HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q4 2021
Shares 41,012 Value ($000) $660 Avg Close — Range —
Q2 2019
Shares 370,112 Value ($000) $2,131 Avg Close — Range —
Q1 2019
Shares 370,112 Value ($000) $2,690 Avg Close — Range —