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TNDMNasdaq
TANDEM DIABETES CARE INC
Surgical & Medical Instruments & Apparatus · DE · CIK 1438133
Tandem Diabetes Care designs, develops, and commercializes advanced insulin delivery and diabetes technology solutions
red 8-K · 90d
$1.14B
Market cap
$15.83
Last close
-2.5%
1D
+10.4%
5D
1.5M
Volume
Price · last 39 sessions-20.3%
May 4L $12.82 · H $19.87Jun 29
221
Total filings
May 21, 2026
Last filing
12/31
Fiscal year end
8-KExecutive Change · Security-Holder RightsMay 21, 20268-KExecutive ChangeMay 15, 202610-Q10-QMay 7, 20268-KResults of OperationsMay 7, 2026DEFA14ADEFA14AApr 7, 2026DEF 14ADEF 14AApr 7, 20268-KMaterial Agreement · New Debt / ObligationFeb 27, 202610-K10-KFeb 19, 20268-KResults of OperationsFeb 19, 20268-KBylaw AmendmentDec 30, 20258-KExecutive ChangeNov 12, 202510-Q10-QNov 6, 20258-KResults of OperationsNov 6, 20258-KCompany UpdateAug 7, 202510-Q10-QAug 6, 20258-KResults of OperationsAug 6, 20258-KMaterial Agreement · Shareholder VoteMay 23, 20258-KCompany UpdateMay 20, 20258-KCompany UpdateMay 12, 202510-Q10-QApr 30, 20258-KResults of OperationsApr 30, 2025DEFA14ADEFA14A ADDITIONAL PROXY MATERIALSApr 8, 2025DEF 14ADEF 14A 2025 PROXY STATEMENTApr 8, 202510-K10-KFeb 26, 20258-KResults of OperationsFeb 26, 202510-Q10-QNov 6, 20248-KResults of OperationsNov 6, 202410-Q10-QAug 1, 20248-KResults of OperationsAug 1, 20248-KExecutive ChangeJun 21, 20248-KMaterial AgreementJun 18, 20248-KExecutive Change · Shareholder VoteMay 23, 20248-KMaterial Agreement · Company UpdateMay 16, 202410-Q10-QMay 2, 20248-KResults of OperationsMay 2, 2024DEFA14ADEFA14AApr 9, 2024DEF 14ADEF 14AApr 9, 20248-KCompany UpdateApr 1, 20248-KMaterial Agreement · New Debt / ObligationMar 11, 202410-K10-KFeb 21, 20248-KResults of OperationsFeb 21, 2024SC 13GSC 13GFeb 14, 20248-KExecutive ChangeDec 11, 20238-KExecutive ChangeNov 13, 20238-KCompany UpdateNov 6, 202310-Q10-QNov 1, 20238-KResults of OperationsNov 1, 20238-KExecutive ChangeAug 18, 202310-Q10-QAug 3, 20238-KResults of OperationsAug 3, 20238-KShareholder VoteMay 26, 202310-Q10-QMay 3, 20238-KResults of OperationsMay 3, 2023DEFA14ADEFA14AApr 12, 2023DEF 14ADEF 14AApr 12, 20238-KExecutive Change · Results of OperationsFeb 22, 202310-K10-KFeb 22, 2023SC 13GSC 13GJan 24, 20238-KAcquisition / DispositionJan 23, 20238-KResults of OperationsJan 10, 20238-KMaterial AgreementDec 13, 202210-Q10-QNov 2, 20228-KResults of OperationsNov 2, 202210-Q10-QAug 3, 20228-KResults of OperationsAug 3, 20228-KExecutive ChangeJun 16, 20228-KShareholder VoteMay 27, 202210-Q10-QMay 4, 20228-KResults of OperationsMay 4, 2022DEF 14ADEF 14AApr 13, 2022DEFA14ADEFA14AApr 13, 20228-KExecutive ChangeMar 15, 202210-K10-KFeb 22, 20228-KExecutive Change · Results of OperationsFeb 22, 20228-KCompany UpdateFeb 16, 202210-Q10-QNov 3, 20218-KResults of OperationsNov 3, 20218-KMaterial AgreementSep 17, 202110-Q10-QAug 4, 20218-KResults of OperationsAug 4, 2021
Insider Activity
In the 90 days to Mar 17, 2026: 1 sold $4K.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 17, 2026 | Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICER | Sell | 187 | $23.05 | $4K |
| Mar 5, 2026 | Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICER | Sell | 2 | $22.81 | $46 |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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