TNDM Insider Trading

Insider Ownership Percentage: 2.50%
Insider Buying (Last 12 Months): $635,045.95
Insider Selling (Last 12 Months): $0.00

Tandem Diabetes Care Insider Trading History Chart

This chart shows the insider buying and selling history at Tandem Diabetes Care by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Tandem Diabetes Care Share Price & Price History

Current Price: $35.30
Price Change: Price Increase of +1.61 (4.78%)
As of 03/27/2024 01:00 AM ET

This chart shows the closing price history over time for TNDM up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Tandem Diabetes Care Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/27/2023Dick AllenDirectorBuy5,000$18.96$94,800.0019,962View SEC Filing Icon  
11/8/2023Leigh VossellerCFOBuy6,200$15.39$95,418.0011,860View SEC Filing Icon  
11/8/2023Shannon Marie HansenInsiderBuy1,935$15.44$29,876.401,935View SEC Filing Icon  
9/15/2023Kathleen McGroddy-GoetzDirectorBuy1,000$21.45$21,450.009,032View SEC Filing Icon  
5/18/2023Dick AllenDirectorBuy10,000$29.47$294,700.0012,205View SEC Filing Icon  
5/12/2023Leigh VossellerCFOBuy3,015$32.77$98,801.555,660View SEC Filing Icon  
3/3/2023David B. BergerCOOSell10,000$41.19$411,900.003,365View SEC Filing Icon  
12/16/2022David B. BergerCOOSell10,000$40.25$402,500.003,029View SEC Filing Icon  
6/8/2022David B. BergerCOOSell10,097$65.02$656,506.942,457View SEC Filing Icon  
5/17/2022Kim D. BlickenstaffDirectorSell10,762$92.91$999,897.42205,190View SEC Filing Icon  
5/9/2022John F. SheridanCEOBuy2,500$69.90$174,750.0010,058View SEC Filing Icon  
5/9/2022Leigh VossellerCFOBuy500$70.00$35,000.009,118View SEC Filing Icon  
5/6/2022Leigh VossellerCFOBuy2,000$75.76$151,520.008,618View SEC Filing Icon  
5/5/2022Christopher J TwomeyDirectorSell248$111.73$27,709.045,112View SEC Filing Icon  
5/2/2022Rebecca B. RobertsonDirectorSell1,500$96.73$145,095.00View SEC Filing Icon  
3/16/2022David B. BergerCOOSell5,000$108.37$541,850.00View SEC Filing Icon  
3/14/2022Kathleen McGroddy-GoetzDirectorSell405$106.00$42,930.00View SEC Filing Icon  
3/1/2022David B. BergerCOOSell1,000$112.68$112,680.00View SEC Filing Icon  
2/1/2022David B. BergerEVPSell1,000$117.91$117,910.00View SEC Filing Icon  
2/1/2022Rebecca B. RobertsonDirectorSell1,500$117.97$176,955.00View SEC Filing Icon  
1/3/2022David B. BergerEVPSell1,000$149.16$149,160.00View SEC Filing Icon  
12/27/2021Elizabeth Anne GasserEVPSell1,084$151.36$164,074.24View SEC Filing Icon  
12/27/2021James LealSVPSell1,906$151.45$288,663.70View SEC Filing Icon  
12/15/2021David B. BergerEVPSell12,000$144.25$1,731,000.00View SEC Filing Icon  
12/7/2021Elizabeth Anne GasserEVPSell1,083$140.00$151,620.00View SEC Filing Icon  
12/1/2021David B. BergerEVPSell1,000$128.44$128,440.00View SEC Filing Icon  
11/29/2021James LealSVPSell1,905$130.96$249,478.80View SEC Filing Icon  
11/16/2021Susan MorrisonEVPSell34,624$142.21$4,923,879.04View SEC Filing Icon  
11/3/2021Leigh VossellerCFOSell10,000$140.05$1,400,500.00View SEC Filing Icon  
11/3/2021Susan MorrisonEVPSell5,376$142.00$763,392.00View SEC Filing Icon  
11/1/2021David B. BergerEVPSell1,000$135.70$135,700.00View SEC Filing Icon  
11/1/2021Rebecca B. RobertsonDirectorSell1,500$135.77$203,655.00View SEC Filing Icon  
10/27/2021James LealSVPSell1,904$130.34$248,167.36View SEC Filing Icon  
10/14/2021Leigh VossellerCFOSell10,000$135.09$1,350,900.00View SEC Filing Icon  
10/13/2021Susan MorrisonEVPSell10,048$132.01$1,326,436.48View SEC Filing Icon  
10/12/2021Leigh VossellerCFOSell10,000$130.00$1,300,000.00View SEC Filing Icon  
10/1/2021David B. BergerEVPSell1,000$118.00$118,000.00View SEC Filing Icon  
9/27/2021James LealSVPSell1,905$121.72$231,876.60View SEC Filing Icon  
9/15/2021David B. BergerEVPSell9,000$121.99$1,097,910.00View SEC Filing Icon  
9/15/2021Leigh VossellerCFOSell3,500$125.00$437,500.00View SEC Filing Icon  
9/13/2021Brian B. HansenEVPSell32,180$119.00$3,829,420.008,513View SEC Filing Icon  
9/13/2021Leigh VossellerCFOSell10,000$120.75$1,207,500.0016,145View SEC Filing Icon  
9/7/2021Christopher J TwomeyDirectorSell304$123.00$37,392.00View SEC Filing Icon  
9/7/2021James LealSVPSell3,574$123.00$439,602.00View SEC Filing Icon  
9/2/2021Christopher J. TwomeyDirectorSell8,696$115.00$1,000,040.001,892View SEC Filing Icon  
8/27/2021James LealSVPSell1,667$110.64$184,436.88View SEC Filing Icon  
8/12/2021Kim D. BlickenstaffDirectorSell13,990$105.50$1,475,945.001,892View SEC Filing Icon  
8/10/2021Kim D. BlickenstaffDirectorSell3,210$107.21$344,144.101,892View SEC Filing Icon  
8/2/2021Rebecca B. RobertsonDirectorSell1,500$107.51$161,265.00View SEC Filing Icon  
7/29/2021Christopher J. TwomeyDirectorSell8,000$105.00$840,000.001,892View SEC Filing Icon  
7/27/2021James LealSVPSell1,666$102.25$170,348.505,262View SEC Filing Icon  
6/28/2021James LealSVPSell7,135$100.00$713,500.0010,263View SEC Filing Icon  
6/9/2021Rebecca B. RobertsonDirectorSell500$90.00$45,000.002,392View SEC Filing Icon  
5/28/2021David B. BergerEVPSell3,619$86.47$312,934.936,488View SEC Filing Icon  
5/19/2021Christopher J TwomeyDirectorSell269$89.03$23,949.07View SEC Filing Icon  
5/18/2021David B. BergerEVPSell201$89.14$17,917.144,862View SEC Filing Icon  
4/21/2021Christopher J TwomeyDirectorSell3,198$95.02$303,873.96View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Tandem Diabetes Care (NASDAQ:TNDM)

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at TNDM by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Tandem Diabetes Care Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/22/2024PNC Financial Services Group Inc.5,788$0.17M0.0%+79.4%0.009%Search for SEC Filing on Google Icon
3/18/2024Kingdon Capital Management L.L.C.194,200$5.74M0.7%N/A0.296%Search for SEC Filing on Google Icon
3/11/2024Vanguard Group Inc.7,021,906$207.71M0.0%+0.3%10.699%Search for SEC Filing on Google Icon
2/16/2024Price T Rowe Associates Inc. MD36,747$1.09M0.0%+5.5%0.056%Search for SEC Filing on Google Icon
2/16/2024Public Employees Retirement System of Ohio39,530$1.17M0.0%+50.6%0.061%Search for SEC Filing on Google Icon
2/15/2024Legal & General Group Plc181,367$5.37M0.0%-0.8%0.278%Search for SEC Filing on Google Icon
2/15/2024Barclays PLC49,650$1.47M0.0%-41.0%0.076%Search for SEC Filing on Google Icon
2/15/2024Vanguard Group Inc.7,021,906$207.71M0.0%+0.3%10.768%Search for SEC Filing on Google Icon
2/15/2024Voloridge Investment Management LLC952,562$28.18M0.1%-9.1%1.461%Search for SEC Filing on Google Icon
2/15/2024Voya Investment Management LLC19,559$0.58M0.0%-8.0%0.030%Search for SEC Filing on Google Icon
2/15/2024Weiss Multi Strategy Advisers LLC142,024$4.20M0.1%+361.6%0.218%Search for SEC Filing on Google Icon
2/15/2024Nuveen Asset Management LLC145,101$4.29M0.0%-7.1%0.223%Search for SEC Filing on Google Icon
2/15/2024Prelude Capital Management LLC7,925$0.23M0.0%N/A0.012%Search for SEC Filing on Google Icon
2/15/2024Price T Rowe Associates Inc. MD36,747$1.09M0.0%+5.5%0.056%Search for SEC Filing on Google Icon
2/15/2024Public Sector Pension Investment Board135,050$4M0.0%+67.9%0.207%Search for SEC Filing on Google Icon
2/15/2024Gilder Gagnon Howe & Co. LLC18,076$0.54M0.0%N/A0.028%Search for SEC Filing on Google Icon
2/15/2024Gotham Asset Management LLC75,273$2.23M0.0%+411.4%0.115%Search for SEC Filing on Google Icon
2/15/2024Brown Capital Management LLC734,627$21.73M0.3%-53.0%1.127%Search for SEC Filing on Google Icon
2/15/2024Bayesian Capital Management LP27,919$0.83M0.1%N/A0.043%Search for SEC Filing on Google Icon
2/15/2024Comerica Bank34,364$1.02M0.0%+15.1%0.053%Search for SEC Filing on Google Icon
2/14/2024Royal Bank of Canada68,407$2.02M0.0%+122.6%0.105%Search for SEC Filing on Google Icon
2/14/2024First Light Asset Management LLC360,243$10.66M0.9%-75.0%0.552%Search for SEC Filing on Google Icon
2/14/2024Point72 Asset Management L.P.990,336$29.29M0.1%+75,613.8%1.519%Search for SEC Filing on Google Icon
2/14/2024Creative Planning7,804$0.23M0.0%+6,143.2%0.012%Search for SEC Filing on Google Icon
2/14/2024BOKF NA18,472$0.55M0.0%-17.6%0.028%Search for SEC Filing on Google Icon
2/14/2024Bridgewater Associates LP68,384$2.02M0.0%-11.8%0.105%Search for SEC Filing on Google Icon
2/14/2024Bellevue Group AG1,992,317$58.93M0.9%-7.0%3.055%Search for SEC Filing on Google Icon
2/14/2024Invenomic Capital Management LP241,006$7.13M0.3%-11.5%0.370%Search for SEC Filing on Google Icon
2/14/2024Cresset Asset Management LLC17,600$0.52M0.0%N/A0.027%Search for SEC Filing on Google Icon
2/14/2024Eminence Capital LP5,170,451$152.94M2.3%-5.8%7.929%Search for SEC Filing on Google Icon
2/14/2024State of Tennessee Treasury Department34,520$1.02M0.0%-10.4%0.053%Search for SEC Filing on Google Icon
2/14/2024Sei Investments Co.7,683$0.23M0.0%-81.2%0.012%Search for SEC Filing on Google Icon
2/14/2024Shell Asset Management Co.15,270$0.45M0.0%-23.1%0.023%Search for SEC Filing on Google Icon
2/14/2024CenterBook Partners LP6,929$0.21M0.0%N/A0.011%Search for SEC Filing on Google Icon
2/13/2024Envestnet Asset Management Inc.185,140$5.48M0.0%+915.4%0.284%Search for SEC Filing on Google Icon
2/13/2024Northern Trust Corp350,824$10.38M0.0%-6.9%0.538%Search for SEC Filing on Google Icon
2/13/2024Public Employees Retirement Association of Colorado8,105$0.24M0.0%-35.5%0.012%Search for SEC Filing on Google Icon
2/13/2024Oppenheimer & Co. Inc.9,799$0.29M0.0%N/A0.015%Search for SEC Filing on Google Icon
2/13/2024Capital World Investors6,384,111$188.84M0.0%-2.5%9.790%Search for SEC Filing on Google Icon
2/13/2024Capital International Sarl56,242$1.66M0.1%+5.8%0.086%Search for SEC Filing on Google Icon
2/13/2024Capital International Ltd. CA55,912$1.65M0.1%-1.9%0.086%Search for SEC Filing on Google Icon
2/13/2024Capital International Investors1,083,561$32.05M0.0%-39.6%1.662%Search for SEC Filing on Google Icon
2/13/2024Goldman Sachs Group Inc.225,725$6.68M0.0%+179.3%0.344%Search for SEC Filing on Google Icon
2/13/2024Stephens Investment Management Group LLC962,272$28.46M0.4%-2.7%1.476%Search for SEC Filing on Google Icon
2/13/2024The Manufacturers Life Insurance Company 8,006$0.24M0.0%N/A0.012%Search for SEC Filing on Google Icon
2/13/2024KBC Group NV239,944$7.10M0.0%+256.1%0.368%Search for SEC Filing on Google Icon
2/13/2024Campbell & CO Investment Adviser LLC12,254$0.36M0.0%N/A0.019%Search for SEC Filing on Google Icon
2/13/2024California State Teachers Retirement System68,661$2.03M0.0%-3.9%0.105%Search for SEC Filing on Google Icon
2/12/2024Alberta Investment Management Corp262,574$7.77M0.1%+8.7%0.403%Search for SEC Filing on Google Icon
2/12/2024Capstone Investment Advisors LLC8,297$0.25M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/12/2024Stifel Financial Corp23,217$0.69M0.0%N/A0.036%Search for SEC Filing on Google Icon
2/12/2024Hsbc Holdings PLC13,575$0.41M0.0%-29.7%0.021%Search for SEC Filing on Google Icon
2/9/2024Advisory Services Network LLC6,928$0.21M0.0%N/A0.011%Search for SEC Filing on Google Icon
2/9/2024Orion Portfolio Solutions LLC36,767$1.04M0.0%N/A0.056%Search for SEC Filing on Google Icon
2/9/2024Commerce Bank15,562$0.46M0.0%N/A0.024%Search for SEC Filing on Google Icon
2/9/2024US Bancorp DE36,373$1.08M0.0%+222.0%0.056%Search for SEC Filing on Google Icon
2/9/2024Franklin Resources Inc.12,557$0.37M0.0%-4.6%0.019%Search for SEC Filing on Google Icon
2/9/2024GW&K Investment Management LLC1,226,758$36.29M0.3%N/A1.881%Search for SEC Filing on Google Icon
2/9/2024Trexquant Investment LP161,954$4.79M0.1%+159.9%0.248%Search for SEC Filing on Google Icon
2/9/2024Corient Private Wealth LLC10,020$0.30M0.0%N/A0.015%Search for SEC Filing on Google Icon
2/9/2024PNC Financial Services Group Inc.5,788$0.17M0.0%+79.4%0.009%Search for SEC Filing on Google Icon
2/8/2024Paradice Investment Management LLC1,081,886$32M4.0%-28.8%1.659%Search for SEC Filing on Google Icon
2/8/2024Quadrant Capital Group LLC3,976$0.12M0.0%+387.9%0.006%Search for SEC Filing on Google Icon
2/8/2024Janney Montgomery Scott LLC33,013$0.98M0.0%+55.5%0.051%Search for SEC Filing on Google Icon
2/7/2024Principal Financial Group Inc.344,349$10.19M0.0%-3.0%0.528%Search for SEC Filing on Google Icon
2/7/2024Dimensional Fund Advisors LP53,832$1.59M0.0%-60.1%0.083%Search for SEC Filing on Google Icon
2/7/2024Jump Financial LLC39,100$1.16M0.0%-80.9%0.060%Search for SEC Filing on Google Icon
2/7/2024BNP Paribas Financial Markets9,220$0.27M0.0%-60.0%0.014%Search for SEC Filing on Google Icon
2/6/2024Charles Schwab Investment Management Inc.396,741$11.74M0.0%+8.1%0.608%Search for SEC Filing on Google Icon
2/6/2024Lisanti Capital Growth LLC105,895$3.13M0.7%N/A0.162%Search for SEC Filing on Google Icon
2/6/2024M&T Bank Corp49,649$1.47M0.0%+118.7%0.076%Search for SEC Filing on Google Icon
2/6/2024Amalgamated Bank27,767$0.82M0.0%-4.9%0.043%Search for SEC Filing on Google Icon
2/6/2024Natixis Advisors L.P.34,681$1.03M0.0%N/A0.053%Search for SEC Filing on Google Icon
2/6/2024Swiss National Bank128,200$3.79M0.0%-9.7%0.197%Search for SEC Filing on Google Icon
2/5/2024Victory Capital Management Inc.13,484$0.40M0.0%-86.3%0.021%Search for SEC Filing on Google Icon
2/5/2024Van ECK Associates Corp5,900$0.18M0.0%+8.6%0.009%Search for SEC Filing on Google Icon
2/5/2024Russell Investments Group Ltd.247,325$7.32M0.0%+79.5%0.379%Search for SEC Filing on Google Icon
2/2/2024Truist Financial Corp87,484$2.59M0.0%N/A0.134%Search for SEC Filing on Google Icon
2/1/2024GAMMA Investing LLC2,470$73K0.0%N/A0.004%Search for SEC Filing on Google Icon
2/1/2024New York State Common Retirement Fund315,502$9.33M0.0%-0.2%0.484%Search for SEC Filing on Google Icon
2/1/2024Jennison Associates LLC1,290,590$38.18M0.0%+14.9%1.979%Search for SEC Filing on Google Icon
2/1/2024Handelsbanken Fonder AB14,800$0.44M0.0%+38.3%0.023%Search for SEC Filing on Google Icon
2/1/2024Signaturefd LLC1,691$50K0.0%+871.8%0.003%Search for SEC Filing on Google Icon
1/30/2024Zurcher Kantonalbank Zurich Cantonalbank 14,909$0.44M0.0%+10.4%0.023%Search for SEC Filing on Google Icon
1/30/2024Everence Capital Management Inc.9,020$0.27M0.0%N/A0.014%Search for SEC Filing on Google Icon
1/29/2024Lecap Asset Management Ltd.17,756$0.53M0.2%N/A0.027%Search for SEC Filing on Google Icon
1/29/2024Louisiana State Employees Retirement System32,600$0.96M0.0%N/A0.050%Search for SEC Filing on Google Icon
1/25/2024International Assets Investment Management LLC4,881$0.14M0.0%+2,858.2%0.007%Search for SEC Filing on Google Icon
1/25/2024Nisa Investment Advisors LLC4,450$0.13M0.0%-26.4%0.007%Search for SEC Filing on Google Icon
1/25/2024180 Wealth Advisors LLC8,037$0.23M0.0%N/A0.012%Search for SEC Filing on Google Icon
1/24/2024Mirae Asset Global Investments Co. Ltd.130,858$3.90M0.0%-15.2%0.201%Search for SEC Filing on Google Icon
1/24/2024International Assets Investment Management LLC4,881$0.14M0.0%+2,858.2%0.007%Search for SEC Filing on Google Icon
1/22/2024Oak Thistle LLC18,251$0.54M0.2%N/A0.028%Search for SEC Filing on Google Icon
1/22/2024JB Capital LLC24,063$0.71M0.1%+48.1%0.037%Search for SEC Filing on Google Icon
1/22/2024Chicago Capital LLC476,937$14.11M0.5%-47.3%0.731%Search for SEC Filing on Google Icon
1/19/2024State of Alaska Department of Revenue40,008$1.18M0.0%-1.3%0.061%Search for SEC Filing on Google Icon
1/16/2024Raymond James Financial Services Advisors Inc.15,845$0.47M0.0%-11.0%0.024%Search for SEC Filing on Google Icon
1/16/2024Raymond James & Associates91,985$2.72M0.0%+128.5%0.141%Search for SEC Filing on Google Icon
1/16/2024Legato Capital Management LLC10,810$0.32M0.0%N/A0.017%Search for SEC Filing on Google Icon
1/11/2024RiverPark Advisors LLC916$27K0.0%N/A0.001%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Tandem Diabetes Care logo
Tandem Diabetes Care, Inc., a medical device company, designs, develops, and commercializes technology solutions for people living with diabetes in the United States and internationally. The company's flagship product is the t:slim X2 insulin delivery system, a pump platform for managing insulin delivery and display continuous glucose monitoring sensor information directly on the pump home screen; and Tandem Mobi insulin pump, an automated insulin delivery system. It also sells single-use products, including cartridges for storing and delivering insulin, and infusion sets that connect the insulin pump to the user's body. In addition, the company offers Tandem Device Updater used to update the pump software from a personal computer; Tandem Source, a web-based data management platform, which provides a visual way to display diabetes therapy management data from the pumps, integrated CGMs, and supported blood glucose meters; and Sugarmate, a mobile app used to help people visualize diabetes therapy data. The company was formerly known as Phluid Inc. and changed its name to Tandem Diabetes Care, Inc. in January 2008. Tandem Diabetes Care, Inc. was incorporated in 2006 and is headquartered in San Diego, California.
Read More on Tandem Diabetes Care

Today's Range

Now: $35.30
Low: $33.09
High: $35.52

50 Day Range

MA: $26.54
Low: $22.09
High: $35.30

52 Week Range

Now: $35.30
Low: $13.82
High: $43.51

Volume

2,204,744 shs

Average Volume

2,361,562 shs

Market Capitalization

$2.32 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.08

Who are the company insiders with the largest holdings of Tandem Diabetes Care?

Tandem Diabetes Care's top insider investors include:
  1. Kim D Blickenstaff (Director)
  2. Dick Allen (Director)
  3. Leigh Vosseller (CFO)
  4. John F Sheridan (CEO)
  5. Kathleen Mcgroddy-Goetz (Director)
  6. Christopher J Twomey (Director)
  7. David B Berger (COO)
  8. Shannon Marie Hansen (Insider)
  9. Rebecca B Robertson (Director)
Learn More about top insider investors at Tandem Diabetes Care.

Who are the major institutional investors of Tandem Diabetes Care?

Tandem Diabetes Care's top institutional investors include:
  1. Vanguard Group Inc. — 10.77%
  2. Vanguard Group Inc. — 10.70%
  3. Capital World Investors — 9.79%
  4. Eminence Capital LP — 7.93%
  5. Bellevue Group AG — 3.06%
  6. Jennison Associates LLC — 1.98%
Learn More about top institutional investors of Tandem Diabetes Care stock.

Which institutional investors are selling Tandem Diabetes Care stock?

In the last quarter, TNDM stock was sold by these institutional investors:
  1. First Light Asset Management LLC
  2. Brown Capital Management LLC
  3. Capital International Investors
  4. Paradice Investment Management LLC
  5. Chicago Capital LLC
  6. Eminence Capital LP
  7. Jump Financial LLC
  8. Capital World Investors

Which institutional investors are buying Tandem Diabetes Care stock?

In the last quarter, TNDM stock was purchased by institutional investors including:
  1. GW&K Investment Management LLC
  2. Point72 Asset Management L.P.
  3. Kingdon Capital Management L.L.C.
  4. KBC Group NV
  5. Jennison Associates LLC
  6. Envestnet Asset Management Inc.
  7. Goldman Sachs Group Inc.
  8. Weiss Multi Strategy Advisers LLC
Within the last year, these company insiders have bought Tandem Diabetes Care stock:
  1. Kim D Blickenstaff (Director)
  2. Dick Allen (Director)
  3. Leigh Vosseller (CFO)
  4. John F Sheridan (CEO)
  5. Kathleen Mcgroddy-Goetz (Director)
Learn More investors buying Tandem Diabetes Care stock.