Mark D. Novara - 17 Feb 2026 Form 4 Insider Report for TANDEM DIABETES CARE INC (TNDM)

Role
EVP & CHIEF COMMERCIAL OFFICER
Signature
/s/ Shannon M. Hansen, Attorney-in-Fact for Mark D. Novara
Issuer symbol
TNDM
Transactions as of
17 Feb 2026
Net transactions value
-$1,175
Form type
4
Filing time
19 Feb 2026, 16:36:33 UTC
Previous filing
17 Dec 2025
Next filing
09 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Novara Mark David EVP & CHIEF COMMERCIAL OFFICER 12400 HIGH BLUFF DRIVE, SAN DIEGO /s/ Shannon M. Hansen, Attorney-in-Fact for Mark D. Novara 19 Feb 2026 0002000342

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TNDM Common Stock Options Exercise $0 +77 +0.21% $0.000000 36,033 17 Feb 2026 Direct
transaction TNDM Common Stock Tax liability $1,175 -62 -0.17% $18.95 35,971 17 Feb 2026 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TNDM Restricted Stock Unit Options Exercise $0 -77 -17% $0.000000 380 17 Feb 2026 Common Stock 77 Direct F2, F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld by Tandem Diabetes Care Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.
F2 Awarded on May 23, 2024 pursuant to the Tandem Diabetes Care Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan).
F3 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.
F4 RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2025, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.