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Charles River Laboratories International, Inc.

CRL
Exchange
NYSE
Industry
Services-Commercial Physical & Biological Research
SEC CIK
0001100682

In the last 90 days, Charles River Laboratories International, Inc. insiders filed 0 open-market purchases and 10 sales; 569 institutions reported holding it in 13F filings for Q2 2026, worth $12.9B in total; Harris Associates (Oakmark) is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Charles River Laboratories International, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
10 filings
6 insiders, $42.6M in total
Insiders trading
6
Net value
−$42.6M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Charles River Laboratories International, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Charles River Laboratories International, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Foster James CDirector31,596Aug 27, 20268
Girshick BirgitChief Executive Officer35,485Aug 20, 20267
Parisotto Shannon MCEVP, Disc & Safety Assessment4,807Aug 20, 20267
Andrews Nancy CDirector1,438Aug 20, 20263
LaPlume Joseph WEVP, Corp Strategy & Develop31,041Aug 11, 20266
Knell Michael GunnarSVP, Finance and CAO11,852Aug 10, 20265
Creamer Victoria LEVP & Chief People Officer30,051Aug 10, 20264
Barg StevenDirector3,287Jun 3, 20262
Coleman GlennEVP & Chief Financial Officer27,752Jun 2, 20262
Mintz MarkEVP, Chief Information Officer9,546Jun 2, 20263
Thompson Craig B.Director3,851May 12, 20261
Graves Paul WDirector2,384May 12, 20261
Wilson Virginia MDirector6,349May 11, 20261
Mackay MartinDirector17,137May 11, 20261
Enyedy Mark JDirector2,384May 11, 20261
Ceesay AbrahamDirector2,384May 11, 20261
Llado George Sr.Director6,702May 11, 20261
Kemps-Polanco ReshemaDirector4,563May 11, 20261
Pease FlaviaCorporate Executive VP & CFO17,297Jun 3, 20250
Massaro GeorgeDirector5,575May 16, 20250
Wallman Richard FDirector0IndirectNov 12, 20240
Barbo William DCorporate Executive VP & CCO23,337IndirectNov 8, 20240
Bertolini Robert JDirector32,802May 15, 20240
Kochevar Deborah TurnerDirector7,894May 15, 20240
Reese C RichardDirector65,541May 17, 20230
Smith David RossCorporate Executive VP & CFO25,819Mar 4, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 27, 2026 (view filing)4:21 PM ETAug 252 daysFoster James CDirectorSSale−33.6K$300.00−$10.1M−51.5%31.6K after10b5-1
Aug 20, 2026 (view filing)4:33 PM ETAug 191 dayParisotto Shannon MCEVP, Disc & Safety AssessmentSSale−2.04K$294.12−$599.7K−29.8%4.81K after10b5-1
Aug 20, 2026 (view filing)4:31 PM ETAug 182 daysAndrews Nancy CDirectorSSale−573$285.24−$163.4K−28.5%1.44K after
Aug 13, 2026 (view filing)4:37 PM ETAug 112 daysGirshick BirgitChief Executive OfficerSSale−6.50K$279.90−$1.82M−15.3%36.0K after10b5-1
Aug 13, 2026 (view filing)4:34 PM ETAug 112 daysParisotto Shannon MCEVP, Disc & Safety AssessmentSSale−3.71K$279.66−$1.04M−43.6%4.81K after10b5-1
Aug 11, 2026 (view filing)4:35 PM ETAug 101 dayFoster James CDirectorSSale−28.7K$275.00−$7.90M−47.6%31.6K after10b5-1
Aug 10, 2026 (view filing)4:40 PM ETAug 64 daysKnell Michael GunnarSVP, Finance and CAOSSale−6.64K$260.38−$1.73M−35.9%11.9K after9 lots
Aug 10, 2026 (view filing)4:35 PM ETAug 64 daysCreamer Victoria LEVP & Chief People OfficerSSale−4.18K$259.16−$1.08M−12.2%30.1K after
Aug 6, 2026 (view filing)4:49 PM ETAug 51 dayParisotto Shannon MCEVP, Disc & Safety AssessmentSSale−5.05K$263.00−$1.33M−51.2%4.81K after10b5-1
Jul 1, 2026 (view filing)4:59 PM ETJun 292 daysFoster James CDirectorSSale−75.0K$225.00−$16.9M−70.4%31.6K after10b5-1
Mar 4, 2026 (view filing)Mar 31 dayLaPlume Joseph WEVP, Corp Strategy & DevelopPPurchase+25$174.54+$4.36K+0.1%27.4K after
Jan 20, 2026 (view filing)Aug 22, 2025151 daysLateLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−400$163.72−$65.5K−1.7%23.7K after
Aug 20, 2025 (view filing)Aug 182 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−800$157.60−$126.1K−3.2%24.1K after
Aug 8, 2025 (view filing)Aug 71 dayLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−400$150.04−$60.0K−1.6%24.9K after
May 16, 2025 (view filing)May 151 dayMassaro GeorgeDirectorSSale−140$137.57−$19.3K−2.4%5.58K after3 lots10b5-1
May 15, 2025 (view filing)May 141 dayMassaro GeorgeDirectorSSale−140$140.74−$19.7K−2.4%5.71K after5 lots10b5-1
May 15, 2025 (view filing)May 132 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−500$145.41−$72.7K−2.5%19.5K after
Feb 21, 2025 (view filing)Feb 201 dayFoster James CChairman, President and CEOPPurchase+6.08K$165.01+$1.00M+3.4%183.6K after
Feb 21, 2025 (view filing)Feb 201 dayGirshick BirgitCorporate Executive VP & COOPPurchase+1.51K$164.63+$249.2K+2.8%55.1K after
Feb 21, 2025 (view filing)Feb 201 dayLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−4.40K$162.50−$715.0K−18.0%20.0K after
Nov 12, 2024 (view filing)Nov 75 daysWallman Richard FDirectorSSale−6.62K$216.12−$1.43M−34.8%12.4K after2 lots
Nov 12, 2024 (view filing)Nov 75 daysWallman Richard FDirectorSSale−1.00K$216.50−$216.5K−100.0%0 after
Aug 12, 2024 (view filing)Aug 84 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−1.78K$199.36−$354.9K−7.3%22.5K after
Aug 5, 2024 (view filing)Aug 14 daysFoster James CChairman, President and CEOSSale−25.0K$250.00−$6.25M−11.7%188.3K after10b5-1
May 29, 2024 (view filing)Mar 882 daysKnell Michael GunnarCSVP&Chief Accounting OfficerSSale−808$267.52−$216.2K−9.4%7.83K afterAmended
May 16, 2024 (view filing)May 151 dayMassaro GeorgeDirectorSSale−332$235.62−$78.2K−5.4%5.86K after3 lots10b5-1
May 14, 2024 (view filing)May 104 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−1.30K$226.97−$296.0K−5.3%23.3K after
Mar 5, 2024 (view filing)Mar 41 dayKnell Michael GunnarCSVP&Chief Accounting OfficerSSale−2.75K$261.05−$717.9K−26.0%7.83K after2 lots
Mar 4, 2024 (view filing)Feb 294 daysParisotto Shannon MCEVP, Disc & Safety AssessmentSSale−3.79K$253.45−$959.5K−34.7%7.13K after2 lots
Mar 1, 2024 (view filing)Feb 291 dayCreamer Victoria LEVP & Chief People OfficerSSale−5.00K$253.70−$1.27M−27.0%13.6K after
Feb 23, 2024 (view filing)Feb 221 dayBarbo William DCorporate Executive VP & CCOSSale−4.05K$248.50−$1.01M−15.0%22.9K after
Feb 20, 2024 (view filing)Feb 155 daysParisotto Shannon MCEVP, Disc & Safety AssessmentSSale−5.88K$241.20−$1.42M−69.4%2.60K after8 lots10b5-1
Feb 20, 2024 (view filing)Feb 155 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−838$238.93−$200.2K−3.3%24.6K after
Dec 18, 2023 (view filing)Dec 144 daysCreamer Victoria LEVP & Chief People OfficerSSale−5.53K$225.00−$1.24M−25.1%16.5K after10b5-1
Dec 1, 2023 (view filing)Nov 301 dayLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−1.85K$197.73−$365.8K−7.4%23.1K after
Nov 21, 2023 (view filing)Nov 201 dayGirshick BirgitCorporate Executive VP & COOPPurchase+1.32K$187.82+$248.3K+3.1%44.4K after
Nov 15, 2023 (view filing)Nov 141 dayFoster James CChairman, President and CEOPPurchase+5.62K$178.05+$1.00M+2.9%202.6K after
Nov 13, 2023 (view filing)Nov 94 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−9.13K$173.48−$1.58M−26.8%25.0K after2 lots
Aug 29, 2023 (view filing)Aug 245 daysLateWallman Richard FDirectorPPurchase+1.00K$198.79+$198.8KNew position1.00K after
Aug 14, 2023 (view filing)Aug 104 daysBarbo William DCorporate Executive VP & CCOSSale−5.76K$217.24−$1.25M−61.6%3.59K after
Aug 14, 2023 (view filing)Aug 104 daysKnell Michael GunnarCSVP&Chief Accounting OfficerSSale−1.47K$216.54−$318.5K−12.9%9.94K after
Aug 14, 2023 (view filing)Aug 104 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−700$216.52−$151.6K−2.7%25.0K after
May 16, 2023 (view filing)May 151 dayLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−345$190.39−$65.7K−1.4%24.0K after
May 15, 2023 (view filing)May 123 daysLaPlume Joseph WEVP, Corp Strategy & DevelopSSale−959$193.03−$185.1K−3.8%24.4K after2 lots
May 15, 2023 (view filing)May 114 daysMassaro GeorgeDirectorSSale−288$193.43−$55.7K−5.5%4.96K after10b5-1
Feb 24, 2023 (view filing)Feb 231 dayWallman Richard FDirectorPPurchase+1.75K$220.73+$386.3K+8.7%21.9K after
Feb 21, 2023 (view filing)Feb 165 daysParisotto Shannon MCEVP, Disc & Safety AssessmentSSale−4.56K$254.41−$1.16M−43.1%6.01K after10 lots
Feb 17, 2023 (view filing)Feb 161 dayGirshick BirgitCorporate Executive VP & COOSSale−3.21K$254.39−$815.3K−7.2%41.0K after10 lots
Feb 17, 2023 (view filing)Feb 152 daysFoster James CChairman, President and CEOSSale−20.0K$250.00−$5.00M−8.5%216.6K after2 lots
Dec 6, 2022 (view filing)Dec 24 daysWallman Richard FDirectorPPurchase+1.50K$218.90+$328.4K+8.1%20.1K after