PROSPERITY BANCSHARES INC

Ticker: PB CUSIP: 743606105 Class: Common Stock

Arvest Bank Trust Division's Holding History (CIK: 0001625959)

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

Q4 2017

Shares 3,000 Value ($000) $210 Avg Close $52.36 Range $48.50 - $57.45

Q1 2017

Shares 3,000 Value ($000) $209 Avg Close $56.04 Range $50.62 - $60.04

Q4 2016

Shares 3,000 Value ($000) $215 Avg Close $48.03 Range $40.52 - $56.81

Q4 2014

Shares 5,000 Value ($000) $281 Avg Close $41.63 Range $38.80 - $44.86

Q3 2014

Shares 5,000 Value ($000) $286 Avg Close $43.78 Range $40.91 - $46.57

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	3,000	$210	$52.36	$48.50 - $57.45
Q1 2017	3,000	$209	$56.04	$50.62 - $60.04
Q4 2016	3,000	$215	$48.03	$40.52 - $56.81
Q4 2014	5,000	$281	$41.63	$38.80 - $44.86
Q3 2014	5,000	$286	$43.78	$40.91 - $46.57