WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

BOKF, NA's Holding History (CIK: 0000009634)

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

Q2 2015
Shares 5,267 Value ($000) $267 Avg Close $32.83 Range $29.86 - $37.32
Q1 2015
Shares 5,429 Value ($000) $235 Avg Close $30.86 Range $28.78 - $34.76
Q3 2014
Shares 5,344 Value ($000) $249 Avg Close $33.99 Range $32.17 - $37.33
Q2 2014
Shares 5,397 Value ($000) $282 Avg Close $35.20 Range $33.12 - $38.02
Q1 2014
Shares 6,497 Value ($000) $351 Avg Close $35.67 Range $33.22 - $38.53
Q4 2013
Shares 6,497 Value ($000) $367 Avg Close $36.29 Range $32.69 - $39.26
Q3 2013
Shares 5,837 Value ($000) $290 Avg Close $32.64 Range $30.72 - $34.37
Q2 2013
Shares 5,857 Value ($000) $268 Avg Close $29.77 Range $27.86 - $31.27