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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
Jeanclaude KyrillosCOO;EVP2026-08-15535$22.72
$12.16kSell
Shannon Marie HansenCLO;EVP2026-08-15976$22.72
$22.17kSell
Shannon Marie HansenCLO;EVP2026-08-15559$22.72
$12.70kSell
Susan MorrisonCAO;EVP2026-08-15495$22.72
$11.25kSell
Leigh VossellerCFO;EVP2026-08-15942$22.72
$21.40kSell
Leigh VossellerCFO;EVP2026-08-15537$22.72
$12.20kSell
John F. SheridanCEO;Pres2026-08-155,055$22.72
$114.85kSell
Elizabeth Anne GasserCStrat;EVP2026-08-15589$22.72
$13.38kSell
Elizabeth Anne GasserCStrat;EVP2026-08-151,029$22.72
$23.38kSell
John F. SheridanCEO;Pres2026-08-153,044$22.72
$69.16kSell

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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
Douglas A. Roeder5.30%3,688,625$60.57MInsider
Delphi Management Partners VIII LLC5.27%3,668,019$60.23MInsider
Nicole Vitullo4.66%3,243,448$53.26MInsider
James C. Blair4.66%3,243,448$53.26MInsider
Kathleen K. Schoemaker4.66%3,243,448$53.26MInsider
Brian K. Halak4.66%3,243,448$53.26MInsider
Jesse I. Treu4.66%3,243,448$53.26MInsider
Brian H. Dovey4.66%3,243,448$53.26MInsider
Domain Parters VII L P4.58%3,189,058$52.36MInsider
Tpg Group Holdings Sbs Advisors Inc3.59%2,496,194$40.99MInsider

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TNDM vs Medical Device Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
TNDM0.11%54.15%Net SellingNet Selling
BVS0.06%96.06%Net Selling
AORT0.09%22.15%Net SellingNet Selling
IRMD0.06%39.26%Net SellingNet Selling
ENOV0.08%99.92%Net SellingNet 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 0.11% institutional shareholders, 54.15% Tandem Diabetes Care insiders, and 45.73% retail investors. Douglas A. Roeder is the largest individual Tandem Diabetes Care shareholder, owning 3.69M shares representing 5.30% of the company. Douglas A. Roeder's Tandem Diabetes Care shares are currently valued at $61.12M.

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