BLACK BOX CORP DEL

CUSIP: 091826107 Class: COMMON STOCK

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q4 2012
Shares 4,000 Value ($000) $97 Avg Close — Range —
Q3 2012
Shares 4,000 Value ($000) $102 Avg Close — Range —
Q2 2012
Shares 4,000 Value ($000) $115 Avg Close — Range —
Q1 2012
Shares 4,000 Value ($000) $102 Avg Close — Range —
Q4 2011
Shares 4,000 Value ($000) $112 Avg Close — Range —
Q3 2011
Shares 4,000 Value ($000) $85 Avg Close — Range —
Q2 2011
Shares 4,000 Value ($000) $125 Avg Close — Range —
Q1 2011
Shares 4,000 Value ($000) $141 Avg Close — Range —
Q4 2010
Shares 4,000 Value ($000) $153 Avg Close — Range —
Q1 2010
Shares 4,000 Value ($000) $123 Avg Close — Range —
Q4 2009
Shares 34,000 Value ($000) $964 Avg Close — Range —
Q3 2009
Shares 34,000 Value ($000) $853 Avg Close — Range —
Q2 2009
Shares 34,000 Value ($000) $1,138 Avg Close — Range —
Q1 2009
Shares 24,000 Value ($000) $567 Avg Close — Range —