WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 287,469 Value ($000) $13,750 Avg Close $47.37 Range $44.09 - $50.85

Q3 2025

Shares 309,461 Value ($000) $15,470 Avg Close $48.41 Range $45.39 - $50.63

Q2 2025

Shares 321,638 Value ($000) $15,580 Avg Close $46.41 Range $40.44 - $50.21

Q1 2025

Shares 389,683 Value ($000) $19,730 Avg Close $48.88 Range $46.41 - $51.42

Q4 2024

Shares 393,998 Value ($000) $20,669 Avg Close $50.92 Range $44.42 - $57.25

Q3 2024

Shares 334,673 Value ($000) $16,540 Avg Close $47.96 Range $44.53 - $54.88

Q2 2024

Shares 342,372 Value ($000) $16,615 Avg Close $44.71 Range $41.94 - $47.91

Q1 2024

Shares 350,937 Value ($000) $17,154 Avg Close $44.93 Range $40.74 - $52.58

Q4 2023

Shares 491,258 Value ($000) $27,712 Avg Close $45.49 Range $38.59 - $53.38

Q3 2023

Shares 543,134 Value ($000) $23,491 Avg Close $40.65 Range $34.46 - $45.59

Q2 2023

Shares 550,209 Value ($000) $21,073 Avg Close $36.02 Range $31.77 - $39.59

Q1 2023

Shares 517,857 Value ($000) $22,941 Avg Close $47.96 Range $39.01 - $52.93

Q4 2022

Shares 489,715 Value ($000) $28,898 Avg Close $52.03 Range $45.87 - $56.69

Q3 2022

Shares 483,958 Value ($000) $25,307 Avg Close $50.12 Range $46.08 - $54.37

Q2 2022

Shares 481,515 Value ($000) $26,802 Avg Close $51.14 Range $48.47 - $53.70

Q1 2022

Shares 476,948 Value ($000) $28,855 Avg Close $51.69 Range $48.38 - $55.12

Q4 2021

Shares 463,377 Value ($000) $26,751 Avg Close $48.46 Range $45.96 - $50.44

Q3 2021

Shares 462,935 Value ($000) $26,046 Avg Close $48.00 Range $45.58 - $50.22

Q2 2021

Shares 448,766 Value ($000) $26,042 Avg Close $52.96 Range $48.87 - $55.24

Q1 2021

Shares 444,203 Value ($000) $27,887 Avg Close $51.31 Range $45.76 - $56.46

Q4 2020

Shares 427,797 Value ($000) $23,653 Avg Close $46.10 Range $42.70 - $50.73

Q3 2020

Shares 478,573 Value ($000) $26,010 Avg Close $48.57 Range $43.00 - $54.06

Q2 2020

Shares 488,851 Value ($000) $28,068 Avg Close $48.00 Range $42.78 - $54.53

Q1 2020

Shares 482,648 Value ($000) $28,369 Avg Close $50.93 Range $38.54 - $56.36

Q4 2019

Shares 483,727 Value ($000) $32,783 Avg Close $53.22 Range $48.47 - $56.23

Q3 2019

Shares 485,894 Value ($000) $30,212 Avg Close $50.16 Range $47.48 - $52.86

Q2 2019

Shares 462,045 Value ($000) $28,467 Avg Close $49.98 Range $47.55 - $52.33

Q1 2019

Shares 437,132 Value ($000) $27,014 Avg Close $49.51 Range $43.81 - $52.00

Q4 2018

Shares 421,773 Value ($000) $23,484 Avg Close $46.68 Range $41.39 - $50.57

Q3 2018

Shares 417,697 Value ($000) $25,128 Avg Close $48.42 Range $42.38 - $51.15

Q2 2018

Shares 409,945 Value ($000) $23,167 Avg Close $45.23 Range $42.53 - $47.73

Q1 2018

Shares 428,701 Value ($000) $24,898 Avg Close $46.10 Range $42.86 - $48.73

Q4 2017

Shares 430,743 Value ($000) $25,651 Avg Close $45.39 Range $41.22 - $49.73

Q3 2017

Shares 434,449 Value ($000) $25,868 Avg Close $41.22 Range $37.95 - $46.20

Q2 2017

Shares 439,225 Value ($000) $24,614 Avg Close $41.48 Range $38.41 - $44.70

Q1 2017

Shares 425,415 Value ($000) $23,751 Avg Close $43.50 Range $40.27 - $48.84

Q4 2016

Shares 430,260 Value ($000) $27,076 Avg Close $42.49 Range $35.31 - $49.16

Q3 2016

Shares 474,492 Value ($000) $24,142 Avg Close $36.26 Range $34.29 - $38.21

Q2 2016

Shares 466,968 Value ($000) $23,003 Avg Close $35.72 Range $33.77 - $38.30

Q1 2016

Shares 469,372 Value ($000) $22,611 Avg Close $33.33 Range $29.47 - $37.02

Q4 2015

Shares 456,403 Value ($000) $21,337 Avg Close $33.66 Range $30.28 - $36.28

Q3 2015

Shares 444,366 Value ($000) $19,748 Avg Close $34.11 Range $30.99 - $37.49

Q2 2015

Shares 386,457 Value ($000) $19,574 Avg Close $32.83 Range $29.86 - $37.32

Q1 2015

Shares 424,379 Value ($000) $18,336 Avg Close $30.86 Range $28.78 - $34.76

Q4 2014

Shares 406,852 Value ($000) $19,943 Avg Close $33.70 Range $29.79 - $36.02

Q3 2014

Shares 397,979 Value ($000) $18,515 Avg Close $33.99 Range $32.17 - $37.33

Q2 2014

Shares 478,207 Value ($000) $25,001 Avg Close $35.20 Range $33.12 - $38.02

Q1 2014

Shares 543,377 Value ($000) $29,386 Avg Close $35.67 Range $33.22 - $38.53

Q4 2013

Shares 541,606 Value ($000) $30,578 Avg Close $36.29 Range $32.69 - $39.26

Q3 2013

Shares 541,704 Value ($000) $26,945 Avg Close $32.64 Range $30.72 - $34.37

Q2 2013

Shares 572,314 Value ($000) $26,149 Avg Close $29.77 Range $27.86 - $31.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	287,469	$13,750	$47.37	$44.09 - $50.85
Q3 2025	309,461	$15,470	$48.41	$45.39 - $50.63
Q2 2025	321,638	$15,580	$46.41	$40.44 - $50.21
Q1 2025	389,683	$19,730	$48.88	$46.41 - $51.42
Q4 2024	393,998	$20,669	$50.92	$44.42 - $57.25
Q3 2024	334,673	$16,540	$47.96	$44.53 - $54.88
Q2 2024	342,372	$16,615	$44.71	$41.94 - $47.91
Q1 2024	350,937	$17,154	$44.93	$40.74 - $52.58
Q4 2023	491,258	$27,712	$45.49	$38.59 - $53.38
Q3 2023	543,134	$23,491	$40.65	$34.46 - $45.59
Q2 2023	550,209	$21,073	$36.02	$31.77 - $39.59
Q1 2023	517,857	$22,941	$47.96	$39.01 - $52.93
Q4 2022	489,715	$28,898	$52.03	$45.87 - $56.69
Q3 2022	483,958	$25,307	$50.12	$46.08 - $54.37
Q2 2022	481,515	$26,802	$51.14	$48.47 - $53.70
Q1 2022	476,948	$28,855	$51.69	$48.38 - $55.12
Q4 2021	463,377	$26,751	$48.46	$45.96 - $50.44
Q3 2021	462,935	$26,046	$48.00	$45.58 - $50.22
Q2 2021	448,766	$26,042	$52.96	$48.87 - $55.24
Q1 2021	444,203	$27,887	$51.31	$45.76 - $56.46
Q4 2020	427,797	$23,653	$46.10	$42.70 - $50.73
Q3 2020	478,573	$26,010	$48.57	$43.00 - $54.06
Q2 2020	488,851	$28,068	$48.00	$42.78 - $54.53
Q1 2020	482,648	$28,369	$50.93	$38.54 - $56.36
Q4 2019	483,727	$32,783	$53.22	$48.47 - $56.23
Q3 2019	485,894	$30,212	$50.16	$47.48 - $52.86
Q2 2019	462,045	$28,467	$49.98	$47.55 - $52.33
Q1 2019	437,132	$27,014	$49.51	$43.81 - $52.00
Q4 2018	421,773	$23,484	$46.68	$41.39 - $50.57
Q3 2018	417,697	$25,128	$48.42	$42.38 - $51.15
Q2 2018	409,945	$23,167	$45.23	$42.53 - $47.73
Q1 2018	428,701	$24,898	$46.10	$42.86 - $48.73
Q4 2017	430,743	$25,651	$45.39	$41.22 - $49.73
Q3 2017	434,449	$25,868	$41.22	$37.95 - $46.20
Q2 2017	439,225	$24,614	$41.48	$38.41 - $44.70
Q1 2017	425,415	$23,751	$43.50	$40.27 - $48.84
Q4 2016	430,260	$27,076	$42.49	$35.31 - $49.16
Q3 2016	474,492	$24,142	$36.26	$34.29 - $38.21
Q2 2016	466,968	$23,003	$35.72	$33.77 - $38.30
Q1 2016	469,372	$22,611	$33.33	$29.47 - $37.02
Q4 2015	456,403	$21,337	$33.66	$30.28 - $36.28
Q3 2015	444,366	$19,748	$34.11	$30.99 - $37.49
Q2 2015	386,457	$19,574	$32.83	$29.86 - $37.32
Q1 2015	424,379	$18,336	$30.86	$28.78 - $34.76
Q4 2014	406,852	$19,943	$33.70	$29.79 - $36.02
Q3 2014	397,979	$18,515	$33.99	$32.17 - $37.33
Q2 2014	478,207	$25,001	$35.20	$33.12 - $38.02
Q1 2014	543,377	$29,386	$35.67	$33.22 - $38.53
Q4 2013	541,606	$30,578	$36.29	$32.69 - $39.26
Q3 2013	541,704	$26,945	$32.64	$30.72 - $34.37
Q2 2013	572,314	$26,149	$29.77	$27.86 - $31.27