ZAFGEN INC

CUSIP: 98885E103 Class: Cmn

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q1 2015
Shares 6,245 Value ($000) $247 Avg Close — Range —
Q4 2014
Shares 20,425 Value ($000) $630 Avg Close — Range —
Q3 2014
Shares 16,485 Value ($000) $324 Avg Close — Range —