HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

HARBOUR INVESTMENTS, INC.'s Holding History (CIK: 0000810121)

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

Q2 2021
Shares 1,000 Value ($000) $11 Avg Close — Range —
Q1 2021
Shares 1,000 Value ($000) $8 Avg Close — Range —