IRONWOOD PHARMACEUTI

CUSIP: 46333X10 Class: COM CL A

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q3 2016
Shares 548,296 Value ($000) $8,707 Avg Close — Range —
Q3 2013
Shares 15,156 Value ($000) $180 Avg Close — Range —