---
schema_version: "secwatch.filing_event.v1"
accession: "0000097745-24-000003"
form_type: "8-K"
ticker: "TMO"
cik: "0000097745"
company_name: "THERMO FISHER SCIENTIFIC INC."
filed_at: "2024-01-31T23:59:59+00:00"
generated_at: "2026-06-06T14:34:32.751505+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Q4 revenue $10.89B (-5% YoY), adjusted EPS $5.67 (+5%); guides 2024 revenue $42.1-43.3B

## Summary
- Q4 GAAP EPS $4.20 (+5% YoY); adjusted EPS $5.67 (+5%); GAAP operating margin 17.0% vs 16.3%.
- Full-year 2023 revenue $42.86B (-5% YoY); adjusted EPS $21.55 vs $23.24 in 2022.
- Core organic revenue growth -4% in Q4; full-year core organic growth +1%.
- 2024 guidance: revenue $42.1B-$43.3B, adjusted EPS $20.95-$22.00.
- Returned $3.5B to shareholders via buybacks/dividends in 2023; completed acquisitions of Binding Site, CorEvitas, announced Olink.

## SEC filing metadata
- accession: 0000097745-24-000003
- form_type: 8-K
- ticker: TMO
- cik: 0000097745
- company_name: THERMO FISHER SCIENTIFIC INC.
- filed_at: 2024-01-31T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/97745/000009774524000003/0000097745-24-000003-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/97745/000009774524000003/tmo-20240131.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000097745-24-000003
- JSON: https://secwatch.observer/filing/0000097745-24-000003.json
- Plain text: https://secwatch.observer/filing/0000097745-24-000003.txt

## Key facts
- Earnings Releases
  THERMO FISHER SCIENTIFIC INC. updated its the fiscal quarter and year ended December 31, 2023 guidance (initiated).
  - Period: the fiscal quarter and year ended December 31, 2023
  - Guidance: initiated
  - Result: reported results
  source text: On January 31, 2024, the Registrant announced its financial results for the fiscal quarter and year ended December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/97745/000009774524000003/0000097745-24-000003-index.htm

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