TNDM Insider Trading (Tandem Diabetes Care)

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 6.00%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $88,475,049.28

Tandem Diabetes Care Insider Trading History Chart

Tandem Diabetes Care Share Price & Price History

^$87.99

▼ -0.01 (-0.01%)

As of 04/9/2021 01:00 AM ET

Days: 30 | 90 | 365

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Tandem Diabetes Care Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
3/16/2021	Kim D Blickenstaff	Director	Sell	200,000	$87.27	$17,454,000.00
3/11/2021	David B Berger	EVP	Sell	8,646	$90.22	$780,042.12	13,212
12/15/2020	Kim D Blickenstaff	Director	Sell	13,598	$92.48	$1,257,543.04
12/11/2020	Kim D Blickenstaff	Director	Sell	9,150	$93.00	$850,950.00
12/9/2020	Kim D Blickenstaff	Director	Sell	15,850	$94.91	$1,504,323.50
12/1/2020	Kim D Blickenstaff	Director	Sell	25,000	$97.01	$2,425,250.00	1,500
11/12/2020	Kim D Blickenstaff	Director	Sell	16,802	$106.88	$1,795,797.76
10/13/2020	David B Berger	EVP	Sell	5,000	$119.25	$596,250.00	9,566
10/13/2020	John F Sheridan	CEO	Sell	15,000	$121.31	$1,819,650.00	18,756
10/13/2020	Leigh Vosseller	CFO	Sell	10,000	$120.87	$1,208,700.00	14,520
10/7/2020	Brian B Hansen	EVP	Sell	15,000	$117.76	$1,766,400.00	19,665
9/29/2020	Brian B Hansen	EVP	Sell	4,489	$112.75	$506,134.75	9,154
9/16/2020	Brian B Hansen	EVP	Sell	10,525	$113.00	$1,189,325.00	15,190
9/16/2020	John F Sheridan	CEO	Sell	401	$110.37	$44,258.37	13,355
9/3/2020	Brian B Hansen	EVP	Sell	39,132	$111.36	$4,357,739.52	13,811
9/2/2020	Rebecca B Robertson	Director	Sell	9,500	$114.14	$1,084,330.00	9,500
9/1/2020	Susan Morrison	EVP	Sell	20,000	$114.00	$2,280,000.00	13,778
8/28/2020	Susan Morrison	EVP	Sell	7,522	$114.00	$857,508.00	13,778
8/18/2020	Kim D Blickenstaff	Director	Sell	38,250	$103.49	$3,958,492.50
8/10/2020	Kim D Blickenstaff	Director	Sell	8,882	$103.88	$922,662.16
8/7/2020	Kim D Blickenstaff	Director	Sell	161,244	$106.23	$17,128,950.12
8/3/2020	Brian B Hansen	EVP	Sell	23,954	$105.86	$2,535,770.44	12,545
8/3/2020	John F Sheridan	CEO	Sell	33,200	$102.21	$3,393,372.00	5,423
7/31/2020	Christopher J Twomey	Director	Sell	7,500	$110.04	$825,300.00
7/31/2020	Leigh Vosseller	CFO	Sell	10,000	$110.03	$1,100,300.00	14,520
7/31/2020	Susan Morrison	EVP	Sell	50,000	$108.58	$5,429,000.00	36,256
7/6/2020	David B Berger	EVP	Sell	2,000	$101.65	$203,300.00	5,886
7/6/2020	Leigh Vosseller	CFO	Sell	10,000	$105.04	$1,050,400.00	14,520
7/2/2020	Christopher J Twomey	Director	Sell	7,500	$100.28	$752,100.00
7/2/2020	Leigh Vosseller	CFO	Sell	20,000	$97.74	$1,954,800.00	14,520
6/30/2020	Kim D Blickenstaff	Director	Sell	50,000	$95.57	$4,778,500.00
6/30/2020	Leigh Vosseller	CFO	Sell	10,000	$95.04	$950,400.00	14,520
5/7/2020	Dick Allen	Director	Sell	3,500	$89.00	$311,500.00
5/7/2020	Leigh Vosseller	CFO	Sell	10,000	$90.07	$900,700.00	13,265
5/4/2020	David B Berger	EVP	Sell	2,000	$78.33	$156,660.00	3,961
4/30/2020	Christopher J Twomey	Director	Sell	4,308	$80.00	$344,640.00
4/6/2020	David B Berger	EVP	Sell	2,000	$67.59	$135,180.00	5,311
2/26/2020	Dick Allen	Director	Sell	2,979	$78.82	$234,804.78
1/30/2020	Brian B Hansen	EVP	Sell	20,945	$77.62	$1,625,750.90	7,046
1/29/2020	Dick Allen	Director	Sell	10,371	$75.93	$787,470.03	1,671
1/29/2020	Kim D Blickenstaff	Chairman	Sell	50,000	$75.92	$3,796,000.00
1/29/2020	Leigh Vosseller	CFO	Sell	10,000	$75.93	$759,300.00	12,882
1/16/2020	David B Berger	EVP	Sell	8,000	$67.83	$542,640.00	11,311
12/16/2019	Kim D Blickenstaff	Chairman	Sell	200,000	$59.85	$11,970,000.00
11/25/2019	John F Sheridan	CEO	Sell	462	$70.00	$32,340.00	2,963
11/25/2019	Leigh Vosseller	CFO	Sell	10,000	$70.35	$703,500.00	13,265
11/18/2019	Leigh Vosseller	CFO	Sell	10,000	$65.41	$654,100.00	13,265
11/4/2019	Brian B Hansen	EVP	Sell	15,000	$62.01	$930,150.00	17,991
9/6/2019	John F Sheridan	CEO	Sell	9,538	$70.03	$667,946.14	12,039
9/3/2019	David B Berger	EVP	Sell	2,000	$72.00	$144,000.00	5,311
8/29/2019	Kim D Blickenstaff	Chairman	Sell	100,000	$70.96	$7,096,000.00
8/28/2019	Douglas A Roeder	Director	Sell	308,297	$70.32	$21,679,445.04
8/27/2019	Brian B Hansen	EVP	Sell	6,969	$70.00	$487,830.00	9,960
8/13/2019	Edward L Cahill	Director	Sell	1,417	$63.03	$89,313.51	5,399
8/12/2019	Brian B Hansen	EVP	Sell	15,000	$62.97	$944,550.00	17,991
8/5/2019	David B Berger	EVP	Sell	2,000	$62.56	$125,120.00	5,311
8/5/2019	Howard E Greene Jr	Director	Sell	10,000	$61.50	$615,000.00
8/2/2019	Brian B Hansen	EVP	Sell	5,000	$70.01	$350,050.00	7,991
8/2/2019	Douglas A Roeder	Director	Sell	9,471	$70.01	$663,064.71
7/11/2019	Brian B Hansen	EVP	Sell	13,031	$70.04	$912,691.24	16,022
7/11/2019	Douglas A Roeder	Director	Sell	13,347	$70.08	$935,357.76
7/3/2019	David B Berger	EVP	Sell	2,000	$63.60	$127,200.00	5,311
6/13/2019	Douglas A Roeder	Director	Sell	35,688	$70.07	$2,500,658.16
6/3/2019	David B Berger	EVP	Sell	2,000	$67.76	$135,520.00	5,311
5/16/2019	Leigh Vosseller	CFO	Sell	10,000	$70.45	$704,500.00	12,009
5/3/2019	David B Berger	EVP	Sell	2,000	$63.09	$126,180.00	3,765
5/3/2019	Leigh Vosseller	CFO	Sell	10,000	$65.14	$651,400.00	12,009
5/2/2019	Dick Allen	Director	Sell	17,000	$61.34	$1,042,780.00
4/3/2019	David B Berger	EVP	Sell	2,000	$62.60	$125,200.00	3,765
3/15/2019	Brian B Hansen	EVP	Sell	10,000	$72.00	$720,000.00	11,381
3/11/2019	Kim D Blickenstaff	Insider	Sell	200,000	$64.95	$12,990,000.00
3/8/2019	Dick Allen	Director	Sell	6,300	$62.73	$395,199.00
3/1/2019	Susan Morrison	CAO	Sell	60,000	$67.79	$4,067,400.00	53,745
2/28/2019	Howard E Greene Jr	Director	Sell	10,000	$65.39	$653,900.00
2/27/2019	John F Sheridan	EVP	Sell	20,000	$62.03	$1,240,600.00	18,999
1/25/2019	John F Sheridan	EVP	Sell	20,000	$45.26	$905,200.00	20,666
1/15/2019	Brian B Hansen	EVP	Sell	25,000	$41.54	$1,038,500.00	26,381
1/8/2019	David B Berger	EVP	Sell	10,000	$40.08	$400,800.00	11,765
1/2/2019	John F Sheridan	EVP	Sell	20,788	$35.76	$743,378.88
12/12/2018	Brian B Hansen	EVP	Sell	25,000	$37.75	$943,750.00	26,381
12/6/2018	David B Berger	EVP	Sell	11,493	$34.54	$396,968.22	11,765
11/7/2018	Kim D Blickenstaff	CEO	Sell	198,000	$37.01	$7,327,980.00
11/5/2018	Richard P Valencia	Director	Buy	1,300	$37.75	$49,075.00
8/3/2018	Richard P Valencia	Director	Buy	1,754	$28.50	$49,989.00	1,754

SEC Filings (Institutional Ownership Changes) for Tandem Diabetes Care (NASDAQ:TNDM)

88.60% of Tandem Diabetes Care stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Tandem Diabetes Care Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
4/7/2021	Hodges Capital Management Inc.	15,790	$1.39M	0.2%	-6.2%	0.025%
3/10/2021	Los Angeles Capital Management LLC	2,607	$0.25M	0.0%	-22.9%	0.004%
3/9/2021	Amundi Pioneer Asset Management Inc.	1,100	$0.11M	0.0%	-97.9%	0.002%
3/8/2021	Dimensional Fund Advisors LP	63,323	$6.06M	0.0%	+9.5%	0.101%
3/4/2021	Eaton Vance Management	342,526	$32.77M	0.1%	+22.8%	0.548%
3/2/2021	Norges Bank	617,583	$59.09M	0.0%	N/A	1.014%
3/1/2021	UBS Asset Management Americas Inc.	208,927	$19.99M	0.0%	+2.8%	0.343%
2/25/2021	Dimensional Fund Advisors LP	63,323	$6.06M	0.0%	+9.5%	0.104%
2/25/2021	Hsbc Holdings PLC	8,530	$0.81M	0.0%	+11.3%	0.014%
2/23/2021	WCM Investment Management LLC	72,108	$6.90M	0.0%	+0.3%	0.118%
2/23/2021	Principal Financial Group Inc.	24,105	$2.31M	0.0%	-7.1%	0.040%
2/22/2021	Retirement Group LLC	1,999	$0.20M	0.1%	N/A	0.003%
2/19/2021	JPMorgan Chase & Co.	44,631	$4.27M	0.0%	-68.0%	0.073%
2/18/2021	Strategic Wealth Partners Ltd.	5,639	$0.54M	0.2%	+187.3%	0.009%
2/18/2021	Truist Financial Corp	6,078	$0.58M	0.0%	-5.5%	0.010%
2/17/2021	Canada Pension Plan Investment Board	4,124	$0.40M	0.0%	+22.6%	0.007%
2/17/2021	Cetera Advisors LLC	6,066	$0.58M	0.0%	+57.4%	0.010%
2/16/2021	Morgan Stanley	480,957	$46.02M	0.0%	+422.5%	0.790%
2/16/2021	Paloma Partners Management Co	2,729	$0.26M	0.0%	-80.3%	0.004%
2/16/2021	Knights of Columbus Asset Advisors LLC	24,853	$2.38M	0.3%	+100.6%	0.041%
2/16/2021	Nuveen Asset Management LLC	380,291	$36.39M	0.0%	+9.7%	0.624%
2/16/2021	Brown Capital Management LLC	1,223,209	$117.04M	0.8%	+0.4%	2.008%
2/16/2021	WCM Investment Management LLC	72,108	$6.90M	0.0%	+0.3%	0.118%
2/16/2021	Pier Capital LLC	66,080	$6.32M	0.7%	+3.6%	0.108%
2/16/2021	Price T Rowe Associates Inc. MD	1,371,380	$131.21M	0.0%	+3.2%	2.252%
2/16/2021	Amundi Pioneer Asset Management Inc.	1,100	$0.11M	0.0%	-97.9%	0.002%
2/16/2021	Virginia Retirement Systems ET AL	8,700	$0.83M	0.0%	-5.4%	0.014%
2/16/2021	Engineers Gate Manager LP	31,650	$3.03M	0.1%	+98.0%	0.052%
2/16/2021	Apis Capital Advisors LLC	17,000	$1.63M	1.6%	N/A	0.028%
2/16/2021	Capital International Ltd.	37,510	$3.59M	0.2%	+128.5%	0.062%
2/16/2021	Charles Schwab Investment Management Inc.	440,843	$42.18M	0.0%	+3.6%	0.724%
2/13/2021	Essex Investment Management Co. LLC	29,251	$2.80M	0.3%	-15.7%	0.048%
2/12/2021	Stifel Financial Corp	24,711	$2.37M	0.0%	-7.1%	0.041%
2/12/2021	Federated Hermes Inc.	1,273,925	$121.89M	0.2%	-2.4%	2.092%
2/12/2021	Raymond James Financial Services Advisors Inc.	6,732	$0.64M	0.0%	-33.6%	0.011%
2/12/2021	LPL Financial LLC	21,834	$2.09M	0.0%	-3.5%	0.036%
2/12/2021	Amalgamated Bank	11,721	$1.12M	0.0%	+2.0%	0.019%
2/12/2021	Public Employees Retirement System of Ohio	31,082	$2.97M	0.0%	+27.3%	0.051%
2/12/2021	Montag A & Associates Inc.	325	$31K	0.0%	N/A	0.001%
2/12/2021	Credit Suisse AG	1,405,725	$134.50M	0.1%	+88.2%	2.308%
2/12/2021	Cibc World Markets Corp	54,200	$5.19M	0.0%	N/A	0.089%
2/12/2021	Eaton Vance Management	342,526	$32.77M	0.1%	+22.8%	0.562%
2/12/2021	Vontobel Holding Ltd.	3,930	$0.40M	0.0%	N/A	0.006%
2/12/2021	Kennedy Capital Management Inc.	59,858	$5.73M	0.1%	+29.1%	0.098%
2/12/2021	Next Century Growth Investors LLC	102,582	$9.82M	0.8%	-14.8%	0.168%
2/12/2021	Jackson Square Partners LLC	3,186,987	$304.93M	1.2%	N/A	5.233%
2/12/2021	M&T Bank Corp	5,292	$0.51M	0.0%	-20.6%	0.009%
2/12/2021	Mercer Global Advisors Inc. ADV	11,197	$1.07M	0.0%	+4.1%	0.018%
2/11/2021	Fuller & Thaler Asset Management Inc.	85,780	$8.21M	0.1%	+2.2%	0.141%
2/11/2021	Trexquant Investment LP	3,090	$0.30M	0.0%	-82.8%	0.005%
2/11/2021	Northern Trust Corp	294,842	$28.21M	0.0%	+0.1%	0.484%
2/11/2021	Columbia Asset Management	6,180	$0.59M	0.1%	-16.3%	0.010%
2/11/2021	First Mercantile Trust Co.	3,855	$0.37M	0.0%	-10.4%	0.006%
2/11/2021	Barclays PLC	95,996	$9.19M	0.0%	+11.9%	0.158%
2/11/2021	Teacher Retirement System of Texas	5,211	$0.50M	0.0%	+61.2%	0.009%
2/11/2021	Westpac Banking Corp	69,369	$6.64M	0.1%	-6.2%	0.114%
2/11/2021	Oppenheimer & Co. Inc.	5,439	$0.52M	0.0%	-37.5%	0.009%
2/10/2021	Rhumbline Advisers	65,935	$6.31M	0.0%	-1.0%	0.108%
2/10/2021	Renaissance Technologies LLC	316,427	$30.28M	0.0%	-28.6%	0.520%
2/10/2021	Stephens Investment Management Group LLC	586,506	$56.12M	0.8%	-2.2%	0.963%
2/10/2021	Nicholas Company Inc.	91,143	$8.72M	0.2%	+62.0%	0.150%
2/10/2021	Cookson Peirce & Co. Inc.	3,150	$0.30M	0.0%	N/A	0.005%
2/10/2021	Baillie Gifford & Co.	295,445	$28.27M	0.0%	+0.1%	0.485%
2/10/2021	Aviva PLC	11,625	$1.11M	0.0%	-44.8%	0.019%
2/9/2021	Greenwood Capital Associates LLC	6,109	$0.59M	0.1%	+11.8%	0.010%
2/9/2021	Duality Advisers LP	9,258	$0.89M	0.1%	N/A	0.015%
2/9/2021	Seven Eight Capital LP	3,114	$0.30M	0.1%	-71.9%	0.005%
2/9/2021	Bank of New York Mellon Corp	224,349	$21.47M	0.0%	-0.3%	0.368%
2/9/2021	Arkadios Wealth Advisors	1,131	$0.11M	0.0%	N/A	0.002%
2/9/2021	Illinois Municipal Retirement Fund	10,851	$1.04M	0.0%	+86.8%	0.018%
2/9/2021	Sigma Planning Corp	3,986	$0.38M	0.0%	+6.5%	0.007%
2/9/2021	Lord Abbett & CO. LLC	138,971	$13.30M	0.0%	-67.4%	0.228%
2/9/2021	Chartwell Investment Partners LLC	17,514	$1.68M	0.1%	-18.5%	0.029%
2/9/2021	CI Investments Inc.	5,352	$0.51M	0.0%	+90.7%	0.009%
2/9/2021	Landscape Capital Management L.L.C.	12,692	$1.21M	0.2%	N/A	0.021%
2/8/2021	Royce & Associates LP	67,086	$6.42M	0.1%	+90.1%	0.110%
2/8/2021	Vident Investment Advisory LLC	5,000	$0.48M	0.0%	N/A	0.008%
2/8/2021	Beacon Investment Advisory Services Inc.	9,404	$0.90M	0.0%	+49.0%	0.015%
2/8/2021	State Board of Administration of Florida Retirement System	76,088	$7.28M	0.0%	+8.0%	0.125%
2/8/2021	New York State Common Retirement Fund	263,485	$25.21M	0.0%	-6.5%	0.433%
2/8/2021	Resources Investment Advisors LLC.	5,413	$0.52M	0.0%	-35.0%	0.009%
2/8/2021	Sei Investments Co.	552,088	$52.83M	0.1%	+1,022.5%	0.906%
2/8/2021	Delphi Management Partners VIII L.L.C.	1,000,000	$95.68M	62.9%	N/A	1.642%
2/8/2021	FIL Ltd	139,573	$13.36M	0.0%	+36.0%	0.223%
2/8/2021	Russell Investments Group Ltd.	87,373	$8.35M	0.0%	-45.5%	0.143%
2/6/2021	Jennison Associates LLC	546,576	$52.30M	0.0%	-3.2%	0.897%
2/5/2021	Banque Cantonale Vaudoise	2,929	$0.28M	0.0%	+5.9%	0.005%
2/5/2021	BlackRock Inc.	3,479,490	$332.92M	0.0%	+1.6%	5.713%
2/5/2021	Aperio Group LLC	2,771	$0.27M	0.0%	-19.5%	0.005%
2/5/2021	Swiss National Bank	130,800	$12.52M	0.0%	+1.1%	0.215%
2/5/2021	Redwood Investments LLC	118,397	$11.33M	1.0%	-11.6%	0.194%
2/5/2021	Sumitomo Mitsui Trust Holdings Inc.	3,076	$0.29M	0.0%	-78.2%	0.005%
2/5/2021	SG Americas Securities LLC	51,981	$4.97M	0.0%	+50.6%	0.085%
2/5/2021	US Bancorp DE	795	$76K	0.0%	+16.4%	0.001%
2/4/2021	Foundry Partners LLC	19,569	$1.87M	0.1%	-36.0%	0.032%
2/4/2021	Cambridge Investment Research Advisors Inc.	7,560	$0.72M	0.0%	+128.3%	0.012%
2/4/2021	State of Wisconsin Investment Board	64,466	$6.17M	0.0%	-10.1%	0.106%
2/3/2021	State of New Jersey Common Pension Fund D	37,126	$3.55M	0.0%	-4.7%	0.061%
2/2/2021	Treasurer of the State of North Carolina	22,250	$2.13M	0.0%	+2.3%	0.037%
2/2/2021	California Public Employees Retirement System	133,719	$12.79M	0.0%	+7.4%	0.220%

Data available starting January 2016

Tandem Diabetes Care, Inc., a medical device company, designs, develops, and commercializes various products for people with insulin-dependent diabetes in the United States. The company's flagship product is the t:slim X2 insulin delivery system, a pump platform that comprises t:slim X2 pump, its 300-unit disposable insulin cartridge, and an infusion set. It also provides t:slim X2 insulin with Basal-IQ and control IQ technology; t:slim X2 with G5 Integration; and Tandem Device Updater, a tool that allows users to update their pump's software. In addition, the company offers t:connect, a web-based data management application, which provides a visual way to display diabetes therapy management data from the pump, continuous glucose monitoring, and supported blood glucose meters for users, their caregivers, and their healthcare providers; and Sugarmate, a mobile app for people with diabetes who use insulin. Its products in development include t:sport insulin delivery system; and connected (mobile) health offerings. Tandem Diabetes Care, Inc. has a development and commercialization agreement with Dexcom, Inc. The company was formerly known as Phluid Inc. and changed its name to Tandem Diabetes Care, Inc. in January 2008. Tandem Diabetes Care, Inc. was incorporated in 2006 and is headquartered in San Diego, California.

Today's Range

Now: $87.99

$86.77

$88.23

50 Day Range

MA: $89.15

$81.28

$99.68

52 Week Range

Now: $87.99

$64.52

$123.74

Volume

676,442 shs

Average Volume

792,313 shs

Market Capitalization

$5.50 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.31

Who are the company insiders with the largest holdings of Tandem Diabetes Care?

Tandem Diabetes Care's top insider investors include:

Susan Morrison (EVP)
Brian B Hansen (EVP)
John F Sheridan (CEO)
Leigh Vosseller (CFO)
David B Berger (EVP)
Rebecca B Robertson (Director)
Edward L Cahill (Director)
Dick Allen (Director)
Kim D Blickenstaff (Director)
Christopher J Twomey (Director)
Douglas A Roeder (Director)
Howard E Greene Jr (Director)
Kim D Blickenstaff (Chairman)

Who are the major institutional investors of Tandem Diabetes Care?

Tandem Diabetes Care's top institutional investors include:

Hodges Capital Management Inc. — 0.03%

Which institutional investors are selling Tandem Diabetes Care stock?

In the last quarter, TNDM stock was sold by these institutional investors:

Hodges Capital Management Inc.

In the last year, company insiders that have sold Tandem Diabetes Care company stock include:

Susan Morrison (EVP)
Brian B Hansen (EVP)
John F Sheridan (CEO)
Leigh Vosseller (CFO)
David B Berger (EVP)
Rebecca B Robertson (Director)
Edward L Cahill (Director)
Dick Allen (Director)
Kim D Blickenstaff (Director)