BLACKBOARD INC

CUSIP: 091935502 Class: COMMON STOCK

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

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

Q2 2011
Shares 9,535 Value ($000) $414 Avg Close — Range —
Q1 2011
Shares 7,580 Value ($000) $275 Avg Close — Range —
Q4 2010
Shares 6,305 Value ($000) $260 Avg Close — Range —