Insider Transactions Reported by 22 Insiders of TANDEM DIABETES CARE INC

Symbol
TNDM on Nasdaq
Location
San Diego, CA

Insiders trading volume in the past year

TANDEM DIABETES CARE INC executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Kim D. Blickenstaff Director $5,410,602 20 Nov 2024
John F. Sheridan PRESIDENT & CEO, Director $3,278,566 +$102,318 +3.2% 17 Feb 2026
Mark D. Novara Evp & Chief Commercial Officer $1,862,642 -$46 -0% 05 Mar 2026
Leigh A. Vosseller Evp & Chief Financial Officer $1,532,219 +$149,404 +11% 17 Feb 2026
Shannon M. Hansen EVP & Chief Legal Officer $1,402,712 17 Feb 2026
Susan Morrison EVP & Chief Admin. Officer $1,059,460 17 Feb 2026
Rick A. Carpenter Chief Technology Officer $1,057,991 17 Feb 2026
James A. Leal Chief Manufacturing Officer $872,995 23 May 2024
Elizabeth A. Gasser EVP, Chief Strategy Officer $813,282 17 Feb 2026
Jean-Claude Kyrillos EVP & Chief Operating Officer $506,986 15 Jan 2026
Christopher J. Twomey Director $455,744 21 May 2025
Peyton R. Howell Director $435,029 21 May 2025
Dick P. Allen Director $416,432 02 Jun 2025
Joao Paulo Falcao Malagueira Director $405,931 16 Jun 2025
Myoungil Cha Director $395,454 16 Jun 2025
Brian B. Hansen Evp & Chief Commercial Officer $372,401 27 Nov 2023
Kathleen McGroddy-Goetz Director $368,485 21 May 2025
Rajwant Sodhi Director $320,353 21 May 2025
Rebecca B. Robertson Director $284,481 21 May 2025
David B. Berger EVP & Chief Operating Officer $205,279 27 Nov 2023
Douglas A. Roeder Director $165,158 18 May 2022
Sandra Beaver Director $0 07 Nov 2025

Recent Insider Transactions by Companies or Individuals for TANDEM DIABETES CARE INC

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Mark D. Novara TNDM Common Stock Sale -0.01% $45.62 $22.81 -2 35,969 05 Mar 2026 Direct
Rick A. Carpenter TNDM Common Stock Tax liability -5.01% -1,312 24,881 17 Feb 2026 Direct
Rick A. Carpenter TNDM Common Stock Options Exercise 9.96% 2,334 25,778 17 Feb 2026 Direct
Rick A. Carpenter TNDM Restricted Stock Unit Options Exercise -61.9% -2,334 1,437 17 Feb 2026 Direct
Elizabeth A. Gasser TNDM Common Stock Tax liability -71.4% -1,534 616 17 Feb 2026 Direct
Elizabeth A. Gasser TNDM Common Stock Options Exercise 2,600 1,713 17 Feb 2026 Direct
Elizabeth A. Gasser TNDM Restricted Stock Unit Options Exercise -63.4% -2,600 1,503 17 Feb 2026 Direct
Susan Morrison TNDM Common Stock Tax liability -2.06% -882 41,910 17 Feb 2026 Direct
Susan Morrison TNDM Common Stock Options Exercise 6.43% 2,600 43,007 17 Feb 2026 Direct
Susan Morrison TNDM Restricted Stock Unit Options Exercise -63.4% -2,600 1,503 17 Feb 2026 Direct
Mark D. Novara TNDM Common Stock Tax liability -0.17% -62 35,971 17 Feb 2026 Direct
Mark D. Novara TNDM Common Stock Options Exercise 0.21% 77 36,033 17 Feb 2026 Direct
Mark D. Novara TNDM Restricted Stock Unit Options Exercise -16.8% -77 380 17 Feb 2026 Direct
John F. Sheridan TNDM Common Stock Tax liability -3.48% -4,363 121,108 17 Feb 2026 Direct
John F. Sheridan TNDM Common Stock Options Exercise 9.91% 11,454 127,091 17 Feb 2026 Direct
John F. Sheridan TNDM Restricted Stock Unit Options Exercise -67.7% -11,454 5,472 17 Feb 2026 Direct
Leigh A. Vosseller TNDM Common Stock Tax liability -3.11% -1,235 38,532 17 Feb 2026 Direct
Leigh A. Vosseller TNDM Common Stock Options Exercise 8.1% 2,998 40,027 17 Feb 2026 Direct
Leigh A. Vosseller TNDM Restricted Stock Unit Options Exercise -66.6% -2,998 1,503 17 Feb 2026 Direct
Shannon M. Hansen TNDM Common Stock Tax liability -5.48% -1,263 21,786 17 Feb 2026 Direct
Shannon M. Hansen TNDM Common Stock Options Exercise 14.8% 3,065 23,728 17 Feb 2026 Direct
Shannon M. Hansen TNDM Restricted Stock Unit Options Exercise -100% -3,065 0 17 Feb 2026 Direct
Jean-Claude Kyrillos TNDM Common Stock Tax liability -8.09% -2,118 24,062 15 Jan 2026 Direct
Jean-Claude Kyrillos TNDM Common Stock Options Exercise 16.1% 3,636 26,180 15 Jan 2026 Direct
Jean-Claude Kyrillos TNDM Restricted Stock Unit Options Exercise -14.3% -3,636 21,817 15 Jan 2026 Direct
Mark D. Novara TNDM Common Stock Tax liability -9.66% -3,843 35,956 15 Dec 2025 Direct
Mark D. Novara TNDM Common Stock Options Exercise 22.9% 7,415 39,799 15 Dec 2025 Direct
Mark D. Novara TNDM Restricted Stock Unit Options Exercise -20% -7,415 29,658 15 Dec 2025 Direct
Rick A. Carpenter TNDM Common Stock Tax liability -0.85% -207 24,252 15 Dec 2025 Direct
Rick A. Carpenter TNDM Common Stock Options Exercise 1.69% 406 24,459 15 Dec 2025 Direct
Rick A. Carpenter TNDM Restricted Stock Unit Options Exercise -100% -406 0 15 Dec 2025 Direct
Elizabeth A. Gasser TNDM Common Stock Other 13.1% 3,000 25,949 04 Dec 2025 See Footnote
Elizabeth A. Gasser TNDM Common Stock Other -100% -3,000 0 04 Dec 2025 Direct
Susan Morrison TNDM Common Stock Tax liability -1.82% -744 40,135 17 Nov 2025 Direct
Susan Morrison TNDM Common Stock Options Exercise 6.73% 2,599 41,231 17 Nov 2025 Direct
Susan Morrison TNDM Restricted Stock Unit Options Exercise -46.4% -2,599 3,006 17 Nov 2025 Direct
John F. Sheridan TNDM Common Stock Tax liability -4.83% -5,817 114,656 17 Nov 2025 Direct
John F. Sheridan TNDM Common Stock Options Exercise 10.5% 11,454 120,638 17 Nov 2025 Direct
John F. Sheridan TNDM Restricted Stock Unit Options Exercise -51.1% -11,454 10,943 17 Nov 2025 Direct
Elizabeth A. Gasser TNDM Common Stock Tax liability -35.8% -1,392 2,491 17 Nov 2025 Direct
Elizabeth A. Gasser TNDM Common Stock Options Exercise 263.1% 2,599 3,587 17 Nov 2025 Direct
Elizabeth A. Gasser TNDM Common Stock Award 48.6% 586 1,793 17 Nov 2025 Direct
Elizabeth A. Gasser TNDM Restricted Stock Unit Options Exercise -46.4% -2,599 3,006 17 Nov 2025 Direct
Rick A. Carpenter TNDM Common Stock Tax liability -4.78% -1,186 23,612 17 Nov 2025 Direct
Rick A. Carpenter TNDM Common Stock Options Exercise 10.5% 2,334 24,509 17 Nov 2025 Direct
Rick A. Carpenter TNDM Common Stock Award 1.5% 339 22,905 17 Nov 2025 Direct
Rick A. Carpenter TNDM Restricted Stock Unit Options Exercise -44.8% -2,334 2,874 17 Nov 2025 Direct
Mark D. Novara TNDM Common Stock Tax liability -0.12% -40 32,384 17 Nov 2025 Direct
Mark D. Novara TNDM Common Stock Options Exercise 0.23% 76 32,424 17 Nov 2025 Direct
Mark D. Novara TNDM Restricted Stock Unit Options Exercise -14.3% -76 457 17 Nov 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.