwich CT 06830	No	No	Yes	No
1711393	Sharon Rose Shabet	55 Railroad Avenue Greenwich CT 06830	No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2019-07-01	250,000	$20.00	1,675,000	No	4	P	Indirect	See explanation of responses
Common Stock	Acquisiton	2019-07-01	18,908,945	$0.00	20,583,945	No	4	C	Indirect	See explanation of responses
Common Stock	Acquisiton	2019-07-01	15,524,350	$0.00	36,108,295	No	4	C	Indirect	See explanation of responses
Common Stock	Acquisiton	2019-07-01	2,007,740	$0.00	38,116,035	No	4	C	Indirect	See explanation of responses
Common Stock	Acquisiton	2019-07-01	290,572	$0.00	38,406,607	No	4	C	Indirect	See explanation of responses

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	See explanation of responses
No	4	C	Indirect	See explanation of responses
No	4	C	Indirect	See explanation of responses
No	4	C	Indirect	See explanation of responses
No	4	C	Indirect	See explanation of responses

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series D Preferred Stock	Disposition	2019-07-01	18,908,945	$0.00	18,908,945	$0.00
Common Stock	Series E Preferred Stock	Disposition	2019-07-01	15,524,350	$0.00	15,524,350	$0.00
Common Stock	Series F Preferred Stock	Disposition	2019-07-01	2,007,740	$0.00	2,007,740	$0.00
Common Stock	Series F-1 Preferred Stock	Disposition	2019-07-01	290,572	$0.00	290,572	$0.00

Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect

Footnotes

On July 1, 2019, the Viking Funds (defined below) acquired an aggregate of 250,000 shares of common stock of the Issuer ("Common Stock") at a price of $20 per share in connection with the Issuer's initial public offering ("IPO"). VGEM acquired 173,010 shares in the IPO, VGE II acquired 3,531 shares in the IPO, VLFM acquired 64,122 shares in the IPO and Opportunities Fund acquired 9,337 shares in the IPO.
On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.
O. Andreas Halvorsen, David C. Ott and Rose S. Shabet are Executive Committee members of certain management entities, including Viking Global Partners LLC, the general partner of Viking Global Investors LP ("VGI"), Viking Global Performance LLC ("VGP"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").
VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.
VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.
VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.
VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.
Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.
The Reporting Persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.