HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2021
Shares 21,400 Value ($000) $345 Avg Close — Range —
Q3 2021
Shares 26,200 Value ($000) $352 Avg Close — Range —
Q2 2021
Shares 35,800 Value ($000) $395 Avg Close — Range —