TNDM: 10-Q financial filing

tndm-20260930 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ____________________________________________________________________________________________ FORM 10-Q _____________________________________________________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to Commission File Number 001-36189 _____________________________________________________________________________________________ Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter) _____________________________________________________________________________________________ Delaware 20-4327508 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 12400 High Bluff Drive 92130 San Diego, California (Zip Code) (Address of principal executive offices) ( 858 ) 366-6900 (Registrant’s telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Title of Each Class Trading Symbol(s) Name of Exchange on Which Registered Common Stock, par value $0.001 per share TNDM Nasdaq Global Market _____________________________________________________________________________________________ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ☐ I