Thermo Fisher Scientific Inc. (NYSE, TMO) announced an offering of $3.8 billion aggregate principal amount of USD denominated senior notes, consisting of $1,000,000,000 aggregate principal amount of its 4.215% Senior Notes due 2031, $750,000,000 aggregate principal amount of its 4.550% Senior Notes due 2033, $1,300,000,000 aggregate principal amount of its 4.902% Senior Notes due 2036, and $750,000,000 aggregate principal amount of its 5.546% Senior Notes due 2046. The offering priced on February 9, 2026, and closed on February 12, 2026. The joint book running managers for the offering were Deutsche Bank Securities Inc., RBC Capital Markets, LLC, SMBC Nikko Securities America, Inc., and Wells Fargo Securities, LLC.
WilmerHale advised Thermo Fisher on the transaction.
The WilmerHale team consisted of Molly Fox, Andrew Langworthy, Rachael Joseph, Amy O’Connell, and Madeline Gatto (Capital Markets), with assistance from Meghan Walsh and Skyler Dykes (Tax).