Tandem Diabetes Care Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGM:TNDM Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
15 Nov 24	BuyUS$12,364	Mark Novara	Individual	532	US$23.24
30 May 24	SellUS$258,400	Dick Allen	Individual	5,000	US$51.68
27 Nov 23	BuyUS$94,778	Dick Allen	Individual	5,000	US$18.96

Insider Trading Volume

Insider Buying: TNDM insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of TNDM?
Owner Type	Number of Shares	Ownership Percentage
State or Government	28,566	0.0381%
Individual Insiders	544,779	0.726%
Institutions	74,419,319	99.2%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 78.83% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
16.9%	BlackRock, Inc.	11,110,445	US$341.5m	-0.11%	no data
11.2%	The Vanguard Group, Inc.	7,362,554	US$226.3m	-0.21%	no data
5.94%	Capital Research and Management Company	3,903,528	US$120.0m	-8.62%	0.01%
4.04%	State Street Global Advisors, Inc.	2,655,736	US$81.6m	3.23%	no data
3.63%	ArrowMark Colorado Holdings, LLC	2,386,689	US$73.4m	-4.72%	0.83%
3.01%	Fred Alger Management, LLC	1,979,119	US$60.8m	-8.97%	0.24%
2.82%	Bellevue Asset Management AG	1,850,891	US$56.9m	19.9%	0.62%
2.74%	GW&K Investment Management, LLC	1,799,814	US$55.3m	34%	0.4%
2.71%	Jennison Associates LLC	1,782,003	US$54.8m	-9.53%	0.03%
2.32%	Geode Capital Management, LLC	1,525,816	US$46.9m	1.21%	no data
2.24%	Champlain Investment Partners, LLC	1,469,161	US$45.2m	-9.84%	0.24%
2.18%	Millennium Management LLC	1,434,656	US$44.1m	36.1%	0.03%
1.94%	Stephens Investment Management Group, LLC	1,274,482	US$39.2m	12.2%	0.47%
1.63%	Park West Asset Management LLC	1,070,000	US$32.9m	59.5%	2.24%
1.6%	Divisadero Street Capital Management, LP	1,052,606	US$32.4m	0%	3.29%
1.56%	First Light Asset Management, LLC	1,025,307	US$31.5m	44.7%	2.49%
1.53%	Chicago Capital, LLC	1,003,147	US$30.8m	22.2%	0.75%
1.5%	Next Century Growth Investors LLC	982,682	US$30.2m	7.47%	2.0%
1.39%	Janus Henderson Group plc	913,541	US$28.1m	-37%	0.01%
1.38%	Paradice Investment Management Pty Ltd.	903,441	US$27.8m	9.91%	1.2%
1.37%	Two Sigma Advisers, LP	901,883	US$27.7m	-20.3%	0.06%
1.33%	Gilder Gagnon Howe & Co. LLC	872,974	US$26.8m	-15.1%	0.27%
1.33%	Columbia Management Investment Advisers, LLC	870,840	US$26.8m	-41.2%	0.01%
1.26%	Two Sigma Investments, LP	824,713	US$25.4m	-27.4%	0.05%
1.24%	Marshall Wace LLP	813,594	US$25.0m	55.2%	0.03%