Investor FAQs

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On what exchange are Tandem's shares listed and what is your ticker symbol?

Tandem’s shares are listed on the NASDAQ Global Market under the ticker symbol “TNDM”.

When was Tandem's Initial Public Offering?

Tandem’s shares began trading on the NASDAQ Global Market on November 13, 2013.

Where are Tandem's headquarters?

Our headquarters are located at 11045 Roselle St. San Diego, CA 92121

Can I purchase or sell shares directly through Tandem?

No. The Company currently does not offer a direct stock purchase plan. If you are interested in purchasing or selling shares of TNDM please contact your broker.

What is your CUSIP?

Tandem’s CUSIP is 875372104.

Who are your independent auditors?

Ernst & Young LLP, 4370 La Jolla Village Drive, Suite 500, La Jolla, CA 92122.

Who is your Transfer Agent?

American Stock Transfer & Trust Company LLC, 6201 15th Avenue, Brooklyn, NY 11219.

How may I contact you?

If you are an analyst, institutional investor or have a stock-related question please click here. If you are a customer, person with diabetes, caregiver or healthcare professional please click here.