Analyst Coverage

Firm Analyst
Barclays   Geoff Meacham, Ph.D.
Citi   Robyn Karnauskas
Credit Suisse   Kennen MacKay, Ph.D.
FBR Capital Markets   Ed White
JMP Securities   Michael G. King, Jr.
Janney   Debjit Chattopadhyay, Ph.D., MBA
Leerink   Geoffrey C. Porges, MBBS
Morgan Stanley   Andrew Berens, M.D.
Oppenheimer   Leah Cann
Piper Jaffray   Edward A. Tenthoff

Acceleron Pharma Inc. is followed by the analyst(s) listed above. Please note that any opinions, estimates or forecasts regarding Acceleron Pharma Inc.'s performance made by these analysts are theirs alone and do not represent opinions, forecasts or predictions of Acceleron Pharma Inc. or its management. Acceleron Pharma Inc. does not by its reference above or distribution imply its endorsement of or concurrence with such information, conclusions or recommendations.