HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

GAM Holding AG's Holding History (CIK: 0001438848)

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

Q2 2015
Shares 58,400 Value ($000) $1,472 Avg Close — Range —
Q1 2015
Shares 56,800 Value ($000) $1,334 Avg Close — Range —