WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

TWO SIGMA ADVISERS, LP's Holding History (CIK: 0001478735)

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

Q4 2025

Shares 120,900 Value ($000) $5,783 Avg Close $47.37 Range $44.09 - $50.85

Q3 2025

Shares 117,300 Value ($000) $5,864 Avg Close $48.41 Range $45.39 - $50.63

Q2 2025

Shares 87,000 Value ($000) $4,214 Avg Close $46.41 Range $40.44 - $50.21

Q1 2025

Shares 70,500 Value ($000) $3,569 Avg Close $48.88 Range $46.41 - $51.42

Q4 2024

Shares 61,600 Value ($000) $3,232 Avg Close $50.92 Range $44.42 - $57.25

Q3 2024

Shares 53,500 Value ($000) $2,644 Avg Close $47.96 Range $44.53 - $54.88

Q2 2024

Shares 57,500 Value ($000) $2,790 Avg Close $44.71 Range $41.94 - $47.91

Q1 2024

Shares 54,200 Value ($000) $2,649 Avg Close $44.93 Range $40.74 - $52.58

Q4 2023

Shares 46,900 Value ($000) $2,646 Avg Close $45.49 Range $38.59 - $53.38

Q3 2023

Shares 82,500 Value ($000) $3,568 Avg Close $40.65 Range $34.46 - $45.59

Q2 2023

Shares 121,500 Value ($000) $4,653 Avg Close $36.02 Range $31.77 - $39.59

Q1 2023

Shares 125,200 Value ($000) $5,546 Avg Close $47.96 Range $39.01 - $52.93

Q4 2022

Shares 90,400 Value ($000) $5,335 Avg Close $52.03 Range $45.87 - $56.69

Q3 2022

Shares 40,500 Value ($000) $2,118 Avg Close $50.12 Range $46.08 - $54.37

Q2 2022

Shares 8,300 Value ($000) $462 Avg Close $51.14 Range $48.47 - $53.70

Q4 2021

Shares 5,000 Value ($000) $289 Avg Close $48.46 Range $45.96 - $50.44

Q3 2021

Shares 11,100 Value ($000) $624 Avg Close $48.00 Range $45.58 - $50.22

Q2 2021

Shares 11,000 Value ($000) $638 Avg Close $52.96 Range $48.87 - $55.24

Q1 2021

Shares 5,700 Value ($000) $358 Avg Close $51.31 Range $45.76 - $56.46

Q4 2020

Shares 13,400 Value ($000) $741 Avg Close $46.10 Range $42.70 - $50.73

Q3 2020

Shares 14,400 Value ($000) $783 Avg Close $48.57 Range $43.00 - $54.06

Q2 2020

Shares 14,400 Value ($000) $827 Avg Close $48.00 Range $42.78 - $54.53

Q1 2020

Shares 14,400 Value ($000) $846 Avg Close $50.93 Range $38.54 - $56.36

Q4 2019

Shares 19,400 Value ($000) $1,315 Avg Close $53.22 Range $48.47 - $56.23

Q3 2019

Shares 22,600 Value ($000) $1,405 Avg Close $50.16 Range $47.48 - $52.86

Q2 2019

Shares 23,200 Value ($000) $1,429 Avg Close $49.98 Range $47.55 - $52.33

Q1 2019

Shares 25,500 Value ($000) $1,576 Avg Close $49.51 Range $43.81 - $52.00

Q4 2018

Shares 24,100 Value ($000) $1,342 Avg Close $46.68 Range $41.39 - $50.57

Q3 2018

Shares 26,100 Value ($000) $1,570 Avg Close $48.42 Range $42.38 - $51.15

Q2 2018

Shares 25,600 Value ($000) $1,447 Avg Close $45.23 Range $42.53 - $47.73

Q1 2018

Shares 24,200 Value ($000) $1,406 Avg Close $46.10 Range $42.86 - $48.73

Q4 2017

Shares 23,000 Value ($000) $1,370 Avg Close $45.39 Range $41.22 - $49.73

Q3 2017

Shares 23,400 Value ($000) $1,393 Avg Close $41.22 Range $37.95 - $46.20

Q2 2017

Shares 22,500 Value ($000) $1,261 Avg Close $41.48 Range $38.41 - $44.70

Q1 2017

Shares 19,400 Value ($000) $1,083 Avg Close $43.50 Range $40.27 - $48.84

Q4 2016

Shares 14,600 Value ($000) $919 Avg Close $42.49 Range $35.31 - $49.16

Q3 2016

Shares 12,521 Value ($000) $637 Avg Close $36.26 Range $34.29 - $38.21

Q2 2016

Shares 27,021 Value ($000) $1,331 Avg Close $35.72 Range $33.77 - $38.30

Q3 2015

Shares 13,121 Value ($000) $583 Avg Close $34.11 Range $30.99 - $37.49

Q2 2015

Shares 8,521 Value ($000) $432 Avg Close $32.83 Range $29.86 - $37.32

Q1 2015

Shares 8,321 Value ($000) $360 Avg Close $30.86 Range $28.78 - $34.76

Q4 2014

Shares 8,121 Value ($000) $398 Avg Close $33.70 Range $29.79 - $36.02

Q3 2014

Shares 13,121 Value ($000) $610 Avg Close $33.99 Range $32.17 - $37.33

Q2 2014

Shares 6,721 Value ($000) $351 Avg Close $35.20 Range $33.12 - $38.02

Q2 2013

Shares 8,121 Value ($000) $373 Avg Close $29.77 Range $27.86 - $31.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	120,900	$5,783	$47.37	$44.09 - $50.85
Q3 2025	117,300	$5,864	$48.41	$45.39 - $50.63
Q2 2025	87,000	$4,214	$46.41	$40.44 - $50.21
Q1 2025	70,500	$3,569	$48.88	$46.41 - $51.42
Q4 2024	61,600	$3,232	$50.92	$44.42 - $57.25
Q3 2024	53,500	$2,644	$47.96	$44.53 - $54.88
Q2 2024	57,500	$2,790	$44.71	$41.94 - $47.91
Q1 2024	54,200	$2,649	$44.93	$40.74 - $52.58
Q4 2023	46,900	$2,646	$45.49	$38.59 - $53.38
Q3 2023	82,500	$3,568	$40.65	$34.46 - $45.59
Q2 2023	121,500	$4,653	$36.02	$31.77 - $39.59
Q1 2023	125,200	$5,546	$47.96	$39.01 - $52.93
Q4 2022	90,400	$5,335	$52.03	$45.87 - $56.69
Q3 2022	40,500	$2,118	$50.12	$46.08 - $54.37
Q2 2022	8,300	$462	$51.14	$48.47 - $53.70
Q4 2021	5,000	$289	$48.46	$45.96 - $50.44
Q3 2021	11,100	$624	$48.00	$45.58 - $50.22
Q2 2021	11,000	$638	$52.96	$48.87 - $55.24
Q1 2021	5,700	$358	$51.31	$45.76 - $56.46
Q4 2020	13,400	$741	$46.10	$42.70 - $50.73
Q3 2020	14,400	$783	$48.57	$43.00 - $54.06
Q2 2020	14,400	$827	$48.00	$42.78 - $54.53
Q1 2020	14,400	$846	$50.93	$38.54 - $56.36
Q4 2019	19,400	$1,315	$53.22	$48.47 - $56.23
Q3 2019	22,600	$1,405	$50.16	$47.48 - $52.86
Q2 2019	23,200	$1,429	$49.98	$47.55 - $52.33
Q1 2019	25,500	$1,576	$49.51	$43.81 - $52.00
Q4 2018	24,100	$1,342	$46.68	$41.39 - $50.57
Q3 2018	26,100	$1,570	$48.42	$42.38 - $51.15
Q2 2018	25,600	$1,447	$45.23	$42.53 - $47.73
Q1 2018	24,200	$1,406	$46.10	$42.86 - $48.73
Q4 2017	23,000	$1,370	$45.39	$41.22 - $49.73
Q3 2017	23,400	$1,393	$41.22	$37.95 - $46.20
Q2 2017	22,500	$1,261	$41.48	$38.41 - $44.70
Q1 2017	19,400	$1,083	$43.50	$40.27 - $48.84
Q4 2016	14,600	$919	$42.49	$35.31 - $49.16
Q3 2016	12,521	$637	$36.26	$34.29 - $38.21
Q2 2016	27,021	$1,331	$35.72	$33.77 - $38.30
Q3 2015	13,121	$583	$34.11	$30.99 - $37.49
Q2 2015	8,521	$432	$32.83	$29.86 - $37.32
Q1 2015	8,321	$360	$30.86	$28.78 - $34.76
Q4 2014	8,121	$398	$33.70	$29.79 - $36.02
Q3 2014	13,121	$610	$33.99	$32.17 - $37.33
Q2 2014	6,721	$351	$35.20	$33.12 - $38.02
Q2 2013	8,121	$373	$29.77	$27.86 - $31.27