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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1370053	Anaptysbio Inc	ANAB	()	4

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1311643	J Kevin Kinsella	C/O Avalon Ventures Vii, L.p. 1134 Kline Street La Jolla CA 92037	No	No	Yes	Yes
1318999	P L Vii Ventures Avalon	1134 Kline Street La Jolla CA 92037	No	No	Yes	No
1380392	Avalon Ventures Vii Gp, Llc	C/O Avalon Ventures Vii, L.p. 1134 Kline Street La Jolla CA	No	No	Yes	Yes
1695652	Lawrence Stephen Tomlin	C/O Avalon Ventures Vii, L.p. 1134 Kline Street La Jolla CA 92037	No	No	Yes	Yes

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	Disposition	2017-07-26	399,987	$0.00	1,636,945	No	4	J	Indirect	See footnote
Common Stock	Acquisiton	2017-07-26	37,040	$0.00	37,040	No	4	J	Indirect	See footnote
Common Stock	Disposition	2017-07-26	37,040	$24.35	0	No	4	S	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	J	Indirect	See footnote
No	4	J	Indirect	See footnote
No	4	S	Indirect	See footnote

Footnotes

Represents a pro-rata in-kind distribution of Common Stock by Avalon Ventures VII, L.P. effected on July 26, 2017 without consideration to its limited partners and to its general partner, Avalon Ventures VII GP, LLC.
Represents the receipt by Avalon Ventures VII GP, LLC, the general partner of Avalon Ventures VII, L.P., of its pro-rata portion of the in-kind distribution described in footnote 1.
Represents the open-market sale by Avalon Ventures VII GP, LLC, the general partner of Avalon Ventures VII, L.P., of the Common Stock received as a result of the in-kind distribution described in footnote 1.