---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-23-039086"
form_type: "8-K"
ticker: "TMO"
cik: "0000097745"
company_name: "THERMO FISHER SCIENTIFIC INC."
filed_at: "2023-08-10T23:59:59+00:00"
generated_at: "2026-06-11T21:05:28.669036+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Thermo Fisher issues $2.95B senior notes, redeems $1B floating-rate notes

## Summary
- Issued $600M 4.953% notes due 2026, $750M 4.977% notes due 2030, $1B 5.086% notes due 2033, $600M 5.404% notes due 2043.
- Net proceeds ~$2.92B; $1B to redeem $500M Floating Rate Notes 2023 and $500M Floating Rate Notes 2024.
- Remaining proceeds for general corporate purposes including acquisitions, debt refinancing, or share repurchases.
- Concurrently entered into $2.95B Japanese yen cross currency swaps.

## SEC filing metadata
- accession: 0001140361-23-039086
- form_type: 8-K
- ticker: TMO
- cik: 0000097745
- company_name: THERMO FISHER SCIENTIFIC INC.
- filed_at: 2023-08-10T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/97745/000114036123039086/0001140361-23-039086-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/97745/000114036123039086/brhc20057279_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-23-039086
- JSON: https://secwatch.observer/filing/0001140361-23-039086.json
- Plain text: https://secwatch.observer/filing/0001140361-23-039086.txt

## Key facts
- Material Agreements
  THERMO FISHER SCIENTIFIC INC. entered into Twenty-Seventh Supplemental Indenture with The Bank of New York Mellon Trust Company, N.A. valued at $2,950,000,000 aggregate principal amount (effective 2023-08-10).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: The Bank of New York Mellon Trust Company, N.A.
  - Value: $2,950,000,000 aggregate principal amount
  - Effective: 2023-08-10
  source text: On August 10, 2023, Thermo Fisher Scientific Inc. (the “Company”) issued $600,000,000 aggregate principal amount of 4.953% Senior Notes due 2026 (the “2026 Notes”), $750,000,000 aggregate principal amount of 4.977% Senior Notes due 2030 (the “2030 Notes”), $1,000,000,000 aggregate principal amount of 5.086% Senior Notes due 2033 (the “2033 Notes”) and $600,000,000 aggregate principal amount of 5.404% Senior Notes due 2043 (the “2043 Notes” and, together with the 2026 Notes, the 2030 Notes and the 2033 Notes, the “Notes”) in a public offering (the “Offering”) pursuant to a registration statement on Form S-3 (File No. 333-263034) and a preliminary prospectus supplement and prospectus supplement related to the offering of the Notes, each as previously filed with the Securities and Exchange Commission.
  evidence_url: https://www.sec.gov/Archives/edgar/data/97745/000114036123039086/0001140361-23-039086-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.