<SEC-DOCUMENT>0000899243-17-027015-index.html : 20171120
<SEC-HEADER>0000899243-17-027015.hdr.sgml : 20171120
<ACCEPTANCE-DATETIME>20171120174232
ACCESSION NUMBER:		0000899243-17-027015
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171120
FILED AS OF DATE:		20171120
DATE AS OF CHANGE:		20171120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Anna-Maria & Stephen Kellen Foundation, Inc.
		CENTRAL INDEX KEY:			0001722602
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38295
		FILM NUMBER:		171214908

	BUSINESS ADDRESS:	
		STREET 1:		1345 AVENUE OF THE AMERICAS, 48TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10104
		BUSINESS PHONE:		212-698-3204

	MAIL ADDRESS:	
		STREET 1:		1345 AVENUE OF THE AMERICAS, 48TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10104

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Arsanis, Inc.
		CENTRAL INDEX KEY:			0001501697
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				273181608
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		890 WINTER STREET, SUITE 230
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		781-819-5704

	MAIL ADDRESS:	
		STREET 1:		890 WINTER STREET, SUITE 230
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
Document 1 - file: doc4.html

Document 1 - RAW XML: doc4.xml

</DOCUMENT>
</SEC-DOCUMENT>