COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

Field & Main Bank's Holding History (CIK: 0001594492)

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

Q4 2025

Shares 4,549 Value ($000) $3,923 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 4,458 Value ($000) $4,126 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 4,532 Value ($000) $4,486 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 4,616 Value ($000) $4,366 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 4,834 Value ($000) $4,429 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 4,892 Value ($000) $4,337 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 5,028 Value ($000) $4,274 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 5,096 Value ($000) $3,733 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 5,221 Value ($000) $3,446 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 5,170 Value ($000) $2,921 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 5,199 Value ($000) $2,799 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 5,280 Value ($000) $2,623 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 5,143 Value ($000) $2,348 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 5,179 Value ($000) $2,446 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 5,059 Value ($000) $2,425 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 4,969 Value ($000) $2,861 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 4,964 Value ($000) $2,818 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 4,572 Value ($000) $2,054 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 4,755 Value ($000) $1,881 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 4,615 Value ($000) $1,627 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 4,625 Value ($000) $1,743 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 4,966 Value ($000) $1,763 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 4,836 Value ($000) $1,466 Avg Close $279.18 Range $257.36 - $295.59

Q4 2019

Shares 4,531 Value ($000) $1,332 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 4,516 Value ($000) $1,301 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 4,226 Value ($000) $1,117 Avg Close $226.60 Range $212.14 - $244.81

Q1 2019

Shares 4,011 Value ($000) $971 Avg Close $198.35 Range $180.94 - $220.09

Q3 2018

Shares 3,758 Value ($000) $883 Avg Close $203.13 Range $185.65 - $221.43

Q2 2018

Shares 3,799 Value ($000) $831 Avg Close $177.76 Range $162.55 - $191.42

Q1 2018

Shares 3,761 Value ($000) $709 Avg Close $169.26 Range $157.50 - $179.09

Q4 2017

Shares 3,686 Value ($000) $686 Avg Close $154.45 Range $137.67 - $175.03

Q2 2015

Shares 344 Value ($000) $46 Avg Close $120.23 Range $112.77 - $127.67

Q1 2015

Shares 344 Value ($000) $52 Avg Close $120.91 Range $111.40 - $128.73

Q4 2014

Shares 344 Value ($000) $49 Avg Close $109.42 Range $98.12 - $118.34

Q3 2014

Shares 194 Value ($000) $24 Avg Close $97.13 Range $92.09 - $102.72

Q2 2014

Shares 194 Value ($000) $22 Avg Close $91.81 Range $88.18 - $95.25

Q1 2014

Shares 194 Value ($000) $22 Avg Close $91.29 Range $87.26 - $95.07

Q4 2013

Shares 194 Value ($000) $23 Avg Close $95.15 Range $87.55 - $100.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,549	$3,923	$905.73	$844.06 - $962.64
Q3 2025	4,458	$4,126	$956.70	$902.01 - $997.89
Q2 2025	4,532	$4,486	$990.72	$868.14 - $1064.10
Q1 2025	4,616	$4,366	$970.56	$877.95 - $1073.82
Q4 2024	4,834	$4,429	$922.64	$861.51 - $1003.02
Q3 2024	4,892	$4,337	$861.91	$787.84 - $917.81
Q2 2024	5,028	$4,274	$773.82	$690.64 - $867.04
Q1 2024	5,096	$3,733	$706.75	$633.49 - $779.59
Q4 2023	5,221	$3,446	$573.49	$521.47 - $661.25
Q3 2023	5,170	$2,921	$532.21	$505.45 - $552.31
Q2 2023	5,199	$2,799	$487.14	$459.09 - $519.84
Q1 2023	5,280	$2,623	$471.27	$429.88 - $509.61
Q4 2022	5,143	$2,348	$468.77	$430.19 - $520.75
Q3 2022	5,179	$2,446	$498.08	$444.08 - $541.06
Q2 2022	5,059	$2,425	$484.91	$388.78 - $584.62
Q1 2022	4,969	$2,861	$500.83	$447.15 - $559.84
Q4 2021	4,964	$2,818	$488.10	$415.17 - $544.86
Q3 2021	4,572	$2,054	$418.22	$374.22 - $447.84
Q2 2021	4,755	$1,881	$359.04	$333.36 - $380.48
Q1 2021	4,615	$1,627	$329.77	$291.05 - $361.01
Q4 2020	4,625	$1,743	$347.39	$324.71 - $367.18
Q3 2020	4,966	$1,763	$309.06	$276.17 - $334.67
Q2 2020	4,836	$1,466	$279.18	$257.36 - $295.59
Q4 2019	4,531	$1,332	$271.52	$256.90 - $280.77
Q3 2019	4,516	$1,301	$256.34	$238.19 - $280.38
Q2 2019	4,226	$1,117	$226.60	$212.14 - $244.81
Q1 2019	4,011	$971	$198.35	$180.94 - $220.09
Q3 2018	3,758	$883	$203.13	$185.65 - $221.43
Q2 2018	3,799	$831	$177.76	$162.55 - $191.42
Q1 2018	3,761	$709	$169.26	$157.50 - $179.09
Q4 2017	3,686	$686	$154.45	$137.67 - $175.03
Q2 2015	344	$46	$120.23	$112.77 - $127.67
Q1 2015	344	$52	$120.91	$111.40 - $128.73
Q4 2014	344	$49	$109.42	$98.12 - $118.34
Q3 2014	194	$24	$97.13	$92.09 - $102.72
Q2 2014	194	$22	$91.81	$88.18 - $95.25
Q1 2014	194	$22	$91.29	$87.26 - $95.07
Q4 2013	194	$23	$95.15	$87.55 - $100.50