ACCELERON PHARMA INC

CUSIP: 00434H108 Class: COMMON STOCK

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q1 2015
Shares 57,715 Value ($000) $2,197 Avg Close — Range —
Q4 2014
Shares 196,387 Value ($000) $7,651 Avg Close — Range —
Q3 2014
Shares 99,541 Value ($000) $3,010 Avg Close — Range —
Q2 2014
Shares 164,282 Value ($000) $5,581 Avg Close — Range —
Q1 2014
Shares 124,001 Value ($000) $4,278 Avg Close — Range —
Q4 2013
Shares 197,219 Value ($000) $7,810 Avg Close — Range —
Q3 2013
Shares 195,402 Value ($000) $4,344 Avg Close — Range —