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NASDAQ: TNDM
Tandem Diabetes Care Inc Stock Ownership - Who owns Tandem Diabetes Care?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Tandem Diabetes Care Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
John F. SheridanPRESIDENT CEO2025-08-1110,000$10.23
$102.32kBuy
Leigh VossellerEVP CHIEF FINANCIAL OFFICER2025-08-0813,720$10.89
$149.40kBuy
Jeanclaude KyrillosEVP Chief Operating Officer2025-07-155,205$15.20
$79.12kSell
Rick CarpenterChief Technology Officer2025-06-16207$20.76
$4.30kSell
Mark David NovaraEVP CHIEF COMMERCIAL OFFICER2025-06-163,846$20.76
$79.84kSell
Dick AllenDirector2025-06-021,000$19.88
$19.88kSell
Peyton R. HowellDirector2025-05-224,387$20.64
$90.55kBuy
Christopher J. TwomeyDirector2025-05-224,387$20.64
$90.55kBuy
Rajwant SodhiDirector2025-05-224,387$20.64
$90.55kBuy
Dick AllenDirector2025-05-224,387$20.64
$90.55kBuy

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Net Insider Buy/Sell (L12M) Ownership

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TNDM Shareholders

What type of owners hold Tandem Diabetes Care Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc16.09%10,871,558$121.00MInstitution
Vanguard Group Inc10.91%7,369,830$82.03MInstitution
Sessa Capital IM LP7.40%5,000,000$55.65MInstitution
Douglas A. Roeder5.46%3,688,625$41.05MInsider
Delphi Management Partners VIII LLC5.43%3,668,019$40.83MInsider
Nicole Vitullo4.80%3,243,448$36.10MInsider
Brian H. Dovey4.80%3,243,448$36.10MInsider
Brian K. Halak4.80%3,243,448$36.10MInsider
Kathleen K. Schoemaker4.80%3,243,448$36.10MInsider
Jesse I. Treu4.80%3,243,448$36.10MInsider

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TNDM vs Medical Device Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
TNDM57.84%42.16%Net SellingNet Buying
BBNX16.52%9.94%Net BuyingNet Selling
AXGN34.66%59.88%Net SellingNet Selling
SIBN43.45%56.55%Net SellingNet Selling
BVS26.22%73.78%Net Buying
View Top Medical Device Stocks

Tandem Diabetes Care Stock Ownership FAQ

Who owns Tandem Diabetes Care?

Tandem Diabetes Care (NASDAQ: TNDM) is owned by 76.00% institutional shareholders, 55.39% Tandem Diabetes Care insiders, and 0.00% retail investors. Douglas A. Roeder is the largest individual Tandem Diabetes Care shareholder, owning 3.69M shares representing 5.46% of the company. Douglas A. Roeder's Tandem Diabetes Care shares are currently valued at $39.32M.

If you're new to stock investing, here's how to buy Tandem Diabetes Care stock.
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