Tandem Diabetes Care Inc (TNDM) insider trading.
In Q3 2026, insiders at Tandem Diabetes Care Inc reported 28 non-derivative transactions on 8 Forms 3, 4 and 5: 0 open-market purchases and 0 sales.
- Transactions
- 28
- Purchases (P)
- 0
- Sales (S)
- 0
- Net shares, P minus S
- 0
- Insiders
- 7
- Last filed
- 2026-08-18
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Hansen Shannon Marie | Officer · EVP & Chief Legal Officer | 4 | 0 | 0 |
| Carpenter Rick | Officer · EVP & Chief Technology Officer | 4 | 0 | 0 |
| Gasser Elizabeth Anne | Officer · EVP, Chief Strategy Officer | 4 | 0 | 0 |
| Kyrillos Jean-Claude | Officer · EVP & Chief Operating Officer | 4 | 0 | 0 |
| Morrison Susan | Officer · EVP & Chief Admin. Officer | 4 | 0 | 0 |
| Sheridan John F | Director, Officer · PRESIDENT & CEO | 4 | 0 | 0 |
| Vosseller Leigh | Officer · EVP & CHIEF FINANCIAL OFFICER | 4 | 0 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-15 | Hansen Shannon Marie | F (D) | 976 | $22.72 | 31,650 | Form 4 |
| 2026-08-15 | Hansen Shannon Marie | M (A) | 1,917 | $0 | 32,626 | Form 4 |
| 2026-08-15 | Hansen Shannon Marie | F (D) | 559 | $22.72 | 30,709 | Form 4 |
| 2026-08-15 | Hansen Shannon Marie | M (A) | 1,097 | $0 | 31,268 | Form 4 |
| 2026-08-15 | Carpenter Rick | F (D) | 820 | $22.72 | 32,148 | Form 4 |
| 2026-08-15 | Carpenter Rick | M (A) | 897 | $0 | 31,815 | Form 4 |
| 2026-08-15 | Carpenter Rick | F (D) | 457 | $22.72 | 31,358 | Form 4 |
| 2026-08-15 | Carpenter Rick | M (A) | 1,610 | $0 | 32,968 | Form 4 |
| 2026-08-15 | Gasser Elizabeth Anne | F (D) | 1,029 | $22.72 | 1,396 | Form 4 |
| 2026-08-15 | Gasser Elizabeth Anne | M (A) | 1,097 | $0 | 1,097 | Form 4 |
| 2026-08-15 | Gasser Elizabeth Anne | F (D) | 589 | $22.72 | 508 | Form 4 |
| 2026-08-15 | Gasser Elizabeth Anne | M (A) | 1,917 | $0 | 2,425 | Form 4 |
| 2026-08-15 | Kyrillos Jean-Claude | M (A) | 1,010 | $0 | 30,825 | Form 4 |
| 2026-08-15 | Kyrillos Jean-Claude | F (D) | 535 | $22.72 | 30,290 | Form 4 |
| 2026-08-15 | Morrison Susan | F (D) | 314 | $22.72 | 51,553 | Form 4 |
| 2026-08-15 | Morrison Susan | M (A) | 1,097 | $0 | 51,867 | Form 4 |
| 2026-08-15 | Morrison Susan | M (A) | 1,730 | $0 | 53,283 | Form 4 |
| 2026-08-15 | Morrison Susan | F (D) | 495 | $22.72 | 52,788 | Form 4 |
| 2026-08-15 | Sheridan John F | F (D) | 5,055 | $22.72 | 160,260 | Form 4 |
| 2026-08-15 | Sheridan John F | M (A) | 9,934 | $0 | 165,315 | Form 4 |
| 2026-08-15 | Sheridan John F | F (D) | 3,044 | $22.72 | 155,381 | Form 4 |
| 2026-08-15 | Sheridan John F | M (A) | 5,982 | $0 | 158,425 | Form 4 |
| 2026-08-15 | Vosseller Leigh | F (D) | 942 | $22.72 | 52,040 | Form 4 |
| 2026-08-15 | Vosseller Leigh | M (A) | 2,624 | $0 | 52,982 | Form 4 |
| 2026-08-15 | Vosseller Leigh | F (D) | 537 | $22.72 | 50,358 | Form 4 |
| 2026-08-15 | Vosseller Leigh | M (A) | 1,496 | $0 | 50,895 | Form 4 |
| 2026-07-15 | Kyrillos Jean-Claude | M (A) | 3,636 | $0 | 31,741 | Form 4 |
| 2026-07-15 | Kyrillos Jean-Claude | F (D) | 1,926 | $15.28 | 29,815 | Form 4 |
Transaction codes in this quarter
Get TNDM insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1438133&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · TNDM company page · Tandem Diabetes Care Inc on SEC.gov
Questions
Are insiders buying or selling Tandem Diabetes Care Inc (TNDM)?
In Q3 2026, insiders at Tandem Diabetes Care Inc reported 28 non-derivative transactions on 8 Forms 3, 4 and 5: 0 open-market purchases and 0 sales. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Tandem Diabetes Care Inc insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/tndm.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.