X0508 4 2025-11-07 0 0001438133 TANDEM DIABETES CARE INC TNDM 0001944884 Beaver Sandra 12400 HIGH BLUFF DRIVE SAN DIEGO CA 92130 1 0 0 0 0 Restricted Stock Unit 2025-11-07 4 A 0 20242 0 A Common Stock 20242 20242 D Awarded on November 7, 2025 pursuant to the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan). Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2023 Plan. RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 11/15/2026, and the remaining shares shall vest in two (2) equal annual installments thereafter. /s/ Shannon M. Hansen, Attorney-in-Fact for Sandra Beaver 2025-11-25