MPM ASSET MANAGEMENT LLC Information

THE JOHN HANCOCK TOWER, BOSTON, Massachusetts, 02116, (617) 425-9200

Report Date: 12/31/2013

Position Statistics

Total Positions 13
New Positions 2
Increased Positions 2
Decreased Positions 3
Positions with Activity 5
Sold Out Positions 1
Total Mkt Value (in $ millions) 254

Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.

Sector Weighting

Basic Materials
Capital Goods
Conglomerates 2.39%
Consumer Cyclical
Consumer/Non-Cyclical
Energy
Financial
Healthcare 11.71%
Services
Technology
Transportation
Utilities

13 Positions as of 12/31/2013

Company Class Value of Shares ($1,000s) ▼ Change in Value ($1,000s) Change (%) Shares Held
ARATANA THERAPEUTICS INC COM 60,741 New 4,351,048
EPIZYME INC COM 57,350 New 2,880,485
PORTOLA PHARMACEUTICALS INC COM 57,323 New 2,441,344
MACROGENICS INC COM 35,655 35,655 New 1,780,955
VERASTEM INC COM 9,186 New 1,033,324
PHARMATHENE INC COM 9,014 New 6,347,614
CONATUS PHARMACEUTICALS INC COM 7,200 New 1,192,080
PACIRA PHARMACEUTICALS INC COM 6,605 -47,837 (87.87) 100,000
KALOBIOS PHARMACEUTICALS INC COM 6,082 New 2,632,928
ENTEROMEDICS INC COM NEW 2,788 New 1,669,753
AVEO PHARMACEUTICALS INC COM 1,839 -1,121 (37.88) 1,372,118
SANGAMO BIOSCIENCES INC COM 315 315 New 22,487
ZALICUS INC COM NEW -1,123 Sold Out 0