HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

NATIXIS ADVISORS, L.P.'s Holding History (CIK: 0001018331)

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

Q3 2016
Shares 181,702 Value ($000) $2,436 Avg Close — Range —
Q2 2016
Shares 194,583 Value ($000) $3,041 Avg Close — Range —
Q1 2016
Shares 198,807 Value ($000) $3,964 Avg Close — Range —
Q4 2015
Shares 203,651 Value ($000) $4,436 Avg Close — Range —
Q3 2015
Shares 181,677 Value ($000) $3,690 Avg Close — Range —
Q2 2015
Shares 145,049 Value ($000) $3,655 Avg Close — Range —
Q1 2015
Shares 146,030 Value ($000) $3,429 Avg Close — Range —
Q4 2014
Shares 109,141 Value ($000) $2,260 Avg Close — Range —