0000950123-16-015132.txt : 20160216 0000950123-16-015132.hdr.sgml : 20160215 20160216170722 ACCESSION NUMBER: 0000950123-16-015132 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20151231 FILED AS OF DATE: 20160216 DATE AS OF CHANGE: 20160216 EFFECTIVENESS DATE: 20160216 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Polaris Venture Management Co IV LLC CENTRAL INDEX KEY: 0001295438 IRS NUMBER: 043571021 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-16007 FILM NUMBER: 161430082 BUSINESS ADDRESS: STREET 1: ONE MARINA PARK DRIVE STREET 2: 10TH FLOOR CITY: BOSTON STATE: MA ZIP: 02210 BUSINESS PHONE: 7812900770 MAIL ADDRESS: STREET 1: ONE MARINA PARK DRIVE STREET 2: 10TH FLOOR CITY: BOSTON STATE: MA ZIP: 02210 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001295438 XXXXXXXX 12-31-2015 12-31-2015 Polaris Venture Management Co IV LLC

ONE MARINA PARK DRIVE 10TH FLOOR BOSTON MA 02210

13F HOLDINGS REPORT 028-16007 N Mary Blair 855-787-3500 /s/ Mary Blair Boston MA 02-16-2016 0 4 90498 false INFORMATION TABLE 2 form13fInfoTable.xml INFORMATION TABLE FOR FORM 13F Acceleron Pharma Inc Common Stock 00434H108 72168 1480060 SH SOLE 1480060 0 0 Alimera Sciences Inc Common Stock 016259103 7619 3148355 SH SOLE 3148355 0 0 Cerulean Pharma Inc Common Stock 15708Q105 4025 1437441 SH SOLE 1437441 0 0 Pulmatrix Inc Common Stock 74584P103 6686 1591862 SH SOLE 1591862 0 0