When did CRL join the S&P 500?

Charles River Laboratories joined the S&P 500 index on 2021-05-14.

What sector is CRL in?

CRL is in the Health Care sector, Life Sciences Tools & Services industry.

CRL — Charles River Laboratories

Name: CRL Institutional Holdings (13F) — 2026Q1
Creator: SEC EDGAR
License: https://www.sec.gov/data

Life Sciences Tools & Services · Health Care

Key Facts

Status	Active
Sector	Health Care
Industry	Life Sciences Tools & Services
Joined	2021-05-14
Tenure	5 yrs

Charles River Laboratories International Inc, founded in 1947, is a leading provider of drug discovery and development services. The company's Research Models and Services segment is a leading supplier of laboratory testing animal models, breeding and providing animal research models with specific genetic characteristics worldwide for preclinical research. The Discovery and Safety Assessment segment includes services required during early-stage drug development, including discovery services. The Manufacturing Support segment includes Microbial Solutions, which provides in vitro (non-animal) testing products, biologics testing services, and avian vaccine services.

Industry Peers

A DHR IQV MTD TECH TMO WAT

Sector Peers

A ABBV ABT ALGN AMGN BAX BDX BIIB BMY BSX

S&P 500 Timeline

2021-05-14Joined S&P 500

Institutional Holdings (13F)

2 institutions hold CRL, totaling 97K shares ($17M) · As of 2026Q1

Rank	Institution	Shares	Value
1	Ranger Investment Management, L.P.	71K	$12M
2	13D Management LLC	26K	$4M

View all holders →

Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10