ACCELERON PHARMA INC

CUSIP: 00434H108 Class: COMMON STOCK

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

Note: Option positions (PUT/CALL) are excluded.

Q2 2014
Shares 8,364 Value ($000) $284 Avg Close — Range —
Q1 2014
Shares 11,458 Value ($000) $395 Avg Close — Range —