Insider Transactions in Q4 2025 at Tandem Diabetes Care Inc (TNDM)
Insider Transaction List (Q4 2025)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 15
2025
|
Rick Carpenter Chief Technology Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
207
-0.85%
|
$4,554
$22.11 P/Share
|
|
Dec 15
2025
|
Rick Carpenter Chief Technology Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
406
+1.63%
|
-
|
|
Dec 15
2025
|
Mark David Novara EVP & CHIEF COMMERCIAL OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
3,843
-9.66%
|
$84,546
$22.11 P/Share
|
|
Dec 15
2025
|
Mark David Novara EVP & CHIEF COMMERCIAL OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
7,415
+15.71%
|
-
|
|
Dec 04
2025
|
Elizabeth Anne Gasser EVP, Chief Strategy Officer |
BUY
Other acquisition or disposition
|
Indirect |
3,000
+10.36%
|
-
|
|
Dec 04
2025
|
Elizabeth Anne Gasser EVP, Chief Strategy Officer |
SELL
Other acquisition or disposition
|
Direct |
3,000
-100.0%
|
-
|
|
Nov 17
2025
|
Shannon Marie Hansen EVP & Chief Legal Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
1,098
-1.72%
|
$19,764
$18.61 P/Share
|
|
Nov 17
2025
|
Shannon Marie Hansen EVP & Chief Legal Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
3,063
+4.56%
|
-
|
|
Nov 17
2025
|
Shannon Marie Hansen EVP & Chief Legal Officer |
BUY
Grant, award, or other acquisition
|
Direct |
800
+3.94%
|
$12,000
$15.59 P/Share
|
|
Nov 17
2025
|
Leigh Vosseller EVP & CHIEF FINANCIAL OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
1,074
-1.42%
|
$19,332
$18.61 P/Share
|
|
Nov 17
2025
|
Leigh Vosseller EVP & CHIEF FINANCIAL OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
2,999
+3.83%
|
-
|
|
Nov 17
2025
|
Jean Claude Kyrillos EVP & Chief Operating Officer |
BUY
Grant, award, or other acquisition
|
Direct |
160
+0.7%
|
$2,400
$15.59 P/Share
|
|
Nov 17
2025
|
Mark David Novara EVP & CHIEF COMMERCIAL OFFICER |
SELL
Payment of exercise price or tax liability
|
Direct |
40
-0.12%
|
$720
$18.61 P/Share
|
|
Nov 17
2025
|
Mark David Novara EVP & CHIEF COMMERCIAL OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
76
+0.23%
|
-
|
|
Nov 17
2025
|
Rick Carpenter Chief Technology Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
1,186
-2.43%
|
$21,348
$18.61 P/Share
|
|
Nov 17
2025
|
Rick Carpenter Chief Technology Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
2,334
+4.55%
|
-
|
|
Nov 17
2025
|
Rick Carpenter Chief Technology Officer |
BUY
Grant, award, or other acquisition
|
Direct |
339
+1.46%
|
$5,085
$15.59 P/Share
|
|
Nov 17
2025
|
Elizabeth Anne Gasser EVP, Chief Strategy Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
1,392
-20.39%
|
$25,056
$18.61 P/Share
|
|
Nov 17
2025
|
Elizabeth Anne Gasser EVP, Chief Strategy Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
2,599
+27.36%
|
-
|
|
Nov 17
2025
|
Elizabeth Anne Gasser EVP, Chief Strategy Officer |
BUY
Grant, award, or other acquisition
|
Direct |
586
+24.63%
|
$8,790
$15.59 P/Share
|
|
Nov 17
2025
|
John F Sheridan PRESIDENT & CEO |
SELL
Payment of exercise price or tax liability
|
Direct |
5,817
-2.44%
|
$104,706
$18.61 P/Share
|
|
Nov 17
2025
|
John F Sheridan PRESIDENT & CEO |
BUY
Exercise of conversion of derivative security
|
Direct |
11,454
+4.59%
|
-
|
|
Nov 17
2025
|
Susan Morrison EVP & Chief Admin. Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
744
-0.91%
|
$13,392
$18.61 P/Share
|
|
Nov 17
2025
|
Susan Morrison EVP & Chief Admin. Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
2,599
+3.08%
|
-
|
|
Oct 15
2025
|
Jean Claude Kyrillos EVP & Chief Operating Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
1,301
-5.49%
|
$18,214
$14.75 P/Share
|
|
Oct 15
2025
|
Jean Claude Kyrillos EVP & Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
3,636
+13.31%
|
-
|