HORSEHEAD HLDG CORP

CUSIP: 440694305 Class: COM

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q4 2014
Shares 12,900 Value ($000) $204 Avg Close — Range —
Q3 2014
Shares 12,900 Value ($000) $213 Avg Close — Range —
Q2 2014
Shares 14,600 Value ($000) $267 Avg Close — Range —
Q1 2014
Shares 15,400 Value ($000) $259 Avg Close — Range —
Q4 2013
Shares 15,400 Value ($000) $250 Avg Close — Range —
Q3 2013
Shares 15,400 Value ($000) $192 Avg Close — Range —
Q2 2013
Shares 15,400 Value ($000) $197 Avg Close — Range —