HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q1 2022
Shares 4,081,419 Value ($000) $85,750 Avg Close — Range —
Q4 2021
Shares 14,119,581 Value ($000) $227,326 Avg Close — Range —
Q3 2021
Shares 15,563,153 Value ($000) $209,013 Avg Close — Range —
Q2 2021
Shares 15,709,018 Value ($000) $173,428 Avg Close — Range —
Q1 2021
Shares 15,932,129 Value ($000) $121,403 Avg Close — Range —
Q4 2020
Shares 16,016,561 Value ($000) $53,334 Avg Close — Range —
Q3 2020
Shares 14,853,560 Value ($000) $25,697 Avg Close — Range —
Q2 2020
Shares 15,368,957 Value ($000) $27,818 Avg Close — Range —
Q1 2020
Shares 15,361,964 Value ($000) $28,881 Avg Close — Range —
Q4 2019
Shares 15,057,858 Value ($000) $94,111 Avg Close — Range —
Q3 2019
Shares 13,979,902 Value ($000) $74,513 Avg Close — Range —
Q2 2019
Shares 13,326,296 Value ($000) $76,759 Avg Close — Range —
Q1 2019
Shares 10,996,780 Value ($000) $79,947 Avg Close — Range —
Q4 2018
Shares 7,344,305 Value ($000) $65,071 Avg Close — Range —
Q3 2018
Shares 3,549,370 Value ($000) $24,846 Avg Close — Range —
Q2 2018
Shares 2,687,424 Value ($000) $20,559 Avg Close — Range —