COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

West Branch Capital LLC's Holding History (CIK: 0001738723)

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

Q4 2025

Shares 3,926 Value ($000) $3,385 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 3,809 Value ($000) $3,526 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 3,586 Value ($000) $3,550 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 3,432 Value ($000) $3,246 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 2,999 Value ($000) $2,748 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 2,984 Value ($000) $2,646 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 2,554 Value ($000) $2,170 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 1,957 Value ($000) $1,434 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 1,685 Value ($000) $1,112 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 1,392 Value ($000) $786 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 1,391 Value ($000) $749 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 1,391 Value ($000) $691 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 1,402 Value ($000) $640 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 1,401 Value ($000) $662 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 1,340 Value ($000) $642 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 1,315 Value ($000) $757 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 1,299 Value ($000) $738 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 1,249 Value ($000) $561 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 1,163 Value ($000) $460 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 1,431 Value ($000) $505 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 3,040 Value ($000) $1,146 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 2,767 Value ($000) $982 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 911 Value ($000) $276 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 1,157 Value ($000) $330 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 1,148 Value ($000) $337 Avg Close $271.52 Range $256.90 - $280.77

Q3 2019

Shares 915 Value ($000) $264 Avg Close $256.34 Range $238.19 - $280.38

Q2 2019

Shares 914 Value ($000) $242 Avg Close $226.60 Range $212.14 - $244.81

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,926	$3,385	$905.73	$844.06 - $962.64
Q3 2025	3,809	$3,526	$956.70	$902.01 - $997.89
Q2 2025	3,586	$3,550	$990.72	$868.14 - $1064.10
Q1 2025	3,432	$3,246	$970.56	$877.95 - $1073.82
Q4 2024	2,999	$2,748	$922.64	$861.51 - $1003.02
Q3 2024	2,984	$2,646	$861.91	$787.84 - $917.81
Q2 2024	2,554	$2,170	$773.82	$690.64 - $867.04
Q1 2024	1,957	$1,434	$706.75	$633.49 - $779.59
Q4 2023	1,685	$1,112	$573.49	$521.47 - $661.25
Q3 2023	1,392	$786	$532.21	$505.45 - $552.31
Q2 2023	1,391	$749	$487.14	$459.09 - $519.84
Q1 2023	1,391	$691	$471.27	$429.88 - $509.61
Q4 2022	1,402	$640	$468.77	$430.19 - $520.75
Q3 2022	1,401	$662	$498.08	$444.08 - $541.06
Q2 2022	1,340	$642	$484.91	$388.78 - $584.62
Q1 2022	1,315	$757	$500.83	$447.15 - $559.84
Q4 2021	1,299	$738	$488.10	$415.17 - $544.86
Q3 2021	1,249	$561	$418.22	$374.22 - $447.84
Q2 2021	1,163	$460	$359.04	$333.36 - $380.48
Q1 2021	1,431	$505	$329.77	$291.05 - $361.01
Q4 2020	3,040	$1,146	$347.39	$324.71 - $367.18
Q3 2020	2,767	$982	$309.06	$276.17 - $334.67
Q2 2020	911	$276	$279.18	$257.36 - $295.59
Q1 2020	1,157	$330	$277.78	$248.54 - $298.00
Q4 2019	1,148	$337	$271.52	$256.90 - $280.77
Q3 2019	915	$264	$256.34	$238.19 - $280.38
Q2 2019	914	$242	$226.60	$212.14 - $244.81