HOUGHTON MIFFLIN HARCOURT CO

CUSIP: 44157R109 Class: COM

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q2 2019
Shares 264,352 Value ($000) $1,523 Avg Close — Range —
Q1 2019
Shares 211,000 Value ($000) $1,534 Avg Close — Range —
Q4 2018
Shares 32,600 Value ($000) $289 Avg Close — Range —