Knell Michael Gunnar has filed 39 insider transactions across 1 company since January 2023.
Most recent transaction: a tax payment of 526 shares of CHARLES RIVER LABORATORIES INTERNATIONAL, INC. ($CRL) on January 30, 2026.
Activity breakdown: 0 open-market purchases and 5 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 30, 2026 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP, CAO, Interim CFO | F | Common Stock | 526 | $211.68 | 14,602.0000 | 49,217,000 | 3.48% | 0.00% |
| Jan. 30, 2026 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP, CAO, Interim CFO | A | Common Stock | 1668 | $0.00 | 15,128.0000 | 49,217,000 | 12.39% | 0.00% |
| Nov. 6, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP, CAO, Interim CFO | A | Common Stock | 2926 | $170.88 | 13,460.0000 | 51,351,000 | 27.78% | 0.01% |
| May 30, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 2064 | $135.63 | 10,807.0000 | 51,201,000 | 23.61% | 0.00% |
| May 31, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 48 | $135.63 | 10,759.0000 | 51,201,000 | 0.44% | 0.00% |
| June 1, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 225 | $135.63 | 10,534.0000 | 51,201,000 | 2.09% | 0.00% |
| May 27, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 37 | $136.73 | 8,768.0000 | 51,201,000 | 0.42% | 0.00% |
| May 28, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 25 | $138.65 | 8,743.0000 | 51,201,000 | 0.29% | 0.00% |
| May 26, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 50 | $136.73 | 8,805.0000 | 51,201,000 | 0.56% | 0.00% |
| Jan. 31, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 811 | $0.00 | 9,137.0000 | 51,141,000 | 9.74% | 0.00% |
| Jan. 31, 2025 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 282 | $165.57 | 8,855.0000 | 51,141,000 | 3.09% | 0.00% |
| May 31, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Stock Options (Right to Buy) | 1472 | $208.44 | 1,472.0000 | 51,552,000 | 9999.99% | 0.00% |
| May 31, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 648 | $0.00 | 8,326.0000 | 51,552,000 | 8.44% | 0.00% |
| May 28, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 24 | $217.21 | 7,714.0000 | 51,552,000 | 0.31% | 0.00% |
| March 8, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | M | Common Stock | 808 | $267.52 | 8,633.0000 | 51,338,000 | 10.33% | 0.00% |
| March 8, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | S | Common Stock | 808 | $267.52 | 7,825.0000 | 51,338,000 | 9.36% | 0.00% |
| March 8, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | M | Stock Options (Right to Buy) | 808 | $0.00 | 404.0000 | 51,338,000 | 66.67% | 0.00% |
| May 26, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 50 | $217.21 | 7,775.0000 | 51,552,000 | 0.64% | 0.00% |
| May 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 36 | $214.51 | 7,678.0000 | 51,552,000 | 0.47% | 0.00% |
| May 27, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 37 | $217.21 | 7,738.0000 | 51,552,000 | 0.48% | 0.00% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 313 | $220.28 | 10,575.0000 | 51,338,000 | 2.87% | 0.00% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 948 | $0.00 | 10,888.0000 | 51,338,000 | 9.54% | 0.00% |
| March 8, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | S | Common Stock | 808 | $267.52 | 7,024.0000 | 51,338,000 | 10.32% | 0.00% |
| March 4, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | S | Common Stock | 1750 | $260.88 | 8,832.0000 | 51,338,000 | 16.54% | 0.00% |
| March 4, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | S | Common Stock | 1000 | $261.35 | 7,832.0000 | 51,338,000 | 11.32% | 0.00% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 326 | $220.28 | 10,582.0000 | 51,338,000 | 2.99% | 0.00% |
| Jan. 29, 2024 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 968 | $0.00 | 10,908.0000 | 51,338,000 | 9.74% | 0.00% |
| Aug. 10, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | M | Stock Options (Right to Buy) | 1471 | $0.00 | 0.0000 | 50,944,000 | 100.00% | 0.00% |
| Aug. 10, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | M | Common Stock | 1471 | $144.67 | 11,411.0000 | 50,944,000 | 14.80% | 0.00% |
| Aug. 10, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | S | Common Stock | 1471 | $216.54 | 9,940.0000 | 50,944,000 | 12.89% | 0.00% |
| June 1, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 1528 | $0.00 | 9,940.0000 | 50,944,000 | 18.16% | 0.00% |
| May 28, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 24 | $194.12 | 8,448.0000 | 50,944,000 | 0.28% | 0.00% |
| May 26, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Stock Options (Right to Buy) | 1607 | $194.12 | 1,607.0000 | 50,944,000 | 9999.99% | 0.00% |
| May 27, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 36 | $194.12 | 8,472.0000 | 50,944,000 | 0.42% | 0.00% |
| May 26, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 670 | $0.00 | 8,508.0000 | 50,944,000 | 8.55% | 0.00% |
| May 29, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 36 | $194.12 | 8,412.0000 | 50,944,000 | 0.43% | 0.00% |
| Feb. 22, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 51 | $243.60 | 7,838.0000 | 50,944,000 | 0.65% | 0.00% |
| Jan. 27, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | A | Common Stock | 2096 | $0.00 | 8,534.0000 | 50,944,000 | 32.56% | 0.00% |
| Jan. 27, 2023 | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | $CRL | Knell Michael Gunnar | CSVP&Chief Accounting Officer | F | Common Stock | 645 | $244.29 | 7,889.0000 | 50,944,000 | 7.56% | 0.00% |