HORSEHEAD HLDG CORP

CUSIP: 440694305 Class: COM

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

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

Q3 2015
Shares 64,160 Value ($000) $195 Avg Close — Range —
Q2 2015
Shares 175,860 Value ($000) $2,060 Avg Close — Range —
Q1 2015
Shares 175,860 Value ($000) $2,226 Avg Close — Range —
Q4 2014
Shares 175,860 Value ($000) $2,784 Avg Close — Range —
Q3 2014
Shares 194,090 Value ($000) $3,208 Avg Close — Range —
Q2 2014
Shares 84,290 Value ($000) $1,539 Avg Close — Range —