Institutional shares held 50.5 Million
122K calls
239K puts
Total value of holdings $5.82B
$14M calls
$27.5M puts
Market Cap $5.97B
50,863,300 Shares Out.
Institutional ownership 99.35%
# of Institutions 702


Latest Institutional Activity in CRL

Top Purchases

Q1 2025
Assenagon Asset Management S.A. Shares Held: 570K ($66.9M)
Q1 2025
Sg Americas Securities, LLC Shares Held: 267K ($31.3M)
Q1 2025
Pekin Hardy Strauss, Inc. Shares Held: 23.4K ($2.74M)
Q1 2025
Iridian Asset Management LLC Shares Held: 60.4K ($7.09M)
Q1 2025
Teacher Retirement System Of Texas Shares Held: 8.18K ($959K)

Top Sells

Q1 2025
Gamma Investing LLC Shares Held: 1.4K ($164K)
Q1 2025
Sumitomo Mitsui Trust Holdings, Inc. Shares Held: 2.14K ($251K)
Q1 2025
Allspring Global Investments Holdings, LLC Shares Held: 1.77M ($208M)
Q1 2025
Envestnet Asset Management Inc Shares Held: 221K ($26M)
Q1 2025
Asset Management One Co., Ltd. Shares Held: 1.49K ($175K)

About CRL

Charles River Laboratories International, Inc., a non-clinical contract research organization, provides drug discovery, non-clinical development, and safety testing services in the United States, Europe, Canada, the Asia Pacific, and internationally. It operates through three segments: Research Models and Services (RMS), Discovery and Safety Assessment (DSA), and Manufacturing Solutions (Manufacturing). The RMS segment produces and sells rodent research model strains and purpose-bred rats and mice for use by researchers. This segment also provides a range of services to assist its clients in supporting the use of research models in research and screening non-clinical drug candidates, including research models, genetically engineered models and services, insourcing solutions, and research animal diagnostic services. The DSA segment offers early and in vivo discovery services for the identification and validation of novel targets, chemical compounds, and antibodies through delivery of non-clinical drug and therapeutic candidates ready for safety assessment; and safety assessment services, such as toxicology, pathology, safety pharmacology, bioanalysis, drug metabolism, and pharmacokinetics services. The Manufacturing segment provides in vitro methods for conventional and rapid quality control testing of sterile and non-sterile pharmaceuticals and consumer products. This segment also offers specialized testing of biologics that are outsourced by pharmaceutical and biotechnology companies; and avian vaccine services that provide specific-pathogen-free (SPF) fertile chicken eggs, SPF chickens, and diagnostic products used to manufacture vaccines. The company also provides contract vivarium operation services to biopharmaceutical clients. Charles River Laboratories International, Inc. was founded in 1947 and is headquartered in Wilmington, Massachusetts.


Insider Transactions at CRL

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
61.6K Shares
From 19 Insiders
Grant, award, or other acquisition 54K shares
Open market or private purchase 7.59K shares
Sell / Disposition
70.3K Shares
From 17 Insiders
Payment of exercise price or tax liability 17.2K shares
Bona fide gift 12.8K shares
Open market or private sale 40.4K shares

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P - Open market or private purchase×
S - Open market or private sale×
V - Transaction voluntarily reported earlier than required×
A - Grant, award, or other acquisition×
D - Sale (or disposition) back to the issuer×
F - Payment of exercise price or tax liability×
I - Discretionary transaction×
M - Exercise of conversion of derivative security×
C - Conversion of derivative security×
E - Expiration of short derivative position×
H - Expiration (or cancellation) of long derivative position with value received×
O - Exercise of out-of-the-money derivative securities×
X - Exercise of in-the-money or at-the-money derivatives securities×
G - Bona fide gift×
L - Small Acquisition×
W - Acquisition or disposition by will or laws×
Z - Deposit into or withdrawal from voting trust×
J - Other acquisition or disposition×
K - Transaction in equity swap or similar instrument×
U - Disposition due to a tender of shares in a change of control transaction×
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