Tandem Diabetes Care

TNDMNASDAQ
$47.30
00.00%
Pre-Market: 4:00 PM EDT
15 minutes delayed

Tandem Diabetes Care (NASDAQ:TNDM) Stock, Insider Trading Activity

Tandem Diabetes Care: Insider buying and selling updated today.

What is Insider Activity?

Insider trading activity involves company insiders, such as executives, directors, and employees, engaging in transactions of their own company's stock. Insiders' buy and sell transactions provide valuable insights into their confidence in the company's future performance.

What are Tandem Diabetes Care Inc Insiders Doing?

Insiders have report no purchases/sales in the last 30 days.

Notable Recent Insider Buys and Sales

  • On June 3, 2024, Dick Allen, the company's DIRECTOR sold 5K shares for $51.68 each.

Ownership Statistics for Tandem Diabetes Care Inc

Institutional Shares Held
50.996M
Institutional Percentage Held
79.0%
Jun 03, 2024Dick AllenDIRECTOR-5.00K$51.68-$258.40KSELL-83.33%1.00KMay 30View
Nov 29, 2023Dick AllenDIRECTOR5.00K$18.96$94.78KBUY31.32%20.96KNov 27View
Nov 13, 2023Leigh VossellerEVP & CHIEF FINANCIAL OFFICER6.20K$15.39$95.40KBUY35.88%23.48KNov 08View
Nov 13, 2023Shannon M. HansenCHIEF LEGAL OFFICER1.94K$15.44$29.88KBUY66.34%4.85KNov 08View
Sep 19, 2023Kathleen McGroddy-GoetzDIRECTOR1.00K$21.45$21.45KBUY12.45%9.03KSep 15View
May 22, 2023Dick AllenDIRECTOR9.00K$29.32$265.52KBUY∞1.00KMay 18 - May 22View
May 19, 2023Peyton R HowellDIRECTOR3.00K$30.16$90.49KBUY54.05%8.55KMay 17View
May 16, 2023Leigh VossellerEVP & CHIEF FINANCIAL OFFICER3.02K$32.77$98.81KBUY26.59%14.35KMay 12View
Mar 07, 2023David B BergerEVP & CHIEF OPERATING OFFICER0.00$30.02-$223.28KSELL-OPTIONS0.00%3.61KMar 03View
Dec 19, 2022David B BergerEVP & CHIEF OPERATING OFFICER0.00$29.58-$535.80KSELL-OPTIONS0.00%3.27KDec 15 - Dec 16View
Jun 10, 2022David B BergerEVP & CHIEF OPERATING OFFICER-3.10K$41.94-$524.50KSELL-53.43%2.70KJun 08View
May 19, 2022Kim D BlickenstaffDIRECTOR11.56K$72.77$59.01KSELL-OPTIONS5.97%205.19KMay 17 - May 18View
May 10, 2022Leigh VossellerEVP & CHIEF FINANCIAL OFFICER2.50K$74.61$186.53KBUY36.97%9.26KMay 06 - May 09View
May 10, 2022John F SheridanPRESIDENT & CEO2.50K$69.90$174.75KBUY33.08%10.06KMay 09View
May 10, 2022Peyton R HowellDIRECTOR2.00K$74.85$149.69KBUY210.97%2.95KMay 06View
May 10, 2022Christopher J TwomeyDIRECTOR125.00$92.73-$209.24SELL-OPTIONS1.34%9.46KMay 05View
May 04, 2022Rebecca B RobertsonDIRECTOR0.00$65.36-$94.09KSELL-OPTIONS0.00%0.00May 02View
May 04, 2022Rebecca B RobertsonDIRECTOR0.00$65.36-$94.09KSELL-OPTIONS0.00%0.00May 02View
Apr 05, 2022David B BergerEVP & CHIEF OPERATING OFFICER0.00$68.37-$99.02KSELL-OPTIONS0.00%4.96KApr 01View
Mar 21, 2022David B BergerEVP & CHIEF OPERATING OFFICER0.00$63.61-$447.54KSELL-OPTIONS0.00%4.96KMar 16View
Mar 16, 2022Kathleen McGroddy-GoetzDIRECTOR-405.00$106.00-$42.93KSELL-33.22%814.00Mar 14View
Mar 02, 2022David B BergerEVP & CHIEF OPERATING OFFICER266.00$65.75-$109.67KSELL-OPTIONS5.67%4.96KFeb 28 - Mar 01View
Feb 03, 2022Rebecca B RobertsonDIRECTOR0.00$75.98-$125.95KSELL-OPTIONS0.00%0.00Feb 01View
Feb 03, 2022David B BergerEVP, BUS OPS & COMPLIANCE0.00$68.38-$99.05KSELL-OPTIONS0.00%4.69KFeb 01View
Jan 05, 2022David B BergerEVP, BUS OPS & COMPLIANCE0.00$84.01-$130.30KSELL-OPTIONS0.00%4.69KJan 03View
Dec 29, 2021Elizabeth A. GasserEVP, CHIEF STRATEGY OFFICER0.00$119.50-$69.08KSELL-OPTIONS0.00%431.00Dec 27View
Dec 29, 2021James LealSVP, OPERATIONS0.00$103.41-$183.14KSELL-OPTIONS0.00%4.01KDec 27View
Dec 17, 2021David B BergerEVP, BUS OPS & COMPLIANCE0.00$81.56-$1.50MSELL-OPTIONS0.00%4.69KDec 15View
Dec 09, 2021Elizabeth A. GasserEVP, CHIEF STRATEGY OFFICER0.00$113.82-$56.71KSELL-OPTIONS0.00%431.00Dec 07View
Dec 01, 2021James LealSVP, OPERATIONS156.00$93.11-$164.00KSELL-OPTIONS4.05%4.01KNov 29View
Dec 01, 2021David B BergerEVP, BUS OPS & COMPLIANCE204.00$73.75-$135.77KSELL-OPTIONS4.54%4.69KNov 29 - Dec 01View
Nov 17, 2021Susan MorrisonEVP & CHIEF ADMIN. OFFICER0.00$80.53-$4.27MSELL-OPTIONS0.00%8.08KNov 16View
Nov 05, 2021Susan MorrisonEVP & CHIEF ADMIN. OFFICER0.00$80.43-$662.01KSELL-OPTIONS0.00%8.08KNov 03View
Nov 05, 2021Elizabeth A. GasserEVP, CHIEF STRATEGY OFFICER-975.00$113.94-$1.22MSELL-80.05%243.00Nov 03View
Nov 05, 2021Leigh VossellerEVP & CHIEF FINANCIAL OFFICER0.00$79.46-$1.21MSELL-OPTIONS0.00%6.29KNov 03View
Nov 03, 2021Rebecca B RobertsonDIRECTOR-392.00$84.89-$165.99KSELL-100.00%0.00Nov 01View
Nov 03, 2021David B BergerEVP, BUS OPS & COMPLIANCE0.00$77.28-$116.84KSELL-OPTIONS0.00%4.49KNov 01View
Oct 28, 2021James LealSVP, OPERATIONS0.00$92.85-$142.77KSELL-OPTIONS0.00%3.75KOct 27View
Oct 14, 2021Susan MorrisonEVP & CHIEF ADMIN. OFFICER0.00$70.93-$1.23MSELL-OPTIONS0.00%8.08KOct 13View
Oct 14, 2021Leigh VossellerEVP & CHIEF FINANCIAL OFFICER0.00$75.70-$2.27MSELL-OPTIONS0.00%6.29KOct 12 - Oct 14View
Oct 14, 2021David B BergerEVP, BUS OPS & COMPLIANCE0.00$74.07-$1.10MSELL-OPTIONS0.00%4.49KOct 12View
Oct 04, 2021David B BergerEVP, BUS OPS & COMPLIANCE0.00$68.43-$99.14KSELL-OPTIONS0.00%4.49KOct 01View
Sep 29, 2021James LealSVP, OPERATIONS0.00$88.54-$126.43KSELL-OPTIONS0.00%3.75KSep 27View
Sep 17, 2021Leigh VossellerEVP & CHIEF FINANCIAL OFFICER0.00$71.93-$1.06MSELL-OPTIONS0.00%6.29KSep 15 - Sep 16View
Sep 17, 2021David B BergerEVP, BUS OPS & COMPLIANCE0.00$70.43-$928.21KSELL-OPTIONS0.00%4.49KSep 15View
Sep 15, 2021Leigh VossellerEVP & CHIEF FINANCIAL OFFICER0.00$69.81-$1.02MSELL-OPTIONS0.00%6.29KSep 13View
Sep 15, 2021Brian B HansenEVP & CHIEF COMMERCIAL OFFICER0.00$83.81-$2.26MSELL-OPTIONS0.00%6.33KSep 13View
Sep 09, 2021James LealSVP, OPERATIONS0.00$102.67-$145.32KSELL-OPTIONS0.00%3.75KSep 07View
Sep 09, 2021Christopher J TwomeyDIRECTOR-2.80K$128.43-$360.10KSELL-28.82%6.92KSep 07 - Sep 08View
Sep 03, 2021Christopher J TwomeyDIRECTOR-8.70K$115.00-$1.00MSELL-47.20%9.73KSep 02View
Sep 03, 2021Kim D BlickenstaffDIRECTOR-28.70K$113.36-$3.25MSELL-12.32%204.28KSep 02View
Aug 31, 2021James LealSVP, OPERATIONS155.00$81.07-$98.59KSELL-OPTIONS4.31%3.75KAug 27View
Aug 18, 2021David B BergerEVP, CHIEF BUSINESS/COMPLIANCE0.00$64.35-$909.85KSELL-OPTIONS0.00%4.28KAug 16 - Aug 17View
Aug 18, 2021Kim D BlickenstaffDIRECTOR-50.00K$108.96-$5.45MSELL-19.66%204.28KAug 16 - Aug 17View
Aug 16, 2021Kim D BlickenstaffDIRECTOR-63.99K$106.83-$6.84MSELL-20.11%254.28KAug 12 - Aug 13View
Aug 12, 2021Kim D BlickenstaffDIRECTOR-3.21K$107.21-$344.13KSELL-1.00%318.27KAug 10View
Aug 10, 2021John F SheridanPRESIDENT & CEO0.00$62.53-$1.36MSELL-OPTIONS0.00%6.20KAug 06 - Aug 09View
Aug 10, 2021Kim D BlickenstaffDIRECTOR-82.80K$107.70-$8.92MSELL-20.58%319.59KAug 06 - Aug 09View
Aug 03, 2021Rebecca B RobertsonDIRECTOR-1.50K$107.51-$161.26KSELL-79.28%392.00Aug 02View
Aug 03, 2021Dick AllenDIRECTOR-2.53K$107.00-$270.28KSELL-29.63%6.00KJul 30View
Jul 30, 2021Christopher J TwomeyDIRECTOR-10.50K$104.97-$1.10MSELL-43.91%13.41KJul 29View
Jul 29, 2021James LealSVP, OPERATIONS0.00$76.88-$84.55KSELL-OPTIONS0.00%3.60KJul 27View
Jun 30, 2021James LealSVP, OPERATIONS0.00$74.36-$365.94KSELL-OPTIONS0.00%3.60KJun 28View
Jun 10, 2021Rebecca B RobertsonDIRECTOR0.00$62.00-$28.00KSELL-OPTIONS0.00%1.89KJun 09View
Jun 10, 2021Kim D BlickenstaffDIRECTOR-38.00K$88.14-$3.35MSELL-8.36%416.28KJun 08View
Jun 03, 2021Rebecca B RobertsonDIRECTOR0.00$59.56-$51.11KSELL-OPTIONS0.00%1.89KJun 01View
Jun 01, 2021David B BergerEVP, CHIEF BUSINESS/COMPLIANCE-820.00$47.67-$354.57KSELL-16.07%4.28KMay 27 - May 28View
May 20, 2021David B BergerEVP, CHIEF BUSINESS/COMPLIANCE338.00$79.52$19.76KSELL-OPTIONS∞242.00May 17 - May 18View
May 20, 2021Christopher J TwomeyDIRECTOR55.00$81.38-$61.85SELL-OPTIONS0.38%14.52KMay 19View
Apr 23, 2021Christopher J TwomeyDIRECTOR-10.50K$94.68-$994.15KSELL-42.00%14.50KApr 21 - Apr 22View
Mar 17, 2021Kim D BlickenstaffDIRECTOR-200.00K$87.27-$17.45MSELL-30.66%452.39KMar 15 - Mar 16View
Mar 12, 2021David B BergerEVP, CHIEF BUSINESS/COMPLIANCE0.00$49.61-$702.23KSELL-OPTIONS0.00%4.77KMar 11View
Mar 03, 2021Rebecca B RobertsonDIRECTOR0.00$65.07-$93.21KSELL-OPTIONS0.00%0.00Mar 01View
Dec 17, 2020Kim D Blickenstaff—-108.20K$87.99-$9.52MSELL-14.23%652.39KDec 15 - Dec 16View
Dec 15, 2020Kim D Blickenstaff—-9.15K$93.00-$850.95KSELL-1.19%760.59KDec 11View
Dec 10, 2020Kim D Blickenstaff—-54.85K$92.80-$5.09MGIFT-6.65%769.74KDec 08 - Dec 09View
Dec 03, 2020Kim D Blickenstaff—-25.00K$97.01-$2.43MSELL-2.94%824.59KDec 01View
Dec 03, 2020Rebecca B Robertson—0.00$64.01-$90.04KOPTION EXERCISE0.00%0.00Dec 01View
Nov 16, 2020Kim D Blickenstaff—-16.80K$106.88-$1.80MSELL-1.94%849.59KNov 12View
Nov 12, 2020Kim D Blickenstaff—-18.95K$55.57-$2.44MOPTION EXERCISE-2.14%866.39KNov 10View
Nov 12, 2020Dick Allen—-5.00K$76.46-$1.85MGIFT-13.32%32.53KNov 09View
Oct 15, 2020David B Berger—0.00$69.06-$501.95KOPTION EXERCISE0.00%4.77KOct 13View
Oct 15, 2020Leigh Vosseller—0.00$69.87-$1.02MOPTION EXERCISE0.00%4.67KOct 13View
Oct 15, 2020John F Sheridan—0.00$70.09-$1.54MOPTION EXERCISE0.00%3.76KOct 13View
Oct 09, 2020Brian B Hansen—0.00$84.63-$993.94KOPTION EXERCISE0.00%4.67KOct 07View
Sep 30, 2020Brian B Hansen—0.00$82.13-$274.95KOPTION EXERCISE0.00%4.67KSep 29View
Sep 17, 2020Brian B Hansen—0.00$82.25-$647.29KOPTION EXERCISE0.00%4.67KSep 16View
Sep 17, 2020John F Sheridan—0.00$64.44-$911.58KOPTION EXERCISE0.00%3.76KSep 15 - Sep 16View
Sep 04, 2020Brian B Hansen—0.00$73.11-$2.99MOPTION EXERCISE0.00%4.67KSep 03View
Sep 04, 2020Rebecca B Robertson—0.00$74.07-$761.36KOPTION EXERCISE0.00%0.00Sep 02View
Sep 01, 2020Susan Morrison—0.00$66.43-$1.90MOPTION EXERCISE0.00%6.26KAug 28 - Sep 01View
Aug 19, 2020Kim D Blickenstaff—9.02K$82.00-$1.10MOPTION EXERCISE1.03%885.34KAug 18View
Aug 12, 2020Kim D Blickenstaff—2.69K$77.69-$326.92KOPTION EXERCISE0.31%876.32KAug 10View
Aug 10, 2020Kim D Blickenstaff—289.04K$59.53-$22.57MOPTION EXERCISE49.44%873.64KAug 06 - Aug 07View
Aug 04, 2020Susan Morrison—0.00$58.84-$4.97MOPTION EXERCISE0.00%6.26KJul 31View
Aug 04, 2020Christopher J Twomey—-10.00K$109.16-$1.09MGIFT-36.36%17.50KJul 31View
Aug 04, 2020Leigh Vosseller—0.00$64.45-$911.72KOPTION EXERCISE0.00%4.67KJul 31View
Aug 04, 2020Brian B Hansen—0.00$66.22-$1.90MOPTION EXERCISE0.00%4.67KAug 03View
Aug 04, 2020John F Sheridan—0.00$59.26-$2.85MOPTION EXERCISE0.00%3.76KAug 03View
Jul 07, 2020Christopher J Twomey—-10.00K$100.52-$1.01MGIFT-33.33%20.00KJul 02View
Jul 07, 2020David B Berger—0.00$52.12-$198.13KOPTION EXERCISE0.00%4.77KJul 06View
Jul 07, 2020Leigh Vosseller—0.00$61.95-$861.79KOPTION EXERCISE0.00%4.67KJul 06View
Jul 02, 2020Kim D Blickenstaff—-50.00K$95.57-$4.78MSELL-7.88%584.59KJun 30View
Jul 02, 2020Leigh Vosseller—0.00$52.19-$1.82MOPTION EXERCISE0.00%4.67KJun 30 - Jul 02View
Jun 04, 2020David B Berger—0.00$42.20-$158.44KOPTION EXERCISE0.00%4.77KJun 03View
May 08, 2020Dick Allen—-3.50K$89.00-$311.50KSELL-8.40%38.18KMay 07View
May 08, 2020Christopher Twomey—-10.00K$89.67-$896.70KGIFT-30.77%22.50KMay 07View
May 08, 2020Leigh Vosseller—0.00$46.33-$874.85KOPTION EXERCISE0.00%3.41KMay 07View
May 04, 2020David B Berger—0.00$40.46-$151.47KOPTION EXERCISE0.00%3.51KMay 04View
May 04, 2020Christopher Twomey—-4.31K$80.00-$344.64KSELL-14.70%25.00KApr 30View
Apr 08, 2020David B Berger—0.00$35.09-$130.00KOPTION EXERCISE0.00%3.51KApr 06View
Mar 04, 2020David B Berger—0.00$39.88-$149.15KOPTION EXERCISE0.00%3.51KMar 03View
Feb 28, 2020Dick Allen—205.00$76.28-$48.46OPTION EXERCISE0.53%38.68KFeb 26View
Feb 24, 2020John F Sheridan—0.00$45.23-$2.56MOPTION EXERCISE0.00%2.50KFeb 21View
Feb 14, 2020David B Berger—0.00$42.63-$1.28MOPTION EXERCISE0.00%3.51KFeb 13View
Feb 12, 2020Leigh Vosseller—0.00$41.31-$774.45KOPTION EXERCISE0.00%3.41KFeb 10 - Feb 11View
Feb 04, 2020David B Berger—0.00$39.02-$145.73KOPTION EXERCISE0.00%3.51KFeb 03View
Jan 31, 2020Dick Allen—0.00$41.28-$718.63KOPTION EXERCISE0.00%10.00KJan 29View
Jan 31, 2020Brian B Hansen—0.00$47.33-$2.85MOPTION EXERCISE0.00%2.99KJan 29 - Jan 30View
Jan 31, 2020Leigh Vosseller—0.00$39.26-$733.35KOPTION EXERCISE0.00%3.41KJan 29View
Jan 31, 2020Kim D Blickenstaff—-50.00K$75.92-$3.80MSELL-7.23%641.75KJan 29View
Jan 31, 2020David B Berger—0.00$38.61-$864.39KOPTION EXERCISE0.00%3.51KJan 29View
Jan 17, 2020David B Berger—0.00$35.21-$521.92KOPTION EXERCISE0.00%3.51KJan 16View
Jan 17, 2020Brian B Hansen—0.00$69.76-$697.62KOPTION EXERCISE0.00%2.99KJan 16View
Dec 18, 2019Kim D BlickenstaffEXECUTIVE CHAIRMAN-200.00K$59.85-$11.97MSELL-22.43%691.75KDec 16View
Nov 26, 2019Leigh VossellerEVP & CHIEF FINANCIAL OFFICER0.00$36.47-$677.60KSELL-OPTIONS0.00%3.41KNov 25View
Nov 26, 2019John F SheridanPRESIDENT & CEO0.00$36.30-$31.14KSELL-OPTIONS0.00%2.50KNov 25View
Nov 18, 2019Leigh VossellerEVP & CHIEF FINANCIAL OFFICER0.00$34.00-$628.23KSELL-OPTIONS0.00%3.41KNov 18View
Nov 06, 2019Brian B HansenEVP & CHIEF COMMERCIAL OFFICER0.00$32.30-$891.28KSELL-OPTIONS0.00%2.99KNov 04View
Sep 09, 2019John F SheridanPRESIDENT & CEO0.00$36.31-$643.24KSELL-OPTIONS0.00%2.50KSep 06View
Sep 03, 2019David B BergerEVP, CHIEF LEGAL & COMPLIANCE0.00$37.30-$138.82KSELL-OPTIONS0.00%3.51KSep 03View
Aug 30, 2019Kim D BlickenstaffEXECUTIVE CHAIRMAN-100.00K$70.96-$7.10MSELL-10.08%891.75KAug 28 - Aug 29View
Aug 29, 2019Douglass A. RoederDIRECTOR-308.30K$70.32-$21.68MSELL-96.96%9.67KAug 27 - Aug 28View
Aug 28, 2019Brian B HansenEVP & CHIEF COMMERCIAL OFFICER0.00$44.43-$356.39KSELL-OPTIONS0.00%2.99KAug 27View
Aug 14, 2019Edward L CahillDIRECTOR0.00$32.78-$85.71KSELL-OPTIONS0.00%3.98KAug 13View
Aug 13, 2019Brian B HansenEVP & CHIEF COMMERCIAL OFFICER0.00$32.78-$905.70KSELL-OPTIONS0.00%2.99KAug 12View
Aug 06, 2019Douglas A RoederDIRECTOR-9.47K$70.01-$663.08KSELL-42.81%12.65KAug 02View
Aug 06, 2019David B BergerEVP, CHIEF LEGAL & COMPLIANCE0.00$32.58-$119.94KSELL-OPTIONS0.00%3.51KAug 05View
Aug 06, 2019Brian B HansenEVP & CHIEF COMMERCIAL OFFICER0.00$44.44-$255.75KSELL-OPTIONS0.00%2.99KAug 02View
Aug 06, 2019Howard E. Greene, Jr.DIRECTOR-10.00K$61.50-$615.04KSELL-25.00%30.00KAug 05View

FAQ

Q

Is insider trading legal?

A
Insider trading is legal so long as the insiders report those trades to the SEC. Illegal securities trading occurs when the insider is violating a fiduciary duty or fails to report their trades.
Q

What are some examples of market manipulation?

A
Insider trading, pump and dump schemes, front running and wash trades are all examples of market manipulation. Investors who track insider asset movement should think carefully about why these insiders are trading their stocks before moving forward.

Browse insider trades on all stocks.

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