Vosseller Leigh (CIK 1726322) reported 33 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-18). Recent activity: Buy TNDM (1,496 shares), Sell TNDM (537 shares), Buy TNDM (2,624 shares), Sell TNDM (942 shares), Buy TNDM (1,503 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,496 | $0 |
| 2026-08-18 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 537 | $12,201 |
| 2026-08-18 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 2,624 | $0 |
| 2026-08-18 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 942 | $21,402 |
| 2026-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,503 | $0 |
| 2026-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 540 | $6,923 |
| 2026-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,496 | $0 |
| 2026-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 537 | $6,884 |
| 2026-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 10,496 | $0 |
| 2026-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 3,766 | $48,280 |
| 2026-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,336 | $14,562 |
| 2026-02-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 619 | $11,730 |
| 2026-02-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,503 | $0 |
| 2026-02-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,495 | $0 |
| 2026-02-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 616 | $11,673 |
| 2025-11-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,503 | $0 |
| 2025-11-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 538 | $10,012 |
| 2025-11-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,496 | $0 |
| 2025-11-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 536 | $9,975 |
| 2025-08-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,503 | $0 |
| 2025-08-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 538 | $5,821 |
| 2025-08-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,495 | $0 |
| 2025-08-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Sell | 535 | $5,789 |
| 2025-08-11 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 13,720 | $149,411 |
| 2025-05-19 | TANDEM DIABETES CARE INC (TNDM) | EVP & CHIEF FINANCIAL OFFICER | Buy | 1,359 | $21,255 |
Source: SEC Form 4 filings · as of 2026-08-18