X0306 4 2017-05-10 0 0001093557 DEXCOM INC DXCM 0001323190 Balo Andrew K 6340 SEQUENCE DRIVE SAN DIEGO CA 92121 0 1 0 0 EVP, Clinical and Regulatory Common Stock 2017-05-10 4 S 0 3200 71.93 D 109633 D On December 09, 2016, Mr. Balo adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Balo. The shares set forth above were sold pursuant to the 10b5-1 Plan. Included in this number are 69,927 unvested restricted stock units, 28,761 of which were granted on March 8, 2017 and shall vest through March 8, 2020, 25,333 of which were granted on March 8, 2016 and shall vest through March 8, 2019 and 15,833 of which were granted on March 8, 2015 and shall vest through March 8, 2018. By: Kevin Sun For: Andrew K. Balo 2017-05-12