DEXCOM INC

DexCom, Inc.

Table of Contents

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

Except for historical financial information contained herein, the matters discussed in this Quarterly Report on Form 10-Q may be considered forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and subject to the safe harbor created by the Private Securities Litigation Reform Act of 1995. Such statements include declarations regarding our operations, financial condition and prospects, and business strategies, and are based on management’s current intent, beliefs, expectations, and assumptions. Investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve a number of risks, uncertainties and other factors, some of which are beyond our control; actual results could differ materially from those indicated or implied by such forward-looking statements. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements include, but are not limited to: (i) that the information is of a preliminary nature and may be subject to further adjustment; (ii) those risks and uncertainties identified under “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 filed with the Securities and Exchange Commission, or the SEC, on February 8, 2024, together with any updates identified under “Risk Factors” in our subsequent Quarterly Reports on Form 10-Q; and (iii) the other risks detailed from time-to-time in our other reports and registration statements filed with the SEC. Except as required by law, we undertake no obligation to revise or update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

AVAILABLE INFORMATION

Our website address is located at dexcom.com and our investor relations website is located at investors.dexcom.com. We file electronically with the SEC our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and other reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act. We make available on our website, free of charge, copies of these reports and other information as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. Information that is based on estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may differ materially from events and circumstances reflected in this information. Unless otherwise expressly stated, we obtained industry, business, market, and other data from reports, research surveys, studies, and similar data prepared by market research firms and other third parties, industry, medical and general publications, government data, and similar sources.

We announce material information to the public about us, our products, and other matters through a variety of means, including filings with the SEC, press releases, public conference calls, presentations, webcasts, and our investor relations website in order to achieve broad, non-exclusionary distribution of information to the public and to comply with our disclosure obligations under Regulation FD. The information disclosed by the foregoing channels could be deemed to be material information. As such, we encourage investors, the media, and others to follow the channels listed above and review the information disclosed through such channels.

Except as expressly set forth in this Quarterly Report on Form 10-Q, the contents of our website are not incorporated by reference into, or otherwise to be regarded as part of, this Quarterly Report on Form 10-Q or any other report or document we file with the SEC, and any references to our website are intended to be inactive textual references only.

“Dexcom”, “Dexcom Clarity”, “Dexcom One”, and other trademarks of ours appearing in this Quarterly Report on Form 10-Q are our property. Other service marks, trademarks and trade names referred to in this Quarterly Report on Form 10-Q are the property of their respective owners.