 BURLINGTON, Mass.--BUSINESS WIRE--Everbridge, Inc. NASDAQ: EVBG, the global leader in critical event management CEM, today announced the closing of its previously announced offering of 375 million aggregate principal amount of 0 convertible senior notes due 2026 the Notes in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended, which included the full exercise of the initial purchasers option to purchase 50 million 