0000950123-20-008316.txt : 20200812
0000950123-20-008316.hdr.sgml : 20200812
20200812121941
ACCESSION NUMBER: 0000950123-20-008316
CONFORMED SUBMISSION TYPE: 13F-HR
PUBLIC DOCUMENT COUNT: 2
CONFORMED PERIOD OF REPORT: 20200630
FILED AS OF DATE: 20200812
DATE AS OF CHANGE: 20200812
EFFECTIVENESS DATE: 20200812
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: 201094832
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
0001263048
XXXXXXXX
06-30-2020
06-30-2020
false
MPM ASSET MANAGEMENT LLC
450 KENDALL STREET
CAMBRIDGE
MA
02142
13F HOLDINGS REPORT
028-13379
N
Ansbert Gadicke
Member
(617) 425-9200
/s/Ansbert Gadicke
Cambridge
MA
08-12-2020
0
6
336081
false
INFORMATION TABLE
2
1123.xml
INFORMATION TABLE FOR FORM 13F
Chiasma, Inc.
Common
16706W102
30861
5736296
SH
SOLE
5736296
0
0
Harpoon Therapeutics, Inc.
Common
41358P106
75105
4524425
SH
SOLE
4524425
0
0
Repare Therapeutics, Inc.
Common
760273102
93177
3003772
SH
SOLE
3003772
0
0
Rhythm Pharmaceuticals, Inc.
Common
76243J105
42576
1909258
SH
SOLE
1909258
0
0
Syndax Pharmaceuticals, Inc.
Common
87164F105
32140
2168691
SH
SOLE
2168691
0
0
TCR2 Therapeutics, Inc.
Common
87808K106
62221
4050865
SH
SOLE
4050865
0
0