COST - SEC Form 4 insider transactions

SEC Form 4 filed by Frates Caton

SEC Form 4 filed by Executive Vice President George Sarah Catherine

Executive Vice President Millerchip Gary covered exercise/tax liability with 1,154 shares, decreasing direct ownership by 7% to 15,465 units (SEC Form 4)

Executive Vice President Adamo Claudine sold $732,205 worth of shares (730 units at $1,003.02), decreasing direct ownership by 11% to 6,121 units (SEC Form 4)

Director Raikes Jeffrey S gifted 5,115 shares, decreasing direct ownership by 31% to 11,293 units (SEC Form 4)

Executive Vice President Jones Teresa A. gifted 300 shares, decreasing direct ownership by 7% to 3,928 units (SEC Form 4)

Executive Vice President Jones Teresa A. sold $838,318 worth of shares (850 units at $986.26), decreasing direct ownership by 17% to 4,228 units (SEC Form 4)

Director Decker Susan L sold $437,390 worth of shares (458 units at $955.00), decreasing direct ownership by 5% to 8,532 units (SEC Form 4)

Director Raimondo Gina Marie was granted 215 shares (SEC Form 4)

Executive Vice President Klauer James C sold $1,408,500 worth of shares (1,500 units at $939.00), decreasing direct ownership by 3% to 44,837 units (SEC Form 4)

Sr. Executive Vice President Miller Russell D sold $1,374,480 worth of shares (1,500 units at $916.32) (SEC Form 4)

Executive Vice President Polit Javier sold $2,258,662 worth of shares (2,607 units at $866.28), decreasing direct ownership by 20% to 10,190 units (SEC Form 4)

Director Denman Kenneth D gifted 325 shares, decreasing direct ownership by 5% to 5,664 units (SEC Form 4)

Director Decker Susan L gifted 2,827 shares, decreasing direct ownership by 24% to 8,990 units (SEC Form 4)

Director Raikes Jeffrey S gifted 4,120 shares, decreasing direct ownership by 20% to 16,408 units (SEC Form 4)

Executive Vice President Wilcox William Richard sold $2,232,312 worth of shares (2,400 units at $930.13), decreasing direct ownership by 55% to 2,000 units (SEC Form 4)

Principal Accounting Officer Barbre Tiffany Marie was granted 2,118 shares, covered exercise/tax liability with 542 shares and sold $1,158,353 worth of shares (1,239 units at $934.62), increasing direct ownership by 7% to 5,155 units (SEC Form 4)

President and CEO Vachris Roland Michael covered exercise/tax liability with 2,653 shares and was granted 13,834 shares, increasing direct ownership by 27% to 52,258 units (SEC Form 4)

Executive VP Sullivan John Christopher was granted 4,654 shares and covered exercise/tax liability with 2,514 shares, increasing direct ownership by 5% to 47,671 units (SEC Form 4)

Executive Vice President Polit Javier covered exercise/tax liability with 1,168 shares and was granted 4,219 shares, increasing direct ownership by 31% to 12,797 units (SEC Form 4)

Executive Vice President Millerchip Gary was granted 6,268 shares and covered exercise/tax liability with 813 shares, increasing direct ownership by 49% to 16,619 units (SEC Form 4)

Executive Vice President Klauer James C covered exercise/tax liability with 917 shares, decreasing direct ownership by 2% to 46,337 units (SEC Form 4)

Executive Vice President Frates Caton covered exercise/tax liability with 2,769 shares, decreasing direct ownership by 30% to 6,515 units (SEC Form 4)

Executive Vice President Callans Patrick J covered exercise/tax liability with 917 shares, decreasing direct ownership by 1% to 60,895 units (SEC Form 4)

Executive Vice President Adamo Claudine covered exercise/tax liability with 705 shares and sold $2,526,336 worth of shares (2,700 units at $935.68), decreasing direct ownership by 33% to 6,851 units (SEC Form 4)

Director Stanton John W was granted 286 shares, increasing direct ownership by 1% to 24,090 units (SEC Form 4)

Director Wilderotter Mary Agnes was granted 286 shares, increasing direct ownership by 10% to 3,205 units (SEC Form 4)

Director Raikes Jeffrey S was granted 286 shares, increasing direct ownership by 1% to 20,528 units (SEC Form 4)

Director Jewell Sarah Mr Sally was granted 286 shares, increasing direct ownership by 9% to 3,613 units (SEC Form 4)

Director James Hamilton E was granted 286 shares, increasing direct ownership by 0.52% to 55,538 units (SEC Form 4)

Director Foulkes Helena was granted 286 shares, increasing direct ownership by 36% to 1,087 units (SEC Form 4)

Director Denman Kenneth D was granted 286 shares, increasing direct ownership by 5% to 5,989 units (SEC Form 4)

Director Decker Susan L was granted 286 shares, increasing direct ownership by 2% to 11,817 units (SEC Form 4)

Sr. Executive Vice President Miller Russell D sold $3,093,615 worth of shares (3,381 units at $915.00) (SEC Form 4)

Executive Vice President Frates Caton sold $1,401,431 worth of shares (1,540 units at $910.02), decreasing direct ownership by 14% to 9,284 units (SEC Form 4)

Sr. Executive Vice President Miller Russell D gifted 2,918 shares and received a gift of 2,918 shares, decreasing direct ownership by 100% to 2 units (SEC Form 4)

Executive Vice President Rubanenko Yoram covered exercise/tax liability with 1,746 shares and was granted 4,219 shares, increasing direct ownership by 43% to 8,247 units (SEC Form 4)

Executive Vice President Riel Pierre was granted 4,654 shares and covered exercise/tax liability with 1,608 shares, increasing direct ownership by 37% to 11,256 units (SEC Form 4)

Sr. Executive Vice President Miller Russell D was granted 4,654 shares and covered exercise/tax liability with 1,735 shares, increasing direct ownership by 289,001% to 2,920 units (SEC Form 4)

Executive Vice President Klauer James C covered exercise/tax liability with 958 shares and was granted 4,219 shares, increasing direct ownership by 7% to 47,254 units (SEC Form 4)

Executive Vice President Jones Teresa A. was granted 4,219 shares and covered exercise/tax liability with 1,503 shares, increasing direct ownership by 115% to 5,078 units (SEC Form 4)

SEC Form 4 filed by Costco Wholesale Corporation

Executive Vice President Callans Patrick J was granted 4,219 shares and covered exercise/tax liability with 950 shares, increasing direct ownership by 6% to 61,812 units (SEC Form 4)

Executive Vice President Adamo Claudine was granted 4,219 shares and covered exercise/tax liability with 950 shares, increasing direct ownership by 47% to 10,256 units (SEC Form 4)

Director Stanton John W gifted 211 shares and received a gift of 211 shares (SEC Form 4)

Executive Vice President Jones Teresa A. sold $595,230 worth of shares (600 units at $992.05), decreasing direct ownership by 20% to 2,362 units (SEC Form 4)

Director Raikes Jeffrey S gifted 6,573 shares, decreasing direct ownership by 25% to 20,242 units (SEC Form 4)

Executive Vice President Rubanenko Yoram sold $3,899,852 worth of shares (4,000 units at $974.96), decreasing direct ownership by 41% to 5,774 units (SEC Form 4)

Director Decker Susan L sold $536,058 worth of shares (547 units at $980.00), decreasing direct ownership by 5% to 11,531 units (SEC Form 4)

Executive Vice President Callans Patrick J sold $3,008,298 worth of shares (3,000 units at $1,002.77), decreasing direct ownership by 5% to 58,543 units (SEC Form 4)

Executive Vice President Riel Pierre sold $2,028,294 worth of shares (2,000 units at $1,014.15), decreasing direct ownership by 20% to 8,210 units (SEC Form 4)

Executive Vice President Klauer James C sold $3,924,280 worth of shares (4,000 units at $981.07) and transferred by will 98 shares), decreasing direct ownership by 8% to 43,994 units (SEC Form 4)

Executive Vice President Millerchip Gary sold $1,034,007 worth of shares (1,100 units at $940.01), decreasing direct ownership by 9% to 11,165 units (SEC Form 4)

Executive Vice President Adamo Claudine sold $830,304 worth of shares (900 units at $922.56), decreasing direct ownership by 11% to 6,987 units (SEC Form 4)

Executive Vice President Frates Caton sold $765,213 worth of shares (850 units at $900.25), decreasing direct ownership by 10% to 7,876 units (SEC Form 4)

President and CEO Vachris Roland Michael sold $3,351,600 worth of shares (3,600 units at $931.00), decreasing direct ownership by 8% to 41,077 units (SEC Form 4)

Executive Vice President Millerchip Gary covered exercise/tax liability with 1,147 shares, decreasing direct ownership by 9% to 12,265 units (SEC Form 4)

Director Jelinek W Craig gifted 2,017 shares, decreasing direct ownership by 0.98% to 204,365 units (SEC Form 4)

Director Raikes Jeffrey S gifted 3,969 shares, decreasing direct ownership by 13% to 26,815 units (SEC Form 4)

Director Denman Kenneth D gifted 520 shares, decreasing direct ownership by 8% to 5,703 units (SEC Form 4)