John F Sheridan Tandem Diabetes Care Inc (TNDM) insider trading activity

John F Sheridan is PRESIDENT & CEO of TANDEM DIABETES CARE INC. Currently has a direct ownership of 111,963 shares of TNDM, which is worth approximately $1.36 Million. The most recent transaction as insider was on Aug 15, 2025, when has been sold 5,817 shares (Common Stock) at a price of $10.82 per share, resulting in proceeds of $62,939. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 112K

16.23% 3M change

124.98% 12M change

Total Value Held $1.36 Million

John F Sheridan Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Aug 15 2025	SELL Payment of exercise price or tax liability	$62,939 $10.82 p/Share	5,817 Reduced 4.94%	111,963 Common Stock
Aug 15 2025	BUY Exercise of conversion of derivative security	-	11,453 Added 9.06%	115,001 Common Stock
Aug 11 2025	BUY Open market or private purchase	$102,300 $10.23 p/Share	10,000 Added 8.6%	106,327 Common Stock
May 15 2025	SELL Payment of exercise price or tax liability	$373,869 $22.7 p/Share	16,470 Reduced 14.6%	96,327 Common Stock
May 15 2025	BUY Exercise of conversion of derivative security	$184,196 $5.68 p/Share	32,429 Added 23.01%	108,479 Common Stock
May 15 2025	BUY Grant, award, or other acquisition	$21,254 $15.64 p/Share	1,359 Added 1.66%	80,368 Common Stock
Feb 25 2025	SELL Payment of exercise price or tax liability	$447,656 $33.34 p/Share	13,427 Reduced 14.53%	79,009 Common Stock
Feb 25 2025	BUY Exercise of conversion of derivative security	-	32,779 Added 26.91%	89,017 Common Stock
Feb 18 2025	SELL Payment of exercise price or tax liability	$106,501 $33.47 p/Share	3,182 Reduced 5.06%	59,657 Common Stock
Feb 18 2025	BUY Exercise of conversion of derivative security	-	8,502 Added 12.1%	61,754 Common Stock
Nov 15 2024	SELL Payment of exercise price or tax liability	$117,808 $27.34 p/Share	4,309 Reduced 7.4%	53,956 Common Stock
Nov 15 2024	BUY Grant, award, or other acquisition	$5,958 $15.64 p/Share	381 Added 0.7%	54,337 Common Stock
Nov 15 2024	BUY Exercise of conversion of derivative security	-	8,499 Added 13.03%	56,729 Common Stock
Aug 15 2024	SELL Payment of exercise price or tax liability	$188,864 $43.82 p/Share	4,310 Reduced 7.97%	49,766 Common Stock
Aug 15 2024	BUY Exercise of conversion of derivative security	-	8,501 Added 13.93%	52,540 Common Stock
May 28 2024	SELL Payment of exercise price or tax liability	$21,519 $51.73 p/Share	416 Reduced 0.9%	45,575 Common Stock
May 28 2024	BUY Exercise of conversion of derivative security	-	820 Added 1.75%	45,991 Common Stock
May 15 2024	SELL Payment of exercise price or tax liability	$502,595 $47.37 p/Share	10,610 Reduced 19.02%	45,171 Common Stock
May 15 2024	BUY Exercise of conversion of derivative security	-	24,915 Added 31.47%	54,245 Common Stock
May 15 2024	BUY Grant, award, or other acquisition	$15,295 $15.64 p/Share	978 Added 3.07%	30,866 Common Stock
Feb 27 2024	SELL Payment of exercise price or tax liability	$8,010 $27.34 p/Share	293 Reduced 0.97%	29,888 Common Stock
Feb 27 2024	BUY Exercise of conversion of derivative security	-	819 Added 2.64%	30,181 Common Stock
Feb 15 2024	SELL Payment of exercise price or tax liability	$30,168 $24.29 p/Share	1,242 Reduced 4.06%	29,362 Common Stock
Feb 15 2024	BUY Exercise of conversion of derivative security	-	3,029 Added 9.09%	30,279 Common Stock
Nov 27 2023	SELL Payment of exercise price or tax liability	$5,529 $19.47 p/Share	284 Reduced 1.02%	27,575 Common Stock

Also insider at

AFIB

Acutus Medical, Inc. Healthcare

Director

JFS

John F Sheridan

PRESIDENT & CEO

San Diego, CA

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