HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

CIBC WORLD MARKET INC.'s Holding History (CIK: 0001421224)

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

Q1 2022
Shares 192,353 Value ($000) $4,041 Avg Close — Range —
Q4 2021
Shares 169,985 Value ($000) $2,737 Avg Close — Range —
Q3 2021
Shares 146,478 Value ($000) $1,967 Avg Close — Range —