HORSEHEAD HLDG CORP

CUSIP: 440694305 Class: COM

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

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

Q4 2015
Shares 42,433 Value ($000) $87 Avg Close — Range —
Q3 2015
Shares 254,900 Value ($000) $775 Avg Close — Range —
Q4 2014
Shares 69,209 Value ($000) $1,096 Avg Close — Range —