ZAFGEN INC

CUSIP: 98885E103 Class: Cmn

RA CAPITAL MANAGEMENT, L.P.'s Holding History (CIK: 0001346824)

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

Q1 2015
Shares 732,960 Value ($000) $29,033 Avg Close — Range —
Q4 2014
Shares 732,960 Value ($000) $22,604 Avg Close — Range —
Q3 2014
Shares 732,960 Value ($000) $14,403 Avg Close — Range —