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CRL Insider Trading

Insider Ownership Percentage: 1.30%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $42,606,388.18

Charles River Laboratories International Insider Trading History Chart

This chart shows the insider buying and selling history at Charles River Laboratories International by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Charles River Laboratories International Share Price & Price History

Current Price: $278.02
Price Change: ▲ Price Increase of +5.018 (1.84%)
As of 09/11/2026 03:58 PM ET

This chart shows the closing price history over time for CRL up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Charles River Laboratories International Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
8/25/2026James C FosterDirectorSell33,561$300.00$10,068,300.0031,596View SEC Filing Icon  
8/19/2026Shannon M. ParisottoEVPSell2,039$294.12$599,710.684,807View SEC Filing Icon  
8/18/2026Nancy C AndrewsDirectorSell573$285.24$163,442.521,438View SEC Filing Icon  
8/11/2026Birgit GirshickCEOSell6,500$279.90$1,819,350.0036,013View SEC Filing Icon  
8/11/2026Shannon M. ParisottoEVPSell3,714$279.66$1,038,657.244,807View SEC Filing Icon  
8/10/2026James C FosterDirectorSell28,733$275.00$7,901,575.0031,596View SEC Filing Icon  
8/6/2026Michael Gunnar KnellCAOSell6,645$260.38$1,730,225.1011,852View SEC Filing Icon  
8/6/2026Victoria L CreamerEVPSell4,179$259.16$1,083,029.6430,051View SEC Filing Icon  
8/5/2026Shannon M. ParisottoEVPSell5,046$263.00$1,327,098.004,807View SEC Filing Icon  
6/29/2026James C FosterDirectorSell75,000$225.00$16,875,000.0031,596View SEC Filing Icon  
8/22/2025Joseph W. LaPlumeEVPSell400$163.72$65,488.0023,716View SEC Filing Icon  
8/18/2025Joseph W. LaPlumeEVPSell800$157.60$126,080.0024,116View SEC Filing Icon  
8/7/2025Joseph W. LaPlumeEVPSell400$150.04$60,016.0024,916View SEC Filing Icon  
5/14/2025George MassaroDirectorSell140$140.73$19,702.205,715View SEC Filing Icon  
5/13/2025Joseph W. LaPlumeEVPSell500$145.41$72,705.0019,513View SEC Filing Icon  
2/20/2025Birgit GirshickCOOBuy1,514$164.63$249,249.8255,058View SEC Filing Icon  
2/20/2025James C FosterCEOBuy6,075$165.01$1,002,435.75183,639View SEC Filing Icon  
2/20/2025Joseph W. LaPlumeEVPSell4,400$162.50$715,000.0020,013View SEC Filing Icon  
11/7/2024Richard F. WallmanDirectorSell6,621$216.12$1,430,930.5212,386View SEC Filing Icon  
5/10/2024Joseph W. LaPlumeEVPSell1,304$226.97$295,968.8823,276View SEC Filing Icon  
2/29/2024Victoria L CreamerEVPSell5,000$253.70$1,268,500.0013,550View SEC Filing Icon  
2/22/2024William D BarboVPSell4,050$248.50$1,006,425.0022,879View SEC Filing Icon  
2/15/2024Shannon M. ParisottoEVPSell5,882$241.20$1,418,738.402,596View SEC Filing Icon  
11/20/2023Birgit GirshickCOOBuy1,322$187.82$248,298.0444,449View SEC Filing Icon  
11/14/2023James C FosterCEOBuy5,620$178.05$1,000,641.00202,643View SEC Filing Icon  
See Full Table

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

This chart shows the instiutional buying and selling at CRL by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Charles River Laboratories International Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/10/2026ABS Direct Equity Fund LLC227$51K0.0%-77.3%0.000%Search for SEC Filing on Google Icon
9/9/2026Sequoia Financial Advisors LLC2,805$0.64M0.0%-19.7%0.006%Search for SEC Filing on Google Icon
9/9/2026Tidal Investments LLC6,371$1.45M0.0%+26.5%0.013%Search for SEC Filing on Google Icon
9/9/2026Engineers Gate Manager LP29,267$6.64M0.1%-68.8%0.061%Search for SEC Filing on Google Icon
9/9/2026Integrated Wealth Concepts LLC760$0.17M0.0%N/A0.002%Search for SEC Filing on Google Icon
9/9/2026NewEdge Advisors LLC4,236$0.96M0.0%+32.6%0.009%Search for SEC Filing on Google Icon
9/9/2026Squarepoint Ops LLC13,863$3.14M0.0%+959.9%0.029%Search for SEC Filing on Google Icon
9/8/2026Allworth Financial LP333$75K0.0%-16.8%0.001%Search for SEC Filing on Google Icon
9/8/2026Arizona State Retirement System13,615$3.09M0.0%+0.6%0.029%Search for SEC Filing on Google Icon
9/8/2026Empirical Finance LLC1,469$0.33M0.0%+4.4%0.003%Search for SEC Filing on Google Icon
9/8/2026Nykredit A S1,495$0.34M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/27/2026Corient Private Wealth LP13,579$3.08M0.0%-23.6%0.028%Search for SEC Filing on Google Icon
8/26/2026Amundi412,402$93.53M0.0%-46.7%0.864%Search for SEC Filing on Google Icon
8/26/2026HighTower Advisors LLC3,781$0.86M0.0%+5.7%0.008%Search for SEC Filing on Google Icon
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al17,000$3.86M0.0%N/A0.036%Search for SEC Filing on Google Icon
8/24/2026California State Teachers Retirement System12,895,733$2.92B0.0%+22,535.2%27.012%Search for SEC Filing on Google Icon
8/23/2026HB Wealth Management LLC2,539$0.58M0.0%-5.1%0.005%Search for SEC Filing on Google Icon
8/22/2026Raiffeisen Bank International AG6,000$1.35M0.0%+9.1%0.013%Search for SEC Filing on Google Icon
8/22/2026Knollwood Investment Advisory LLC994$0.23M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/22/2026Syon Capital LLC3,547$0.80M0.0%+2.4%0.007%Search for SEC Filing on Google Icon
8/22/2026NEOS Investment Management LLC8,444$1.92M0.0%+26.2%0.018%Search for SEC Filing on Google Icon
8/21/2026Continuum Advisory LLC134$30K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/21/2026Nykredit A S1,495$0.34M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/20/2026Montanova Capital LLC1,010$0.23M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/20/2026Quantitative Investment Management LLC5,999$1.36M0.1%N/A0.013%Search for SEC Filing on Google Icon
8/20/2026Moore Capital Management LP3,892$0.88M0.0%-91.0%0.008%Search for SEC Filing on Google Icon
8/20/2026Alyeska Investment Group L.P.235,000$53.30M0.1%-57.9%0.492%Search for SEC Filing on Google Icon
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC225,314$51.10M0.0%+2.9%0.472%Search for SEC Filing on Google Icon
8/19/2026New Mexico Educational Retirement Board2,500$0.57M0.0%+8.7%0.005%Search for SEC Filing on Google Icon
8/19/2026Mufg Securities Americas Inc.1,451$0.33M0.0%+6.5%0.003%Search for SEC Filing on Google Icon
8/19/2026Van ECK Associates Corp26,210$5.94M0.0%-28.8%0.055%Search for SEC Filing on Google Icon
8/19/2026Hsbc Holdings PLC67,802$15.36M0.0%-2.7%0.142%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP1,288,463$292.21M0.1%-20.9%2.699%Search for SEC Filing on Google Icon
8/11/2026Madison Asset Management LLC16,777$3.81M0.0%N/A0.035%Search for SEC Filing on Google Icon
8/10/2026Great Lakes Advisors LLC2,026$0.46M0.0%N/A0.004%Search for SEC Filing on Google Icon
7/14/2026Trust Asset Management LLC567$0.13M0.0%N/A0.001%Search for SEC Filing on Google Icon
7/10/2026Handelsbanken Fonder AB19,306$4.38M0.0%+36.9%0.040%Search for SEC Filing on Google Icon
7/8/2026Czech National Bank13,710$3.11M0.0%+2.3%0.028%Search for SEC Filing on Google Icon
7/8/2026PensionDanmark Pensionsforsikringsaktieselskab14,500$3.29M0.0%+5.4%0.030%Search for SEC Filing on Google Icon
7/8/2026Assenagon Asset Management S.A.61,821$14.02M0.0%+178.3%0.128%Search for SEC Filing on Google Icon
7/7/2026Trust Asset Management LLC567$0.13M0.0%N/A0.001%Search for SEC Filing on Google Icon
7/7/2026GAMMA Investing LLC3,776$0.86M0.0%+8.9%0.008%Search for SEC Filing on Google Icon
7/2/2026Versant Capital Management Inc1,963$0.45M0.0%-6.3%0.004%Search for SEC Filing on Google Icon
7/2/2026Hilltop National Bank569$0.13M0.0%+28.7%0.001%Search for SEC Filing on Google Icon
7/2/2026CX Institutional1,384$0.31M0.0%-39.4%0.003%Search for SEC Filing on Google Icon
7/1/2026Confluence Investment Management LLC91,632$20.78M0.3%-8.9%0.190%Search for SEC Filing on Google Icon
7/1/2026Miller Global Investments LLC1,837$0.42M0.3%-10.3%0.004%Search for SEC Filing on Google Icon
6/18/2026Pacer Advisors Inc.2,454$0.42M0.0%-98.4%0.005%Search for SEC Filing on Google Icon
6/16/2026Empowered Funds LLC3,137$0.54M0.0%-40.7%0.007%Search for SEC Filing on Google Icon
6/3/2026NewEdge Advisors LLC3,195$0.55M0.0%+1,119.5%0.007%Search for SEC Filing on Google Icon
5/28/2026Avidity Partners Management LP10,000$1.67M0.3%N/A0.021%Search for SEC Filing on Google Icon
5/26/2026Glenmede Trust Co. NA2,706$0.47M0.0%+2.8%0.006%Search for SEC Filing on Google Icon
5/22/2026Groupama Asset Managment2,121$0.37M0.0%-11.8%0.004%Search for SEC Filing on Google Icon
5/21/2026Groupe la Francaise494$79K0.0%-11.9%0.001%Search for SEC Filing on Google Icon
5/19/2026NewEdge Advisors LLC2,116$0.37M0.0%+707.6%0.004%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE1,135,027$195.79M0.0%+5.0%2.356%Search for SEC Filing on Google Icon
5/19/2026Edgestream Partners L.P.9,036$1.56M0.1%N/A0.019%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC22,078$3.81M0.0%-0.5%0.046%Search for SEC Filing on Google Icon
5/18/2026Amundi773,315$133.40M0.0%+175.2%1.605%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System56,972$9.83M0.0%+21.8%0.118%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada100,311$17.30M0.0%-18.9%0.208%Search for SEC Filing on Google Icon
5/18/2026Ranger Investment Management L.P.70,715$12.20M0.9%N/A0.147%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC3,137$0.54M0.0%-40.7%0.007%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company43,471$7.50M0.0%+17.4%0.090%Search for SEC Filing on Google Icon
5/16/2026Maverick Capital Ltd.8,178$1.41M0.0%N/A0.017%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP227,069$39.17M0.1%-9.1%0.471%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC22,637$3.91M0.0%+13.2%0.047%Search for SEC Filing on Google Icon
5/16/2026Castleark Management LLC39,435$6.80M0.2%+22.3%0.082%Search for SEC Filing on Google Icon
5/16/2026ABS Direct Equity Fund LLC1,000$0.17M0.1%N/A0.002%Search for SEC Filing on Google Icon
5/15/2026OMERS ADMINISTRATION Corp54,429$9.39M0.1%-7.0%0.113%Search for SEC Filing on Google Icon
5/15/2026Epoch Investment Partners Inc.6,308$1.09M0.0%-77.0%0.013%Search for SEC Filing on Google Icon
5/14/2026Healthcare of Ontario Pension Plan Trust Fund3,097$0.53M0.0%+59.2%0.006%Search for SEC Filing on Google Icon
5/14/2026Public Employees Retirement System of Ohio14,969$2.58M0.0%+2.0%0.031%Search for SEC Filing on Google Icon
5/14/2026Arrowstreet Capital Limited Partnership737,030$127.14M0.1%-11.9%1.530%Search for SEC Filing on Google Icon
5/14/2026Bank of Nova Scotia19,844$3.42M0.0%+198.0%0.041%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.757,129$130.61M0.1%+0.0%1.572%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming1,403$0.24M0.0%-61.1%0.003%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers7,028$1.21M0.0%-1.4%0.015%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP8,736$1.51M0.0%+44.5%0.018%Search for SEC Filing on Google Icon
5/12/2026Westpac Banking Corp588$0.10M0.0%-38.2%0.001%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.14,487$2.50M0.0%-9.8%0.029%Search for SEC Filing on Google Icon
5/8/2026Madison Asset Management LLC16,752$2.89M0.0%+7.2%0.034%Search for SEC Filing on Google Icon
5/7/2026Van Berkom & Associates Inc.501,152$86.45M2.9%+11.2%1.016%Search for SEC Filing on Google Icon
5/7/2026Meeder Asset Management Inc.1,917$0.33M0.0%N/A0.004%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP1,652,484$285M0.1%+14.6%3.349%Search for SEC Filing on Google Icon
5/7/2026Balefire LLC8,022$1.38M0.3%-7.1%0.016%Search for SEC Filing on Google Icon
5/7/2026KBC Group NV1,588$0.27M0.0%+16.3%0.003%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank97,300$16.78M0.0%+0.2%0.197%Search for SEC Filing on Google Icon
5/6/2026California Public Employees Retirement System88,752$15.31M0.0%+0.2%0.180%Search for SEC Filing on Google Icon
5/6/2026Kera Capital Partners Inc.2,171$0.37M0.0%-13.5%0.004%Search for SEC Filing on Google Icon
5/6/2026Assetmark Inc.52,387$9.04M0.0%+19.6%0.106%Search for SEC Filing on Google Icon
5/6/2026Bessemer Group Inc.22,953$3.96M0.0%-1.7%0.047%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC1,993,316$348.63M0.6%-0.1%4.040%Search for SEC Filing on Google Icon
5/5/2026Wealthfront Advisers LLC1,609$0.28M0.0%+17.8%0.003%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp295,913$51.05M0.0%-10.9%0.600%Search for SEC Filing on Google Icon
5/5/2026Illinois Municipal Retirement Fund4,485$0.77M0.0%N/A0.009%Search for SEC Filing on Google Icon
5/5/2026Sanctuary Advisors LLC4,041$0.70M0.0%-30.9%0.008%Search for SEC Filing on Google Icon
5/4/2026State of Michigan Retirement System12,830$2.21M0.0%-0.8%0.026%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.56,182$9.69M0.0%-53.0%0.114%Search for SEC Filing on Google Icon
5/4/2026Chicago Partners Investment Group LLC2,167$0.40M0.0%-16.0%0.004%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Charles River Laboratories International logo
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.
Read More on Charles River Laboratories International

Today's Range

Now: $278.02
Low: $275.63
High: $280.40

50 Day Range

MA: $259.22
Low: $218.44
High: $298.76

52 Week Range

Now: $278.02
Low: $144.26
High: $303.30

Volume

767,555 shs

Average Volume

917,297 shs

Market Capitalization

$13.27 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.4

Who are the company insiders with the largest holdings of Charles River Laboratories International?

Charles River Laboratories International's top insider investors include:
  1. James C Foster (CEO)
  2. James C Foster (Chairman)
  3. James Foster (CEO)
  4. David P Johst (Insider)
  5. James C Foster (CEO)
  6. David P Johst (VP)
  7. David Johst (VP)
  8. Thomas Ackerman (CFO)
  9. Thomas F Ackerman (Insider)
  10. Davide Molho (VP)
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:
  1. California State Teachers Retirement System — 27.01%
  2. Wellington Management Group LLP — 2.70%
  3. Amundi — 0.86%
  4. Alyeska Investment Group L.P. — 0.49%
  5. UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC — 0.47%
  6. Confluence Investment Management LLC — 0.19%
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:
  1. Amundi
  2. Wellington Management Group LLP
  3. Alyeska Investment Group L.P.
  4. Engineers Gate Manager LP
  5. Moore Capital Management LP
  6. Van ECK Associates Corp
  7. Confluence Investment Management LLC
  8. Corient Private Wealth LP
In the last year, company insiders that have sold Charles River Laboratories International company stock include:
  1. Birgit Girshick (CEO)
  2. James C Foster (Director)
  3. Victoria L Creamer (EVP)
  4. Michael Gunnar Knell (CAO)
  5. Shannon M Parisotto (EVP)
  6. Nancy C Andrews (Director)
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:
  1. California State Teachers Retirement System
  2. Assenagon Asset Management S.A.
  3. VIRGINIA RETIREMENT SYSTEMS ET Al
  4. Madison Asset Management LLC
  5. Squarepoint Ops LLC
  6. UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
  7. Quantitative Investment Management LLC
  8. Handelsbanken Fonder AB
During the last year, these company insiders have bought Charles River Laboratories International stock:
  1. James C Foster (CEO)
  2. Birgit Girshick (COO)
Learn More investors buying Charles River Laboratories International stock.

Charles River Laboratories International Active Insiders

James C. Foster
James C. Foster (Age 74)
CEO
3 recent trades
David Ross Smith (Age 60)
CFO
Michael Gunnar Knell
Michael Gunnar Knell (Age 49)
CAO
1 recent trades
George Massaro
George Massaro
Director
Deborah Turner Kochevar
Deborah Turner Kochevar
Director
Robert J Bertolini
Robert J Bertolini
Director
Stephen D Chubb
Stephen D Chubb
Director
Richard F Wallman
Richard F Wallman
Director
Victoria L. Creamer
Victoria L. Creamer
EVP
1 recent trades
Joseph W Laplume
Joseph W Laplume
EVP
Shannon M Parisotto
Shannon M Parisotto
EVP
3 recent trades
Birgit Girshick
Birgit Girshick (Age 55)
VP
1 recent trades
William D. Barbo
William D. Barbo (Age 64)
VP