$TMO · Thermo Fisher Scientific Inc.

The filing is a Form 4 statement of changes in beneficial ownership for R. Alexandra Keith, a director of Thermo Fisher Scientific Inc. It reports a transaction dated September 26, 2026, in which Keith acquired 46.3 phantom stock units at a price of $675.00 per unit under the company's Deferred Compensation Plan for Directors. These units convert into common stock on a one-for-one basis.

The phantom stock units represent deferred quarterly director retainers, credited based on the closing stock price at quarter end. Following the reported transaction, Keith beneficially owned 1,377.65 phantom stock units. The units are distributable as common stock upon cessation of director service for any reason or upon a change of control.