HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R10 Class: COMM

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

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

Q3 2016
Shares 24,900 Value ($000) $334 Avg Close — Range —
Q1 2016
Shares 84,557 Value ($000) $1,686 Avg Close — Range —
Q4 2015
Shares 69,800 Value ($000) $1,520 Avg Close — Range —
Q3 2015
Shares 138,051 Value ($000) $3,479 Avg Close — Range —
Q2 2015
Shares 138,051 Value ($000) $3,479 Avg Close — Range —