PROSPERITY BANCSHARES INC

Ticker: PB CUSIP: 743606105 Class: Common Stock

CONGRESS ASSET MANAGEMENT CO /MA's Holding History (CIK: 0000897378)

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

Q3 2018

Shares 35,186 Value ($000) $2,440 Avg Close $57.25 Range $53.45 - $60.59

Q2 2018

Shares 66,299 Value ($000) $4,532 Avg Close $57.72 Range $53.48 - $60.82

Q1 2018

Shares 68,399 Value ($000) $4,968 Avg Close $59.04 Range $54.26 - $62.33

Q4 2017

Shares 66,999 Value ($000) $4,695 Avg Close $52.36 Range $48.50 - $57.45

Q3 2017

Shares 60,714 Value ($000) $3,991 Avg Close $48.81 Range $43.48 - $51.97

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	35,186	$2,440	$57.25	$53.45 - $60.59
Q2 2018	66,299	$4,532	$57.72	$53.48 - $60.82
Q1 2018	68,399	$4,968	$59.04	$54.26 - $62.33
Q4 2017	66,999	$4,695	$52.36	$48.50 - $57.45
Q3 2017	60,714	$3,991	$48.81	$43.48 - $51.97