$337M | ||
$259M | ||
$79M | ||
$76M | ||
$60M | ||
$57M |
Buys | $1,251,686 | 2 | 22 |
Sells | $9,078,947 | 7 | 78 |
FOSTER JAMES C | Chairman, President and CEO | 1 | $1M | 1 | $6.25M | $-5.25M |
Girshick Birgit | Corporate Executive VP & COO | 1 | $249,250 | 0 | $0 | $249,250 |
MASSARO GEORGE | director | 0 | $0 | 2 | $38,963 | $-38,963 |
LaPlume Joseph W | EVP, Corp Strategy & Develop | 0 | $0 | 3 | $1.14M | $-1.14M |
WALLMAN RICHARD F | director | 0 | $0 | 1 | $1.65M | $-1.65M |
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.
Over the last 12 months, insiders at Charles River Laboratories International, Inc. have bought $1.25M and sold $9.08M worth of Charles River Laboratories International, Inc. stock.
On average, over the past 5 years, insiders at Charles River Laboratories International, Inc. have bought $1.27M and sold $27.76M worth of stock each year.
Highest buying activity among insiders over the last 12 months: FOSTER JAMES C (Chairman, President and CEO) — $1M. Girshick Birgit (Corporate Executive VP & COO) — $249,250.
The last purchase of 1,514 shares for transaction amount of $249,250 was made by Girshick Birgit (Corporate Executive VP & COO) on 2025‑02‑20.
2025-05-15 | Sale | MASSARO GEORGE | director | 140 0.0003% | $137.57 | $19,260 | +2.60% | |
2025-05-14 | Sale | MASSARO GEORGE | director | 140 0.0003% | $140.74 | $19,703 | -0.45% | |
2025-05-13 | Sale | LaPlume Joseph W | EVP, Corp Strategy & Develop | 500 0.001% | $145.41 | $72,705 | -2.30% | |
2025-02-20 | Sale | LaPlume Joseph W | EVP, Corp Strategy & Develop | 4,400 0.0085% | $162.50 | $715,000 | -11.75% | |
2025-02-20 | FOSTER JAMES C | Chairman, President and CEO | 6,075 0.0119% | $165.01 | $1M | -11.75% | ||
2025-02-20 | Girshick Birgit | Corporate Executive VP & COO | 1,514 0.003% | $164.63 | $249,250 | -11.75% | ||
2024-11-07 | Sale | WALLMAN RICHARD F | director | 7,621 0.0151% | $216.17 | $1.65M | -20.93% | |
2024-08-08 | Sale | LaPlume Joseph W | EVP, Corp Strategy & Develop | 1,780 0.0034% | $199.36 | $354,861 | -8.88% | |
2024-08-01 | Sale | FOSTER JAMES C | Chairman, President and CEO | 25,000 0.05% | $250.00 | $6.25M | -23.58% | |
2024-05-15 | Sale | MASSARO GEORGE | director | 332 0.0007% | $235.62 | $78,225 | -18.17% | |
2024-05-10 | Sale | LaPlume Joseph W | EVP, Corp Strategy & Develop | 1,304 0.0025% | $226.97 | $295,969 | -16.08% | |
2024-03-08 | Sale | Knell Michael Gunnar | CSVP&Chief Accounting Officer | 808 0.0016% | $267.52 | $216,156 | -24.55% | |
2024-03-04 | Sale | Knell Michael Gunnar | CSVP&Chief Accounting Officer | 2,750 0.0054% | $261.05 | $717,890 | -22.04% | |
2024-02-29 | Sale | Creamer Victoria L | EVP & Chief People Officer | 5,000 0.0097% | $253.70 | $1.27M | -20.53% | |
2024-02-29 | Sale | Parisotto Shannon M | CEVP, Disc & Safety Assessment | 3,786 0.0073% | $253.45 | $959,545 | -20.53% | |
2024-02-22 | Sale | Barbo William D | Corporate Executive VP & CCO | 4,050 0.0079% | $248.50 | $1.01M | -17.67% | |
2024-02-15 | Sale | LaPlume Joseph W | EVP, Corp Strategy & Develop | 838 0.0016% | $238.93 | $200,223 | -16.91% | |
2024-02-15 | Sale | Parisotto Shannon M | CEVP, Disc & Safety Assessment | 5,882 0.0113% | $241.20 | $1.42M | -16.91% | |
2023-12-14 | Sale | Creamer Victoria L | EVP & Chief People Officer | 5,526 0.0106% | $225.00 | $1.24M | -6.43% | |
2023-11-30 | Sale | LaPlume Joseph W | EVP, Corp Strategy & Develop | 1,850 0.0036% | $197.73 | $365,801 | +9.19% |
FOSTER JAMES C | Chairman, President and CEO | 183639 0.3739% | $25.89M | 7 | 84 | +6.87% |
Girshick Birgit | Corporate Executive VP & COO | 55058 0.1121% | $7.76M | 2 | 13 | +12.84% |
LaPlume Joseph W | EVP, Corp Strategy & Develop | 19513 0.0397% | $2.75M | 0 | 22 | |
MASSARO GEORGE | director | 5575 0.0114% | $785,907.75 | 0 | 34 | |
WALLMAN RICHARD F | director | 0 0% | $0 | 4 | 13 | +7.48% |
CAWTHORN ROBERT | director | 286700 0.5837% | $40.42M | 0 | 2 | |
JOHST DAVID P | Corporate Executive VP | 212854 0.4334% | $30.01M | 0 | 28 | |
NIMMO WALTER S | director | 149447 0.3043% | $21.07M | 0 | 5 | |
ACKERMAN THOMAS F | 111698 0.2274% | $15.75M | 0 | 41 | ||
RENAUD REAL H | Corp. Executive VP | 63586 0.1295% | $8.96M | 0 | 12 | |
REESE C RICHARD | director | 56457 0.1149% | $7.96M | 0 | 4 | |
CHUBB STEPHEN D | director | 40529 0.0825% | $5.71M | 0 | 40 | |
SHAUGHNESSY DENNIS R | Sr. VP Corporate Development | 37761 0.0769% | $5.32M | 0 | 3 | |
BERTOLINI ROBERT J | director | 29134 0.0593% | $4.11M | 0 | 5 | |
MILNE GEORGE M JR | director | 28417 0.0579% | $4.01M | 0 | 10 | |
Smith David Ross | Corporate Executive VP & CFO | 27064 0.0551% | $3.82M | 0 | 28 | |
Barbo William D | Corporate Executive VP & CCO | 22879 0.0466% | $3.23M | 0 | 13 | |
WALTRIP WILLIAM | director | 21830 0.0444% | $3.08M | 0 | 5 | |
Molho Davide | President & COO | 17155 0.0349% | $2.42M | 0 | 20 | |
BATHGATE BRIAN | Corporate Vice President | 16134 0.0328% | $2.27M | 0 | 8 | |
BERTHOUX CHRISTOPHER | Corp Sr VP | 15047 0.0306% | $2.12M | 0 | 7 | |
THIER SAMUEL O MD | director | 14190 0.0289% | $2M | 0 | 17 | |
GELLER JORG | Corporate Executive VP | 14094 0.0287% | $1.99M | 0 | 26 | |
Creamer Victoria L | EVP & Chief People Officer | 13550 0.0276% | $1.91M | 0 | 3 | |
URQUHART JOHN | director | 11738 0.0239% | $1.65M | 0 | 2 | |
ELLIOTT DAVID J | Officer | 11750 0.0239% | $1.66M | 0 | 1 | |
GILLETT NANCY | Corporate Executive VP | 11034 0.0225% | $1.56M | 1 | 41 | +0.49% |
Ho John C | Senior Vice President | 8950 0.0182% | $1.26M | 1 | 0 | +15.04% |
Knell Michael Gunnar | CSVP&Chief Accounting Officer | 7825 0.0159% | $1.1M | 0 | 8 | |
Kochevar Deborah Turner | director | 6096 0.0124% | $859,353.12 | 0 | 10 | |
Crowley John J | SVP, Chief Accounting Officer | 5883 0.012% | $829,326.51 | 0 | 3 | |
ROGERS DOUGLAS E | director | 5349 0.0109% | $754,048.53 | 0 | 1 | |
Parisotto Shannon M | CEVP, Disc & Safety Assessment | 4792 0.0098% | $675,528.24 | 0 | 4 | |
ANKCORN MICHAEL F | Corp. Sr. VP | 0 0% | $0 | 0 | 3 | |
MCEWAN ALASTAIR STUART | Corporate VP | 0 0% | $0 | 0 | 3 |
Increased Positions | 288 | +37.16% | 8M | +14.67% |
Decreased Positions | 351 | -45.29% | 7M | -13.48% |
New Positions | 82 | New | 2M | New |
Sold Out Positions | 101 | Sold Out | 1M | Sold Out |
Total Postitions | 712 | -8.13% | 53M | +1.19% |
Vanguard Group Inc | $729,586.00 | 12.57% | 6.16M | +60,497 | +0.99% | 2024-12-31 |
Wellington Management Group Llp | $482,893.00 | 8.32% | 4.08M | +335,658 | +8.97% | 2024-12-31 |
Blackrock, Inc. | $434,846.00 | 7.49% | 3.67M | -561,345 | -13.26% | 2025-03-31 |
State Street Corp | $258,412.00 | 4.45% | 2.18M | +51,151 | +2.4% | 2024-12-31 |
Mackenzie Financial Corp | $231,488.00 | 3.99% | 1.95M | +982,878 | +101.19% | 2024-12-31 |
Kayne Anderson Rudnick Investment Management Llc | $213,884.00 | 3.69% | 1.81M | -134,284 | -6.92% | 2024-12-31 |
Allspring Global Investments Holdings, Llc | $210,220.00 | 3.62% | 1.77M | -33,397 | -1.85% | 2025-03-31 |
Geode Capital Management, Llc | $146,086.00 | 2.52% | 1.23M | +14,787 | +1.21% | 2024-12-31 |
Impactive Capital Lp | $142,429.00 | 2.45% | 1.2M | +825,951 | +219.44% | 2024-12-31 |
Meritage Group Lp | $127,240.00 | 2.19% | 1.07M | -111,047 | -9.37% | 2024-12-31 |