Leigh Vosseller serves as Executive at TANDEM DIABETES CARE INC, where they oversee executive responsibilities. Since joining the company, Leigh Vosseller has executed 131 insider transactions totaling $17.5M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 17, 2025 involved exercising options for 1,503 shares valued at $0.
Leigh Vosseller currently holds 37,226 shares of TANDEM DIABETES CARE INC (TNDM), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Leigh Vosseller has been a net seller of TNDM stock. They have purchased $530.2K and sold $17.0M worth of shares.
Leigh Vosseller's most recent insider trade was on Nov 17, 2025, when they sold 1,503 shares at $0.00 per share.
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| $18.61 |
| Discretionary |
| Nov 17, 2025 | TNDM | $10.0K | Payment | 536 | $18.61 | Discretionary |
| Nov 17, 2025 | TNDM | $0 | Option Exercise | 1,496 | $N/A | Discretionary |
| Aug 15, 2025 | TNDM | $0 | Option Exercise | 1,503 | $N/A | Discretionary |
| Aug 15, 2025 | TNDM | $5.8K | Payment | 535 | $10.82 | Discretionary |
| Aug 15, 2025 | TNDM | $5.8K | Payment | 538 | $10.82 | Discretionary |
| Aug 15, 2025 | TNDM | $0 | Option Exercise | 1,495 | $N/A | Discretionary |
| Aug 8, 2025 | TNDM | $149.4K | Purchase | 13,720 | $10.89 | Discretionary |
| Aug 15, 2024 | TNDM | $2.6K | Payment | 59 | $43.82 | Discretionary |
| Aug 15, 2024 | TNDM | $0 | Option Exercise | 163 | $N/A | Discretionary |
| Aug 15, 2024 | TNDM | $0 | Option Exercise | 474 | $N/A | Discretionary |
| Aug 15, 2024 | TNDM | $0 | Option Exercise | 1,503 | $N/A | Discretionary |
| Aug 15, 2024 | TNDM | $23.5K | Payment | 537 | $43.82 | Discretionary |
| Aug 15, 2024 | TNDM | $7.4K | Payment | 170 | $43.82 | Discretionary |
| May 28, 2024 | TNDM | $0 | Option Exercise | 406 | $N/A | Discretionary |
| May 28, 2024 | TNDM | $7.5K | Payment | 145 | $51.73 | Discretionary |
| May 15, 2024 | TNDM | $2.7K | Payment | 58 | $47.37 | Discretionary |
| May 15, 2024 | TNDM | $0 | Option Exercise | 474 | $N/A | Discretionary |
| May 15, 2024 | TNDM | $8.1K | Payment | 170 | $47.37 | Discretionary |
| May 15, 2024 | TNDM | $101.7K | Payment | 2,146 | $47.37 | Discretionary |
| May 15, 2024 | TNDM | $0 | Option Exercise | 162 | $N/A | Discretionary |
| May 15, 2024 | TNDM | $21.2K | Award | 1,358 | $15.64 | Discretionary |
| May 15, 2024 | TNDM | $0 | Option Exercise | 6,012 | $N/A | Discretionary |
| Feb 27, 2024 | TNDM | $3.9K | Payment | 142 | $27.34 | Discretionary |
| Feb 27, 2024 | TNDM | $0 | Option Exercise | 407 | $N/A | Discretionary |
| Feb 15, 2024 | TNDM | $0 | Option Exercise | 163 | $N/A | Discretionary |
| Feb 15, 2024 | TNDM | $1.6K | Payment | 67 | $24.29 | Discretionary |
| Feb 15, 2024 | TNDM | $0 | Option Exercise | 475 | $N/A | Discretionary |
| Feb 15, 2024 | TNDM | $4.7K | Payment | 195 | $24.29 | Discretionary |