Tandem Diabetes Care Inc

TNDMNASDAQ
$19.90
-0.53-2.59%
At close: Sep 3, 5:00 PM EST
$19.79
-0.64-3.13%
Pre-Market: 7:30 AM EST

Tandem Diabetes Care Ownership & Insider Activity

Tandem Diabetes Care (TNDM) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 1.0% of shares outstanding. Institutional investors hold 55.8%.

Shares Outstanding

69.579M

Shares Float

51.954M

Insider Shares Owned

687.636K

Insider % Owned

1.0%

Institutional Shares Held

38.855M

Institutional % Held

55.8%

Ownership Breakdown

Net Insider Activity by Month

Tandem Diabetes Care Insider Transactions (Last 6 Months)

See all insider trades
DateInsiderTitleTypeSharesPriceValue
Mar 16, 2026Mark D. NovaraEVP & CHIEF COMMERCIAL OFFICERSELL-OPTIONS1.687K$21.64$124K

Congressional Trading Activity

See all government trades
DateMemberPartyChamberActionAmount
Mar 3, 2026Gilbert Ray CisnerosDHouseP$1,001 - $15,000
Sep 22, 2025Josh GottheimerDHouseP$1,001 - $15,000