CHARLES RIVER LABORATORIES INTERNATIONAL, INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Knell Michael Gunnar | CSVP, CAO, Interim CFO | Award / Grant | 2,926 | $170.88 | $499,995 | 13,460 | Nov 6, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Sale | 800 | $157.60 | $126,080 | 24,116 | Aug 18, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Sale | 400 | $150.04 | $60,016 | 24,916 | Aug 7, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Gift | 385 | — | — | 25,316 | Jun 5, 2025 |
| Ceesay Abraham | — | Award / Grant | 946 | $135.04 | $127,748 | 946 | Jun 2, 2025 |
| Enyedy Mark J | — | Award / Grant | 946 | $135.04 | $127,748 | 946 | Jun 2, 2025 |
| Graves Paul W | — | Award / Grant | 946 | $135.04 | $127,748 | 946 | Jun 2, 2025 |
| Barg Steven | — | Award / Grant | 946 | $135.04 | $127,748 | 1,427 | Jun 2, 2025 |
| Parisotto Shannon M | CEVP, Disc & Safety Assessment | Award / Grant | 5,603 | $135.63 | $759,935 | 13,102 | May 31, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Award / Grant | 6,709 | $135.63 | $909,942 | 25,856 | May 31, 2025 |
| Knell Michael Gunnar | CSVP&Chief Accounting Officer | Award / Grant | 2,064 | $135.63 | $279,940 | 10,807 | May 31, 2025 |
| Girshick Birgit | Corporate Executive VP & COO | Award / Grant | 12,239 | $135.63 | $1,659,976 | 66,227 | May 31, 2025 |
| Creamer Victoria L | EVP & Chief People Officer | Award / Grant | 6,252 | $135.63 | $847,959 | 22,482 | May 31, 2025 |
| Pease Flavia | Corporate Executive VP & CFO | Tax Withholding | 185 | $135.63 | $25,092 | 17,297 | May 30, 2025 |
| FOSTER JAMES C | Chairman, President and CEO | Award / Grant | 17,253 | $135.63 | $2,340,024 | 210,685 | May 30, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Tax Withholding | 161 | $136.73 | $22,014 | 19,352 | May 28, 2025 |
| Girshick Birgit | Corporate Executive VP & COO | Tax Withholding | 281 | $136.73 | $38,421 | 54,347 | May 28, 2025 |
| Parisotto Shannon M | CEVP, Disc & Safety Assessment | Tax Withholding | 44 | $138.65 | $6,101 | 7,499 | May 27, 2025 |
| Knell Michael Gunnar | CSVP&Chief Accounting Officer | Tax Withholding | 25 | $138.65 | $3,466 | 8,743 | May 27, 2025 |
| Pease Flavia | Corporate Executive VP & CFO | Tax Withholding | 141 | $136.73 | $19,279 | 10,330 | May 26, 2025 |
| Creamer Victoria L | EVP & Chief People Officer | Tax Withholding | 91 | $136.73 | $12,442 | 16,292 | May 26, 2025 |
| Thompson Craig B. | — | Award / Grant | 946 | $134.98 | $127,691 | 2,413 | May 21, 2025 |
| Llado George Sr. | — | Award / Grant | 519 | $134.98 | $70,055 | 4,814 | May 21, 2025 |
| MACKAY MARTIN | — | Award / Grant | 946 | $134.98 | $127,691 | 13,477 | May 21, 2025 |
| Kemps-Polanco Reshema | — | Award / Grant | 946 | $134.98 | $127,691 | 1,960 | May 21, 2025 |
| WILSON VIRGINIA M | — | Award / Grant | 946 | $134.98 | $127,691 | 4,911 | May 21, 2025 |
| Andrews Nancy C | — | Award / Grant | 946 | $134.98 | $127,691 | 3,964 | May 21, 2025 |
| MASSARO GEORGE | — | Sale | 24 | $139.05 | $3,337 | 5,575 | May 15, 2025 |
| MASSARO GEORGE | — | Sale | 7 | $145.54 | $1,019 | 5,715 | May 14, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Sale | 500 | $145.41 | $72,705 | 19,513 | May 13, 2025 |
| Pease Flavia | Corporate Executive VP & CFO | Tax Withholding | 889 | $116.89 | $103,915 | 10,661 | May 2, 2025 |
| Girshick Birgit | Corporate Executive VP & COO | Gift | 430 | — | — | 54,628 | Feb 25, 2025 |
| FOSTER JAMES C | Chairman, President and CEO | Purchase | 6,075 | $165.01 | $1,002,436 | 183,639 | Feb 20, 2025 |
| Girshick Birgit | Corporate Executive VP & COO | Purchase | 1,514 | $164.63 | $249,250 | 55,058 | Feb 20, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Sale | 4,400 | $162.50 | $715,000 | 20,013 | Feb 20, 2025 |
| Pease Flavia | Corporate Executive VP & CFO | Tax Withholding | 914 | $165.57 | $151,331 | 11,550 | Jan 31, 2025 |
| FOSTER JAMES C | Chairman, President and CEO | Tax Withholding | 6,827 | $165.57 | $1,130,346 | 197,564 | Jan 31, 2025 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Award / Grant | 2,738 | — | — | 25,259 | Jan 31, 2025 |
| Parisotto Shannon M | CEVP, Disc & Safety Assessment | Tax Withholding | 471 | $165.57 | $77,983 | 8,999 | Jan 31, 2025 |
| Knell Michael Gunnar | CSVP&Chief Accounting Officer | Award / Grant | 811 | — | — | 9,137 | Jan 31, 2025 |
| Creamer Victoria L | EVP & Chief People Officer | Award / Grant | 2,468 | — | — | 17,297 | Jan 31, 2025 |
| Girshick Birgit | Corporate Executive VP & COO | Award / Grant | 4,057 | — | — | 54,569 | Jan 31, 2025 |
| FOSTER JAMES C | Chairman, President and CEO | Gift | 4,500 | — | — | 184,783 | Nov 8, 2024 |
| WALLMAN RICHARD F | — | Gift | 4,540 | — | — | 19,007 | Nov 7, 2024 |
| Barbo William D | Corporate Executive VP & CCO | Gift | 470 | — | — | 23,337 | Nov 7, 2024 |
| FOSTER JAMES C | Chairman, President and CEO | Gift | 2,500 | — | — | 185,751 | Aug 12, 2024 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Sale | 1,780 | $199.36 | $354,861 | 22,521 | Aug 8, 2024 |
| FOSTER JAMES C | Chairman, President and CEO | Sale | 25,000 | $250.00 | $6,250,000 | 188,251 | Aug 1, 2024 |
| LaPlume Joseph W | EVP, Corp Strategy & Develop | Gift | 311 | — | — | 24,301 | Jun 3, 2024 |
| Parisotto Shannon M | CEVP, Disc & Safety Assessment | Award / Grant | 1,727 | — | — | 8,406 | May 31, 2024 |