Who
Leigh Vosseller
EVP & Chief Financial Officer
Company insider
Files Form 4 as: EVP & Chief Financial Officer, Tandem Diabetes Care.
In numbers
- Trades disclosed
- 285
- Buys
- 5
- Sells
- 19
- Bought
- $530K
- Sold
- $17.0M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 14 Jun 2018
- Last trade
- 15 Aug 2026
- Last filed
- 18 Aug 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code M | —1,496 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code F | $12K537 at $22.72 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code M | —2,624 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code M | —1,496 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code M | —2,624 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code F | $21K942 at $22.72 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code M | —1,496 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code M | —2,624 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code M | —1,496 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code F | $12K537 at $22.72 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code M | —2,624 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code F | $21K942 at $22.72 | filing |
| 29 May 2026filed 2 Jun 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code A | —62,657 at $0.00 | filing |
| 29 May 2026filed 2 Jun 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code A | —62,657 at $0.00 | filing |
| 15 May 2026filed 19 May 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code M | —1,503 at $0.00 | filing |
| 15 May 2026filed 19 May 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code M | —10,496 at $0.00 | filing |
| 15 May 2026filed 19 May 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code F | $6,923540 at $12.82 | filing |
| 15 May 2026filed 19 May 2026 | TNDM Tandem Diabetes CareMedical Devices | SEC FORM 4 Code M | —1,496 at $0.00 | filing |
| 15 May 2026filed 19 May 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code M | —1,503 at $0.00 | filing |
| 15 May 2026filed 19 May 2026 | TNDM Tandem Diabetes Careoption or derivative · Medical Devices | SEC FORM 4 Code M | —1,496 at $0.00 | filing |
News
Tandem Diabetes Care (TNDM) Following App Recall Is The Undervalued Case Still IntactTNDM · cedarnews.net · 18 Oct 2026
0 headlines in the last 90 days name Leigh Vosseller; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.