TNDM · Tandem Diabetes Care Inc · Insider Trading
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-08-15 | Carpenter Rick |
Chief Technology Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
820 |
| 2026-08-15 | Vosseller Leigh |
EVP & CHIEF FINANCIAL OFFICER |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
537 |
| 2026-08-15 | Kyrillos Jean-Claude |
Senior Vice President |
Convert↑
|
Common Stock
|
1,010 |
| 2026-08-15 | Sheridan John F |
Director, PRESIDENT & CEO |
Convert↑
|
Common Stock
|
9,934 |
| 2026-08-15 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Convert↑
|
Common Stock
|
1,097 |
| 2026-08-15 | Vosseller Leigh |
EVP & CHIEF FINANCIAL OFFICER |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
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). 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. One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,496 |
| 2026-08-15 | Carpenter Rick |
Chief Technology Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
457 |
| 2026-08-15 | Morrison Susan |
EVP & Chief Admin. Officer |
Convert↑
|
Common Stock
|
1,097 |
| 2026-08-15 | Morrison Susan |
EVP & Chief Admin. Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
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). 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. One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,097 |
| 2026-08-15 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
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). 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. One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,097 |
| 2026-08-15 | Sheridan John F |
Director, PRESIDENT & CEO |
Convert↑
|
Common Stock
|
5,982 |
| 2026-08-15 | Vosseller Leigh |
EVP & CHIEF FINANCIAL OFFICER |
Convert↑
|
Common Stock
|
2,624 |
| 2026-08-15 | Kyrillos Jean-Claude |
Senior Vice President |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
535 |
| 2026-08-15 | Morrison Susan |
EVP & Chief Admin. Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
495 |
| 2026-08-15 | Carpenter Rick |
Chief Technology Officer |
Convert↑
|
Common Stock
|
897 |
| 2026-08-15 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Convert↑
|
Common Stock
|
1,917 |
| 2026-08-15 | Morrison Susan |
EVP & Chief Admin. Officer |
Convert↑
|
Common Stock
|
1,730 |
| 2026-08-15 | Vosseller Leigh |
EVP & CHIEF FINANCIAL OFFICER |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
942 |
| 2026-08-15 | Sheridan John F |
Director, PRESIDENT & CEO |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
5,055 |
| 2026-08-15 | Morrison Susan |
EVP & Chief Admin. Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
314 |
| 2026-08-15 | Carpenter Rick |
Chief Technology Officer |
Convert↑
|
Common Stock
|
1,610 |
| 2026-08-15 | Hansen Shannon Marie |
EVP & Chief Legal Officer |
Convert↑
|
Common Stock
|
1,917 |
| 2026-08-15 | Vosseller Leigh |
EVP & CHIEF FINANCIAL OFFICER |
Convert↑
|
Common Stock
|
1,496 |
| 2026-08-15 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on May 30, 2025 pursuant to 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. One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,917 |
| 2026-08-15 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
589 |
| 2026-08-15 | Sheridan John F |
Director, PRESIDENT & CEO |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on May 30, 2025 pursuant to 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. One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
9,934 |
| 2026-08-15 | Morrison Susan |
EVP & Chief Admin. Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on May 30, 2025 pursuant to 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. One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,730 |
| 2026-08-15 | Sheridan John F |
Director, PRESIDENT & CEO |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
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). 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. One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
5,982 |
| 2026-08-15 | Hansen Shannon Marie |
EVP & Chief Legal Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
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). 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. One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,097 |
| 2026-08-15 | Carpenter Rick |
Chief Technology Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
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). 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. One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
897 |
| 2026-08-15 | Carpenter Rick |
Chief Technology Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on May 30, 2025 pursuant to 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. One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,610 |
| 2026-08-15 | Hansen Shannon Marie |
EVP & Chief Legal Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
559 |
| 2026-08-15 | Hansen Shannon Marie |
EVP & Chief Legal Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
976 |
| 2026-08-15 | Vosseller Leigh |
EVP & CHIEF FINANCIAL OFFICER |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on May 30, 2025 pursuant to 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. One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
2,624 |
| 2026-08-15 | Sheridan John F |
Director, PRESIDENT & CEO |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
3,044 |
| 2026-08-15 | Hansen Shannon Marie |
EVP & Chief Legal Officer |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on May 30, 2025 pursuant to 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. One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,917 |
| 2026-08-15 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
1,029 |
| 2026-08-15 | Kyrillos Jean-Claude |
Senior Vice President |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on May 30, 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. One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
1,010 |
| 2026-08-15 | Hansen Shannon Marie |
EVP & Chief Legal Officer |
Convert↑
|
Common Stock
|
1,097 |
| 2026-07-15 | Kyrillos Jean-Claude |
Senior Vice President |
Convert↓
Filing footnotes — Restricted Stock Unit (Direct)
Awarded on July 15, 2024 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. One-third of the RSUs granted on July 14, 2024 vested on July 14, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
3,636 |
| 2026-07-15 | Kyrillos Jean-Claude |
Senior Vice President |
Convert↑
|
Common Stock
|
3,636 |
| 2026-07-15 | Kyrillos Jean-Claude |
Senior Vice President |
Tax↓
Filing footnotes — Common Stock (Direct)
Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold. |
Common Stock
|
1,926 |
| 2026-06-02 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Gift↑
Filing footnotes — Common Stock (Indirect)
The reported transaction was a transfer of shares from the Reporting Person's direct holdings to The Gasser Family Trust dated September 1, 2011 for no consideration. The securities are held by The Gasser Family Trust dated September 1, 2011, of which the Reporting Person is a co-trustee. |
Common Stock
(I)
|
7,160 |
| 2026-06-02 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Gift↓
Filing footnotes — Common Stock (Direct)
The reported transaction was a transfer of shares from the Reporting Person's direct holdings to The Gasser Family Trust dated September 1, 2011 for no consideration. |
Common Stock
|
7,160 |
| 2026-05-29 | Kyrillos Jean-Claude |
Senior Vice President |
Award↑
Filing footnotes — Restricted Stock Unit (Direct)
Each restricted stock unit (RSU) represents a contingent right to receive either one share of the Issuer's common stock or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan). One-third of such RSUs shall vest on 5/29/2027, and the remaining RSUs shall vest in eight (8) equal quarterly installments on the 15th of the month thereafter subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
29,136 |
| 2026-05-29 | Vosseller Leigh |
EVP & CHIEF FINANCIAL OFFICER |
Award↑
Filing footnotes — Restricted Stock Unit (Direct)
Each restricted stock unit (RSU) represents a contingent right to receive either one share of the Issuer's common stock or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan). One-third of such RSUs shall vest on 5/29/2027, and the remaining RSUs shall vest in eight (8) equal quarterly installments on the 15th of the month thereafter subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
62,657 |
| 2026-05-29 | Sheridan John F |
Director, PRESIDENT & CEO |
Award↑
Filing footnotes — Restricted Stock Unit (Direct)
Each restricted stock unit (RSU) represents a contingent right to receive either one share of the Issuer's common stock or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan). One-third of such RSUs shall vest on 5/29/2027, and the remaining RSUs shall vest in eight (8) equal quarterly installments on the 15th of the month thereafter. |
Restricted Stock Unit
|
191,103 |
| 2026-05-29 | Morrison Susan |
EVP & Chief Admin. Officer |
Award↑
Filing footnotes — Restricted Stock Unit (Direct)
Each restricted stock unit (RSU) represents a contingent right to receive either one share of the Issuer's common stock or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan). One-third of such RSUs shall vest on 5/29/2027, and the remaining RSUs shall vest in eight (8) equal quarterly installments on the 15th of the month thereafter subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
29,136 |
| 2026-05-29 | Carpenter Rick |
Chief Technology Officer |
Award↑
Filing footnotes — Restricted Stock Unit (Direct)
Each restricted stock unit (RSU) represents a contingent right to receive either one share of the Issuer's common stock or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan). One-third of such RSUs shall vest on 5/29/2027, and the remaining RSUs shall vest in eight (8) equal quarterly installments on the 15th of the month thereafter subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
26,003 |
| 2026-05-29 | Gasser Elizabeth Anne |
EVP, Chief Strategy Officer |
Award↑
Filing footnotes — Restricted Stock Unit (Direct)
Each restricted stock unit (RSU) represents a contingent right to receive either one share of the Issuer's common stock or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan). One-third of such RSUs shall vest on 5/29/2027, and the remaining RSUs shall vest in eight (8) equal quarterly installments on the 15th of the month thereafter subject to the terms of the 2023 Plan. |
Restricted Stock Unit
|
29,136 |