HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

FIRST MANHATTAN CO. LLC.'s Holding History (CIK: 0000728083)

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

Q3 2018
Shares 81,000 Value ($000) $567 Avg Close — Range —
Q2 2018
Shares 40,000 Value ($000) $306 Avg Close — Range —