Tandem (TNDM) CFO Reports RSU Vesting and Tax Withholding on Form 4
Rhea-AI Filing Summary
Leigh A. Vosseller, EVP & Chief Financial Officer of Tandem Diabetes Care, Inc. (TNDM), reported multiple transactions on 08/15/2025 related to vested restricted stock units (RSUs) and tax-withholding events. The filing shows two RSU vesting events that resulted in the acquisition of 1,503 and 1,495 shares each (total 2,998 shares) at $0 price upon vesting, increasing her direct holdings. The report also records share withholdings to satisfy tax obligations: 538 and 535 shares withheld at $10.82 per share. Following the transactions, total directly held common stock positions reported are 4,509 and 10,469 shares tied to two RSU awards, and 35,723–36,258 shares in various lines; additionally, 25,580 shares are held indirectly in the Leigh A. Vosseller Trust. The form was signed by an attorney-in-fact on 08/19/2025.
Positive
- None.
Negative
- None.
Insights
TL;DR: Insider received vested RSUs (2,998 shares) with partial withholding for taxes; overall holdings remain substantial and changes are routine.
The transactions are standard compensation-related events: two RSU vestings produced 1,503 and 1,495 shares issued on 08/15/2025, with the company withholding 538 and 535 shares to meet tax obligations at an indicated price of $10.82 per withheld share. No open-market sales occurred. The reporting shows both direct holdings from vested awards and indirect holdings via a trust (25,580 shares). These actions reflect compensation mechanics rather than discretionary liquidity events and are unlikely to be materially market-moving on their own.
TL;DR: Filing reflects compliant disclosure of insider compensation vesting and tax withholding; governance procedures appear followed.
The Form 4 documents RSU awards from the 2023 Long-Term Incentive Plan (awarded May 2023 and May 2024) vesting according to schedule and the company’s withholding to satisfy tax liabilities. The filing includes the trustee-held shares disclosure and is signed by an attorney-in-fact, indicating timely compliance with Section 16 reporting. There are no indications of open-market share sales or other atypical insider actions in this submission.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Restricted Stock Unit | 1,503 | $0.00 | -- |
| Exercise | Restricted Stock Unit | 1,495 | $0.00 | -- |
| Exercise | Common Stock | 1,503 | $0.00 | -- |
| Tax Withholding | Common Stock | 538 | $10.82 | $6K |
| Exercise | Common Stock | 1,495 | $0.00 | -- |
| Tax Withholding | Common Stock | 535 | $10.82 | $6K |
| holding | Common Stock | -- | -- | -- |
Footnotes (1)
- 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. The securities are held by the Leigh A. Vosseller Trust dated January 17, 2010, of which Leigh Vosseller is the Trustee. 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). 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 5/15/2024, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter. Awarded on May 23, 2024 pursuant to the 2023 Plan. 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.
