Thermo Fisher (TMO)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-19 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: THERMO FISHER SCIENTIFIC INC. (TMO) CIK: 0000097745 --- Reporting Owner --- Name: Britt Lisa P. CIK: 0001676320 Role: Officer (Sr. VP and Chief HR Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-19 | Code: M (Exercise of derivative) Shares: +11,440 | Price: $418.32 Total Value: $4,785,580.80 Shares Owned After: 26,224.148 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-08-19 | Code: S (Open market sale) Shares: -11,440 | Price: $613.12 Total Value: $7,014,092.80 Shares Owned After: 14,784.148 | Ownership: D (Direct) Footnotes: [F1] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $613.09 to $613.49, inclusive. The reporting person undertakes to provide to Thermo Fisher Scientific Inc. ("TMO"), any security holder of TMO or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. --- Derivative Transactions --- [Transaction #1] Security: Stock Option (Right to Buy) Date: 2026-08-19 | Code: M (Exercise of derivative) Shares: -11,440 | Price: $0.00 Exercisable: N/A | Expires: 2027-09-09 Shares Owned After: 0 | Ownership: D (Direct) --- Footnotes (Complete Index) --- F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $613.09 to $613.49, inclusive. The reporting person undertakes to provide to Thermo Fisher Scientific Inc. ("TMO"), any security holder of TMO or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. --- Signature --- /s/ /s/ Melodie T. Morin, Attorney-in-Fact for Lisa P. Britt (2026-08-20)