SEC Form 4 · accession 0001100682-26-000124
CHARLES RIVER LABORATORIES INTERNATIONAL, INC. · CRL
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Michael Gunnar Knell
Officer — SVP, Finance and CAO
Period of report
Aug 6, 2026
Accepted (ET)
Aug 10, 2026 · 4:40 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001100682
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Aug 6, 2026 | S | 1,274 | $259.07 | D | 14,878 | D | |
| Common StockF2 | Aug 6, 2026 | S | 901 | $260.63 | D | 13,977 | D | |
| Common StockF3 | Aug 6, 2026 | S | 810 | $261.45 | D | 13,167 | D | |
| Common StockF4 | Aug 6, 2026 | S | 213 | $262.37 | D | 12,954 | D | |
| Common StockF5 | Aug 6, 2026 | S | 620 | $263.94 | D | 12,334 | D | |
| Common StockF6 | Aug 6, 2026 | S | 482 | $265.17 | D | 11,852 | D | |
| Common Stock | Aug 6, 2026 | M | 404 | $179.66 | A | 12,256 | D | |
| Common Stock | Aug 6, 2026 | M | 1,205 | $194.12 | A | 13,461 | D | |
| Common Stock | Aug 6, 2026 | M | 736 | $208.44 | A | 14,197 | D | |
| Common Stock | Aug 6, 2026 | S | 404 | $258.53 | D | 13,793 | D | |
| Common Stock | Aug 6, 2026 | S | 1,205 | $258.53 | D | 12,588 | D | |
| Common Stock | Aug 6, 2026 | S | 736 | $258.53 | D | 11,852 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Options (Right to Buy) | $179.66 | Aug 6, 2026 | M | 404 | D | May 29, 2021 | May 29, 2030 | Common Stock | 404 | 0 | D |
| Stock Options (Right to Buy) | $194.12 | Aug 6, 2026 | M | 1,205 | D | May 26, 2024 | May 26, 2033 | Common Stock | 1,205 | 402 | D |
| Stock Options (Right to Buy) | $208.44 | Aug 6, 2026 | M | 736 | D | May 31, 2025 | May 31, 2034 | Common Stock | 736 | 736 | D |
Explanation of responses
- F1This transaction was executed in multiple trades at prices ranging from $258.77 to $259.43. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
- F2This transaction was executed in multiple trades at prices ranging from $259.97 to $260.94. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
- F3This transaction was executed in multiple trades at prices ranging from $261.00 to $261.84. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
- F4This transaction was executed in multiple trades at prices ranging from $262.26 to $262.50. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
- F5This transaction was executed in multiple trades at prices ranging from $263.39 to $264.29. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
- F6This transaction was executed in multiple trades at prices ranging from $264.91 to $265.60. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.