Thermo Fisher Scientific Inc. announced that it has priced an offering of $5.85 billion aggregate principal amount of the following notes, each issued at par: $1,000,000,000 aggregate principal amount of its 18-month floating rate senior notes due 2023, $500,000,000 aggregate principal amount of its floating rate senior notes due 2023, $500,000,000 aggregate principal amount of its floating rate senior notes due 2024, $1,350,000,000 aggregate principal amount of its 0.797% senior notes due 2023, and $2,500,000,000 aggregate principal amount of its 1.215% senior notes due 2024. The Offering is expected to close on or about October 22, 2021, subject to customary closing conditions. The Floating Rate Notes will pay interest quarterly. The Fixed Rate Notes will pay interest on a semi-annual basis. The joint book-running managers for the Offering are Barclays Capital Inc., Morgan Stanley & Co. LLC, BofA Securities Inc., Citigroup Global Markets Inc. and Mizuho Securities USA LLC.