X0306 4 2020-02-18 0 0001093557 DEXCOM INC DXCM 0001700255 Leach Jacob Steven 6340 SEQUENCE DRIVE SAN DIEGO CA 92121 0 1 0 0 EVP Chief Technology Officer Common Stock 2020-02-18 4 M 0 11458 9.78 A 122563 D Common Stock 11824 I Family Holdings Incentive Stock Option (right to buy) 9.78 2020-02-18 4 M 0 11458 0.0 D 2011-02-18 2020-02-18 Common Stock 11458 0 D Included in this number are 33,890 unvested restricted stock units, 14,987 of which were granted on March 8, 2019 and shall vest through March 8, 2022, 15,047 of which were granted on March 8, 2018 and shall vest through March 8, 2021, 3,856 of which were granted on March 8, 2017 and shall vest through March 8, 2020. Shares are held by the Gregg Family Grandchildren's Trust UAD 12/30/2010, with respect to which the reporting person's spouse is a trustee. By: Jereme Sylvain For: Jacob S Leach 2020-02-19