MPM ASSET MANAGEMENT LLC

Q4 2013 13F Holdings Report, Stock Holdings

Signature - Title
Christopher Wolf - Chief Financial Officer
Location
Boston, MA
Holdings as of
December 31, 2013
Value $
$310M
Num holdings
12
Date filed
1/23/2014, 01:03 PM
Description
All US holdings of this investor are reported in this report. The Form 13F report requires disclosure of the manager that files the report, the name and class of the security, the CUSIP code, the number of shares as of the end of the calendar quarter for which the report is filed, and the total market value. The market value column should not be used as a substitute for Assets Under Management (AUM), as it does not include cash held in accounts.
Next filing
Q1 2014 - May 8, 2014
Sym Weight Trade Impact Company Class Shares Change Activity Value Change $ Value $ * Price $ Shares Principal
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.

Person Signing this Report on Behalf of Reporting Manager:

Name Title City, State Date
Ansbert Gadicke Member Boston, Massachusetts 1/23/2014