DEXCOM INC

To comply with the universal proxy rules, stockholders who intend to solicit proxies in support of director nominees other than our nominees for the 2026 annual meeting of stockholders must submit a notice to Dexcom’s Corporate Secretary at the principal executive offices of Dexcom that sets forth all information required by Rule 14a-19 under the Exchange Act no later than March 9, 2026 (or, if the 2026 annual meeting of stockholders is called for a date that is not within 30 calendar days of the anniversary of the date of the Annual Meeting, then notice must be provided by the later of 60 calendar days prior to the date of the 2026 annual meeting of stockholders or the tenth calendar day following the day on which public announcement of the date of the 2026 annual meeting of stockholders is first made).