Morrison Susan 4

4 · TANDEM DIABETES CARE INC · Filed Feb 19, 2026

AI-generated summary of this filing

Updated Feb 19, 2026

Tandem Diabetes (TNDM) EVP Susan Morrison Exercises RSUs; Shares Withheld

What Happened

Susan Morrison, EVP & Chief Administrative Officer of Tandem Diabetes Care (TNDM), had restricted stock units (RSUs) convert on Feb 17, 2026. A total of 2,600 RSUs were converted into shares (1,503 + 1,097). To satisfy tax withholding, the company withheld 882 shares at $18.95/share (510 + 372), totaling $16,714. No shares were sold on the open market; the insider netted 1,718 shares (2,600 vested minus 882 withheld).

Key Details

Transaction date: 2026-02-17; Form filed: 2026-02-19 (timely).
Conversion: 2,600 RSUs converted (1,503 and 1,097 entries).
Tax withholding: 882 shares withheld at $18.95 each; total withholding value $16,714 (9,665 + 7,049).
Net shares delivered to insider: 1,718.
Transaction codes: M = exercise/conversion of derivative (RSU conversion); F = shares withheld to satisfy tax withholding. Footnotes indicate no sale of shares.
Awards referenced: granted under the 2023 Long‑Term Incentive Plan (awards dated May 25, 2023 and May 23, 2024) with the RSU vesting schedules outlined in the filing.

Context

These entries reflect RSU vesting/conversion and company withholding for taxes (a common, routine compensation event), not an open‑market sale or purchase. Per the filing, each RSU represents the right to one share (or cash in lieu, at the company’s discretion). This type of filing documents compensation settlement and tax withholding rather than a trading decision by the insider.

Form 4

Period: 2026-02-17

EVP & Chief Admin. Officer

Transactions

Exercise/Conversion
Common Stock
2026-02-17+1,503→ 42,420 total
Tax Payment
Common Stock
[F1]
2026-02-17$18.95/sh−510$9,665→ 41,910 total
Exercise/Conversion
Common Stock
2026-02-17+1,097→ 43,007 total
Tax Payment
Common Stock
[F1]
2026-02-17$18.95/sh−372$7,049→ 42,635 total
Exercise/Conversion
Restricted Stock Unit
[F2][F3][F4]
2026-02-17−1,503→ 1,503 total
→ Common Stock (1,503 underlying)
Exercise/Conversion
Restricted Stock Unit
[F5][F3][F6]
2026-02-17−1,097→ 5,484 total
→ Common Stock (1,097 underlying)

Footnotes (6)

[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 25, 2023 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 5/15/2024, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.
[F5]Awarded on May 23, 2024 pursuant to the 2023 Plan.
[F6]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.

Signature

/s/ Shannon M. Hansen, Attorney-in-Fact for Susan M. Morrison|2026-02-19

1 file