HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q2 2015
Shares 15,321 Value ($000) $387 Avg Close — Range —
Q1 2015
Shares 15,021 Value ($000) $353 Avg Close — Range —