Joseph W. LaPlume, EVP of Corporate Strategy and Development at Charles River Laboratories International ($CRL), made one open-market purchase of CRL stock in the last year, totaling $4,364, with the most recent on March 3, 2026. This ranks 4,633rd among 4,983 insiders, well below the average of $1.5 million per buyer across 3 transactions. He sold CRL shares four times for $324 thousand total, most recently on August 22, 2025, ranking 7,396th out of 11,678 insiders versus an average of $8.6 million across 6 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 3, 2026 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | P | Common Stock | 25 | $174.54 | 27,448.0000 | 49,217,000 | 0.09% | 0.00% |
| Jan. 30, 2026 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 5456 | $0.00 | 29,172.0000 | 49,217,000 | 23.01% | 0.01% |
| Jan. 30, 2026 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 1749 | $211.68 | 27,423.0000 | 49,217,000 | 6.00% | 0.00% |
| Aug. 22, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 400 | $163.72 | 23,716.0000 | 51,344,000 | 1.66% | 0.00% |
| Aug. 18, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 800 | $157.60 | 24,116.0000 | 51,344,000 | 3.21% | 0.00% |
| Aug. 7, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 400 | $150.04 | 24,916.0000 | 51,344,000 | 1.58% | 0.00% |
| June 5, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | G | Common Stock | 385 | $0.00 | 25,316.0000 | 51,201,000 | 1.50% | 0.00% |
| May 31, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 155 | $135.63 | 25,701.0000 | 51,201,000 | 0.60% | 0.00% |
| May 30, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 6709 | $135.63 | 25,856.0000 | 51,201,000 | 35.04% | 0.01% |
| May 28, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 83 | $138.65 | 19,147.0000 | 51,201,000 | 0.43% | 0.00% |
| May 27, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 122 | $136.73 | 19,230.0000 | 51,201,000 | 0.63% | 0.00% |
| May 26, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 161 | $136.73 | 19,352.0000 | 51,201,000 | 0.83% | 0.00% |
| May 13, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 500 | $145.41 | 19,513.0000 | 51,201,000 | 2.50% | 0.00% |
| Feb. 20, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 4400 | $162.50 | 20,013.0000 | 51,141,000 | 18.02% | 0.01% |
| Jan. 31, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 2738 | $0.00 | 25,259.0000 | 51,141,000 | 12.16% | 0.01% |
| Jan. 31, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 846 | $165.57 | 24,413.0000 | 51,141,000 | 3.35% | 0.00% |
| Aug. 8, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 1780 | $199.36 | 22,521.0000 | 51,696,000 | 7.32% | 0.00% |
| June 3, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | G | Common Stock | 311 | $0.00 | 24,301.0000 | 51,552,000 | 1.26% | 0.00% |
| May 31, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 2111 | $0.00 | 24,612.0000 | 51,552,000 | 9.38% | 0.00% |
| May 31, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Stock Options (Right to Buy) | 4797 | $208.44 | 4,797.0000 | 51,552,000 | 9999.99% | 0.01% |
| May 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 223 | $214.51 | 22,501.0000 | 51,552,000 | 0.98% | 0.00% |
| May 27, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 184 | $217.21 | 22,849.0000 | 51,552,000 | 0.80% | 0.00% |
| May 28, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 125 | $217.21 | 22,724.0000 | 51,552,000 | 0.55% | 0.00% |
| May 26, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 243 | $217.21 | 23,033.0000 | 51,552,000 | 1.04% | 0.00% |
| May 10, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 1304 | $226.97 | 23,276.0000 | 51,552,000 | 5.31% | 0.00% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 3279 | $0.00 | 26,412.0000 | 51,338,000 | 14.17% | 0.01% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 994 | $220.28 | 25,418.0000 | 51,338,000 | 3.76% | 0.00% |
| Feb. 15, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 838 | $238.93 | 24,620.0000 | 51,338,000 | 3.29% | 0.00% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 1025 | $220.28 | 25,458.0000 | 51,338,000 | 3.87% | 0.00% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 3350 | $0.00 | 26,483.0000 | 51,338,000 | 14.48% | 0.01% |
| Nov. 30, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 1850 | $197.73 | 23,133.0000 | 50,944,000 | 7.41% | 0.00% |
| Nov. 9, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 6543 | $173.76 | 24,983.0000 | 50,944,000 | 20.75% | 0.01% |
| Nov. 9, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | M | Stock Options (Right to Buy) | 9128 | $0.00 | 0.0000 | 50,944,000 | 100.00% | 0.02% |
| Nov. 9, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | M | Common Stock | 9128 | $144.67 | 34,111.0000 | 50,944,000 | 36.54% | 0.02% |
| Nov. 9, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 2585 | $172.77 | 31,526.0000 | 50,944,000 | 7.58% | 0.01% |
| Aug. 10, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 700 | $216.52 | 24,983.0000 | 50,944,000 | 2.73% | 0.00% |
| May 28, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 125 | $194.12 | 25,906.0000 | 50,944,000 | 0.48% | 0.00% |
| May 29, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 223 | $194.12 | 25,683.0000 | 50,944,000 | 0.86% | 0.00% |
| May 26, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Stock Options (Right to Buy) | 5252 | $194.12 | 5,252.0000 | 50,944,000 | 9999.99% | 0.01% |
| May 26, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 2189 | $0.00 | 26,215.0000 | 50,944,000 | 9.11% | 0.00% |
| May 27, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 184 | $194.12 | 26,031.0000 | 50,944,000 | 0.70% | 0.00% |
| May 15, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 345 | $190.39 | 24,026.0000 | 50,944,000 | 1.42% | 0.00% |
| May 12, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 9 | $194.07 | 24,371.0000 | 50,944,000 | 0.04% | 0.00% |
| May 12, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | S | Common Stock | 950 | $193.02 | 24,380.0000 | 50,944,000 | 3.75% | 0.00% |
| Feb. 22, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 317 | $243.60 | 25,330.0000 | 50,944,000 | 1.24% | 0.00% |
| Jan. 27, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | A | Common Stock | 8676 | $0.00 | 28,908.0000 | 50,944,000 | 42.88% | 0.02% |
| Jan. 27, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | LaPlume Joseph W | EVP, Corp Strategy & Develop | F | Common Stock | 3261 | $244.29 | 25,647.0000 | 50,944,000 | 11.28% | 0.01% |