LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
TNDMCIK 0001438133

TANDEM DIABETES CARE INC

210 transactions by 17 insiders, from November 7, 2025 to August 15, 2026.

Transactions
21017 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$4Kopen market
Net
−$4Knet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Rick CarpenterCTO33———
Shannon Marie HansenGC26———
Elizabeth Anne GasserChief25———
John F. SheridanCEO23———
Leigh VossellerCFO23———
Susan MorrisonChief23———
Jean-Claude KyrillosCOO17———
Mark David NovaraChief141/14—$4K
Rebecca B. RobertsonDir3———
Kathleen McGroddy-GoetzDir3———
Peyton R. HowellDir3———
Christopher J. TwomeyDir3———
Myoungil ChaDir3———
Joao Paulo Falcao MalagueiraDir3———
Rajwant SodhiDir3———
Sandra BeaverDir2———

Large holders and funds

Holders above 10%, often funds. They file the same form, but they trade for portfolio reasons, not because of what they know.

InsiderTradesPlannedBoughtSold
Dick AllenOther3———

All transactions

210 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Leigh VossellerCFODERIVAug 15M2,624$0.00—?
Leigh VossellerCFODERIVAug 15M1,496$0.00—?
Leigh VossellerCFOAug 15F942$22.72$21K
Leigh VossellerCFOAug 15M2,624$0.00—
Leigh VossellerCFOAug 15F537$22.72$12K
Leigh VossellerCFOAug 15M1,496$0.00—
John F. SheridanCEODERIVAug 15M9,934$0.00—?
John F. SheridanCEODERIVAug 15M5,982$0.00—?
John F. SheridanCEOAug 15F5,055$22.72$115K
John F. SheridanCEOAug 15M9,934$0.00—
John F. SheridanCEOAug 15F3,044$22.72$69K
John F. SheridanCEOAug 15M5,982$0.00—
Susan MorrisonChiefDERIVAug 15M1,730$0.00—?
Susan MorrisonChiefDERIVAug 15M1,097$0.00—?
Susan MorrisonChiefAug 15F495$22.72$11K
Susan MorrisonChiefAug 15M1,730$0.00—
Susan MorrisonChiefAug 15F314$22.72$7K
Susan MorrisonChiefAug 15M1,097$0.00—
Jean-Claude KyrillosCOODERIVAug 15M1,010$0.00—?
Jean-Claude KyrillosCOOAug 15F535$22.72$12K
Jean-Claude KyrillosCOOAug 15M1,010$0.00—
Shannon Marie HansenGCDERIVAug 15M1,917$0.00—?
Shannon Marie HansenGCDERIVAug 15M1,097$0.00—?
Shannon Marie HansenGCAug 15F976$22.72$22K
Shannon Marie HansenGCAug 15M1,917$0.00—
Shannon Marie HansenGCAug 15F559$22.72$13K
Shannon Marie HansenGCAug 15M1,097$0.00—
Elizabeth Anne GasserChiefDERIVAug 15M1,917$0.00—?
Elizabeth Anne GasserChiefDERIVAug 15M1,097$0.00—?
Elizabeth Anne GasserChiefAug 15F1,029$22.72$23K
Elizabeth Anne GasserChiefAug 15M1,917$0.00—
Elizabeth Anne GasserChiefAug 15F589$22.72$13K
Elizabeth Anne GasserChiefAug 15M1,097$0.00—
Rick CarpenterCTODERIVAug 15M1,610$0.00—?
Rick CarpenterCTODERIVAug 15M897$0.00—?
Rick CarpenterCTOAug 15F820$22.72$19K
Rick CarpenterCTOAug 15M1,610$0.00—
Rick CarpenterCTOAug 15F457$22.72$10K
Rick CarpenterCTOAug 15M897$0.00—
Jean-Claude KyrillosCOODERIVJul 15M3,636$0.00—?
Jean-Claude KyrillosCOOJul 15F1,926$15.28$29K
Jean-Claude KyrillosCOOJul 15M3,636$0.00—
Elizabeth Anne GasserChiefJun 2G7,160$0.00—
Elizabeth Anne GasserChiefJun 2G7,160$0.00—
Leigh VossellerCFODERIVMay 29A62,657$0.00—?
John F. SheridanCEODERIVMay 29A191,103$0.00—?
Susan MorrisonChiefDERIVMay 29A29,136$0.00—?
Jean-Claude KyrillosCOODERIVMay 29A29,136$0.00—?
Shannon Marie HansenGCDERIVMay 29A29,136$0.00—?
Elizabeth Anne GasserChiefDERIVMay 29A29,136$0.00—?
Rick CarpenterCTODERIVMay 29A26,003$0.00—?
Christopher J. TwomeyDirDERIVMay 21M8,759$0.00—?
Christopher J. TwomeyDirDERIVMay 20A10,220$0.00—?
Christopher J. TwomeyDirMay 21M8,759$0.00—
Rajwant SodhiDirDERIVMay 21M8,759$0.00—?
Rajwant SodhiDirDERIVMay 20A10,220$0.00—?
Rajwant SodhiDirMay 21M8,759$0.00—
Rebecca B. RobertsonDirDERIVMay 21M8,759$0.00—?
Rebecca B. RobertsonDirDERIVMay 20A10,220$0.00—?
Rebecca B. RobertsonDirMay 21M8,759$0.00—
Kathleen McGroddy-GoetzDirDERIVMay 21M8,759$0.00—?
Kathleen McGroddy-GoetzDirDERIVMay 20A10,220$0.00—?
Kathleen McGroddy-GoetzDirMay 21M8,759$0.00—
Joao Paulo Falcao MalagueiraDirDERIVMay 21M8,759$0.00—?
Joao Paulo Falcao MalagueiraDirDERIVMay 20A10,220$0.00—?
Joao Paulo Falcao MalagueiraDirMay 21M8,759$0.00—
Peyton R. HowellDirDERIVMay 21M8,759$0.00—?
Peyton R. HowellDirDERIVMay 20A10,220$0.00—?
Peyton R. HowellDirMay 21M8,759$0.00—
Myoungil ChaDirDERIVMay 21M8,759$0.00—?
Myoungil ChaDirDERIVMay 20A10,220$0.00—?
Myoungil ChaDirMay 21M8,759$0.00—
Sandra BeaverDirDERIVMay 20A5,110$0.00—?
Dick AllenOtherDERIVMay 21M8,759$0.00—?
Dick AllenOtherDERIVMay 20A10,220$0.00—?
Dick AllenOtherMay 21M8,759$0.00—
Leigh VossellerCFODERIVMay 15M10,496$0.00—?
Leigh VossellerCFODERIVMay 15M1,496$0.00—?
Leigh VossellerCFODERIVMay 15M1,503$0.00—?
Leigh VossellerCFOMay 15A1,336$10.90$15K
Leigh VossellerCFOMay 15F3,766$12.82$48K
Leigh VossellerCFOMay 15M10,496$0.00—
Leigh VossellerCFOMay 15F537$12.82$7K
Leigh VossellerCFOMay 15M1,496$0.00—
Leigh VossellerCFOMay 15F540$12.82$7K
Leigh VossellerCFOMay 15M1,503$0.00—
John F. SheridanCEODERIVMay 15M39,735$0.00—?
John F. SheridanCEODERIVMay 15M5,982$0.00—?
John F. SheridanCEODERIVMay 15M5,472$0.00—?
John F. SheridanCEOMay 15A1,336$10.90$15K
John F. SheridanCEOMay 15F18,944$12.82$243K
John F. SheridanCEOMay 15M39,735$0.00—
John F. SheridanCEOMay 15F3,044$12.82$39K
John F. SheridanCEOMay 15M5,982$0.00—
John F. SheridanCEOMay 15F2,785$12.82$36K
John F. SheridanCEOMay 15M5,472$0.00—
Mark David NovaraChiefDERIVMay 15M10,496$0.00—?
Mark David NovaraChiefDERIVMay 15M76$0.00—?
Mark David NovaraChiefMay 15F7,854$12.82$101K
Mark David NovaraChiefMay 15M10,496$0.00—
Mark David NovaraChiefMay 15F57$12.82$731
Mark David NovaraChiefMay 15M76$0.00—
Susan MorrisonChiefDERIVMay 15M6,923$0.00—?
Susan MorrisonChiefDERIVMay 15M1,097$0.00—?
Susan MorrisonChiefDERIVMay 15M1,503$0.00—?
Susan MorrisonChiefMay 15A1,336$10.90$15K
Susan MorrisonChiefMay 15F1,980$12.82$25K
Susan MorrisonChiefMay 15M6,923$0.00—
Susan MorrisonChiefMay 15F314$12.82$4K
Susan MorrisonChiefMay 15M1,097$0.00—
Susan MorrisonChiefMay 15F430$12.82$6K
Susan MorrisonChiefMay 15M1,503$0.00—
Jean-Claude KyrillosCOODERIVMay 15M4,038$0.00—?
Jean-Claude KyrillosCOOMay 15A434$10.90$5K
Jean-Claude KyrillosCOOMay 15F2,139$12.82$27K
Jean-Claude KyrillosCOOMay 15M4,038$0.00—
Shannon Marie HansenGCDERIVMay 15M7,667$0.00—?
Shannon Marie HansenGCDERIVMay 15M1,097$0.00—?
Shannon Marie HansenGCDERIVMay 15M1,437$0.00—?
Shannon Marie HansenGCMay 15A1,886$10.90$21K
Shannon Marie HansenGCMay 15F3,901$12.82$50K
Shannon Marie HansenGCMay 15M7,667$0.00—
Shannon Marie HansenGCMay 15F559$12.82$7K
Shannon Marie HansenGCMay 15M1,097$0.00—
Shannon Marie HansenGCMay 15F732$12.82$9K
Shannon Marie HansenGCMay 15M1,437$0.00—
Elizabeth Anne GasserChiefDERIVMay 15M7,667$0.00—?
Elizabeth Anne GasserChiefDERIVMay 15M1,097$0.00—?
Elizabeth Anne GasserChiefDERIVMay 15M1,503$0.00—?
Elizabeth Anne GasserChiefMay 15A1,337$10.90$15K
Elizabeth Anne GasserChiefMay 15F4,114$12.82$53K
Elizabeth Anne GasserChiefMay 15M7,667$0.00—
Elizabeth Anne GasserChiefMay 15F589$12.82$8K
Elizabeth Anne GasserChiefMay 15M1,097$0.00—
Elizabeth Anne GasserChiefMay 15F807$12.82$10K
Elizabeth Anne GasserChiefMay 15M1,503$0.00—
Rick CarpenterCTODERIVMay 15M6,439$0.00—?
Rick CarpenterCTODERIVMay 15M898$0.00—?
Rick CarpenterCTODERIVMay 15M1,437$0.00—?
Rick CarpenterCTOMay 15A1,336$10.90$15K
Rick CarpenterCTOMay 15F3,277$12.82$42K
Rick CarpenterCTOMay 15M6,439$0.00—
Rick CarpenterCTOMay 15F457$12.82$6K
Rick CarpenterCTOMay 15M898$0.00—
Rick CarpenterCTOMay 15F732$12.82$9K
Rick CarpenterCTOMay 15M1,437$0.00—
Jean-Claude KyrillosCOODERIVApr 15M3,636$0.00—?
Jean-Claude KyrillosCOOApr 15F1,926$20.66$40K
Jean-Claude KyrillosCOOApr 15M3,636$0.00—
Mark David NovaraChiefDERIVMar 16M7,414$0.00—?
Mark David NovaraChiefMar 17S187$23.05$4K
Mark David NovaraChiefMar 16F5,540$21.59$120K
Mark David NovaraChiefMar 16M7,414$0.00—
Mark David NovaraChiefMar 5SPLAN2$22.81$46
Leigh VossellerCFODERIVFeb 17M1,495$0.00—?
Leigh VossellerCFODERIVFeb 17M1,503$0.00—?
Leigh VossellerCFOFeb 17F616$18.95$12K
Leigh VossellerCFOFeb 17M1,495$0.00—
Leigh VossellerCFOFeb 17F619$18.95$12K
Leigh VossellerCFOFeb 17M1,503$0.00—
John F. SheridanCEODERIVFeb 17M5,983$0.00—?
John F. SheridanCEODERIVFeb 17M5,471$0.00—?
John F. SheridanCEOFeb 17F2,400$18.95$45K
John F. SheridanCEOFeb 17M5,983$0.00—
John F. SheridanCEOFeb 17F1,963$18.95$37K
John F. SheridanCEOFeb 17M5,471$0.00—
Mark David NovaraChiefDERIVFeb 17M77$0.00—?
Mark David NovaraChiefFeb 17F62$18.95$1K
Mark David NovaraChiefFeb 17M77$0.00—
Susan MorrisonChiefDERIVFeb 17M1,097$0.00—?
Susan MorrisonChiefDERIVFeb 17M1,503$0.00—?
Susan MorrisonChiefFeb 17F372$18.95$7K
Susan MorrisonChiefFeb 17M1,097$0.00—
Susan MorrisonChiefFeb 17F510$18.95$10K
Susan MorrisonChiefFeb 17M1,503$0.00—
Shannon Marie HansenGCDERIVFeb 17M1,097$0.00—?
Shannon Marie HansenGCDERIVFeb 17M1,437$0.00—?
Shannon Marie HansenGCDERIVFeb 17M531$0.00—?
Shannon Marie HansenGCFeb 17F452$18.95$9K
Shannon Marie HansenGCFeb 17M1,097$0.00—
Shannon Marie HansenGCFeb 17F592$18.95$11K
Shannon Marie HansenGCFeb 17M1,437$0.00—
Shannon Marie HansenGCFeb 17F219$18.95$4K
Shannon Marie HansenGCFeb 17M531$0.00—
Elizabeth Anne GasserChiefDERIVFeb 17M1,097$0.00—?
Elizabeth Anne GasserChiefDERIVFeb 17M1,503$0.00—?
Elizabeth Anne GasserChiefFeb 17F647$18.95$12K
Elizabeth Anne GasserChiefFeb 17M1,097$0.00—
Elizabeth Anne GasserChiefFeb 17F887$18.95$17K
Elizabeth Anne GasserChiefFeb 17M1,503$0.00—
Rick CarpenterCTODERIVFeb 17M897$0.00—?
Rick CarpenterCTODERIVFeb 17M1,437$0.00—?
Rick CarpenterCTOFeb 17F504$18.95$10K
Rick CarpenterCTOFeb 17M897$0.00—
Rick CarpenterCTOFeb 17F808$18.95$15K
Rick CarpenterCTOFeb 17M1,437$0.00—
Jean-Claude KyrillosCOODERIVJan 15M3,636$0.00—?
Jean-Claude KyrillosCOOJan 15F2,118$21.07$45K
Jean-Claude KyrillosCOOJan 15M3,636$0.00—
Rick CarpenterCTODERIVDec 15M406$0.00—?