Thermo Fisher Scientific Stock (TMO) After Hours: Key News, Analyst Forecasts, and What to Watch Before the Market Opens on Dec. 19, 2025
Thermo Fisher Scientific (TMO) closed at $562.39 on December 18, down 0.03%, despite a broad market rally. Shares traded between $554.53 and $569.41 during the session, with about 2.24 million shares changing hands. After hours, the stock remained steady near $562.40. The company announced enrollment of the first patient in its new Alzheimer’s Disease Registry.