Vosseller Leigh 4

4 · TANDEM DIABETES CARE INC · Filed Nov 19, 2025

Form 4

Period: 2025-11-17

EVP & CHIEF FINANCIAL OFFICER

Transactions

Tax Payment
Common Stock
2025-11-17$18.61/sh−538$10,012→ 36,688 total
Tax Payment
Common Stock
2025-11-17$18.61/sh−536$9,975→ 37,648 total
Exercise/Conversion
Common Stock
2025-11-17+1,496→ 38,184 total
Exercise/Conversion
Restricted Stock Unit
2025-11-17−1,503→ 3,006 total
→ Common Stock (1,503 underlying)
Exercise/Conversion
Common Stock
2025-11-17+1,503→ 37,226 total
Exercise/Conversion
Restricted Stock Unit
2025-11-17−1,496→ 8,973 total
→ Common Stock (1,496 underlying)

Holdings

Footnotes (7)

[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]The securities are held by the Leigh A. Vosseller Trust dated January 17, 2010, of which Leigh Vosseller is the Trustee.
[F3]Awarded on May 25, 2023 pursuant to the Tandem Diabetes Care Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan).
[F4]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.
[F5]RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2024, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.
[F6]Awarded on May 23, 2024 pursuant to the 2023 Plan.
[F7]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.

Documents

1 file