Sheridan John F

President &CEO | EVP, Chief Operating Officer | EVP &Chief Operating Officer

1 company

Average

Trades Analyzed

12M Win Rate

66.7%

Avg 3M Return

-0.3%

Avg 12M Return

+13.8%

Sheridan John F is a President &CEO at TANDEM DIABETES CARE INC. Recent SEC Form 4 filings include 2 buys and 18 sells.

Estimated insider holdings value: $1.9M based on current market prices.

Holdings by Company

TNDMFeb 17, 2026

Current Shares121.1K

Value$1.91M

Net Activity-192,414

Bought: 12.5KSold: 204.9K

Showing 10 filings

Date	Ticker	Role	Type	Shares	Price	Value	Chg%	3M	12M
Aug 11, 2025	TNDM Tandem Diabetes Care Inc	President &CEO	Buy	10,000	$10.23	$102,318.00	+10.4%	+61.8%	-
May 9, 2022	TNDM Tandem Diabetes Care Inc	President &CEO	Buy	2,500	$69.90	$174,750.00	+33.1%	-13.5%	-52.9%
Aug 9, 2021	TNDM Tandem Diabetes Care Inc	President &CEO	Sale+OE	14,926	$108.04	$1,612,575.76	-33.6%	+26.0%	-50.0%
Oct 13, 2020	TNDM Tandem Diabetes Care Inc	President &CEO	Sale+OE	15,000	$121.31	$1,819,657.82	-39.4%	-	-
Sep 16, 2020	TNDM Tandem Diabetes Care Inc	President &CEO	Sale+OE	10,000	$110.02	$1,100,180.05	-57.1%	-	-
Aug 3, 2020	TNDM Tandem Diabetes Care Inc	President &CEO	Sale+OE	33,200	$102.21	$3,393,231.23	-81.3%	-	-
Feb 21, 2020	TNDM Tandem Diabetes Care Inc	President &CEO	Sale+OE	30,000	$87.86	$2,635,886.87	-58.0%	-	-
Nov 25, 2019	TNDM Tandem Diabetes Care Inc	President &CEO	Sale+OE	462	$70.00	$32,340.00	-15.6%	-	-
Sep 6, 2019	TNDM Tandem Diabetes Care Inc	President &CEO	Sale+OE	9,538	$70.03	$667,946.14	-79.2%	-	-
Feb 27, 2019	TNDM Tandem Diabetes Care Inc	EVP, Chief Operating Officer	Sale+OE	20,000	$62.03	$1,240,556.00	-79.6%	-	-