Tandem Diabetes Care Ownership

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

Recent Insider Transactions

DB:TD5A Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
21 Nov 24	Sell€1,183,427	Kim Blickenstaff	Individual	40,000	€29.91
15 Nov 24	Buy€11,720	Mark Novara	Individual	532	€22.03
30 May 24	Sell€238,296	Dick Allen	Individual	5,000	€47.66

Insider Trading Volume

Insider Buying: TD5A insiders have sold more shares than they have bought in the past 3 months.

Ownership Breakdown

What is the ownership structure of TD5A?
Owner Type	Number of Shares	Ownership Percentage
State or Government	28,566	0.0382%
Individual Insiders	523,966	0.701%
Institutions	74,209,301	99.3%

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	€386.4m	-0.11%	0.01%
11.2%	The Vanguard Group, Inc.	7,362,554	€256.1m	-0.21%	no data
5.94%	Capital Research and Management Company	3,903,528	€135.8m	-8.62%	0.01%
4.04%	State Street Global Advisors, Inc.	2,655,736	€92.4m	3.23%	no data
3.63%	ArrowMark Colorado Holdings, LLC	2,386,689	€83.0m	-4.72%	1.11%
3.01%	Fred Alger Management, LLC	1,979,119	€68.8m	-8.97%	0.31%
2.82%	Bellevue Asset Management AG	1,850,891	€64.4m	19.9%	0.82%
2.74%	GW&K Investment Management, LLC	1,799,814	€62.6m	34%	0.54%
2.71%	Jennison Associates LLC	1,782,003	€62.0m	-9.53%	0.04%
2.32%	Geode Capital Management, LLC	1,525,816	€53.1m	1.21%	no data
2.24%	Champlain Investment Partners, LLC	1,469,161	€51.1m	-9.84%	0.31%
2.18%	Millennium Management LLC	1,434,656	€49.9m	36.1%	0.04%
1.94%	Stephens Investment Management Group, LLC	1,274,482	€44.3m	12.2%	0.62%
1.63%	Park West Asset Management LLC	1,070,000	€37.2m	59.5%	3.0%
1.6%	Divisadero Street Capital Management, LP	1,052,606	€36.6m	0%	4.13%
1.56%	First Light Asset Management, LLC	1,025,307	€35.7m	44.7%	3.35%
1.53%	Chicago Capital, LLC	1,003,147	€34.9m	22.2%	0.97%
1.5%	Next Century Growth Investors LLC	982,682	€34.2m	7.47%	2.65%
1.39%	Janus Henderson Group plc	913,541	€31.8m	-37%	0.01%
1.38%	Paradice Investment Management Pty Ltd.	903,441	€31.4m	9.91%	1.6%
1.37%	Two Sigma Advisers, LP	901,883	€31.4m	-20.3%	0.07%
1.33%	Gilder Gagnon Howe & Co. LLC	872,974	€30.4m	-15.1%	0.34%
1.33%	Columbia Management Investment Advisers, LLC	870,840	€30.3m	-41.2%	0.01%
1.26%	Two Sigma Investments, LP	824,713	€28.7m	-27.4%	0.07%
1.24%	Marshall Wace LLP	813,594	€28.3m	55.2%	0.04%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/01/03 06:16
End of Day Share Price	2025/01/03 00:00
Earnings	2024/09/30
Annual Earnings	2023/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more here.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on .

Analyst Sources

Tandem Diabetes Care, Inc. is covered by 37 analysts. 21 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Jeffrey Johnson	Baird
Travis Steed	Barclays
Matt Miksic	Barclays