Caton Frates plan to sell securities of Costco Wholesale Corporation under Form 144

Caton Frates filed Form 144 to notify SEC of plan to sell 700 units of Costco Wholesale Corporation securities around 2026-04-01, with aggregate market value of $689,758.00. The total outstanding units is 443652540.0. The amount planned to be sold represents 0.00% of total outstanding units;