0000950123-15-006045.txt : 20150514 0000950123-15-006045.hdr.sgml : 20150514 20150514165432 ACCESSION NUMBER: 0000950123-15-006045 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20150331 FILED AS OF DATE: 20150514 DATE AS OF CHANGE: 20150514 EFFECTIVENESS DATE: 20150514 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: 15863710 BUSINESS ADDRESS: STREET 1: 1000 WINTER STREET STREET 2: SUITE 3350 CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: 7812900770 MAIL ADDRESS: STREET 1: 1000 WINTER STREET STREET 2: SUITE 3350 CITY: WALTHAM STATE: MA ZIP: 02451 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001295438 XXXXXXXX 03-31-2015 03-31-2015 Polaris Venture Management Co IV LLC

1000 Winter Street Suite 3350 Waltham MA 02451

13F HOLDINGS REPORT 028-16007 N John Gannon 855-787-3500 /s/ John Gannon Waltham MA 05-14-2015 0 3 119931 false INFORMATION TABLE 2 form13fInfoTable.xml INFORMATION TABLE FOR FORM 13F Acceleron Pharma Inc Common Stock 00434H108 91207 2396389 SH SOLE 2396389 0 0 Alimera Sciences Inc Common Stock 016259103 15773 3148355 SH SOLE 3148355 0 0 Cerulean Pharma Inc Common Stock 15708Q105 12951 1437441 SH SOLE 1437441 0 0