---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-054902"
form_type: "8-K"
ticker: "CRL"
cik: "0001100682"
company_name: "CHARLES RIVER LABORATORIES INTERNATIONAL, INC."
filed_at: "2025-12-03T23:59:59+00:00"
generated_at: "2026-05-16T15:00:44.309338+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Charles River Labs reports improving DSA book-to-bill trends, encouraged by momentum since mid-2025

## Summary
- DSA net book-to-bill has improved each month since Q3 2025 started.
- Management cites positive momentum and upward trends from mid-2025 onward.
- Seasonality around holidays and early January may affect near-term proposal and booking activity.
- Update provided at Evercore 8th Annual Healthcare Conference on December 3, 2025.

## SEC filing metadata
- accession: 0001628280-25-054902
- form_type: 8-K
- ticker: CRL
- cik: 0001100682
- company_name: CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
- filed_at: 2025-12-03T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1100682/000162828025054902/0001628280-25-054902-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1100682/000162828025054902/crl-20251203.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-054902
- JSON: https://secwatch.observer/filing/0001628280-25-054902.json
- Plain text: https://secwatch.observer/filing/0001628280-25-054902.txt

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