WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

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

Q4 2025

Shares 185,701 Value ($000) $8,882 Avg Close $47.37 Range $44.09 - $50.85

Q3 2025

Shares 179,467 Value ($000) $8,972 Avg Close $48.41 Range $45.39 - $50.63

Q2 2025

Shares 164,145 Value ($000) $7,951 Avg Close $46.41 Range $40.44 - $50.21

Q1 2025

Shares 90,163 Value ($000) $4,565 Avg Close $48.88 Range $46.41 - $51.42

Q4 2024

Shares 47,980 Value ($000) $2,517 Avg Close $50.92 Range $44.42 - $57.25

Q3 2024

Shares 59,318 Value ($000) $2,931 Avg Close $47.96 Range $44.53 - $54.88

Q2 2024

Shares 49,022 Value ($000) $2,379 Avg Close $44.71 Range $41.94 - $47.91

Q1 2024

Shares 35,609 Value ($000) $1,741 Avg Close $44.93 Range $40.74 - $52.58

Q3 2023

Shares 46,548 Value ($000) $2,013 Avg Close $40.65 Range $34.46 - $45.59

Q2 2023

Shares 78,625 Value ($000) $3,011 Avg Close $36.02 Range $31.77 - $39.59

Q1 2023

Shares 103,828 Value ($000) $4,600 Avg Close $47.96 Range $39.01 - $52.93

Q4 2022

Shares 95,583 Value ($000) $5,640 Avg Close $52.03 Range $45.87 - $56.69

Q3 2022

Shares 41,735 Value ($000) $2,182 Avg Close $50.12 Range $46.08 - $54.37

Q2 2022

Shares 29,761 Value ($000) $1,656 Avg Close $51.14 Range $48.47 - $53.70

Q4 2021

Shares 10,694 Value ($000) $617 Avg Close $48.46 Range $45.96 - $50.44

Q3 2021

Shares 25,903 Value ($000) $1,457 Avg Close $48.00 Range $45.58 - $50.22

Q2 2021

Shares 24,053 Value ($000) $1,396 Avg Close $52.96 Range $48.87 - $55.24

Q1 2021

Shares 3,398 Value ($000) $213 Avg Close $51.31 Range $45.76 - $56.46

Q2 2020

Shares 12,255 Value ($000) $704 Avg Close $48.00 Range $42.78 - $54.53

Q1 2017

Shares 4,994 Value ($000) $279 Avg Close $43.50 Range $40.27 - $48.84

Q3 2015

Shares 17,983 Value ($000) $799 Avg Close $34.11 Range $30.99 - $37.49

Q1 2015

Shares 47,299 Value ($000) $2,044 Avg Close $30.86 Range $28.78 - $34.76

Q4 2014

Shares 40,767 Value ($000) $1,998 Avg Close $33.70 Range $29.79 - $36.02

Q3 2014

Shares 119,230 Value ($000) $5,547 Avg Close $33.99 Range $32.17 - $37.33

Q2 2014

Shares 28,995 Value ($000) $1,516 Avg Close $35.20 Range $33.12 - $38.02

Q2 2013

Shares 54,375 Value ($000) $2,485 Avg Close $29.77 Range $27.86 - $31.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	185,701	$8,882	$47.37	$44.09 - $50.85
Q3 2025	179,467	$8,972	$48.41	$45.39 - $50.63
Q2 2025	164,145	$7,951	$46.41	$40.44 - $50.21
Q1 2025	90,163	$4,565	$48.88	$46.41 - $51.42
Q4 2024	47,980	$2,517	$50.92	$44.42 - $57.25
Q3 2024	59,318	$2,931	$47.96	$44.53 - $54.88
Q2 2024	49,022	$2,379	$44.71	$41.94 - $47.91
Q1 2024	35,609	$1,741	$44.93	$40.74 - $52.58
Q3 2023	46,548	$2,013	$40.65	$34.46 - $45.59
Q2 2023	78,625	$3,011	$36.02	$31.77 - $39.59
Q1 2023	103,828	$4,600	$47.96	$39.01 - $52.93
Q4 2022	95,583	$5,640	$52.03	$45.87 - $56.69
Q3 2022	41,735	$2,182	$50.12	$46.08 - $54.37
Q2 2022	29,761	$1,656	$51.14	$48.47 - $53.70
Q4 2021	10,694	$617	$48.46	$45.96 - $50.44
Q3 2021	25,903	$1,457	$48.00	$45.58 - $50.22
Q2 2021	24,053	$1,396	$52.96	$48.87 - $55.24
Q1 2021	3,398	$213	$51.31	$45.76 - $56.46
Q2 2020	12,255	$704	$48.00	$42.78 - $54.53
Q1 2017	4,994	$279	$43.50	$40.27 - $48.84
Q3 2015	17,983	$799	$34.11	$30.99 - $37.49
Q1 2015	47,299	$2,044	$30.86	$28.78 - $34.76
Q4 2014	40,767	$1,998	$33.70	$29.79 - $36.02
Q3 2014	119,230	$5,547	$33.99	$32.17 - $37.33
Q2 2014	28,995	$1,516	$35.20	$33.12 - $38.02
Q2 2013	54,375	$2,485	$29.77	$27.86 - $31.27