WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

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

Q4 2025

Shares 77,480 Value ($000) $3,706 Avg Close $47.37 Range $44.09 - $50.85

Q3 2025

Shares 81,994 Value ($000) $4,099 Avg Close $48.41 Range $45.39 - $50.63

Q2 2025

Shares 85,802 Value ($000) $4,156 Avg Close $46.41 Range $40.44 - $50.21

Q1 2025

Shares 85,243 Value ($000) $4,316 Avg Close $48.88 Range $46.41 - $51.42

Q4 2024

Shares 89,345 Value ($000) $4,687 Avg Close $50.92 Range $44.42 - $57.25

Q3 2024

Shares 89,287 Value ($000) $4,413 Avg Close $47.96 Range $44.53 - $54.88

Q2 2024

Shares 94,298 Value ($000) $4,576 Avg Close $44.71 Range $41.94 - $47.91

Q1 2024

Shares 94,381 Value ($000) $4,613 Avg Close $44.93 Range $40.74 - $52.58

Q4 2023

Shares 97,113 Value ($000) $5,478 Avg Close $45.49 Range $38.59 - $53.38

Q3 2023

Shares 96,325 Value ($000) $4,166 Avg Close $40.65 Range $34.46 - $45.59

Q2 2023

Shares 96,592 Value ($000) $3,699 Avg Close $36.02 Range $31.77 - $39.59

Q1 2023

Shares 97,370 Value ($000) $4 Avg Close $47.96 Range $39.01 - $52.93

Q4 2022

Shares 91,907 Value ($000) $5 Avg Close $52.03 Range $45.87 - $56.69

Q3 2022

Shares 95,011 Value ($000) $4,968 Avg Close $50.12 Range $46.08 - $54.37

Q2 2022

Shares 83,072 Value ($000) $4,624 Avg Close $51.14 Range $48.47 - $53.70

Q1 2022

Shares 80,348 Value ($000) $4,861 Avg Close $51.69 Range $48.38 - $55.12

Q4 2021

Shares 79,633 Value ($000) $4,597 Avg Close $48.46 Range $45.96 - $50.44

Q3 2021

Shares 78,068 Value ($000) $4,392 Avg Close $48.00 Range $45.58 - $50.22

Q2 2021

Shares 94,656 Value ($000) $5,493 Avg Close $52.96 Range $48.87 - $55.24

Q1 2021

Shares 97,728 Value ($000) $6,135 Avg Close $51.31 Range $45.76 - $56.46

Q4 2020

Shares 97,821 Value ($000) $5,409 Avg Close $46.10 Range $42.70 - $50.73

Q3 2020

Shares 91,766 Value ($000) $4,987 Avg Close $48.57 Range $43.00 - $54.06

Q2 2020

Shares 101,289 Value ($000) $5,816 Avg Close $48.00 Range $42.78 - $54.53

Q1 2020

Shares 107,084 Value ($000) $6,294 Avg Close $50.93 Range $38.54 - $56.36

Q4 2019

Shares 95,577 Value ($000) $6,477 Avg Close $53.22 Range $48.47 - $56.23

Q3 2019

Shares 90,102 Value ($000) $5,603 Avg Close $50.16 Range $47.48 - $52.86

Q2 2019

Shares 85,370 Value ($000) $5,260 Avg Close $49.98 Range $47.55 - $52.33

Q1 2019

Shares 83,449 Value ($000) $5,157 Avg Close $49.51 Range $43.81 - $52.00

Q4 2018

Shares 82,108 Value ($000) $4,572 Avg Close $46.68 Range $41.39 - $50.57

Q3 2018

Shares 69,893 Value ($000) $4,205 Avg Close $48.42 Range $42.38 - $51.15

Q2 2018

Shares 75,537 Value ($000) $4,269 Avg Close $45.23 Range $42.53 - $47.73

Q1 2018

Shares 75,430 Value ($000) $4,381 Avg Close $46.10 Range $42.86 - $48.73

Q4 2017

Shares 74,002 Value ($000) $4,407 Avg Close $45.39 Range $41.22 - $49.73

Q3 2017

Shares 66,240 Value ($000) $3,944 Avg Close $41.22 Range $37.95 - $46.20

Q2 2017

Shares 58,466 Value ($000) $3,276 Avg Close $41.48 Range $38.41 - $44.70

Q1 2017

Shares 57,828 Value ($000) $3,229 Avg Close $43.50 Range $40.27 - $48.84

Q4 2016

Shares 53,305 Value ($000) $3,354 Avg Close $42.49 Range $35.31 - $49.16

Q3 2016

Shares 54,426 Value ($000) $2,769 Avg Close $36.26 Range $34.29 - $38.21

Q2 2016

Shares 53,616 Value ($000) $2,641 Avg Close $35.72 Range $33.77 - $38.30

Q1 2016

Shares 61,852 Value ($000) $3,013 Avg Close $33.33 Range $29.47 - $37.02

Q4 2015

Shares 56,617 Value ($000) $2,647 Avg Close $33.66 Range $30.28 - $36.28

Q3 2015

Shares 54,662 Value ($000) $2,429 Avg Close $34.11 Range $30.99 - $37.49

Q2 2015

Shares 53,940 Value ($000) $2,732 Avg Close $32.83 Range $29.86 - $37.32

Q1 2015

Shares 56,390 Value ($000) $2,437 Avg Close $30.86 Range $28.78 - $34.76

Q4 2014

Shares 55,780 Value ($000) $2,734 Avg Close $33.70 Range $29.79 - $36.02

Q3 2014

Shares 56,663 Value ($000) $2,636 Avg Close $33.99 Range $32.17 - $37.33

Q2 2014

Shares 72,271 Value ($000) $3,778 Avg Close $35.20 Range $33.12 - $38.02

Q1 2014

Shares 78,082 Value ($000) $4,223 Avg Close $35.67 Range $33.22 - $38.53

Q4 2013

Shares 76,142 Value ($000) $4,299 Avg Close $36.29 Range $32.69 - $39.26

Q3 2013

Shares 80,148 Value ($000) $3,987 Avg Close $32.64 Range $30.72 - $34.37

Q2 2013

Shares 81,871 Value ($000) $3,741 Avg Close $29.77 Range $27.86 - $31.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	77,480	$3,706	$47.37	$44.09 - $50.85
Q3 2025	81,994	$4,099	$48.41	$45.39 - $50.63
Q2 2025	85,802	$4,156	$46.41	$40.44 - $50.21
Q1 2025	85,243	$4,316	$48.88	$46.41 - $51.42
Q4 2024	89,345	$4,687	$50.92	$44.42 - $57.25
Q3 2024	89,287	$4,413	$47.96	$44.53 - $54.88
Q2 2024	94,298	$4,576	$44.71	$41.94 - $47.91
Q1 2024	94,381	$4,613	$44.93	$40.74 - $52.58
Q4 2023	97,113	$5,478	$45.49	$38.59 - $53.38
Q3 2023	96,325	$4,166	$40.65	$34.46 - $45.59
Q2 2023	96,592	$3,699	$36.02	$31.77 - $39.59
Q1 2023	97,370	$4	$47.96	$39.01 - $52.93
Q4 2022	91,907	$5	$52.03	$45.87 - $56.69
Q3 2022	95,011	$4,968	$50.12	$46.08 - $54.37
Q2 2022	83,072	$4,624	$51.14	$48.47 - $53.70
Q1 2022	80,348	$4,861	$51.69	$48.38 - $55.12
Q4 2021	79,633	$4,597	$48.46	$45.96 - $50.44
Q3 2021	78,068	$4,392	$48.00	$45.58 - $50.22
Q2 2021	94,656	$5,493	$52.96	$48.87 - $55.24
Q1 2021	97,728	$6,135	$51.31	$45.76 - $56.46
Q4 2020	97,821	$5,409	$46.10	$42.70 - $50.73
Q3 2020	91,766	$4,987	$48.57	$43.00 - $54.06
Q2 2020	101,289	$5,816	$48.00	$42.78 - $54.53
Q1 2020	107,084	$6,294	$50.93	$38.54 - $56.36
Q4 2019	95,577	$6,477	$53.22	$48.47 - $56.23
Q3 2019	90,102	$5,603	$50.16	$47.48 - $52.86
Q2 2019	85,370	$5,260	$49.98	$47.55 - $52.33
Q1 2019	83,449	$5,157	$49.51	$43.81 - $52.00
Q4 2018	82,108	$4,572	$46.68	$41.39 - $50.57
Q3 2018	69,893	$4,205	$48.42	$42.38 - $51.15
Q2 2018	75,537	$4,269	$45.23	$42.53 - $47.73
Q1 2018	75,430	$4,381	$46.10	$42.86 - $48.73
Q4 2017	74,002	$4,407	$45.39	$41.22 - $49.73
Q3 2017	66,240	$3,944	$41.22	$37.95 - $46.20
Q2 2017	58,466	$3,276	$41.48	$38.41 - $44.70
Q1 2017	57,828	$3,229	$43.50	$40.27 - $48.84
Q4 2016	53,305	$3,354	$42.49	$35.31 - $49.16
Q3 2016	54,426	$2,769	$36.26	$34.29 - $38.21
Q2 2016	53,616	$2,641	$35.72	$33.77 - $38.30
Q1 2016	61,852	$3,013	$33.33	$29.47 - $37.02
Q4 2015	56,617	$2,647	$33.66	$30.28 - $36.28
Q3 2015	54,662	$2,429	$34.11	$30.99 - $37.49
Q2 2015	53,940	$2,732	$32.83	$29.86 - $37.32
Q1 2015	56,390	$2,437	$30.86	$28.78 - $34.76
Q4 2014	55,780	$2,734	$33.70	$29.79 - $36.02
Q3 2014	56,663	$2,636	$33.99	$32.17 - $37.33
Q2 2014	72,271	$3,778	$35.20	$33.12 - $38.02
Q1 2014	78,082	$4,223	$35.67	$33.22 - $38.53
Q4 2013	76,142	$4,299	$36.29	$32.69 - $39.26
Q3 2013	80,148	$3,987	$32.64	$30.72 - $34.37
Q2 2013	81,871	$3,741	$29.77	$27.86 - $31.27