HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

Virtu Financial LLC's Holding History (CIK: 0001533964)

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

Q2 2021
Shares 12,322 Value ($000) $136 Avg Close — Range —
Q3 2018
Shares 10,470 Value ($000) $73 Avg Close — Range —
Q4 2017
Shares 43,221 Value ($000) $402 Avg Close — Range —