TANDEM DIABETES CARE INC
TNDM · Surgical & Medical Instruments & Apparatus · 68.5M shares · +3%/yr ↑ dilution · EDGAR filings ↗
Reference price $23.05 · est. market cap ~$1.6B — last insider sale, 2026-03-17 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
D52Insulin-pump maker (t:slim) growing but with operating losses and elevated leverage.
Strengths
- Growth and high gross margin — gross margin 54%; revenue growth per 10-K
- Adequate liquidity — current ratio 2.5 (47th)
Risks
- Operating/net losses — operating margin -18%, net margin -20%
- Elevated leverage — D/E 2.0 (87th)
- CGM-integrated-pump competition — per 10-K
Notable findings
- Exec changeRecent 8-K item 5.02 8-K ↗
- Net lossNet loss (net margin -20.2%)
- Cash burnNegative free cash flow (-29.7M)
- Fund exitedNotable fund(s) exited this quarter: VANGUARD GROUP INC
- FDA recallFDA recall (Class II) — Tandem pumps are battery-operated infusion pumps capable of both basal and bolus (2026-01-30)
- Strong balance sheetStrong balance sheet — $293M cash & investments, ~40 quarters of runway
- FDA approvalFDA clearance/approval — Control-IQ+ technology (2026-04-24)
- Notable holderHeld by 5 notable fund(s): STATE STREET CORP, CITADEL ADVISORS LLC, GOLDMAN SACHS GROUP INC +2 more (as of 2026-03-31)
- AccumulatingInstitutional holders rose 8→9 QoQ (2025-12-31→2026-03-31)
- New fund positionNotable fund(s) opened this quarter: RENAISSANCE TECHNOLOGIES LLC
- Revenue declineRevenue -14.9% YoY
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Gross margin
53.8%
Operating margin
-18.5%
Net margin
-20.2%
Return on equity
-131.9%
Return on assets
-23.2%
ROIC
-31.8%
Revenue growth (QoQ)
-14.9%
Debt / equity
2.0×
Current ratio
2.5×
Free cash flow
-$30M
EBITDA
-$170M
Tangible book value
$143M
Cash & investments
$293M
Cash runway
40q
Stock comp / revenue
9.1%
Insider transactions · last 18 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-06-02 | Gasser Elizabeth Anne | Gift | 7.2K | — |
| 2026-06-02 | Gasser Elizabeth Anne | Gift | 7.2K | — |
| 2026-05-21 | TWOMEY CHRISTOPHER J | Option exercise | 8.8K | — |
| 2026-05-21 | Cha Myoungil | Option exercise | 8.8K | — |
| 2026-05-21 | Howell Peyton R | Option exercise | 8.8K | — |
| 2026-05-21 | Malagueira Joao Paulo Falcao | Option exercise | 8.8K | — |
| 2026-05-21 | Sodhi Rajwant | Option exercise | 8.8K | — |
| 2026-05-21 | McGroddy-Goetz Kathleen | Option exercise | 8.8K | — |
| 2026-05-21 | Allen Dick | Option exercise | 8.8K | — |
| 2026-05-21 | ROBERTSON REBECCA B | Option exercise | 8.8K | — |
| 2026-05-15 | Gasser Elizabeth Anne | Option exercise | 1.1K | — |
| 2026-05-15 | Gasser Elizabeth Anne | Tax withheld | 589 | $12.82 |
| 2026-05-15 | Gasser Elizabeth Anne | Option exercise | 7.7K | — |
| 2026-05-15 | Gasser Elizabeth Anne | Tax withheld | 4.1K | $12.82 |
| 2026-05-15 | Gasser Elizabeth Anne | Grant | 1.3K | $10.90 |
| 2026-05-15 | Hansen Shannon Marie | Option exercise | 1.4K | — |
| 2026-05-15 | Hansen Shannon Marie | Tax withheld | 732 | $12.82 |
| 2026-05-15 | Hansen Shannon Marie | Option exercise | 1.1K | — |
| 2026-05-15 | Hansen Shannon Marie | Tax withheld | 559 | $12.82 |
| 2026-05-15 | Hansen Shannon Marie | Option exercise | 7.7K | — |
| 2026-05-15 | Hansen Shannon Marie | Tax withheld | 3.9K | $12.82 |
| 2026-05-15 | Hansen Shannon Marie | Grant | 1.9K | $10.90 |
| 2026-05-15 | Kyrillos Jean-Claude | Option exercise | 4.0K | — |
| 2026-05-15 | Kyrillos Jean-Claude | Tax withheld | 2.1K | $12.82 |
| 2026-05-15 | Kyrillos Jean-Claude | Grant | 434 | $10.90 |
| 2026-05-15 | Morrison Susan | Option exercise | 1.5K | — |
| 2026-05-15 | Morrison Susan | Tax withheld | 430 | $12.82 |
| 2026-05-15 | Morrison Susan | Option exercise | 1.1K | — |
| 2026-05-15 | Morrison Susan | Tax withheld | 314 | $12.82 |
| 2026-05-15 | Morrison Susan | Option exercise | 6.9K | — |
| 2026-05-15 | Morrison Susan | Tax withheld | 2.0K | $12.82 |
| 2026-05-15 | Morrison Susan | Grant | 1.3K | $10.90 |
| 2026-05-15 | Sheridan John F | Option exercise | 5.5K | — |
| 2026-05-15 | Sheridan John F | Tax withheld | 2.8K | $12.82 |
| 2026-05-15 | Sheridan John F | Option exercise | 6.0K | — |
| 2026-05-15 | Sheridan John F | Tax withheld | 3.0K | $12.82 |
| 2026-05-15 | Sheridan John F | Option exercise | 40K | — |
| 2026-05-15 | Sheridan John F | Tax withheld | 19K | $12.82 |
| 2026-05-15 | Sheridan John F | Grant | 1.3K | $10.90 |
| 2026-05-15 | Vosseller Leigh | Tax withheld | 540 | $12.82 |
| 2026-05-15 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2026-05-15 | Vosseller Leigh | Tax withheld | 537 | $12.82 |
| 2026-05-15 | Vosseller Leigh | Option exercise | 10K | — |
| 2026-05-15 | Vosseller Leigh | Tax withheld | 3.8K | $12.82 |
| 2026-05-15 | Vosseller Leigh | Grant | 1.3K | $10.90 |
| 2026-05-15 | Novara Mark David | Option exercise | 76 | — |
| 2026-05-15 | Novara Mark David | Tax withheld | 57 | $12.82 |
| 2026-05-15 | Novara Mark David | Option exercise | 10K | — |
| 2026-05-15 | Novara Mark David | Tax withheld | 7.9K | $12.82 |
| 2026-05-15 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2026-05-15 | Carpenter Rick | Option exercise | 1.4K | — |
| 2026-05-15 | Carpenter Rick | Tax withheld | 732 | $12.82 |
| 2026-05-15 | Carpenter Rick | Option exercise | 898 | — |
| 2026-05-15 | Carpenter Rick | Tax withheld | 457 | $12.82 |
| 2026-05-15 | Carpenter Rick | Option exercise | 6.4K | — |
| 2026-05-15 | Carpenter Rick | Tax withheld | 3.3K | $12.82 |
| 2026-05-15 | Carpenter Rick | Grant | 1.3K | $10.90 |
| 2026-05-15 | Gasser Elizabeth Anne | Option exercise | 1.5K | — |
| 2026-05-15 | Gasser Elizabeth Anne | Tax withheld | 807 | $12.82 |
| 2026-04-15 | Kyrillos Jean-Claude | Option exercise | 3.6K | — |
| 2026-04-15 | Kyrillos Jean-Claude | Tax withheld | 1.9K | $20.66 |
| 2026-03-17 | Novara Mark David | Sell | 187 | $23.05 |
| 2026-03-16 | Novara Mark David | Option exercise | 7.4K | — |
| 2026-03-16 | Novara Mark David | Tax withheld | 5.5K | $21.59 |
| 2026-03-05 | Novara Mark David | Sell | 2 | $22.81 |
| 2026-02-17 | Vosseller Leigh | Tax withheld | 616 | $18.95 |
| 2026-02-17 | Carpenter Rick | Option exercise | 1.4K | — |
| 2026-02-17 | Carpenter Rick | Tax withheld | 808 | $18.95 |
| 2026-02-17 | Carpenter Rick | Option exercise | 897 | — |
| 2026-02-17 | Carpenter Rick | Tax withheld | 504 | $18.95 |
| 2026-02-17 | Gasser Elizabeth Anne | Option exercise | 1.5K | — |
| 2026-02-17 | Gasser Elizabeth Anne | Tax withheld | 887 | $18.95 |
| 2026-02-17 | Gasser Elizabeth Anne | Option exercise | 1.1K | — |
| 2026-02-17 | Gasser Elizabeth Anne | Tax withheld | 647 | $18.95 |
| 2026-02-17 | Morrison Susan | Option exercise | 1.5K | — |
| 2026-02-17 | Morrison Susan | Tax withheld | 510 | $18.95 |
| 2026-02-17 | Morrison Susan | Option exercise | 1.1K | — |
| 2026-02-17 | Morrison Susan | Tax withheld | 372 | $18.95 |
| 2026-02-17 | Novara Mark David | Option exercise | 77 | — |
| 2026-02-17 | Novara Mark David | Tax withheld | 62 | $18.95 |
| 2026-02-17 | Sheridan John F | Option exercise | 5.5K | — |
| 2026-02-17 | Sheridan John F | Tax withheld | 2.0K | $18.95 |
| 2026-02-17 | Sheridan John F | Option exercise | 6.0K | — |
| 2026-02-17 | Sheridan John F | Tax withheld | 2.4K | $18.95 |
| 2026-02-17 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2026-02-17 | Vosseller Leigh | Tax withheld | 619 | $18.95 |
| 2026-02-17 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2026-02-17 | Hansen Shannon Marie | Option exercise | 531 | — |
| 2026-02-17 | Hansen Shannon Marie | Tax withheld | 219 | $18.95 |
| 2026-02-17 | Hansen Shannon Marie | Option exercise | 1.4K | — |
| 2026-02-17 | Hansen Shannon Marie | Tax withheld | 592 | $18.95 |
| 2026-02-17 | Hansen Shannon Marie | Option exercise | 1.1K | — |
| 2026-02-17 | Hansen Shannon Marie | Tax withheld | 452 | $18.95 |
| 2026-01-15 | Kyrillos Jean-Claude | Option exercise | 3.6K | — |
| 2026-01-15 | Kyrillos Jean-Claude | Tax withheld | 2.1K | $21.07 |
| 2025-12-15 | Novara Mark David | Option exercise | 7.4K | — |
| 2025-12-15 | Novara Mark David | Tax withheld | 3.8K | $22.11 |
| 2025-12-15 | Carpenter Rick | Option exercise | 406 | — |
| 2025-12-15 | Carpenter Rick | Tax withheld | 207 | $22.11 |
| 2025-12-04 | Gasser Elizabeth Anne | Other | 3.0K | — |
| 2025-12-04 | Gasser Elizabeth Anne | Other | 3.0K | — |
| 2025-11-17 | Morrison Susan | Option exercise | 1.5K | — |
| 2025-11-17 | Morrison Susan | Tax withheld | 430 | $18.61 |
| 2025-11-17 | Morrison Susan | Option exercise | 1.1K | — |
| 2025-11-17 | Morrison Susan | Tax withheld | 314 | $18.61 |
| 2025-11-17 | Sheridan John F | Option exercise | 5.5K | — |
| 2025-11-17 | Sheridan John F | Tax withheld | 2.8K | $18.61 |
| 2025-11-17 | Sheridan John F | Option exercise | 6.0K | — |
| 2025-11-17 | Sheridan John F | Tax withheld | 3.0K | $18.61 |
| 2025-11-17 | Gasser Elizabeth Anne | Grant | 586 | $15.59 |
| 2025-11-17 | Gasser Elizabeth Anne | Option exercise | 1.5K | — |
| 2025-11-17 | Gasser Elizabeth Anne | Tax withheld | 805 | $18.61 |
| 2025-11-17 | Gasser Elizabeth Anne | Option exercise | 1.1K | — |
| 2025-11-17 | Gasser Elizabeth Anne | Tax withheld | 587 | $18.61 |
| 2025-11-17 | Carpenter Rick | Grant | 339 | $15.59 |
| 2025-11-17 | Carpenter Rick | Option exercise | 1.4K | — |
| 2025-11-17 | Carpenter Rick | Tax withheld | 730 | $18.61 |
| 2025-11-17 | Carpenter Rick | Option exercise | 897 | — |
| 2025-11-17 | Carpenter Rick | Tax withheld | 456 | $18.61 |
| 2025-11-17 | Novara Mark David | Option exercise | 76 | — |
| 2025-11-17 | Novara Mark David | Tax withheld | 40 | $18.61 |
| 2025-11-17 | Kyrillos Jean-Claude | Grant | 160 | $15.59 |
| 2025-11-17 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2025-11-17 | Vosseller Leigh | Tax withheld | 538 | $18.61 |
| 2025-11-17 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2025-11-17 | Vosseller Leigh | Tax withheld | 536 | $18.61 |
| 2025-11-17 | Hansen Shannon Marie | Grant | 800 | $15.59 |
| 2025-11-17 | Hansen Shannon Marie | Option exercise | 530 | — |
| 2025-11-17 | Hansen Shannon Marie | Tax withheld | 190 | $18.61 |
| 2025-11-17 | Hansen Shannon Marie | Option exercise | 1.4K | — |
| 2025-11-17 | Hansen Shannon Marie | Tax withheld | 515 | $18.61 |
| 2025-11-17 | Hansen Shannon Marie | Option exercise | 1.1K | — |
| 2025-11-17 | Hansen Shannon Marie | Tax withheld | 393 | $18.61 |
| 2025-10-15 | Kyrillos Jean-Claude | Option exercise | 3.6K | — |
| 2025-10-15 | Kyrillos Jean-Claude | Tax withheld | 1.3K | $14.75 |
| 2025-09-15 | Carpenter Rick | Option exercise | 406 | — |
| 2025-09-15 | Carpenter Rick | Tax withheld | 207 | $12.09 |
| 2025-09-15 | Novara Mark David | Option exercise | 7.4K | — |
| 2025-09-15 | Novara Mark David | Tax withheld | 3.9K | $12.09 |
| 2025-08-15 | Sheridan John F | Option exercise | 6.0K | — |
| 2025-08-15 | Novara Mark David | Option exercise | 76 | — |
| 2025-08-15 | Novara Mark David | Tax withheld | 40 | $10.82 |
| 2025-08-15 | Morrison Susan | Option exercise | 1.5K | — |
| 2025-08-15 | Morrison Susan | Tax withheld | 430 | $10.82 |
| 2025-08-15 | Morrison Susan | Option exercise | 1.1K | — |
| 2025-08-15 | Morrison Susan | Tax withheld | 314 | $10.82 |
| 2025-08-15 | Sheridan John F | Option exercise | 5.5K | — |
| 2025-08-15 | Sheridan John F | Tax withheld | 2.8K | $10.82 |
| 2025-08-15 | Sheridan John F | Tax withheld | 3.0K | $10.82 |
| 2025-08-15 | Carpenter Rick | Option exercise | 1.4K | — |
| 2025-08-15 | Carpenter Rick | Tax withheld | 730 | $10.82 |
| 2025-08-15 | Carpenter Rick | Option exercise | 898 | — |
| 2025-08-15 | Carpenter Rick | Tax withheld | 457 | $10.82 |
| 2025-08-15 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2025-08-15 | Vosseller Leigh | Tax withheld | 538 | $10.82 |
| 2025-08-15 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2025-08-15 | Vosseller Leigh | Tax withheld | 535 | $10.82 |
| 2025-08-15 | Hansen Shannon Marie | Option exercise | 531 | — |
| 2025-08-15 | Hansen Shannon Marie | Tax withheld | 190 | $10.82 |
| 2025-08-15 | Hansen Shannon Marie | Option exercise | 1.4K | — |
| 2025-08-15 | Hansen Shannon Marie | Tax withheld | 515 | $10.82 |
| 2025-08-15 | Hansen Shannon Marie | Option exercise | 1.1K | — |
| 2025-08-15 | Hansen Shannon Marie | Tax withheld | 393 | $10.82 |
| 2025-08-15 | Gasser Elizabeth Anne | Option exercise | 1.5K | — |
| 2025-08-15 | Gasser Elizabeth Anne | Tax withheld | 805 | $10.82 |
| 2025-08-15 | Gasser Elizabeth Anne | Option exercise | 1.1K | — |
| 2025-08-15 | Gasser Elizabeth Anne | Tax withheld | 588 | $10.82 |
| 2025-08-11 | Sheridan John F | Buy | 10K | $10.23 |
| 2025-08-08 | Vosseller Leigh | Buy | 14K | $10.89 |
| 2025-07-15 | Kyrillos Jean-Claude | Option exercise | 15K | — |
| 2025-07-15 | Kyrillos Jean-Claude | Tax withheld | 5.2K | $15.20 |
| 2025-06-16 | Carpenter Rick | Option exercise | 406 | — |
| 2025-06-16 | Carpenter Rick | Tax withheld | 207 | $20.76 |
| 2025-06-16 | Novara Mark David | Option exercise | 7.4K | — |
| 2025-06-16 | Novara Mark David | Tax withheld | 3.8K | $20.76 |
| 2025-06-16 | Cha Myoungil | Option exercise | 1.7K | — |
| 2025-06-16 | Malagueira Joao Paulo Falcao | Option exercise | 1.7K | — |
| 2025-06-02 | Allen Dick | Gift | 1.0K | $19.88 |
| 2025-05-29 | Gasser Elizabeth Anne | Other | 11K | — |
| 2025-05-29 | Gasser Elizabeth Anne | Other | 11K | — |
| 2025-05-22 | Sodhi Rajwant | Option exercise | 4.4K | $20.64 |
| 2025-05-22 | McGroddy-Goetz Kathleen | Option exercise | 4.4K | $20.64 |
| 2025-05-22 | Cha Myoungil | Option exercise | 4.4K | $20.64 |
| 2025-05-22 | ROBERTSON REBECCA B | Option exercise | 4.4K | $20.64 |
| 2025-05-22 | Howell Peyton R | Option exercise | 4.4K | $20.64 |
| 2025-05-22 | TWOMEY CHRISTOPHER J | Option exercise | 4.4K | $20.64 |
| 2025-05-22 | Malagueira Joao Paulo Falcao | Option exercise | 4.4K | $20.64 |
| 2025-05-22 | Allen Dick | Option exercise | 4.4K | $20.64 |
| 2025-05-15 | Hansen Shannon Marie | Option exercise | 531 | — |
| 2025-05-15 | Hansen Shannon Marie | Tax withheld | 190 | $22.70 |
| 2025-05-15 | Hansen Shannon Marie | Option exercise | 1.4K | — |
| 2025-05-15 | Hansen Shannon Marie | Tax withheld | 515 | $22.70 |
| 2025-05-15 | Hansen Shannon Marie | Option exercise | 4.4K | — |
| 2025-05-15 | Hansen Shannon Marie | Tax withheld | 1.6K | $22.70 |
| 2025-05-15 | Novara Mark David | Grant | 870 | $19.30 |
| 2025-05-15 | Novara Mark David | Option exercise | 304 | — |
| 2025-05-15 | Novara Mark David | Tax withheld | 113 | $22.70 |
| 2025-05-15 | Morrison Susan | Grant | 1.4K | $15.64 |
| 2025-05-15 | Morrison Susan | Option exercise | 162 | — |
| 2025-05-15 | Morrison Susan | Tax withheld | 47 | $22.70 |
| 2025-05-15 | Morrison Susan | Option exercise | 474 | — |
| 2025-05-15 | Morrison Susan | Tax withheld | 136 | $22.70 |
| 2025-05-15 | Morrison Susan | Option exercise | 1.5K | — |
| 2025-05-15 | Morrison Susan | Tax withheld | 430 | $22.70 |
| 2025-05-15 | Morrison Susan | Option exercise | 4.4K | — |
| 2025-05-15 | Morrison Susan | Tax withheld | 1.3K | $22.70 |
| 2025-05-15 | Gasser Elizabeth Anne | Grant | 1.1K | $15.64 |
| 2025-05-15 | Gasser Elizabeth Anne | Option exercise | 162 | — |
| 2025-05-15 | Gasser Elizabeth Anne | Tax withheld | 87 | $22.70 |
| 2025-05-15 | Gasser Elizabeth Anne | Option exercise | 474 | — |
| 2025-05-15 | Gasser Elizabeth Anne | Tax withheld | 254 | $22.70 |
| 2025-05-15 | Gasser Elizabeth Anne | Option exercise | 1.5K | — |
| 2025-05-15 | Gasser Elizabeth Anne | Tax withheld | 805 | $22.70 |
| 2025-05-15 | Gasser Elizabeth Anne | Option exercise | 4.4K | — |
| 2025-05-15 | Gasser Elizabeth Anne | Tax withheld | 2.4K | $22.70 |
| 2025-05-15 | Carpenter Rick | Grant | 1.0K | $15.64 |
| 2025-05-15 | Carpenter Rick | Option exercise | 596 | — |
| 2025-05-15 | Carpenter Rick | Tax withheld | 214 | $22.70 |
| 2025-05-15 | Carpenter Rick | Option exercise | 1.4K | — |
| 2025-05-15 | Carpenter Rick | Tax withheld | 515 | $22.70 |
| 2025-05-15 | Carpenter Rick | Option exercise | 3.6K | — |
| 2025-05-15 | Carpenter Rick | Tax withheld | 1.3K | $22.70 |
| 2025-05-15 | Sheridan John F | Grant | 1.4K | $15.64 |
| 2025-05-15 | Sheridan John F | Option exercise | 792 | — |
| 2025-05-15 | Sheridan John F | Tax withheld | 403 | $22.70 |
| 2025-05-15 | Sheridan John F | Option exercise | 2.2K | — |
| 2025-05-15 | Sheridan John F | Tax withheld | 1.1K | $22.70 |
| 2025-05-15 | Sheridan John F | Option exercise | 5.5K | $22.70 |
| 2025-05-15 | Sheridan John F | Tax withheld | 2.8K | $22.70 |
| 2025-05-15 | Sheridan John F | Option exercise | 24K | — |
| 2025-05-15 | Sheridan John F | Tax withheld | 12K | $22.70 |
| 2025-05-15 | Kyrillos Jean-Claude | Grant | 171 | $19.30 |
| 2025-05-15 | Vosseller Leigh | Grant | 1.4K | $15.64 |
| 2025-05-15 | Vosseller Leigh | Option exercise | 162 | — |
| 2025-05-15 | Vosseller Leigh | Tax withheld | 58 | $22.70 |
| 2025-05-15 | Vosseller Leigh | Option exercise | 474 | — |
| 2025-05-15 | Vosseller Leigh | Tax withheld | 170 | $22.70 |
| 2025-05-15 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2025-05-15 | Vosseller Leigh | Tax withheld | 538 | $22.70 |
| 2025-05-15 | Vosseller Leigh | Option exercise | 6.0K | — |
| 2025-05-15 | Vosseller Leigh | Tax withheld | 2.1K | $22.70 |
| 2025-03-17 | Novara Mark David | Option exercise | 7.4K | — |
| 2025-03-17 | Novara Mark David | Tax withheld | 2.7K | $19.17 |
| 2025-03-17 | Carpenter Rick | Option exercise | 406 | — |
| 2025-03-17 | Carpenter Rick | Tax withheld | 146 | $19.17 |
| 2025-03-07 | Kyrillos Jean-Claude | Buy | 11K | $18.12 |
| 2025-02-25 | Morrison Susan | Option exercise | 1.4K | — |
| 2025-02-25 | Morrison Susan | Tax withheld | 395 | $33.34 |
| 2025-02-25 | Morrison Susan | Option exercise | 5.5K | — |
| 2025-02-25 | Morrison Susan | Tax withheld | 1.6K | $33.34 |
| 2025-02-25 | Vosseller Leigh | Option exercise | 1.4K | — |
| 2025-02-25 | Vosseller Leigh | Tax withheld | 494 | $33.34 |
| 2025-02-25 | Vosseller Leigh | Option exercise | 5.5K | — |
| 2025-02-25 | Vosseller Leigh | Tax withheld | 2.0K | $33.34 |
| 2025-02-25 | Gasser Elizabeth Anne | Option exercise | 1.4K | — |
| 2025-02-25 | Gasser Elizabeth Anne | Tax withheld | 739 | $33.34 |
| 2025-02-25 | Gasser Elizabeth Anne | Option exercise | 5.5K | — |
| 2025-02-25 | Gasser Elizabeth Anne | Tax withheld | 3.0K | $33.34 |
| 2025-02-25 | Sheridan John F | Option exercise | 6.7K | — |
| 2025-02-25 | Sheridan John F | Tax withheld | 3.4K | $33.34 |
| 2025-02-25 | Sheridan John F | Option exercise | 26K | — |
| 2025-02-25 | Sheridan John F | Tax withheld | 10K | $33.34 |
| 2025-02-18 | Gasser Elizabeth Anne | Option exercise | 163 | — |
| 2025-02-18 | Gasser Elizabeth Anne | Tax withheld | 96 | $33.47 |
| 2025-02-18 | Gasser Elizabeth Anne | Option exercise | 474 | — |
| 2025-02-18 | Gasser Elizabeth Anne | Tax withheld | 279 | $33.47 |
| 2025-02-18 | Gasser Elizabeth Anne | Option exercise | 1.5K | — |
| 2025-02-18 | Gasser Elizabeth Anne | Tax withheld | 886 | $33.47 |
| 2025-02-18 | Hansen Shannon Marie | Option exercise | 531 | — |
| 2025-02-18 | Hansen Shannon Marie | Tax withheld | 219 | $33.47 |
| 2025-02-18 | Hansen Shannon Marie | Option exercise | 1.4K | — |
| 2025-02-18 | Hansen Shannon Marie | Tax withheld | 591 | $33.47 |
| 2025-02-18 | Morrison Susan | Option exercise | 163 | — |
| 2025-02-18 | Morrison Susan | Tax withheld | 56 | $33.47 |
| 2025-02-18 | Morrison Susan | Option exercise | 474 | — |
| 2025-02-18 | Morrison Susan | Tax withheld | 161 | $33.47 |
| 2025-02-18 | Morrison Susan | Option exercise | 1.5K | — |
| 2025-02-18 | Morrison Susan | Tax withheld | 510 | $33.47 |
| 2025-02-18 | Sheridan John F | Option exercise | 793 | — |
| 2025-02-18 | Sheridan John F | Tax withheld | 284 | $33.47 |
| 2025-02-18 | Sheridan John F | Option exercise | 2.2K | — |
| 2025-02-18 | Sheridan John F | Tax withheld | 801 | $33.47 |
| 2025-02-18 | Sheridan John F | Option exercise | 5.5K | — |
| 2025-02-18 | Sheridan John F | Tax withheld | 2.1K | $33.47 |
| 2025-02-18 | Vosseller Leigh | Option exercise | 163 | — |
| 2025-02-18 | Vosseller Leigh | Tax withheld | 67 | $33.47 |
| 2025-02-18 | Vosseller Leigh | Option exercise | 474 | — |
| 2025-02-18 | Vosseller Leigh | Tax withheld | 195 | $33.47 |
| 2025-02-18 | Vosseller Leigh | Option exercise | 1.5K | — |
| 2025-02-18 | Vosseller Leigh | Tax withheld | 618 | $33.47 |
| 2025-02-18 | Carpenter Rick | Option exercise | 595 | — |
| 2025-02-18 | Carpenter Rick | Tax withheld | 245 | $33.47 |
| 2025-02-18 | Carpenter Rick | Option exercise | 1.4K | — |
| 2025-02-18 | Carpenter Rick | Tax withheld | 591 | $33.47 |
All non-derivative Form 4 activity (SEC), newest first.
Clinical trials
| Trial | Title | Phase | Status | Primary completion |
|---|---|---|---|---|
| NCT07211126 ↗ | The Real-World Control-IQ Glycemic Control and Quality of Life Study in Type 1 Diabetes in France Diabetes Mellitus, Type 1 | — | Recruiting | 2027-12-01 |
| NCT07325461 ↗ | Feasibility Study of Extended Wear Insulin Infusion Set Options During Home Use in People With Type 1 Diabetes Diabetes Mellitus, Type 1 | NA | Active Not Recruiting | 2027-03-01 |
| NCT06717451 ↗ | PS230005 Control-IQ 1.5 Post-Approval Study Type 1 Diabetes | — | Active Not Recruiting | 2026-08-11 |
| NCT06834568 ↗ | Tandem Freedom - Feasibility Trial 2 Diabetes Mellitus, Type 1 | NA | Completed | 2025-04-07 |
| NCT06273124 ↗ | Investigational Extended Wear Insulin Infusion Set in People With Type 1 Diabetes Type1diabetes | NA | Completed | 2024-12-11 |
| NCT05973422 ↗ | Sigi Insulin Management System - A First-in-Human Study in Adults With Type 1 Diabetes Type 1 Diabetes | NA | Unknown | 2024-09-30 |
| NCT05785832 ↗ | A Randomized Trial Evaluating Control-IQ+ Technology in Adults With Type 2 Diabetes Type 2 Diabetes Treated With Insulin | NA | Completed | 2024-09-24 |
| NCT06428591 ↗ | Tandem Freedom Feasibility Study 1 Diabetes Mellitus, Type 1 | NA | Completed | 2024-06-10 |
| NCT05683392 ↗ | Use of Control-IQ Technology 2.0 in Adults, Children, and Preschoolers With Type 1 Diabetes Type 1 Diabetes | NA | Completed | 2023-12-13 |
| NCT05403502 ↗ | Safety Evaluation of an Advanced Hybrid Closed Loop System Using Lyumjev With the Tandem t:Slim X2 Insulin Pump With Control-IQ Technology in Adults, Adolescents and Children With Type 1 Diabetes Type 1 Diabetes | NA | Completed | 2023-08-02 |
| NCT04503174 ↗ | Control-IQ Observational (CLIO) Post-Approval Study Diabetes Mellitus, Type 1 | — | Completed | 2023-06-02 |
| NCT05422053 ↗ | Control-IQ Technology for High Insulin Users With Type 1 Diabetes (Higher-IQ) Type 1 Diabetes | NA | Completed | 2023-01-06 |
| NCT05204134 ↗ | Adaptation of Insulin Delivery Settings to Improve Clinical Outcomes With AID Use Type 1 Diabetes | NA | Completed | 2022-09-09 |
| NCT05111301 ↗ | Control-IQ Technology in Individuals With Type 2 Diabetes Type 2 Diabetes Treated With Insulin | NA | Completed | 2022-08-10 |
| NCT05014789 ↗ | Control-IQ Technology 2.0 Adult and Adolescent Feasibility Study Diabetes Mellitus, Type 1 | NA | Completed | 2021-12-20 |
| NCT03195140 ↗ | Diabetes Pump With Predictive Low Glucose Suspend Pivotal Trial Diabetes Mellitus, Type 1 | NA | Completed | 2018-02-06 |
| NCT02877771 ↗ | Tandem Predictive Low Glucose Suspend Inpatient Feasibility Study Diabetes Mellitus, Type 1 Diabetes | PHASE1 | Completed | 2016-08-01 |
| NCT01142895 ↗ | Validation Study of G4 User Interface Diabetes Mellitus | — | Completed | 2010-05-01 |
Source: ClinicalTrials.gov (U.S. NIH) · active studies first.
Notable events (8-K)
| Date | Items | |
|---|---|---|
| 2026-05-21 | 3.03Exec/director changeShareholder voteExhibits | filing ↗ |
| 2026-05-15 | Exec/director change | filing ↗ |
| 2026-05-07 | ResultsExhibits | filing ↗ |
| 2026-02-27 | Material agreementDebt obligation3.02OtherExhibits | filing ↗ |
| 2026-02-19 | ResultsExhibits | filing ↗ |
| 2025-12-30 | 5.03Exhibits | filing ↗ |
| 2025-11-12 | Exec/director changeExhibits | filing ↗ |
| 2025-11-06 | ResultsExhibits | filing ↗ |
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-05-21 | 2026-05-20 | 0001438133-26-000070 ↗ |
| 8-K | 2026-05-15 | 2026-05-11 | 0001438133-26-000052 ↗ |
| 10-Q | 2026-05-07 | 2026-03-31 | 0001438133-26-000049 ↗ |
| 8-K | 2026-05-07 | 2026-05-07 | 0001438133-26-000048 ↗ |
| 8-K | 2026-02-27 | 2026-02-23 | 0001140361-26-007142 ↗ |
| 8-K | 2026-02-19 | 2026-02-19 | 0001438133-26-000009 ↗ |
| 10-K | 2026-02-19 | 2025-12-31 | 0001438133-26-000010 ↗ |
| 8-K | 2025-12-30 | 2025-12-26 | 0001438133-25-000237 ↗ |
| 8-K | 2025-11-12 | 2025-11-07 | 0001438133-25-000190 ↗ |
| 10-Q | 2025-11-06 | 2025-09-30 | 0001438133-25-000187 ↗ |
| 8-K | 2025-11-06 | 2025-11-06 | 0001438133-25-000186 ↗ |
| 8-K | 2025-08-07 | 2025-08-06 | 0001438133-25-000160 ↗ |