HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

Mirae Asset Global Investments Co., Ltd.'s Holding History (CIK: 0001569395)

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

Q4 2021
Shares 10,684 Value ($000) $172 Avg Close — Range —
Q3 2021
Shares 12,509 Value ($000) $168 Avg Close — Range —
Q2 2021
Shares 15,848 Value ($000) $175 Avg Close — Range —
Q1 2021
Shares 17,135 Value ($000) $131 Avg Close — Range —