Claudine Adamo

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	176.658	157.84 k	7,886.503
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	198.289	177.17 k	8,063.161
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	97.342	86.97 k	8,261.45
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	122.178	109.16 k	8,358.792
22 Oct 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	893.49	148.617	132.79 k	8,480.97
30 Sep 24	COST Costco Wholesale	Common Stock	Sell	Dispose S	No	No	888.993	3,200	2.84 mm	8,629.587
16 Sep 24	COST Costco Wholesale	Common Stock	Payment of exercise	Dispose F	No	No	907.87	1,602.151	1.45 mm	11,829.587
16 Sep 24	COST Costco Wholesale	Common Stock	Grant	Acquire A	No	No	0	6,737.124	0.00	13,431.738
11 Mar 24	COST Costco Wholesale	Common Stock	Sell	Dispose S	No	No	714.825	1,500	1.07 mm	6,694.614
12 Jan 24	COST Costco Wholesale	Common Stock	Grant	Acquire A	No	No	0	30.726	0.00	8,158.974

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