COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

BLALOCK WILLIAMS, LLC's Holding History (CIK: 0002092331)

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

Q4 2025

Shares 845 Value ($000) $729 Avg Close $905.73 Range $844.06 - $962.64

Q3 2025

Shares 942 Value ($000) $872 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 977 Value ($000) $967 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 1,011 Value ($000) $956 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 961 Value ($000) $881 Avg Close $922.64 Range $861.51 - $1003.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	845	$729	$905.73	$844.06 - $962.64
Q3 2025	942	$872	$956.70	$902.01 - $997.89
Q2 2025	977	$967	$990.72	$868.14 - $1064.10
Q1 2025	1,011	$956	$970.56	$877.95 - $1073.82
Q4 2024	961	$881	$922.64	$861.51 - $1003.02