COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

Mattern Wealth Management LLC's Holding History (CIK: 0001802376)

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

Q4 2025

Shares 6,075 Value ($000) $5,238 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 5,926 Value ($000) $5,485 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 6,086 Value ($000) $6,024 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 5,919 Value ($000) $5,598 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 5,740 Value ($000) $5,260 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 6,061 Value ($000) $5,373 Avg Close $861.91 Range $787.84 - $917.81

Q2 2024

Shares 5,956 Value ($000) $5,062 Avg Close $773.82 Range $690.64 - $867.04

Q1 2024

Shares 6,187 Value ($000) $4,533 Avg Close $706.75 Range $633.49 - $779.59

Q4 2023

Shares 6,209 Value ($000) $4,099 Avg Close $573.49 Range $521.47 - $661.25

Q3 2023

Shares 6,035 Value ($000) $3,410 Avg Close $532.21 Range $505.45 - $552.31

Q2 2023

Shares 5,698 Value ($000) $3,068 Avg Close $487.14 Range $459.09 - $519.84

Q1 2023

Shares 5,136 Value ($000) $2,552 Avg Close $471.27 Range $429.88 - $509.61

Q4 2022

Shares 5,322 Value ($000) $2,429 Avg Close $468.77 Range $430.19 - $520.75

Q3 2022

Shares 5,161 Value ($000) $2,437 Avg Close $498.08 Range $444.08 - $541.06

Q2 2022

Shares 5,107 Value ($000) $2,448 Avg Close $484.91 Range $388.78 - $584.62

Q1 2022

Shares 4,998 Value ($000) $2,878 Avg Close $500.83 Range $447.15 - $559.84

Q4 2021

Shares 4,991 Value ($000) $2,833 Avg Close $488.10 Range $415.17 - $544.86

Q3 2021

Shares 5,207 Value ($000) $2,340 Avg Close $418.22 Range $374.22 - $447.84

Q2 2021

Shares 5,104 Value ($000) $2,095 Avg Close $359.04 Range $333.36 - $380.48

Q1 2021

Shares 5,247 Value ($000) $1,849 Avg Close $329.77 Range $291.05 - $361.01

Q4 2020

Shares 2,771 Value ($000) $1,044 Avg Close $347.39 Range $324.71 - $367.18

Q3 2020

Shares 2,677 Value ($000) $950 Avg Close $309.06 Range $276.17 - $334.67

Q2 2020

Shares 2,687 Value ($000) $815 Avg Close $279.18 Range $257.36 - $295.59

Q1 2020

Shares 2,610 Value ($000) $744 Avg Close $277.78 Range $248.54 - $298.00

Q4 2019

Shares 2,315 Value ($000) $680 Avg Close $271.52 Range $256.90 - $280.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,075	$5,238	$905.73	$844.06 - $962.64
Q3 2025	5,926	$5,485	$956.70	$902.01 - $997.89
Q2 2025	6,086	$6,024	$990.72	$868.14 - $1064.10
Q1 2025	5,919	$5,598	$970.56	$877.95 - $1073.82
Q4 2024	5,740	$5,260	$922.64	$861.51 - $1003.02
Q3 2024	6,061	$5,373	$861.91	$787.84 - $917.81
Q2 2024	5,956	$5,062	$773.82	$690.64 - $867.04
Q1 2024	6,187	$4,533	$706.75	$633.49 - $779.59
Q4 2023	6,209	$4,099	$573.49	$521.47 - $661.25
Q3 2023	6,035	$3,410	$532.21	$505.45 - $552.31
Q2 2023	5,698	$3,068	$487.14	$459.09 - $519.84
Q1 2023	5,136	$2,552	$471.27	$429.88 - $509.61
Q4 2022	5,322	$2,429	$468.77	$430.19 - $520.75
Q3 2022	5,161	$2,437	$498.08	$444.08 - $541.06
Q2 2022	5,107	$2,448	$484.91	$388.78 - $584.62
Q1 2022	4,998	$2,878	$500.83	$447.15 - $559.84
Q4 2021	4,991	$2,833	$488.10	$415.17 - $544.86
Q3 2021	5,207	$2,340	$418.22	$374.22 - $447.84
Q2 2021	5,104	$2,095	$359.04	$333.36 - $380.48
Q1 2021	5,247	$1,849	$329.77	$291.05 - $361.01
Q4 2020	2,771	$1,044	$347.39	$324.71 - $367.18
Q3 2020	2,677	$950	$309.06	$276.17 - $334.67
Q2 2020	2,687	$815	$279.18	$257.36 - $295.59
Q1 2020	2,610	$744	$277.78	$248.54 - $298.00
Q4 2019	2,315	$680	$271.52	$256.90 - $280.77