A Form 4 filed with the SEC on September 15, 2026, reports that Margaret Tooth, CEO and Director of Trupanion, Inc., sold 1,000 shares of common stock on September 11, 2026, under a pre-established Rule 10b5-1 trading plan.

Key Highlights

  • Reporting person: Margaret Tooth, CEO and Director of Trupanion, Inc.
  • Transaction: Sale (code S) of 1,000 shares of common stock on September 11, 2026, at $25 per share.
  • Remaining ownership: 185,952 shares of common stock held directly following the transaction.
  • 10b5-1 plan: The sale was executed under a Rule 10b5-1(c) trading plan adopted by Tooth on May 11, 2026.
  • Stated purpose: The plan was adopted "in order to implement a plan of financial diversification," according to the filing.
  • No reporting-person discretion: The filing states the reporting person "had no discretion with regard to the timing of the transaction."

Trupanion CEO Share Sale Details and 10b5-1 Plan Background

According to the Form 4 filed with the SEC, Margaret Tooth, who serves as both CEO and Director of Trupanion, Inc. (NASDAQ:TRUP), disposed of 1,000 shares of common stock on September 11, 2026, at a price of $25 per share. The transaction was recorded as a direct disposal (code S, ownership form D). Following the sale, Tooth directly held 185,952 shares of Trupanion common stock, as reported in the filing.

The filing discloses that the sale was carried out pursuant to a Rule 10b5-1(c) trading plan that Tooth adopted on May 11, 2026. The filing further states that the plan was adopted "in order to implement a plan of financial diversification" and that, as a result, the reporting person "had no discretion with regard to the timing of the transaction." The Form 4 also indicates the box confirming a Rule 10b5-1(c) plan was checked on the filing.

The Form 4 was signed by Lauren Welsh as attorney-in-fact for Margaret Tooth and dated September 14, 2026. No derivative securities transactions were reported in Table II of the filing. The filing was submitted as a single reporting person filing, with no co-filers indicated.

What Was Disclosed

Trupanion CEO Margaret Tooth sold 1,000 shares of common stock at $25 per share on September 11, 2026, under a pre-established Rule 10b5-1(c) plan, retaining direct beneficial ownership of 185,952 shares after the transaction.