CRL Insider Trading

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Insider Trading History
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Insider Ownership Percentage: 1.30%

Insider Buying (Last 12 Months): $1,251,685.57

Insider Selling (Last 12 Months): $993,503.20

Charles River Laboratories International Insider Trading History Chart

Charles River Laboratories International Share Price & Price History

^$184.08

▼ -0.592 (-0.32%)

As of 12/4/2025 04:59 PM ET

Days: 30 | 90 | 365

Charles River Laboratories International Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
8/18/2025	Joseph W. LaPlume	EVP	Sell	800	$157.60	$126,080.00	24,116
8/7/2025	Joseph W. LaPlume	EVP	Sell	400	$150.04	$60,016.00	24,916
5/14/2025	George Massaro	Director	Sell	140	$140.73	$19,702.20	5,715
5/13/2025	Joseph W. LaPlume	EVP	Sell	500	$145.41	$72,705.00	19,513
2/20/2025	Birgit Girshick	COO	Buy	1,514	$164.63	$249,249.82	55,058
2/20/2025	James C Foster	CEO	Buy	6,075	$165.01	$1,002,435.75	183,639
2/20/2025	Joseph W. LaPlume	EVP	Sell	4,400	$162.50	$715,000.00	20,013
11/7/2024	Richard F. Wallman	Director	Sell	6,621	$216.12	$1,430,930.52	12,386
5/10/2024	Joseph W. LaPlume	EVP	Sell	1,304	$226.97	$295,968.88	23,276
2/29/2024	Victoria L Creamer	EVP	Sell	5,000	$253.70	$1,268,500.00	13,550
2/22/2024	William D Barbo	VP	Sell	4,050	$248.50	$1,006,425.00	22,879
2/15/2024	Shannon M. Parisotto	EVP	Sell	5,882	$241.20	$1,418,738.40	2,596
11/20/2023	Birgit Girshick	COO	Buy	1,322	$187.82	$248,298.04	44,449
11/14/2023	James C Foster	CEO	Buy	5,620	$178.05	$1,000,641.00	202,643
8/24/2023	Richard F. Wallman	Director	Buy	1,000	$198.79	$198,790.00	1,000
8/10/2023	Joseph W. LaPlume	EVP	Sell	700	$216.52	$151,564.00	24,983
8/10/2023	Michael Gunnar Knell	CAO	Sell	1,471	$216.54	$318,530.34	9,940
8/10/2023	William D Barbo	VP	Sell	5,763	$217.24	$1,251,954.12	3,592
5/15/2023	Joseph W. LaPlume	EVP	Sell	345	$190.39	$65,684.55	24,026
2/16/2023	Birgit Girshick	COO	Sell	3,205	$254.39	$815,319.95	41,038
2/16/2023	Shannon M. Parisotto	EVP	Sell	4,558	$254.41	$1,159,600.78	6,010
2/15/2023	James C Foster	CEO	Sell	20,000	$250.00	$5,000,000.00	216,594
12/1/2022	Joseph W. LaPlume	EVP	Sell	6,409	$224.25	$1,437,218.25	20,232

SEC Filings (Institutional Ownership Changes) for Charles River Laboratories International (NYSE:CRL)

98.91% of Charles River Laboratories International stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Charles River Laboratories International Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
12/2/2025	Allworth Financial LP	217	$34K	0.0%	-27.7%	0.000%
12/2/2025	Swiss Life Asset Management Ltd	2,210	$0.35M	0.0%	-14.7%	0.004%
12/1/2025	Groupama Asset Managment	2,656	$0.42M	0.0%	N/A	0.005%
11/24/2025	CIBC Private Wealth Group LLC	9,728	$1.52M	0.0%	-34.6%	0.020%
11/21/2025	CIBC Bancorp USA Inc.	5,025	$0.79M	0.0%	N/A	0.010%
11/19/2025	Danske Bank A S	26,011	$4.07M	0.0%	N/A	0.053%
11/19/2025	Caitong International Asset Management Co. Ltd	177	$28K	0.0%	-52.3%	0.000%
11/18/2025	Advisory Services Network LLC	3,226	$0.51M	0.0%	+2.6%	0.007%
11/17/2025	NewEdge Advisors LLC	262	$41K	0.0%	-40.7%	0.001%
11/17/2025	Castleark Management LLC	31,265	$4.89M	0.1%	N/A	0.064%
11/17/2025	Armistice Capital LLC	1,932	$0.30M	0.0%	N/A	0.004%
11/17/2025	CANADA LIFE ASSURANCE Co	15,341	$2.25M	0.0%	+36.5%	0.031%
11/17/2025	Alyeska Investment Group L.P.	292,177	$45.71M	0.1%	-0.2%	0.594%
11/17/2025	United Capital Financial Advisors LLC	3,444	$0.54M	0.0%	N/A	0.007%
11/17/2025	Utah Retirement Systems	8,051	$1.26M	0.0%	-2.5%	0.016%
11/17/2025	Voloridge Investment Management LLC	87,227	$13.65M	0.0%	-5.0%	0.177%
11/17/2025	Verition Fund Management LLC	9,706	$1.52M	0.0%	-67.7%	0.020%
11/17/2025	Steadfast Capital Management LP	71,900	$11.25M	0.2%	N/A	0.146%
11/17/2025	Polymer Capital Management US LLC	4,495	$0.70M	0.1%	N/A	0.009%
11/17/2025	Public Employees Retirement System of Ohio	15,240	$2.38M	0.0%	+0.6%	0.031%
11/17/2025	Nomura Holdings Inc.	806,275	$126.15M	0.2%	-49.0%	1.638%
11/17/2025	Northern Trust Corp	476,464	$74.55M	0.0%	-0.2%	0.968%
11/17/2025	Mariner LLC	18,356	$2.87M	0.0%	+8.8%	0.037%
11/17/2025	Mercer Global Advisors Inc. ADV	6,236	$0.98M	0.0%	+107.0%	0.013%
11/17/2025	National Bank of Canada FI	946,769	$148.13M	0.1%	+117.7%	1.924%
11/17/2025	Millennium Management LLC	465,098	$72.77M	0.0%	-15.8%	0.945%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	3,664	$0.57M	0.0%	-2.8%	0.007%
11/17/2025	Moore Capital Management LP	48,925	$7.66M	0.1%	+82.5%	0.099%
11/17/2025	Lighthouse Investment Partners LLC	5,500	$0.86M	0.0%	N/A	0.011%
11/17/2025	Iron Triangle Partners LP	268,000	$41.93M	6.0%	-16.3%	0.545%
11/17/2025	Hollow Brook Wealth Management LLC	13,373	$2.09M	0.5%	+33.9%	0.027%
11/17/2025	Humankind Investments LLC	1,305	$0.20M	0.0%	-5.9%	0.003%
11/17/2025	Gotham Asset Management LLC	315,755	$49.40M	0.2%	+17.3%	0.642%
11/17/2025	Earnest Partners LLC	1,006,724	$157.51M	0.7%	+0.8%	2.046%
11/17/2025	Brevan Howard Capital Management LP	11,197	$1.75M	0.0%	-66.6%	0.023%
11/17/2025	Chevy Chase Trust Holdings LLC	25,116	$3.93M	0.0%	-3.2%	0.051%
11/17/2025	Banco Bilbao Vizcaya Argentaria S.A.	14,559	$2.28M	0.0%	+2.8%	0.030%
11/17/2025	Bridgefront Capital LLC	2,355	$0.37M	0.1%	N/A	0.005%
11/17/2025	California Public Employees Retirement System	83,797	$13.11M	0.0%	-1.0%	0.170%
11/17/2025	Bank of America Corp DE	1,163,348	$182.02M	0.0%	+13.4%	2.364%
11/17/2025	Bank of Nova Scotia	5,244	$0.82M	0.0%	-97.4%	0.011%
11/17/2025	Aquatic Capital Management LLC	14,905	$2.33M	0.0%	-58.0%	0.030%
11/17/2025	Aristotle Capital Boston LLC	95,348	$14.92M	0.8%	-1.0%	0.194%
11/17/2025	Algert Global LLC	112,870	$17.66M	0.3%	+54.0%	0.229%
11/17/2025	Alliancebernstein L.P.	219,975	$34.42M	0.0%	+232.8%	0.447%
11/17/2025	Ameriprise Financial Inc.	613,604	$96.01M	0.0%	+1,491.1%	1.247%
11/14/2025	Schonfeld Strategic Advisors LLC	27,162	$4.25M	0.0%	-57.3%	0.055%
11/14/2025	Creative Planning	11,030	$1.73M	0.0%	+24.0%	0.022%
11/14/2025	Lazard Asset Management LLC	7,605	$1.19M	0.0%	+5.7%	0.015%
11/14/2025	AQR Capital Management LLC	265,083	$39.52M	0.0%	+890.7%	0.539%
11/14/2025	Credit Agricole S A	5,678	$0.89M	0.0%	N/A	0.012%
11/14/2025	Raymond James Financial Inc.	22,278	$3.49M	0.0%	-12.2%	0.045%
11/14/2025	Virtu Financial LLC	2,175	$0.34M	0.0%	N/A	0.004%
11/14/2025	Amundi	310,174	$48.53M	0.0%	+37.1%	0.630%
11/14/2025	Caisse de depot et placement du Quebec	14,000	$2.19M	0.0%	N/A	0.028%
11/14/2025	Man Group plc	100,560	$15.73M	0.0%	-32.3%	0.204%
11/14/2025	California State Teachers Retirement System	46,085	$7.21M	0.0%	-2.4%	0.094%
11/14/2025	Logan Capital Management Inc.	13,017	$2.04M	0.1%	+17.4%	0.026%
11/14/2025	Zurcher Kantonalbank Zurich Cantonalbank	14,014	$2.19M	0.0%	+27.4%	0.028%
11/14/2025	DF Dent & Co. Inc.	74,672	$11.68M	0.2%	-54.0%	0.152%
11/14/2025	Balyasny Asset Management L.P.	151,355	$23.68M	0.0%	-65.1%	0.308%
11/14/2025	Longaeva Partners L.P.	50,000	$7.82M	1.1%	N/A	0.102%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	208,260	$32.58M	0.0%	-26.6%	0.423%
11/14/2025	Two Sigma Investments LP	67,761	$10.60M	0.0%	-27.7%	0.138%
11/14/2025	Integral Health Asset Management LLC	60,000	$9.39M	0.6%	-47.8%	0.122%
11/14/2025	iSAM Funds UK Ltd	3,375	$0.53M	0.1%	N/A	0.007%
11/14/2025	Wellington Management Group LLP	3,190,467	$499.18M	0.1%	-15.3%	6.483%
11/14/2025	Comerica Bank	14,026	$2.20M	0.0%	-1.6%	0.028%
11/14/2025	Brown Brothers Harriman & Co.	482	$75K	0.0%	+62.8%	0.001%
11/14/2025	Broyhill Asset Management LLC	14,788	$2.31M	2.0%	-9.5%	0.030%
11/14/2025	FORA Capital LLC	2,337	$0.37M	0.1%	N/A	0.005%
11/14/2025	Glenmede Investment Management LP	2,606	$0.41M	0.0%	-13.0%	0.005%
11/13/2025	Epoch Investment Partners Inc.	26,538	$4.15M	0.0%	+594.0%	0.054%
11/13/2025	Marshall Wace LLP	138,110	$21.61M	0.0%	+881.5%	0.281%
11/13/2025	Entropy Technologies LP	13,906	$2.18M	0.2%	+880.0%	0.028%
11/13/2025	Landscape Capital Management L.L.C.	6,972	$1.09M	0.1%	N/A	0.014%
11/13/2025	Kennedy Capital Management LLC	43,908	$6.87M	0.2%	-17.7%	0.089%
11/13/2025	Meridiem Capital Partners LP	70,467	$11.03M	0.7%	-41.3%	0.143%
11/13/2025	Certuity LLC	1,632	$0.26M	0.0%	N/A	0.003%
11/13/2025	Quadrature Capital Ltd	9,851	$1.54M	0.0%	-45.2%	0.020%
11/13/2025	Quantitative Investment Management LLC	2,778	$0.43M	0.1%	N/A	0.006%
11/13/2025	Arrowstreet Capital Limited Partnership	769,437	$120.39M	0.1%	+33.0%	1.563%
11/13/2025	Invesco Ltd.	1,249,178	$195.45M	0.0%	+1.0%	2.538%
11/13/2025	Sei Investments Co.	749,723	$117.30M	0.1%	+4.9%	1.523%
11/13/2025	UBS Group AG	592,756	$92.74M	0.0%	-19.4%	1.204%
11/13/2025	Connor Clark & Lunn Investment Management Ltd.	180,564	$28.25M	0.1%	-5.6%	0.367%
11/13/2025	Geneva Capital Management LLC	12,697	$1.99M	0.0%	-2.8%	0.026%
11/13/2025	BNP Paribas Financial Markets	109,879	$17.19M	0.0%	+22.6%	0.223%
11/13/2025	Mackenzie Financial Corp	995,387	$155.74M	0.2%	-0.7%	2.023%
11/13/2025	Franklin Resources Inc.	28,666	$4.49M	0.0%	-87.3%	0.058%
11/13/2025	Magnetar Financial LLC	23,173	$3.63M	0.0%	+1,379.8%	0.047%
11/13/2025	Van ECK Associates Corp	38,790	$6.07M	0.0%	-12.9%	0.079%
11/13/2025	Legal & General Group Plc	108,245	$16.93M	0.0%	+1.9%	0.220%
11/13/2025	Banque Cantonale Vaudoise	2,292	$0.36M	0.0%	-7.9%	0.005%
11/13/2025	Vestcor Inc	4,968	$0.78M	0.0%	+37.0%	0.010%
11/13/2025	Swiss National Bank	95,200	$14.90M	0.0%	+1.5%	0.193%
11/13/2025	Russell Investments Group Ltd.	49,679	$7.77M	0.0%	+59.4%	0.101%
11/13/2025	Jefferies Financial Group Inc.	5,000	$0.78M	0.0%	-43.6%	0.010%
11/13/2025	Dynamic Technology Lab Private Ltd	2,350	$0.37M	0.1%	N/A	0.005%
11/13/2025	Vinva Investment Management Ltd	3,724	$0.58M	0.0%	N/A	0.008%

Data available starting January 2016

Charles River Laboratories International, Inc. 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 rodents, 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 pre-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 preclinical 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. It also provides contract vivarium operation services to biopharmaceutical clients. The company was founded in 1947 and is headquartered in Wilmington, Massachusetts.

Today's Range

Now: $184.08

$176.37

$186.72

50 Day Range

MA: $174.12

$146.88

$197.52

52 Week Range

Now: $184.08

$91.86

$202.72

Volume

992,736 shs

Average Volume

954,556 shs

Market Capitalization

$9.06 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.63

Who are the company insiders with the largest holdings of Charles River Laboratories International?: Charles River Laboratories International's top insider investors include:
James C Foster (CEO)
Birgit Girshick (COO)
Joseph W Laplume (EVP)
William D Barbo (VP)
Victoria L Creamer (EVP)
Richard F Wallman (Director)
George Massaro (Director)
Shannon M Parisotto (EVP)
Learn More about top insider investors at Charles River Laboratories International.
Who are the major institutional investors of Charles River Laboratories International?: Charles River Laboratories International's top institutional investors include:
Vanguard Group Inc. — 11.87%
Wellington Management Group LLP — 6.48%
Allspring Global Investments Holdings LLC — 4.43%
Invesco Ltd. — 2.54%
Bank of America Corp DE — 2.36%
Dimensional Fund Advisors LP — 2.30%
Learn More about top institutional investors of Charles River Laboratories International stock.
Which major investors are selling Charles River Laboratories International stock?: During the last quarter, CRL stock was sold by these institutional investors:
Nomura Holdings Inc.
Wellington Management Group LLP
Assenagon Asset Management S.A.
Balyasny Asset Management L.P.
Bank of Nova Scotia
Franklin Resources Inc.
UBS Group AG
Allspring Global Investments Holdings LLC
In the last year, company insiders that have sold Charles River Laboratories International company stock include:
James C Foster (CEO)
Birgit Girshick (COO)
Learn More investors selling Charles River Laboratories International stock.
Which major investors are buying Charles River Laboratories International stock?: During the previous quarter, CRL stock was bought by institutional investors including:
Ameriprise Financial Inc.
National Bank of Canada FI
LSV Asset Management
AQR Capital Management LLC
Arrowstreet Capital Limited Partnership
Mizuho Markets Americas LLC
Alliancebernstein L.P.
Bank of America Corp DE
During the last year, these company insiders have bought Charles River Laboratories International stock:
James C Foster (CEO)
Birgit Girshick (COO)
Learn More investors buying Charles River Laboratories International stock.