BLACK BOX CORP DEL

CUSIP: 091826107 Class: COMMON STOCK

MUFG Americas Holdings Corp's Holding History (CIK: 0001011659)

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

Q3 2011
Shares 11,036 Value ($000) $236 Avg Close — Range —
Q2 2011
Shares 11,036 Value ($000) $345 Avg Close — Range —
Q1 2011
Shares 11,036 Value ($000) $388 Avg Close — Range —
Q4 2010
Shares 11,036 Value ($000) $423 Avg Close — Range —