Mpm Asset Management Llc

Q4 2013 13F Holdings Report, Stock Holdings

Signature - Title: Ansbert Gadicke - Member
Location: Boston, MA
Holdings as of: 31 Dec 2013
Value $: $310M
Num holdings: 12
Date filed: 23 Jan 2014, 13:03
Form type: 13F-HR
Description: All US holdings of this investor are reported in this report. Top holdings included PETX, PTLA, EPZM, MGNX, and PIP.
Next filing: Q1 2014 - 08 May 2014
SEC: View on sec.gov

Sym	Weight	Trade Impact	Company	Class	Shares Change	Activity	Value Change $	Value $	* Price $	Shares	Principal

Compare Q4 2013 to

* 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	23 Jan 2014