X0508 4 2025-02-28 0000097745 THERMO FISHER SCIENTIFIC INC. TMO 0001648929 Williamson Stephen 168 THIRD AVENUE WALTHAM MA 02451 1 Sr. VP and CFO 0 Common Stock 2025-02-28 4 F 0 584.069 528.96 D 34135.74 D Common Stock 2025-02-28 4 F 0 1032.274 528.96 D 33103.466 D Common Stock 12674 I By SLAT Reflects a downward adjustment of 518 shares of a performance-based restricted stock unit award granted on February 23, 2022. On February 22, 2023, the reporting person reported the acquisition of the performance-based restricted stock unit award. One-third of the shares vested on February 28, 2023, one-third of the shares vested on February 28, 2024, and the remaining one-third vested on February 28, 2025, subject to adjustment based on the Company's relative total shareholder return ("TSR") over the measurement period starting on January 1, 2022, through to December 31, 2024. As a result of the Company's relative TSR, the third tranche was adjusted downward by 30%. As such, the reporting person received 518 less shares than the amount initially reported. The reporting person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein. /s/ Melodie T. Morin, Attorney-in-Fact for Stephen Williamson 2025-03-04