0000950123-14-010421.txt : 20141023 0000950123-14-010421.hdr.sgml : 20141023 20141023102841 ACCESSION NUMBER: 0000950123-14-010421 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20140930 FILED AS OF DATE: 20141023 DATE AS OF CHANGE: 20141023 EFFECTIVENESS DATE: 20141023 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MPM ASSET MANAGEMENT LLC CENTRAL INDEX KEY: 0001263048 IRS NUMBER: 043351032 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-13379 FILM NUMBER: 141169063 BUSINESS ADDRESS: STREET 1: THE JOHN HANCOCK TOWER STREET 2: 200 CLARENDON STREET, 54TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 6174259200 MAIL ADDRESS: STREET 1: THE JOHN HANCOCK TOWER STREET 2: 200 CLARENDON STREET, 54TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001263048 XXXXXXXX 09-30-2014 09-30-2014 MPM ASSET MANAGEMENT LLC

THE JOHN HANCOCK TOWER 200 CLARENDON STREET, 54TH FLOOR BOSTON MA 02116

13F HOLDINGS REPORT 028-13379 N Ansbert Gadicke (617) 425-9200 /s/ Ansbert Gadicke Boston MA 10-23-2014 0 13 305576 false INFORMATION TABLE 2 form13fInfoTable.xml INFORMATION TABLE FOR FORM 13F Aratana Therapeutics Inc. Common 03874P101 21273 2118845 SH SOLE 2118845 0 0 Celladon Corporation Common 15117E107 11163 1067236 SH SOLE 1067236 0 0 Conatus Pharmaceuticals, Inc. Common 20600T108 7296 1192080 SH SOLE 1192080 0 0 EnteroMedics, Inc. Common 29365M208 1369 1113168 SH SOLE 1113168 0 0 EpiZyme, Inc. Common 29428V104 65439 2413819 SH SOLE 2413819 0 0 MacroGenics, Inc. Common 556099109 66 3168 SH SOLE 3168 0 0 Mast Therapeutics, Inc. Common 576314108 1429 2551851 SH SOLE 2551851 0 0 PharmAthene, Inc. Common 71714G102 11299 6347614 SH SOLE 6347614 0 0 Portola Pharmaceuticals, Inc. Common 737010108 30859 1220672 SH SOLE 1220672 0 0 Radius Health, Inc. Common 750469207 122456 5831253 SH SOLE 5831253 0 0 Sangamo Biosciences, Inc. Common 800677106 243 22487 SH SOLE 22487 0 0 Trivascular Technologies, Inc. Common 89685A102 25727 1776692 SH SOLE 1776692 0 0 Verastem, Inc. Common 92337C104 6958 816683 SH SOLE 816683 0 0