John Christopher Sullivan

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	584.852	522.56 k	45,530.692
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	427.386	381.87 k	46,115.544
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	572.834	511.82 k	46,542.93
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	421.414	376.53 k	47,115.764
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	514.349	459.57 k	47,537.178
22 Oct 24	COST Costco Wholesale	Common Stock	Grant	Acquire A	No	No	0	7,433.436	0.00	48,051.527
12 Jan 24	COST Costco Wholesale	Common Stock	Grant	Acquire A	No	No	0	138.186	0.00	40,511.117
12 Jan 24	COST Costco Wholesale	Common Stock	Grant	Acquire A	No	No	0	245.16	0.00	40,618.091
22 Oct 23	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	552.93	562.705	311.14 k	40,372.931
22 Oct 23	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	552.93	413.963	228.89 k	40,935.636

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.