PROSPERITY BANCSHARES INC

Ticker: PB CUSIP: 743606105 Class: Common Stock

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

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

Q4 2013
Shares 39,740 Value ($000) $2,519 Avg Close $45.63 Range $44.19 - $47.30
Q3 2013
Shares 39,740 Value ($000) $2,458 Avg Close $42.75 Range $37.32 - $44.78
Q2 2013
Shares 39,740 Value ($000) $2,058 Avg Close $34.46 Range $31.76 - $37.71
Q1 2013
Shares 39,740 Value ($000) $1,883 Avg Close $32.75 Range $30.23 - $34.08
Q4 2012
Shares 39,740 Value ($000) $1,669 Avg Close — Range —
Q3 2012
Shares 39,840 Value ($000) $1,698 Avg Close — Range —
Q2 2012
Shares 25,730 Value ($000) $1,081 Avg Close — Range —
Q1 2012
Shares 24,630 Value ($000) $1,128 Avg Close — Range —
Q4 2011
Shares 24,430 Value ($000) $986 Avg Close — Range —
Q3 2011
Shares 24,430 Value ($000) $798 Avg Close — Range —
Q2 2011
Shares 24,530 Value ($000) $1,075 Avg Close — Range —
Q1 2011
Shares 24,630 Value ($000) $1,053 Avg Close — Range —
Q4 2010
Shares 24,630 Value ($000) $967 Avg Close — Range —
Q1 2010
Shares 24,730 Value ($000) $1,014 Avg Close — Range —
Q4 2009
Shares 24,730 Value ($000) $1,001 Avg Close — Range —
Q3 2009
Shares 24,830 Value ($000) $864 Avg Close — Range —
Q2 2009
Shares 24,830 Value ($000) $741 Avg Close — Range —
Q1 2009
Shares 24,830 Value ($000) $679 Avg Close — Range —