<SEC-DOCUMENT>0001193805-17-000116-index.html : 20170208
<SEC-HEADER>0001193805-17-000116.hdr.sgml : 20170208
<ACCEPTANCE-DATETIME>20170208060250
ACCESSION NUMBER:		0001193805-17-000116
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170208
DATE AS OF CHANGE:		20170208
GROUP MEMBERS:		DEERFIELD INTERNATIONAL MASTER FUND, L.P.
GROUP MEMBERS:		DEERFIELD MANAGEMENT COMPANY, L.P.
GROUP MEMBERS:		DEERFIELD MGMT, L.P.
GROUP MEMBERS:		DEERFIELD PARTNERS, L.P.
GROUP MEMBERS:		DEERFIELD SPECIAL SITUATIONS FUND, L.P.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ANAPTYSBIO INC
		CENTRAL INDEX KEY:			0001370053
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				203828755
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-89797
		FILM NUMBER:		17580831

	BUSINESS ADDRESS:	
		STREET 1:		10421 PACIFIC CENTER COURT, SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		858-362-6295

	MAIL ADDRESS:	
		STREET 1:		10421 PACIFIC CENTER COURT, SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ANAPTYS BIOSCIENCES INC
		DATE OF NAME CHANGE:	20060724

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Flynn James E
		CENTRAL INDEX KEY:			0001352546

	FILING VALUES:
		FORM TYPE:		SC 13G

	MAIL ADDRESS:	
		STREET 1:		780 THIRD AVENUE
		STREET 2:		37TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>e615722_sc13g-anaptysbio.htm
<TEXT>
Document 1 - file: e615722_sc13g-anaptysbio.htm

</DOCUMENT>
</SEC-DOCUMENT>