Rick Carpenter Tandem Diabetes Care Inc (TNDM) insider trading activity

Rick Carpenter is Chief Technology Officer of TANDEM DIABETES CARE INC. Currently has a direct ownership of 24,252 shares of TNDM, which is worth approximately $451,329. The most recent transaction as insider was on Dec 15, 2025, when has been sold 207 shares (Common Stock) at a price of $22.11 per share, resulting in proceeds of $4,576. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 24.3K

7.47% 3M change

62.38% 12M change

Total Value Held $451,329

Rick Carpenter Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 15 2025	SELL Payment of exercise price or tax liability	$4,576 $22.11 p/Share	207 Reduced 0.85%	24,252 Common Stock
Dec 15 2025	BUY Exercise of conversion of derivative security	-	406 Added 1.63%	24,459 Common Stock
Nov 17 2025	SELL Payment of exercise price or tax liability	$22,071 $18.61 p/Share	1,186 Reduced 4.7%	24,053 Common Stock
Nov 17 2025	BUY Exercise of conversion of derivative security	-	2,334 Added 8.7%	24,509 Common Stock
Nov 17 2025	BUY Grant, award, or other acquisition	$5,285 $15.59 p/Share	339 Added 1.46%	22,905 Common Stock
Sep 15 2025	SELL Payment of exercise price or tax liability	$2,502 $12.09 p/Share	207 Reduced 0.91%	22,566 Common Stock
Sep 15 2025	BUY Exercise of conversion of derivative security	-	406 Added 1.75%	22,773 Common Stock

Aug 15 2025	SELL Payment of exercise price or tax liability	$12,843 $10.82 p/Share	1,187 Reduced 5.04%	22,367 Common Stock
Aug 15 2025	BUY Exercise of conversion of derivative security	-	2,335 Added 9.28%	22,824 Common Stock
Jun 16 2025	SELL Payment of exercise price or tax liability	$4,297 $20.76 p/Share	207 Reduced 0.97%	21,219 Common Stock
Jun 16 2025	BUY Exercise of conversion of derivative security	-	406 Added 1.86%	21,426 Common Stock
May 15 2025	SELL Payment of exercise price or tax liability	$45,717 $22.7 p/Share	2,014 Reduced 8.74%	21,020 Common Stock
May 15 2025	BUY Exercise of conversion of derivative security	-	5,622 Added 20.13%	22,305 Common Stock
May 15 2025	BUY Grant, award, or other acquisition	$15,952 $15.64 p/Share	1,020 Added 5.53%	17,412 Common Stock
Mar 17 2025	SELL Payment of exercise price or tax liability	$2,798 $19.17 p/Share	146 Reduced 0.88%	16,392 Common Stock
Mar 17 2025	BUY Exercise of conversion of derivative security	-	406 Added 2.4%	16,538 Common Stock
Feb 18 2025	SELL Payment of exercise price or tax liability	$27,980 $33.47 p/Share	836 Reduced 4.93%	16,132 Common Stock
Feb 18 2025	BUY Exercise of conversion of derivative security	-	2,033 Added 10.84%	16,723 Common Stock
Dec 16 2024	SELL Payment of exercise price or tax liability	$4,735 $32.66 p/Share	145 Reduced 0.96%	14,935 Common Stock
Dec 16 2024	BUY Exercise of conversion of derivative security	-	406 Added 2.62%	15,080 Common Stock
Nov 15 2024	SELL Payment of exercise price or tax liability	$19,848 $27.34 p/Share	726 Reduced 4.89%	14,111 Common Stock
Nov 15 2024	BUY Grant, award, or other acquisition	$8,805 $15.64 p/Share	563 Added 3.69%	14,674 Common Stock
Nov 15 2024	BUY Exercise of conversion of derivative security	-	2,033 Added 12.21%	14,624 Common Stock
Sep 16 2024	SELL Payment of exercise price or tax liability	$6,375 $43.97 p/Share	145 Reduced 1.12%	12,804 Common Stock
Sep 16 2024	BUY Exercise of conversion of derivative security	-	406 Added 3.04%	12,949 Common Stock

Rick Carpenter

Chief Technology Officer

San Diego, CA

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