Company / CIK 0001438133
TANDEM DIABETES CARE INC
- Ticker
- TNDM
- Size, estimated from filings
- Small cap ($300M – $2B)
- Insiders on file
- 17
- Members of Congress who traded it
- 2
- Federal contracts on record
- none matched
- Lobbying filings on record
- 4
- SEC filings
- EDGAR ↗
- Latest trade on record
- October 15, 2026
TANDEM DIABETES CARE INC (TNDM) has 17 insiders on file who disclosed 257 transactions in the last 12 months (0 open-market buys, 71 sales, about $2.0M at reported prices), and 3 congressional trades in its stock are on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name, and 2 lobbying filings naming it as client report $100K in 2026.
TANDEM DIABETES CARE INC in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
8 people account for the disclosed buying and selling in TANDEM DIABETES CARE INC over the last 12 months; the most active is Sheridan John F with $693K.
Lobbying spend by quarter
How much has TANDEM DIABETES CARE INC reported spending on federal lobbying?
TANDEM DIABETES CARE INC reported $200K in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders
| Name | Role | Rows | Bought | Sold | Last filed |
|---|---|---|---|---|---|
| Kyrillos Jean-Claude | EVP & Chief Operating Officer | 24 | 0 | 7 | October 19, 2026 |
| Hansen Shannon Marie | EVP & Chief Legal Officer | 36 | 0 | 11 | August 18, 2026 |
| Vosseller Leigh | EVP & CHIEF FINANCIAL OFFICER | 29 | 0 | 9 | August 18, 2026 |
| Carpenter Rick | Chief Technology Officer | 33 | 0 | 10 | August 18, 2026 |
| Gasser Elizabeth Anne | EVP, Chief Strategy Officer | 34 | 0 | 9 | August 18, 2026 |
| Sheridan John F | PRESIDENT & CEO | 29 | 0 | 9 | August 18, 2026 |
| Morrison Susan | EVP & Chief Admin. Officer | 29 | 0 | 9 | August 18, 2026 |
| Beaver Sandra | Director | 2 | 0 | 0 | May 22, 2026 |
| Cha Myoungil | Director | 3 | 0 | 0 | May 22, 2026 |
| TWOMEY CHRISTOPHER J | Director | 3 | 0 | 0 | May 22, 2026 |
| ROBERTSON REBECCA B | Director | 3 | 0 | 0 | May 22, 2026 |
| McGroddy-Goetz Kathleen | Director | 3 | 0 | 0 | May 22, 2026 |
| Sodhi Rajwant | Director | 3 | 0 | 0 | May 22, 2026 |
| Malagueira Joao Paulo Falcao | Director | 3 | 0 | 0 | May 22, 2026 |
| Howell Peyton R | Director | 3 | 0 | 0 | May 22, 2026 |
| Allen Dick | Insider | 3 | 0 | 0 | May 22, 2026 |
| Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | 20 | 0 | 8 | May 19, 2026 |
Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.
Members of Congress who traded TNDM
From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the TNDM page.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr. | Representative (CA, District 31), Democrat | 2 | 2 | 0 | $2,002–$30K | September 29, 2026 |
| Josh Gottheimer | Representative (NJ, District 5), Democrat | 1 | 1 | 0 | $1,001–$15K | September 22, 2025 |
Insider transactions
| Filer | Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Kyrillos Jean-Claude | TNDM | Option / conversion M | October 15, 2026 | October 19, 2026 | 4d | 3,637 | — | — | derivative | Form 4 ↗ | |
| Kyrillos Jean-Claude | TNDM | Sell F | October 15, 2026 | October 19, 2026 | 4d | 1,926 | $17 | $32K | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | October 15, 2026 | October 19, 2026 | 4d | 3,637 | — | — | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 2,624 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,496 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 942 | $23 | $21K | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 2,624 | — | — | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 537 | $23 | $12K | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,496 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 9,934 | — | — | derivative | Form 4 ↗ | |
| Sheridan John F | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 5,982 | — | — | derivative | Form 4 ↗ | |
| Sheridan John F | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 5,055 | $23 | $115K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 9,934 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 3,044 | $23 | $69K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 5,982 | — | — | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,730 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 495 | $23 | $11K | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,730 | — | — | Form 4 ↗ | ||
| Morrison Susan | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 314 | $23 | $7,134 | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,097 | — | — | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,010 | — | — | derivative | Form 4 ↗ | |
| Kyrillos Jean-Claude | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 535 | $23 | $12K | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,010 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,917 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 1,029 | $23 | $23K | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,917 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 589 | $23 | $13K | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,097 | — | — | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,610 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 897 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 820 | $23 | $19K | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,610 | — | — | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 457 | $23 | $10K | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 897 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,917 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 976 | $23 | $22K | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,917 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Sell F | August 15, 2026 | August 18, 2026 | 3d | 559 | $23 | $13K | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | August 15, 2026 | August 18, 2026 | 3d | 1,097 | — | — | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | July 15, 2026 | July 17, 2026 | 2d | 3,636 | — | — | derivative | Form 4 ↗ | |
| Kyrillos Jean-Claude | TNDM | Sell F | July 15, 2026 | July 17, 2026 | 2d | 1,926 | $15 | $29K | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | July 15, 2026 | July 17, 2026 | 2d | 3,636 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Other G | June 2, 2026 | June 4, 2026 | 2d | 7,160 | — | — | indirect | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Other G | June 2, 2026 | June 4, 2026 | 2d | 7,160 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Other A | May 29, 2026 | June 2, 2026 | 4d | 191,103 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Other A | May 29, 2026 | June 2, 2026 | 4d | 29,136 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Other A | May 29, 2026 | June 2, 2026 | 4d | 62,657 | — | — | derivative | Form 4 ↗ | |
| Kyrillos Jean-Claude | TNDM | Other A | May 29, 2026 | June 2, 2026 | 4d | 29,136 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Other A | May 29, 2026 | June 2, 2026 | 4d | 29,136 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Other A | May 29, 2026 | June 2, 2026 | 4d | 26,003 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Other A | May 29, 2026 | June 2, 2026 | 4d | 29,136 | — | — | derivative | Form 4 ↗ | |
| Allen Dick | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| Allen Dick | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| Allen Dick | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| Howell Peyton R | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| Howell Peyton R | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| Howell Peyton R | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| Malagueira Joao Paulo Falcao | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| Malagueira Joao Paulo Falcao | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| Malagueira Joao Paulo Falcao | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| Beaver Sandra | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 5,110 | — | — | derivative | Form 4 ↗ | |
| Sodhi Rajwant | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| Sodhi Rajwant | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| Sodhi Rajwant | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| McGroddy-Goetz Kathleen | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| McGroddy-Goetz Kathleen | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| McGroddy-Goetz Kathleen | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| ROBERTSON REBECCA B | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| ROBERTSON REBECCA B | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| ROBERTSON REBECCA B | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| TWOMEY CHRISTOPHER J | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| TWOMEY CHRISTOPHER J | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| TWOMEY CHRISTOPHER J | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| Cha Myoungil | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | derivative | Form 4 ↗ | |
| Cha Myoungil | TNDM | Other A | May 20, 2026 | May 22, 2026 | 2d | 10,220 | — | — | derivative | Form 4 ↗ | |
| Cha Myoungil | TNDM | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 8,759 | — | — | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 6,439 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 898 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,437 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Other A | May 15, 2026 | May 19, 2026 | 4d | 1,336 | $11 | $15K | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 3,277 | $13 | $42K | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 6,439 | — | — | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 457 | $13 | $5,859 | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 898 | — | — | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 732 | $13 | $9,384 | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,437 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 7,667 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,503 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Other A | May 15, 2026 | May 19, 2026 | 4d | 1,337 | $11 | $15K | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 4,114 | $13 | $53K | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 7,667 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 589 | $13 | $7,551 | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,097 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 807 | $13 | $10K | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,503 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 7,667 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,437 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Other A | May 15, 2026 | May 19, 2026 | 4d | 1,886 | $11 | $21K | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 3,901 | $13 | $50K | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 7,667 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 559 | $13 | $7,166 | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,097 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 732 | $13 | $9,384 | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,437 | — | — | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 4,038 | — | — | derivative | Form 4 ↗ | |
| Kyrillos Jean-Claude | TNDM | Other A | May 15, 2026 | May 19, 2026 | 4d | 434 | $11 | $4,731 | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 2,139 | $13 | $27K | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 4,038 | — | — | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 6,923 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,503 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Other A | May 15, 2026 | May 19, 2026 | 4d | 1,336 | $11 | $15K | Form 4 ↗ | ||
| Morrison Susan | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 1,980 | $13 | $25K | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 6,923 | — | — | Form 4 ↗ | ||
| Morrison Susan | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 314 | $13 | $4,025 | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,097 | — | — | Form 4 ↗ | ||
| Morrison Susan | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 430 | $13 | $5,513 | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,503 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 39,735 | — | — | derivative | Form 4 ↗ | |
| Sheridan John F | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 5,982 | — | — | derivative | Form 4 ↗ | |
| Sheridan John F | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 5,472 | — | — | derivative | Form 4 ↗ | |
| Sheridan John F | TNDM | Other A | May 15, 2026 | May 19, 2026 | 4d | 1,336 | $11 | $15K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 18,944 | $13 | $243K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 39,735 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 3,044 | $13 | $39K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 5,982 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 2,785 | $13 | $36K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 5,472 | — | — | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 10,496 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,496 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,503 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Other A | May 15, 2026 | May 19, 2026 | 4d | 1,336 | $11 | $15K | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 3,766 | $13 | $48K | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 10,496 | — | — | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 537 | $13 | $6,884 | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,496 | — | — | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 540 | $13 | $6,923 | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 1,503 | — | — | Form 4 ↗ | ||
| Novara Mark David | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 10,496 | — | — | derivative | Form 4 ↗ | |
| Novara Mark David | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 76 | — | — | derivative | Form 4 ↗ | |
| Novara Mark David | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 7,854 | $13 | $101K | Form 4 ↗ | ||
| Novara Mark David | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 10,496 | — | — | Form 4 ↗ | ||
| Novara Mark David | TNDM | Sell F | May 15, 2026 | May 19, 2026 | 4d | 57 | $13 | $731 | Form 4 ↗ | ||
| Novara Mark David | TNDM | Option / conversion M | May 15, 2026 | May 19, 2026 | 4d | 76 | — | — | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | April 15, 2026 | April 17, 2026 | 2d | 3,636 | — | — | derivative | Form 4 ↗ | |
| Kyrillos Jean-Claude | TNDM | Sell F | April 15, 2026 | April 17, 2026 | 2d | 1,926 | $21 | $40K | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | April 15, 2026 | April 17, 2026 | 2d | 3,636 | — | — | Form 4 ↗ | ||
| Novara Mark David | TNDM | Option / conversion M | March 16, 2026 | March 18, 2026 | 2d | 7,414 | — | — | derivative | Form 4 ↗ | |
| Novara Mark David | TNDM | Sell S | March 17, 2026 | March 18, 2026 | 1d | 187 | $23 | $4,310 | Form 4 ↗ | ||
| Novara Mark David | TNDM | Sell F | March 16, 2026 | March 18, 2026 | 2d | 5,540 | $22 | $120K | Form 4 ↗ | ||
| Novara Mark David | TNDM | Option / conversion M | March 16, 2026 | March 18, 2026 | 2d | 7,414 | — | — | Form 4 ↗ | ||
| Novara Mark David | TNDM | Sell S | March 5, 2026 | March 9, 2026 | 4d | 2 | $23 | $46 | 10b5-1 plan | Form 4 ↗ | |
| Carpenter Rick | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 897 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,437 | — | — | derivative | Form 4 ↗ | |
| Carpenter Rick | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 504 | $19 | $9,551 | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 897 | — | — | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 808 | $19 | $15K | Form 4 ↗ | ||
| Carpenter Rick | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,437 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,503 | — | — | derivative | Form 4 ↗ | |
| Gasser Elizabeth Anne | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 647 | $19 | $12K | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,097 | — | — | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 887 | $19 | $17K | Form 4 ↗ | ||
| Gasser Elizabeth Anne | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,503 | — | — | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,503 | — | — | derivative | Form 4 ↗ | |
| Morrison Susan | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 372 | $19 | $7,049 | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,097 | — | — | Form 4 ↗ | ||
| Morrison Susan | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 510 | $19 | $9,665 | Form 4 ↗ | ||
| Morrison Susan | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,503 | — | — | Form 4 ↗ | ||
| Novara Mark David | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 77 | — | — | derivative | Form 4 ↗ | |
| Novara Mark David | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 62 | $19 | $1,175 | Form 4 ↗ | ||
| Novara Mark David | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 77 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 5,983 | — | — | derivative | Form 4 ↗ | |
| Sheridan John F | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 5,471 | — | — | derivative | Form 4 ↗ | |
| Sheridan John F | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 2,400 | $19 | $45K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 5,983 | — | — | Form 4 ↗ | ||
| Sheridan John F | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 1,963 | $19 | $37K | Form 4 ↗ | ||
| Sheridan John F | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 5,471 | — | — | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,495 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,503 | — | — | derivative | Form 4 ↗ | |
| Vosseller Leigh | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 616 | $19 | $12K | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,495 | — | — | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 619 | $19 | $12K | Form 4 ↗ | ||
| Vosseller Leigh | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,503 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,097 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,437 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 531 | — | — | derivative | Form 4 ↗ | |
| Hansen Shannon Marie | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 452 | $19 | $8,565 | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,097 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 592 | $19 | $11K | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 1,437 | — | — | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Sell F | February 17, 2026 | February 19, 2026 | 2d | 219 | $19 | $4,150 | Form 4 ↗ | ||
| Hansen Shannon Marie | TNDM | Option / conversion M | February 17, 2026 | February 19, 2026 | 2d | 531 | — | — | Form 4 ↗ | ||
| Kyrillos Jean-Claude | TNDM | Option / conversion M | January 15, 2026 | January 20, 2026 | 5d | 3,636 | — | — | latederivative | Form 4 ↗ |
Showing the 200 most recent of 260.
Federal contracts (USAspending, awards started in the last 180 days)
No contract award starting in the last 180 days was found for a recipient named exactly "TANDEM DIABETES CARE INC". Subsidiaries and differently-spelled recipients are not matched — search contracts.
Lobbying (Senate LDA, as client)
| Period | Registrant | Primary issue | Amount | Source |
|---|---|---|---|---|
| 2026 Q2 | THE NICKLES GROUP, LLC | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2026 Q1 | THE NICKLES GROUP, LLC | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2025 Q4 | THE NICKLES GROUP, LLC | Medicare/Medicaid | $50,000 | LDA ↗ |
| 2025 Q3 | THE NICKLES GROUP, LLC | Medicare/Medicaid | $50,000 | LDA ↗ |
Related companies
Companies whose stock was traded by the same people who traded TNDM, by number of filers in common. It shows overlap in public filings and nothing else.
- CrowdStrike Holdings, Inc. CRWD 2 filers in common
- Cloudflare, Inc. NET 2 filers in common
- Uber Technologies, Inc UBER 2 filers in common
- CARVANA CO. CVNA 2 filers in common
- MICRON TECHNOLOGY INC MU 2 filers in common
- INTUIT INC. INTU 2 filers in common
- ServiceNow, Inc. NOW 2 filers in common
- ADVANCED MICRO DEVICES INC AMD 2 filers in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Lobbying disclosure reports Reports are due about 20 days after each quarter ends.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| House Clerk, periodic transaction reports | 3 | 3 | October 15, 2025 | October 12, 2026 | House Clerk search |
| SEC EDGAR, Form 4 | 58 | 260 | October 17, 2025 | October 19, 2026 | Form 4 list on EDGAR |
| Lobbying disclosure filings | 4 filings | — | — | — | LDA.gov search |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.
Not investment advice. Public records shown as filed; no recommendation is made or implied.