ZAFGEN INC

CUSIP: 98885E103 Class: Cmn

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q3 2015
Shares 411,859 Value ($000) $13,159 Avg Close — Range —
Q2 2015
Shares 412,280 Value ($000) $14,277 Avg Close — Range —
Q1 2015
Shares 325,231 Value ($000) $12,883 Avg Close — Range —