SEC Form 4 · accession 0001100682-26-000132
CHARLES RIVER LABORATORIES INTERNATIONAL, INC. · CRL
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Birgit Girshick
Officer — Chief Executive Officer · Director
Period of report
Aug 11, 2026
Accepted (ET)
Aug 13, 2026 · 4:37 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001100682
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 11, 2026 | M | 6,500 | $179.66 | A | 42,513 | D | |
| Common StockF1 | Aug 11, 2026 | S | 6,500 | $279.90 | D | 36,013 | D | |
| Common Stock | holding | — | — | — | 43,803 | I | Revocable Trust |
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 11, 2026 | M | 6,500 | D | May 29, 2021 | May 29, 2030 | Common Stock | 6,500 | 0 | D |
Explanation of responses
- F1This exercise and sale occurred pursuant to a Rule 10b5-1 Trading Plan that was initially adopted on March 3, 2025.