---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-25-043790"
form_type: "8-K"
ticker: "TMO"
cik: "0000097745"
company_name: "THERMO FISHER SCIENTIFIC INC."
filed_at: "2025-12-01T23:59:59+00:00"
generated_at: "2026-05-16T16:02:00.783389+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Thermo Fisher issues €2.1B in senior notes via finance subsidiary

## Summary
- Issued €1.0B floating-rate notes due 2027 and €1.1B 3.628% notes due 2035.
- Notes fully guaranteed by Thermo Fisher Scientific Inc. on a senior unsecured basis.
- Net proceeds of ~€2.09B after underwriting discounts and expenses.
- Proceeds for general corporate purposes including M&A, debt repayment, capex, or share buybacks.
- Issued by unit Thermo Fisher Scientific (Finance I) B.V.; listed on NYSE under various TMO tickers.

## SEC filing metadata
- accession: 0001140361-25-043790
- form_type: 8-K
- ticker: TMO
- cik: 0000097745
- company_name: THERMO FISHER SCIENTIFIC INC.
- filed_at: 2025-12-01T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/97745/000114036125043790/0001140361-25-043790-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/97745/000114036125043790/ef20060146_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-25-043790
- JSON: https://secwatch.observer/filing/0001140361-25-043790.json
- Plain text: https://secwatch.observer/filing/0001140361-25-043790.txt

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