0000950123-17-005003.txt : 20170515 0000950123-17-005003.hdr.sgml : 20170515 20170515075103 ACCESSION NUMBER: 0000950123-17-005003 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20170331 FILED AS OF DATE: 20170515 DATE AS OF CHANGE: 20170515 EFFECTIVENESS DATE: 20170515 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: 17841106 BUSINESS ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 6174259200 MAIL ADDRESS: STREET 1: 450 KENDALL STREET CITY: CAMBRIDGE STATE: MA ZIP: 02142 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0001263048 XXXXXXXX 03-31-2017 03-31-2017 MPM ASSET MANAGEMENT LLC

450 KENDALL STREET CAMBRIDGE MA 02142

13F HOLDINGS REPORT 028-13379 N Ansbert Gadicke (617) 425-9200 /s/ Ansbert Gadicke Cambridge MA 05-12-2017 0 8 207889 false INFORMATION TABLE 2 form13fInfoTable.xml INFORMATION TABLE FOR FORM 13F Aratana Therapeutics Inc. Common 03874P101 1325 250000 SH SOLE 250000 0 0 Chiasma, Inc. Common 16706W102 9752 5736296 SH SOLE 5736296 0 0 Conatus Pharmaceuticals, Inc. Common 20600T108 6878 1192080 SH SOLE 1192080 0 0 Endologix, Inc. Common 29266S106 8119 1121447 SH SOLE 1121447 0 0 Proteon Therapeutics, Inc. Common 74371L109 1721 983381 SH SOLE 983381 0 0 Radius Health, Inc. Common 750469207 150252 3887502 SH SOLE 3887502 0 0 Syndax Pharmaceuticals, Inc. Common 87164F105 29754 2168691 SH SOLE 2168691 0 0 Valeritas Holdings, Inc. Common 91914N202 88 12275 SH SOLE 12275 0 0