BLACKBOARD INC

CUSIP: 091935502 Class: COMMON STOCK

HUNTINGTON NATIONAL BANK's Holding History (CIK: 0000049205)

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

Q1 2011
Shares 208 Value ($000) $8 Avg Close — Range —
Q4 2010
Shares 1,995 Value ($000) $82 Avg Close — Range —
Q3 2010
Shares 1,995 Value ($000) $72 Avg Close — Range —
Q2 2010
Shares 2,612 Value ($000) $98 Avg Close — Range —
Q1 2010
Shares 2,613 Value ($000) $109 Avg Close — Range —
Q4 2009
Shares 2,613 Value ($000) $119 Avg Close — Range —
Q3 2009
Shares 3,885 Value ($000) $147 Avg Close — Range —
Q2 2009
Shares 3,919 Value ($000) $113 Avg Close — Range —
Q1 2009
Shares 3,919 Value ($000) $124 Avg Close — Range —