X0306 4 2019-02-26 0 0001437352 EVERBRIDGE, INC. EVBG 0001204899 GRAYSON BRUNS H 25 CORPORATE DRIVE, 4TH FLOOR BURLINGTON MA 01803 1 0 0 0 Common Stock 2019-02-26 4 S 0 20000 69.6136 D 100000 D Represents the weighted average price for 20,000 shares sold within the range of $69.30 to $70.24. Information regarding the number of shares sold at each separate price will be made available from the reporting person upon request by the SEC, the issuer or its shareowners. Elliot J. Mark, Attorney-in-Fact 2019-02-26