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TNDM Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 2.20%

Insider Buying (Last 12 Months): $635,045.95

Insider Selling (Last 12 Months): $0.00

Tandem Diabetes Care Insider Trading History Chart

Tandem Diabetes Care Share Price & Price History

^$42.15

▼ -1.85 (-4.20%)

As of 05/8/2024 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
11/27/2023	Dick Allen	Director	Buy	5,000	$18.96	$94,800.00	19,962
11/8/2023	Leigh Vosseller	CFO	Buy	6,200	$15.39	$95,418.00	11,860
11/8/2023	Shannon Marie Hansen	Insider	Buy	1,935	$15.44	$29,876.40	1,935
9/15/2023	Kathleen McGroddy-Goetz	Director	Buy	1,000	$21.45	$21,450.00	9,032
5/18/2023	Dick Allen	Director	Buy	10,000	$29.47	$294,700.00	12,205
5/12/2023	Leigh Vosseller	CFO	Buy	3,015	$32.77	$98,801.55	5,660
3/3/2023	David B. Berger	COO	Sell	10,000	$41.19	$411,900.00	3,365
12/16/2022	David B. Berger	COO	Sell	10,000	$40.25	$402,500.00	3,029
6/8/2022	David B. Berger	COO	Sell	10,097	$65.02	$656,506.94	2,457
5/17/2022	Kim D. Blickenstaff	Director	Sell	10,762	$92.91	$999,897.42	205,190
5/9/2022	John F. Sheridan	CEO	Buy	2,500	$69.90	$174,750.00	10,058
5/9/2022	Leigh Vosseller	CFO	Buy	500	$70.00	$35,000.00	9,118
5/6/2022	Leigh Vosseller	CFO	Buy	2,000	$75.76	$151,520.00	8,618
5/5/2022	Christopher J Twomey	Director	Sell	248	$111.73	$27,709.04	5,112
5/2/2022	Rebecca B. Robertson	Director	Sell	1,500	$96.73	$145,095.00
3/16/2022	David B. Berger	COO	Sell	5,000	$108.37	$541,850.00
3/14/2022	Kathleen McGroddy-Goetz	Director	Sell	405	$106.00	$42,930.00
3/1/2022	David B. Berger	COO	Sell	1,000	$112.68	$112,680.00
2/1/2022	David B. Berger	EVP	Sell	1,000	$117.91	$117,910.00
2/1/2022	Rebecca B. Robertson	Director	Sell	1,500	$117.97	$176,955.00
1/3/2022	David B. Berger	EVP	Sell	1,000	$149.16	$149,160.00
12/27/2021	Elizabeth Anne Gasser	EVP	Sell	1,084	$151.36	$164,074.24
12/27/2021	James Leal	SVP	Sell	1,906	$151.45	$288,663.70
12/15/2021	David B. Berger	EVP	Sell	12,000	$144.25	$1,731,000.00
12/7/2021	Elizabeth Anne Gasser	EVP	Sell	1,083	$140.00	$151,620.00
12/1/2021	David B. Berger	EVP	Sell	1,000	$128.44	$128,440.00
11/29/2021	James Leal	SVP	Sell	1,905	$130.96	$249,478.80
11/16/2021	Susan Morrison	EVP	Sell	34,624	$142.21	$4,923,879.04
11/3/2021	Leigh Vosseller	CFO	Sell	10,000	$140.05	$1,400,500.00
11/3/2021	Susan Morrison	EVP	Sell	5,376	$142.00	$763,392.00
11/1/2021	David B. Berger	EVP	Sell	1,000	$135.70	$135,700.00
11/1/2021	Rebecca B. Robertson	Director	Sell	1,500	$135.77	$203,655.00
10/27/2021	James Leal	SVP	Sell	1,904	$130.34	$248,167.36
10/14/2021	Leigh Vosseller	CFO	Sell	10,000	$135.09	$1,350,900.00
10/13/2021	Susan Morrison	EVP	Sell	10,048	$132.01	$1,326,436.48
10/12/2021	Leigh Vosseller	CFO	Sell	10,000	$130.00	$1,300,000.00
10/1/2021	David B. Berger	EVP	Sell	1,000	$118.00	$118,000.00
9/27/2021	James Leal	SVP	Sell	1,905	$121.72	$231,876.60
9/15/2021	David B. Berger	EVP	Sell	9,000	$121.99	$1,097,910.00
9/15/2021	Leigh Vosseller	CFO	Sell	3,500	$125.00	$437,500.00
9/13/2021	Brian B. Hansen	EVP	Sell	32,180	$119.00	$3,829,420.00	8,513
9/13/2021	Leigh Vosseller	CFO	Sell	10,000	$120.75	$1,207,500.00	16,145
9/7/2021	Christopher J Twomey	Director	Sell	304	$123.00	$37,392.00
9/7/2021	James Leal	SVP	Sell	3,574	$123.00	$439,602.00
9/2/2021	Christopher J. Twomey	Director	Sell	8,696	$115.00	$1,000,040.00	1,892
8/27/2021	James Leal	SVP	Sell	1,667	$110.64	$184,436.88
8/12/2021	Kim D. Blickenstaff	Director	Sell	13,990	$105.50	$1,475,945.00	1,892
8/10/2021	Kim D. Blickenstaff	Director	Sell	3,210	$107.21	$344,144.10	1,892
8/2/2021	Rebecca B. Robertson	Director	Sell	1,500	$107.51	$161,265.00
7/29/2021	Christopher J. Twomey	Director	Sell	8,000	$105.00	$840,000.00	1,892
7/27/2021	James Leal	SVP	Sell	1,666	$102.25	$170,348.50	5,262
6/28/2021	James Leal	SVP	Sell	7,135	$100.00	$713,500.00	10,263
6/9/2021	Rebecca B. Robertson	Director	Sell	500	$90.00	$45,000.00	2,392
5/28/2021	David B. Berger	EVP	Sell	3,619	$86.47	$312,934.93	6,488
5/19/2021	Christopher J Twomey	Director	Sell	269	$89.03	$23,949.07
5/18/2021	David B. Berger	EVP	Sell	201	$89.14	$17,917.14	4,862

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

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
5/9/2024	State Board of Administration of Florida Retirement System	68,179	$2.41M	0.0%	+4.1%	0.106%
5/8/2024	US Bancorp DE	36,017	$1.28M	0.0%	-1.0%	0.056%
5/8/2024	Russell Investments Group Ltd.	243,663	$8.63M	0.0%	-1.5%	0.377%
5/8/2024	Headlands Technologies LLC	981	$35K	0.0%	N/A	0.002%
5/8/2024	Paradice Investment Management LLC	821,993	$29.11M	5.0%	-24.0%	1.273%
5/7/2024	Sei Investments Co.	17,349	$0.61M	0.0%	+125.8%	0.027%
5/7/2024	Susquehanna Fundamental Investments LLC	37,705	$1.34M	0.1%	N/A	0.058%
5/7/2024	Susquehanna Portfolio Strategies LLC	28,942	$1.03M	0.0%	-15.5%	0.045%
5/7/2024	Lisanti Capital Growth LLC	174,830	$6.19M	1.5%	+65.1%	0.271%
5/7/2024	Oppenheimer Asset Management Inc.	40,380	$1.43M	0.0%	+49.0%	0.063%
5/7/2024	Oppenheimer & Co. Inc.	8,399	$0.30M	0.0%	-14.3%	0.013%
5/7/2024	SG Americas Securities LLC	147,612	$5.23M	0.0%	N/A	0.229%
5/6/2024	Quantbot Technologies LP	20,047	$0.71M	0.0%	N/A	0.031%
5/6/2024	Duality Advisers LP	26,542	$0.94M	0.1%	N/A	0.041%
5/6/2024	Texas Permanent School Fund Corp	56,910	$2.02M	0.0%	+1.6%	0.088%
5/3/2024	RiverPark Advisors LLC	10,153	$0.36M	0.3%	+1,008.4%	0.016%
5/2/2024	Jennison Associates LLC	2,556,124	$90.51M	0.1%	+98.1%	3.959%
5/1/2024	Capstone Investment Advisors LLC	13,585	$0.48M	0.0%	+63.7%	0.021%
5/1/2024	Janney Montgomery Scott LLC	34,506	$1.22M	0.0%	+4.5%	0.053%
5/1/2024	BNP Paribas Financial Markets	145,812	$5.16M	0.0%	+1,481.5%	0.226%
5/1/2024	Mirae Asset Global Investments Co. Ltd.	139,485	$5.42M	0.0%	+6.6%	0.216%
5/1/2024	Baillie Gifford & Co.	259,697	$9.20M	0.0%	-1.1%	0.402%
4/30/2024	MN Wealth Advisors LLC	14,283	$0.51M	0.3%	-43.2%	0.022%
4/30/2024	Allspring Global Investments Holdings LLC	6,635	$0.24M	0.0%	+1,567.1%	0.010%
4/29/2024	Principal Financial Group Inc.	356,393	$12.62M	0.0%	+3.5%	0.552%
4/26/2024	Yousif Capital Management LLC	29,675	$1.05M	0.0%	-8.7%	0.046%
4/24/2024	Newbridge Financial Services Group Inc.	1,105	$39K	0.0%	-75.3%	0.002%
4/24/2024	Assenagon Asset Management S.A.	226,427	$8.02M	0.0%	N/A	0.351%
4/23/2024	Rice Hall James & Associates LLC	94,140	$3.33M	0.2%	-9.9%	0.146%
4/23/2024	Louisiana State Employees Retirement System	32,300	$1.14M	0.0%	-0.9%	0.050%
4/23/2024	New Mexico Educational Retirement Board	13,000	$0.46M	0.0%	N/A	0.020%
4/23/2024	Arcadia Investment Management Corp MI	1,851	$66K	0.0%	+141.6%	0.003%
4/18/2024	Allspring Global Investments Holdings LLC	6,635	$0.24M	0.0%	+1,567.1%	0.010%
4/18/2024	Oak Thistle LLC	8,557	$0.30M	0.3%	-53.1%	0.013%
4/18/2024	Diversified Trust Co	13,173	$0.47M	0.0%	+24.6%	0.020%
4/18/2024	LVW Advisors LLC	6,835	$0.24M	0.0%	N/A	0.011%
4/16/2024	MCF Advisors LLC	1,006	$36K	0.0%	+79.3%	0.002%
4/16/2024	180 Wealth Advisors LLC	7,654	$0.27M	0.0%	-4.8%	0.012%
4/10/2024	Park Avenue Securities LLC	8,650	$0.31M	0.0%	+20.3%	0.013%
4/5/2024	GAMMA Investing LLC	3,845	$0.14M	0.0%	+55.7%	0.006%
3/28/2024	Newbridge Financial Services Group Inc.	4,470	$0.13M	0.1%	-25.8%	0.007%
3/22/2024	PNC Financial Services Group Inc.	5,788	$0.17M	0.0%	+79.4%	0.009%
3/18/2024	Kingdon Capital Management L.L.C.	194,200	$5.74M	0.7%	N/A	0.296%
3/11/2024	Vanguard Group Inc.	7,021,906	$207.71M	0.0%	+0.3%	10.699%
2/15/2024	Brown Capital Management LLC	734,627	$21.73M	0.3%	-53.0%	1.127%
2/15/2024	Comerica Bank	34,364	$1.02M	0.0%	+15.1%	0.053%
2/14/2024	First Light Asset Management LLC	360,243	$10.66M	0.9%	-75.0%	0.552%
2/14/2024	Bellevue Group AG	1,992,317	$58.93M	0.9%	-7.0%	3.055%
2/14/2024	Invenomic Capital Management LP	241,006	$7.13M	0.3%	-11.5%	0.370%
2/14/2024	Eminence Capital LP	5,170,451	$152.94M	2.3%	-5.8%	7.929%
2/14/2024	CenterBook Partners LP	6,929	$0.21M	0.0%	N/A	0.011%
2/13/2024	Capital World Investors	6,384,111	$188.84M	0.0%	-2.5%	9.790%
2/13/2024	Capital International Sarl	56,242	$1.66M	0.1%	+5.8%	0.086%
2/13/2024	Capital International Ltd. CA	55,912	$1.65M	0.1%	-1.9%	0.086%
2/13/2024	Capital International Investors	1,083,561	$32.05M	0.0%	-39.6%	1.662%
2/13/2024	Stephens Investment Management Group LLC	962,272	$28.46M	0.4%	-2.7%	1.476%
2/13/2024	KBC Group NV	239,944	$7.10M	0.0%	+256.1%	0.368%
2/12/2024	Alberta Investment Management Corp	262,574	$7.77M	0.1%	+8.7%	0.403%
2/12/2024	Capstone Investment Advisors LLC	8,297	$0.25M	0.0%	N/A	0.013%
2/9/2024	Advisory Services Network LLC	6,928	$0.21M	0.0%	N/A	0.011%
2/9/2024	Orion Portfolio Solutions LLC	36,767	$1.04M	0.0%	N/A	0.056%
2/9/2024	Commerce Bank	15,562	$0.46M	0.0%	N/A	0.024%
2/9/2024	US Bancorp DE	36,373	$1.08M	0.0%	+222.0%	0.056%
2/9/2024	GW&K Investment Management LLC	1,226,758	$36.29M	0.3%	N/A	1.881%
2/9/2024	Trexquant Investment LP	161,954	$4.79M	0.1%	+159.9%	0.248%
2/8/2024	Paradice Investment Management LLC	1,081,886	$32M	4.0%	-28.8%	1.659%
2/8/2024	Quadrant Capital Group LLC	3,976	$0.12M	0.0%	+387.9%	0.006%
2/8/2024	Janney Montgomery Scott LLC	33,013	$0.98M	0.0%	+55.5%	0.051%
2/7/2024	Principal Financial Group Inc.	344,349	$10.19M	0.0%	-3.0%	0.528%
2/7/2024	Jump Financial LLC	39,100	$1.16M	0.0%	-80.9%	0.060%
2/6/2024	Charles Schwab Investment Management Inc.	396,741	$11.74M	0.0%	+8.1%	0.608%
2/6/2024	Lisanti Capital Growth LLC	105,895	$3.13M	0.7%	N/A	0.162%
2/6/2024	M&T Bank Corp	49,649	$1.47M	0.0%	+118.7%	0.076%
2/6/2024	Amalgamated Bank	27,767	$0.82M	0.0%	-4.9%	0.043%
2/6/2024	Natixis Advisors L.P.	34,681	$1.03M	0.0%	N/A	0.053%
2/6/2024	Swiss National Bank	128,200	$3.79M	0.0%	-9.7%	0.197%
2/5/2024	Victory Capital Management Inc.	13,484	$0.40M	0.0%	-86.3%	0.021%
2/5/2024	Van ECK Associates Corp	5,900	$0.18M	0.0%	+8.6%	0.009%
2/5/2024	Russell Investments Group Ltd.	247,325	$7.32M	0.0%	+79.5%	0.379%
2/2/2024	Truist Financial Corp	87,484	$2.59M	0.0%	N/A	0.134%
2/1/2024	GAMMA Investing LLC	2,470	$73K	0.0%	N/A	0.004%
2/1/2024	New York State Common Retirement Fund	315,502	$9.33M	0.0%	-0.2%	0.484%
2/1/2024	Jennison Associates LLC	1,290,590	$38.18M	0.0%	+14.9%	1.979%
2/1/2024	Handelsbanken Fonder AB	14,800	$0.44M	0.0%	+38.3%	0.023%
2/1/2024	Signaturefd LLC	1,691	$50K	0.0%	+871.8%	0.003%
1/30/2024	Zurcher Kantonalbank Zurich Cantonalbank	14,909	$0.44M	0.0%	+10.4%	0.023%
1/30/2024	Everence Capital Management Inc.	9,020	$0.27M	0.0%	N/A	0.014%
1/29/2024	Lecap Asset Management Ltd.	17,756	$0.53M	0.2%	N/A	0.027%
1/29/2024	Louisiana State Employees Retirement System	32,600	$0.96M	0.0%	N/A	0.050%
1/25/2024	Nisa Investment Advisors LLC	4,450	$0.13M	0.0%	-26.4%	0.007%
1/25/2024	180 Wealth Advisors LLC	8,037	$0.23M	0.0%	N/A	0.012%
1/24/2024	Mirae Asset Global Investments Co. Ltd.	130,858	$3.90M	0.0%	-15.2%	0.201%
1/24/2024	International Assets Investment Management LLC	4,881	$0.14M	0.0%	+2,858.2%	0.007%
1/22/2024	Oak Thistle LLC	18,251	$0.54M	0.2%	N/A	0.028%
1/22/2024	JB Capital LLC	24,063	$0.71M	0.1%	+48.1%	0.037%
1/22/2024	Chicago Capital LLC	476,937	$14.11M	0.5%	-47.3%	0.731%
1/19/2024	State of Alaska Department of Revenue	40,008	$1.18M	0.0%	-1.3%	0.061%
1/16/2024	Raymond James Financial Services Advisors Inc.	15,845	$0.47M	0.0%	-11.0%	0.024%
1/16/2024	Raymond James & Associates	91,985	$2.72M	0.0%	+128.5%	0.141%
1/16/2024	Legato Capital Management LLC	10,810	$0.32M	0.0%	N/A	0.017%

Data available starting January 2016

Tandem Diabetes Care, Inc., a medical device company, designs, develops, and commercializes technology solutions for people living with diabetes in the United States and internationally. The company's flagship product is the t:slim X2 insulin delivery system, a pump platform for managing insulin delivery and display continuous glucose monitoring sensor information directly on the pump home screen; and Tandem Mobi insulin pump, an automated insulin delivery system. It also sells single-use products, including cartridges for storing and delivering insulin, and infusion sets that connect the insulin pump to the user's body. In addition, the company offers Tandem Device Updater used to update the pump software from a personal computer; Tandem Source, a web-based data management platform, which provides a visual way to display diabetes therapy management data from the pumps, integrated CGMs, and supported blood glucose meters; and Sugarmate, a mobile app used to help people visualize diabetes therapy data. 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: $42.15

$41.80

$44.11

50 Day Range

MA: $33.22

$26.63

$44.72

52 Week Range

Now: $42.15

$13.82

$47.00

Volume

1,771,921 shs

Average Volume

1,767,383 shs

Market Capitalization

$2.72 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.1

Who are the company insiders with the largest holdings of Tandem Diabetes Care?: Tandem Diabetes Care's top insider investors include:
Kim D Blickenstaff (Director)
Dick Allen (Director)
Leigh Vosseller (CFO)
John F Sheridan (CEO)
Kathleen Mcgroddy-Goetz (Director)
David B Berger (COO)
Shannon Marie Hansen (Insider)
Learn More about top insider investors at Tandem Diabetes Care.
Who are the major institutional investors of Tandem Diabetes Care?: Tandem Diabetes Care's top institutional investors include:
Jennison Associates LLC — 3.96%
Paradice Investment Management LLC — 1.27%
Principal Financial Group Inc. — 0.55%
Baillie Gifford & Co. — 0.40%
Russell Investments Group Ltd. — 0.38%
Assenagon Asset Management S.A. — 0.35%
Learn More about top institutional investors of Tandem Diabetes Care stock.
Which institutional investors are selling Tandem Diabetes Care stock?: In the last quarter, TNDM stock was sold by these institutional investors:
Paradice Investment Management LLC
MN Wealth Advisors LLC
Rice Hall James & Associates LLC
Oak Thistle LLC
Susquehanna Portfolio Strategies LLC
Russell Investments Group Ltd.
Newbridge Financial Services Group Inc.
Baillie Gifford & Co.
Which institutional investors are buying Tandem Diabetes Care stock?: In the last quarter, TNDM stock was purchased by institutional investors including:
Jennison Associates LLC
Assenagon Asset Management S.A.
SG Americas Securities LLC
BNP Paribas Financial Markets
Lisanti Capital Growth LLC
Susquehanna Fundamental Investments LLC
Duality Advisers LP
Quantbot Technologies LP
Within the last year, these company insiders have bought Tandem Diabetes Care stock:
Kim D Blickenstaff (Director)
Dick Allen (Director)
Leigh Vosseller (CFO)
John F Sheridan (CEO)
Kathleen Mcgroddy-Goetz (Director)
Learn More investors buying Tandem Diabetes Care stock.

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