MetaCap

Tandem Diabetes Care Insider Trades

NASDAQ: TNDMHealth CareMedical/Dental InstrumentsUSD

16.11+0.435 (+2.78%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
2 · $4.36K
Shares bought / sold
0 / 189
Net activity
Net selling $4,356

Tandem Diabetes Care insider activity

Over the last 12 months, Tandem Diabetes Care insiders reported 100 transactions on SEC Form 4: 0 open-market purchases and 2 sales. Insiders bought $0 and sold $4,356 worth of stock, for net insider selling of $4,356. The largest seller was Novara Mark David, with $4,356 in reported sales.

The most recent filing shows Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) reporting a transaction in 1,496 shares on Aug 15, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put TNDM's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

TNDM insider transactions

Tandem Diabetes Care insider transactions
DateInsiderTypeSharesValueFiling
Aug 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerTax withholding976$22.17KForm 4
Aug 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerOption exercise1,917—Form 4
Aug 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerTax withholding559$12.70KForm 4
Aug 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerOption exercise1,097—Form 4
Aug 15, 2026Carpenter RickEVP & Chief Technology OfficerTax withholding820$18.63KForm 4
Aug 15, 2026Carpenter RickEVP & Chief Technology OfficerOption exercise1,610—Form 4
Aug 15, 2026Carpenter RickEVP & Chief Technology OfficerTax withholding457$10.38KForm 4
Aug 15, 2026Carpenter RickEVP & Chief Technology OfficerOption exercise897—Form 4
Aug 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerTax withholding1,029$23.38KForm 4
Aug 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerOption exercise1,917—Form 4
Aug 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerTax withholding589$13.38KForm 4
Aug 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerOption exercise1,097—Form 4
Aug 15, 2026Morrison SusanEVP & Chief Admin. OfficerTax withholding495$11.25KForm 4
Aug 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerTax withholding535$12.16KForm 4
Aug 15, 2026Morrison SusanEVP & Chief Admin. OfficerOption exercise1,730—Form 4
Aug 15, 2026Morrison SusanEVP & Chief Admin. OfficerTax withholding314$7.13KForm 4
Aug 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerOption exercise1,010—Form 4
Aug 15, 2026Morrison SusanEVP & Chief Admin. OfficerOption exercise1,097—Form 4
Aug 15, 2026Sheridan John FPRESIDENT & CEOTax withholding5,055$114.85KForm 4
Aug 15, 2026Sheridan John FPRESIDENT & CEOOption exercise9,934—Form 4
Aug 15, 2026Sheridan John FPRESIDENT & CEOTax withholding3,044$69.16KForm 4
Aug 15, 2026Sheridan John FPRESIDENT & CEOOption exercise5,982—Form 4
Aug 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICERTax withholding942$21.40KForm 4
Aug 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICEROption exercise2,624—Form 4
Aug 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICERTax withholding537$12.20KForm 4
Aug 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICEROption exercise1,496—Form 4
Jul 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerTax withholding1,926$29.43KForm 4
Jul 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerOption exercise3,636—Form 4
Jun 2, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerGift7,160—Form 4
Jun 2, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerGift7,160—Form 4
May 21, 2026Cha MyoungilDirectorOption exercise8,759—Form 4
May 21, 2026TWOMEY CHRISTOPHER JDirectorOption exercise8,759—Form 4
May 21, 2026ROBERTSON REBECCA BDirectorOption exercise8,759—Form 4
May 21, 2026McGroddy-Goetz KathleenDirectorOption exercise8,759—Form 4
May 21, 2026Malagueira Joao Paulo FalcaoDirectorOption exercise8,759—Form 4
May 21, 2026Sodhi RajwantDirectorOption exercise8,759—Form 4
May 21, 2026Howell Peyton RDirectorOption exercise8,759—Form 4
May 21, 2026Allen DickChair EmeritusOption exercise8,759—Form 4
May 15, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICERTax withholding7,854$100.69KForm 4
May 15, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICEROption exercise10,496—Form 4
May 15, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICERTax withholding57$730.74Form 4
May 15, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICEROption exercise76—Form 4
May 15, 2026Sheridan John FPRESIDENT & CEOAward1,336$14.56KForm 4
May 15, 2026Sheridan John FPRESIDENT & CEOTax withholding18,944$242.86KForm 4
May 15, 2026Sheridan John FPRESIDENT & CEOOption exercise39,735—Form 4
May 15, 2026Sheridan John FPRESIDENT & CEOTax withholding3,044$39.02KForm 4
May 15, 2026Sheridan John FPRESIDENT & CEOOption exercise5,982—Form 4
May 15, 2026Sheridan John FPRESIDENT & CEOTax withholding2,785$35.70KForm 4
May 15, 2026Sheridan John FPRESIDENT & CEOOption exercise5,472—Form 4
May 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerAward434$4.73KForm 4
May 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerTax withholding2,139$27.42KForm 4
May 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerOption exercise4,038—Form 4
May 15, 2026Carpenter RickEVP & Chief Technology OfficerAward1,336$14.56KForm 4
May 15, 2026Carpenter RickEVP & Chief Technology OfficerTax withholding3,277$42.01KForm 4
May 15, 2026Carpenter RickEVP & Chief Technology OfficerOption exercise6,439—Form 4
May 15, 2026Carpenter RickEVP & Chief Technology OfficerTax withholding457$5.86KForm 4
May 15, 2026Carpenter RickEVP & Chief Technology OfficerOption exercise898—Form 4
May 15, 2026Carpenter RickEVP & Chief Technology OfficerTax withholding732$9.38KForm 4
May 15, 2026Carpenter RickEVP & Chief Technology OfficerOption exercise1,437—Form 4
May 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICERAward1,336$14.56KForm 4
May 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICERTax withholding3,766$48.28KForm 4
May 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICEROption exercise10,496—Form 4
May 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICERTax withholding537$6.88KForm 4
May 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICEROption exercise1,496—Form 4
May 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICERTax withholding540$6.92KForm 4
May 15, 2026Vosseller LeighEVP & CHIEF FINANCIAL OFFICEROption exercise1,503—Form 4
May 15, 2026Morrison SusanEVP & Chief Admin. OfficerAward1,336$14.56KForm 4
May 15, 2026Morrison SusanEVP & Chief Admin. OfficerTax withholding1,980$25.38KForm 4
May 15, 2026Morrison SusanEVP & Chief Admin. OfficerOption exercise6,923—Form 4
May 15, 2026Morrison SusanEVP & Chief Admin. OfficerTax withholding314$4.03KForm 4
May 15, 2026Morrison SusanEVP & Chief Admin. OfficerOption exercise1,097—Form 4
May 15, 2026Morrison SusanEVP & Chief Admin. OfficerTax withholding430$5.51KForm 4
May 15, 2026Morrison SusanEVP & Chief Admin. OfficerOption exercise1,503—Form 4
May 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerAward1,886$20.56KForm 4
May 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerTax withholding3,901$50.01KForm 4
May 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerOption exercise7,667—Form 4
May 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerTax withholding559$7.17KForm 4
May 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerOption exercise1,097—Form 4
May 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerTax withholding732$9.38KForm 4
May 15, 2026Hansen Shannon MarieEVP & Chief Legal OfficerOption exercise1,437—Form 4
May 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerAward1,337$14.57KForm 4
May 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerTax withholding4,114$52.74KForm 4
May 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerOption exercise7,667—Form 4
May 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerTax withholding589$7.55KForm 4
May 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerOption exercise1,097—Form 4
May 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerTax withholding807$10.35KForm 4
May 15, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerOption exercise1,503—Form 4
Apr 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerTax withholding1,926$39.79KForm 4
Apr 15, 2026Kyrillos Jean-ClaudeEVP & Chief Operating OfficerOption exercise3,636—Form 4
Mar 17, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICERSale187$4.31KForm 4
Mar 16, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICERTax withholding5,540$119.61KForm 4
Mar 16, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICEROption exercise7,414—Form 4
Mar 5, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICERSale2$45.62Form 4
Feb 17, 2026Gasser Elizabeth AnneEVP, Chief Strategy OfficerOption exercise1,503—Form 4
Feb 17, 2026Carpenter RickChief Technology OfficerTax withholding504$9.55KForm 4
Feb 17, 2026Carpenter RickChief Technology OfficerOption exercise897—Form 4
Feb 17, 2026Carpenter RickChief Technology OfficerTax withholding808$15.31KForm 4
Feb 17, 2026Carpenter RickChief Technology OfficerOption exercise1,437—Form 4
Feb 17, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICERTax withholding62$1.17KForm 4
Feb 17, 2026Novara Mark DavidEVP & CHIEF COMMERCIAL OFFICEROption exercise77—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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