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Tandem Diabetes Care Inc (TNDM) Insider Trading

Total insider buys:
  • $9,279,633.51
Total insider sells:
  • $214,215,215.91
Most recent insider trade:
  • March 7, 2025
Most active insider trader:
  • David B Berger
Trader NameDateTitleAmountPriceTypeTotal Value
March 7, 2025COO10,538$18.12Buy$190,948.56
Nov. 20, 2024Director10,000$30.00Sell$300,000.00
Nov. 15, 2024EVP532$23.24Buy$12,363.68
May 30, 2024Director5,000$51.68Sell$258,400.00
Nov. 27, 2023Director5,000$18.96Buy$94,800.00
Nov. 8, 2023Insider1,935$15.44Buy$29,876.40
Nov. 8, 2023CFO6,200$15.39Buy$95,418.00
Sept. 15, 2023Director1,000$21.45Buy$21,450.00
May 18, 2023Director10,000$29.47Buy$294,700.00
May 12, 2023CFO3,015$32.77Buy$98,801.55
March 3, 2023COO10,000$41.19Sell$411,900.00
Dec. 16, 2022COO10,000$40.25Sell$402,500.00
May 17, 2022Director10,762$92.91Sell$999,897.42
May 9, 2022CFO500$70.00Buy$35,000.00
May 9, 2022CEO2,500$69.90Buy$174,750.00
May 6, 2022CFO2,000$75.76Buy$151,520.00
May 5, 2022Director248$111.73Sell$27,709.04
May 2, 2022Director1,500$96.73Sell$145,095.00
March 16, 2022COO5,000$108.37Sell$541,850.00
March 14, 2022Director405$106.00Sell$42,930.00
March 1, 2022COO1,000$112.68Sell$112,680.00
Feb. 1, 2022EVP1,000$117.91Sell$117,910.00
Feb. 1, 2022Director1,500$117.97Sell$176,955.00
Jan. 3, 2022EVP1,000$149.16Sell$149,160.00
Dec. 27, 2021SVP1,906$151.45Sell$288,663.70
Dec. 27, 2021EVP1,084$151.36Sell$164,074.24
Dec. 15, 2021EVP12,000$144.25Sell$1,731,000.00
Dec. 7, 2021EVP1,083$140.00Sell$151,620.00
Dec. 1, 2021EVP1,000$128.44Sell$128,440.00
Nov. 29, 2021SVP1,905$130.96Sell$249,478.80
Nov. 16, 2021EVP34,624$142.21Sell$4,923,879.04
Nov. 3, 2021EVP5,376$142.00Sell$763,392.00
Nov. 3, 2021CFO10,000$140.05Sell$1,400,500.00
Nov. 1, 2021EVP1,000$135.70Sell$135,700.00
Nov. 1, 2021Director1,500$135.77Sell$203,655.00
Oct. 27, 2021SVP1,904$130.34Sell$248,167.36
Oct. 14, 2021CFO10,000$135.09Sell$1,350,900.00
Oct. 13, 2021EVP10,048$132.01Sell$1,326,436.48
Oct. 12, 2021CFO10,000$130.00Sell$1,300,000.00
Oct. 1, 2021EVP1,000$118.00Sell$118,000.00
Sept. 27, 2021SVP1,905$121.72Sell$231,876.60
Sept. 15, 2021CFO3,500$125.00Sell$437,500.00
Sept. 15, 2021EVP9,000$121.99Sell$1,097,910.00
Sept. 13, 2021EVP32,180$119.00Sell$3,829,420.00
Sept. 13, 2021CFO10,000$120.75Sell$1,207,500.00
Sept. 7, 2021SVP3,574$123.00Sell$439,602.00
Sept. 7, 2021Director304$123.00Sell$37,392.00
Sept. 2, 2021Director8,696$115.00Sell$1,000,040.00
Aug. 27, 2021SVP1,667$110.64Sell$184,436.88
Aug. 12, 2021Director13,990$105.50Sell$1,475,945.00
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  • Insiders are both buying and selling Tandem Diabetes Care Inc stock.

  • The insider traders at Tandem Diabetes Care Inc are: David B Berger, John F Sheridan, Kim D Blickenstaff, Leigh Vosseller, Brian B Hansen, Dick Allen, Christopher J Twomey, James Leal, Susan Morrison, Rebecca B Robertson, Douglas A Roeder, John F. Sheridan, Christopher J. Twomey, Kathleen Mcgroddy-Goetz, Richard P Valencia, Howard E Greene Jr, Elizabeth Anne Gasser, Brian B. Hansen, Jean-Claude Kyrillos, Edward L Cahill, Mark David Novara, Rebecca B. Robertson, Shannon Marie Hansen, and Hlm Venture Partners Ii, L.P.

  • The most active insider trader at Tandem Diabetes Care Inc is David B Berger with 28 trades.

  • Kim D Blickenstaff has sold the most Tandem Diabetes Care Inc stock with a total value of $98,676,435.60.

  • Hlm Venture Partners Ii, L.P. has bought the most Tandem Diabetes Care Inc stock with a total value of $6,000,000.00.

  • The most recent insider trade for Tandem Diabetes Care Inc was on March 7, 2025.

  • The single biggest insider buy for Tandem Diabetes Care Inc was from Hlm Venture Partners Ii, L.P. with a total value of $3,000,000.00 on Nov. 13, 2013.

  • The single biggest insider sell for Tandem Diabetes Care Inc was from Douglas A Roeder with a total value of $21,679,445.04 on Aug. 28, 2019.