X0306 4 2018-12-06 0 0001477425 SendGrid, Inc. SEND 0001721790 Dholakia Sameer C/O SENDGRID, INC. 1801 CALIFORNIA STREET, SUITE 500 DENVER CO 80202 1 1 0 0 President and CEO Common Stock 2018-12-06 4 S 0 400 41.8075 D 477254 D Common Stock 2018-12-06 4 S 0 2100 43.2429 D 475154 D Common Stock 2018-12-06 4 S 0 4100 44.242 D 471054 D Common Stock 2018-12-06 4 S 0 7486 45.4115 D 463568 D Common Stock 2018-12-06 4 S 0 2580 46.1672 D 460988 D The shares of Common Stock were sold pursuant to a 10b5-1 plan. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.61 to $41.98, inclusive. The reporting person undertakes to provide to the issuer, any security holder of issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.68 to $43.67, inclusive. The reporting person undertakes to provide to the issuer, any security holder of issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.77 to $44.74, inclusive. The reporting person undertakes to provide to the issuer, any security holder of issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.79 to $45.79, inclusive. The reporting person undertakes to provide to the issuer, any security holder of issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.83 to $46.45, inclusive. The reporting person undertakes to provide to the issuer, any security holder of issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote to this Form 4. /s/ Matthew P. Dubofsky, Attorney-in-Fact 2018-12-10