COSTCO WHSL CORP NEW

Ticker: COST CUSIP: 22160K105 Class: COM

HARBOR ADVISORY CORP /MA/'s Holding History (CIK: 0001100710)

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

Q3 2025

Shares 227 Value ($000) $210 Avg Close $956.70 Range $902.01 - $997.89

Q2 2025

Shares 227 Value ($000) $225 Avg Close $990.72 Range $868.14 - $1064.10

Q1 2025

Shares 227 Value ($000) $215 Avg Close $970.56 Range $877.95 - $1073.82

Q4 2024

Shares 273 Value ($000) $250 Avg Close $922.64 Range $861.51 - $1003.02

Q3 2024

Shares 273 Value ($000) $242 Avg Close $861.91 Range $787.84 - $917.81

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	227	$210	$956.70	$902.01 - $997.89
Q2 2025	227	$225	$990.72	$868.14 - $1064.10
Q1 2025	227	$215	$970.56	$877.95 - $1073.82
Q4 2024	273	$250	$922.64	$861.51 - $1003.02
Q3 2024	273	$242	$861.91	$787.84 - $917.81