Tandem Diabetes Care, Inc.

NasdaqGM:TNDM Stock Report

Market Cap: US$1.5b

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
DateValueNameEntityRoleSharesMax Price
07 Mar 25BuyUS$190,966Jean-Claude KyrillosIndividual10,538US$18.12
21 Nov 24SellUS$1,241,400Kim BlickenstaffIndividual40,000US$31.38
15 Nov 24BuyUS$12,364Mark NovaraIndividual532US$23.24
30 May 24SellUS$258,400Dick AllenIndividual5,000US$51.68

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 TypeNumber of SharesOwnership Percentage
State or Government29,8360.0394%
Individual Insiders582,4360.769%
Hedge Funds4,466,3075.9%
Institutions70,623,67793.3%

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

Top Shareholders

Top 25 shareholders own 80.51% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
16.6%
BlackRock, Inc.
11,028,527US$254.5m-5.72%no data
11%
The Vanguard Group, Inc.
7,292,169US$168.3m-1.99%no data
6.71%
Sessa Capital IM, L.P.
4,466,307US$103.1m0%4.14%
4.3%
GW&K Investment Management, LLC
2,863,987US$66.1m34.9%0.57%
4.08%
ArrowMark Colorado Holdings, LLC
2,716,332US$62.7m-0.27%0.97%
4.04%
State Street Global Advisors, Inc.
2,687,739US$62.0m-2.8%no data
3.47%
Hood River Capital Management LLC
2,312,044US$53.4m80.9%0.83%
2.56%
Stephens Investment Management Group, LLC
1,706,915US$39.4m9.71%0.52%
2.48%
Paradice Investment Management Pty Ltd.
1,649,907US$38.1m72.5%1.79%
2.34%
Geode Capital Management, LLC
1,557,210US$35.9m1.52%no data
2.22%
Jennison Associates LLC
1,477,108US$34.1m0.73%0.02%
2.21%
Jacobs Levy Equity Management Inc
1,471,569US$34.0m-11.4%0.13%
2.18%
Fred Alger Management, LLC
1,454,239US$33.6m-25.2%0.16%
2.16%
FMR LLC
1,437,004US$33.2m32.3%no data
2.06%
Champlain Investment Partners, LLC
1,368,888US$31.6m-0.8%0.21%
1.69%
Park West Asset Management LLC
1,123,052US$25.9m-29.8%2.01%
1.52%
UBS Asset Management AG
1,013,431US$23.4m26%no data
1.39%
Brown Advisory Incorporated
924,820US$21.3m1.34%0.03%
1.17%
Driehaus Capital Management LLC
777,590US$17.9m0%0.11%
1.16%
Balyasny Asset Management L.P.
769,743US$17.8m0%0.04%
1.15%
Capital Research and Management Company
767,000US$17.7m-48.4%no data
1.1%
Baillie Gifford & Co.
732,574US$16.9m-1.81%0.01%
1.04%
Northern Trust Global Investments
689,534US$15.9m-1.14%no data
1.02%
Two Sigma Advisers, LP
679,583US$15.7m-22.9%0.03%
0.98%
Morgan Stanley, Investment Banking and Brokerage Investments
655,538US$15.1m44%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/05/19 15:04
End of Day Share Price 2025/05/19 00:00
Earnings2025/03/31
Annual Earnings2024/12/31

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.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* 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.

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 Github.

Analyst Sources

Tandem Diabetes Care, Inc. is covered by 40 analysts. 22 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Jeffrey JohnsonBaird
Travis SteedBarclays
Matthew MiksicBarclays