Form 4: Tandem Diabetes Executive Transfers Shares to Family Trust

Tandem Diabetes Care EVP and Chief Strategy Officer, Elizabeth Gasser, transferred 3,000 shares of common stock from her direct holdings to The Gasser Family Trust.

Summary

• Elizabeth Anne Gasser, EVP and Chief Strategy Officer of Tandem Diabetes Care Inc. (TNDM), reported a change in beneficial ownership of common stock.
• On December 4, 2025, Gasser disposed of 3,000 shares directly from her holdings.
• Concurrently, 3,000 shares were acquired indirectly by Gasser through The Gasser Family Trust.
• This transaction represents a transfer of shares from Gasser's direct holdings to The Gasser Family Trust, not a sale or purchase on the open market.
• Following the transaction, Gasser directly owns 0 shares and indirectly owns 25,949 shares through The Gasser Family Trust, where she serves as a co-trustee.
• The transaction was made pursuant to a Rule 10b5-1(c) plan.

Sentiment

Score: 5

Explanation: Neutral. This Form 4 reports an internal transfer of shares by an insider to a family trust, which is a routine administrative event and does not reflect a change in the insider's overall economic interest or a market transaction.

Industry Context

This transaction is an internal transfer of shares by a company insider and does not directly relate to broader industry trends or competitive dynamics.

Key Dates

Keywords

Tandem Diabetes Care, TNDM, SEC Form 4, Insider Transaction, Stock Transfer, Elizabeth Gasser, Family Trust, Beneficial Ownership