TANDEM DIABETES CARE INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Tax Withholding | 3,843 | $22.11 | $84,969 | 35,956 | Dec 15, 2025 |
| Carpenter Rick | Chief Technology Officer | Tax Withholding | 207 | $22.11 | $4,577 | 24,252 | Dec 15, 2025 |
| Gasser Elizabeth Anne | EVP, Chief Strategy Officer | Other | 3,000 | — | — | — | Dec 4, 2025 |
| Morrison Susan | EVP & Chief Admin. Officer | Tax Withholding | 314 | $18.61 | $5,844 | 40,917 | Nov 17, 2025 |
| Sheridan John F | PRESIDENT & CEO | Option Exercise | 5,982 | — | — | 120,638 | Nov 17, 2025 |
| Gasser Elizabeth Anne | EVP, Chief Strategy Officer | Tax Withholding | 805 | $18.61 | $14,981 | 2,491 | Nov 17, 2025 |
| Carpenter Rick | Chief Technology Officer | Tax Withholding | 456 | $18.61 | $8,486 | 24,053 | Nov 17, 2025 |
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Option Exercise | 76 | — | — | 32,424 | Nov 17, 2025 |
| Kyrillos Jean-Claude | EVP & Chief Operating Officer | Award / Grant | 160 | $15.59 | $2,494 | 22,544 | Nov 17, 2025 |
| Vosseller Leigh | EVP & CHIEF FINANCIAL OFFICER | Option Exercise | 1,503 | — | — | 37,226 | Nov 17, 2025 |
| Hansen Shannon Marie | EVP & Chief Legal Officer | Option Exercise | 1,437 | — | — | 21,286 | Nov 17, 2025 |
| Kyrillos Jean-Claude | EVP & Chief Operating Officer | Tax Withholding | 1,301 | $14.75 | $19,190 | 22,384 | Oct 15, 2025 |
| Carpenter Rick | Chief Technology Officer | Tax Withholding | 207 | $12.09 | $2,503 | 22,566 | Sep 15, 2025 |
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Option Exercise | 7,415 | — | — | 36,214 | Sep 15, 2025 |
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Tax Withholding | 40 | $10.82 | $433 | 28,799 | Aug 15, 2025 |
| Morrison Susan | EVP & Chief Admin. Officer | Tax Withholding | 314 | $10.82 | $3,397 | 39,062 | Aug 15, 2025 |
| Sheridan John F | PRESIDENT & CEO | Option Exercise | 5,471 | — | — | 111,798 | Aug 15, 2025 |
| Carpenter Rick | Chief Technology Officer | Option Exercise | 1,437 | — | — | 22,656 | Aug 15, 2025 |
| Vosseller Leigh | EVP & CHIEF FINANCIAL OFFICER | Option Exercise | 1,503 | — | — | 35,301 | Aug 15, 2025 |
| Hansen Shannon Marie | EVP & Chief Legal Officer | Tax Withholding | 393 | $10.82 | $4,252 | 18,709 | Aug 15, 2025 |
| Gasser Elizabeth Anne | EVP, Chief Strategy Officer | Tax Withholding | 588 | $10.82 | $6,362 | 1,207 | Aug 15, 2025 |
| Sheridan John F | PRESIDENT & CEO | Purchase | 10,000 | $10.23 | $102,300 | 106,327 | Aug 11, 2025 |
| Vosseller Leigh | EVP & CHIEF FINANCIAL OFFICER | Purchase | 13,720 | $10.89 | $149,411 | 25,580 | Aug 8, 2025 |
| Kyrillos Jean-Claude | EVP & Chief Operating Officer | Tax Withholding | 5,205 | $15.20 | $79,116 | 20,049 | Jul 15, 2025 |
| Carpenter Rick | Chief Technology Officer | Option Exercise | 406 | — | — | 21,426 | Jun 16, 2025 |
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Tax Withholding | 3,846 | $20.76 | $79,843 | 28,763 | Jun 16, 2025 |
| Cha Myoungil | — | Option Exercise | 1,749 | — | — | 13,699 | Jun 16, 2025 |
| Malagueira Joao Paulo Falcao | — | Option Exercise | 1,749 | — | — | 13,699 | Jun 16, 2025 |
| Allen Dick | — | Gift | 1,000 | $19.88 | $19,880 | — | Jun 2, 2025 |
| Gasser Elizabeth Anne | EVP, Chief Strategy Officer | Other | 11,200 | — | — | 22,949 | May 29, 2025 |
| Sodhi Rajwant | — | Option Exercise | 4,387 | $20.64 | $90,548 | 15,521 | May 22, 2025 |
| McGroddy-Goetz Kathleen | — | Option Exercise | 4,387 | $20.64 | $90,548 | 17,853 | May 22, 2025 |
| Cha Myoungil | — | Option Exercise | 4,387 | $20.64 | $90,548 | 11,950 | May 22, 2025 |
| ROBERTSON REBECCA B | — | Option Exercise | 4,387 | $20.64 | $90,548 | 13,783 | May 22, 2025 |
| Howell Peyton R | — | Option Exercise | 4,387 | $20.64 | $90,548 | 21,077 | May 22, 2025 |
| TWOMEY CHRISTOPHER J | — | Option Exercise | 4,387 | $20.64 | $90,548 | 15,675 | May 22, 2025 |
| Malagueira Joao Paulo Falcao | — | Option Exercise | 4,387 | $20.64 | $90,548 | 11,950 | May 22, 2025 |
| Allen Dick | — | Option Exercise | 4,387 | $20.64 | $90,548 | 19,387 | May 22, 2025 |
| Hansen Shannon Marie | EVP & Chief Legal Officer | Tax Withholding | 1,570 | $22.70 | $35,639 | 16,742 | May 15, 2025 |
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Award / Grant | 870 | $19.30 | $16,791 | 25,004 | May 15, 2025 |
| Morrison Susan | EVP & Chief Admin. Officer | Tax Withholding | 430 | $22.70 | $9,761 | 34,074 | May 15, 2025 |
| Gasser Elizabeth Anne | EVP, Chief Strategy Officer | Option Exercise | 162 | — | — | 8,332 | May 15, 2025 |
| Carpenter Rick | Chief Technology Officer | Tax Withholding | 515 | $22.70 | $11,691 | 18,716 | May 15, 2025 |
| Sheridan John F | PRESIDENT & CEO | Tax Withholding | 12,152 | $22.70 | $275,850 | 96,327 | May 15, 2025 |
| Kyrillos Jean-Claude | EVP & Chief Operating Officer | Award / Grant | 171 | $19.30 | $3,300 | 10,709 | May 15, 2025 |
| Vosseller Leigh | EVP & CHIEF FINANCIAL OFFICER | Tax Withholding | 58 | $22.70 | $1,317 | 28,688 | May 15, 2025 |
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Tax Withholding | 2,739 | $19.17 | $52,507 | 24,134 | Mar 17, 2025 |
| Carpenter Rick | Chief Technology Officer | Tax Withholding | 146 | $19.17 | $2,799 | 16,392 | Mar 17, 2025 |
| Kyrillos Jean-Claude | EVP & Chief Operating Officer | Purchase | 10,538 | $18.12 | $190,949 | 10,538 | Mar 7, 2025 |
| Morrison Susan | EVP & Chief Admin. Officer | Option Exercise | 1,380 | — | — | 27,693 | Feb 25, 2025 |