Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000898432-17-001046
Filing Date
2017-11-15
Accepted
2017-11-15 17:40:50
Documents
1
Period of Report
2017-11-15

Document Format Files

Seq Description Document Type Size
1 form3.html 3  
1 form3.xml 3 2707
  Complete submission text file 0000898432-17-001046.txt   4201
Mailing Address 890 WINTER STREET, SUITE 230 WALTHAM MA 02451
Business Address 890 WINTER STREET, SUITE 230 WALTHAM MA 02451 781-819-5704
Arsanis, Inc. (Issuer) CIK: 0001501697 (see all company filings)

EIN.: 273181608 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2836 Biological Products, (No Diagnostic Substances)

Mailing Address P.O. BOX 23350 SEATTLE WA 98102
Business Address 500 5TH AVE NORTH SEATTLE WA 98109 206-709-3100
Bill & Melinda Gates Foundation (Reporting) CIK: 0001663801 (see all company filings)

State of Incorp.: WA | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38295 | Film No.: 171206147