Form 4: Charles River Laboratories International CEO Sells Shares
Insider Transaction (Form 4)
Birgit Girshick, Chief Executive Officer and a Director of Charles River Laboratories International, Inc., sold 6,500 shares of common stock on August 11, 2026 for $279.90 per share.
Summary
- Option exercise/conversion: acquired 6,500 Common Stock at $179.66 ($1,167,790) on August 11, 2026; holds 42,513 after (Direct).
- Open-market sale: disposed of 6,500 Common Stock at $279.90 ($1,819,350) on August 11, 2026; holds 36,013 after (Direct).
- Option exercise/conversion: disposed of 6,500 Stock Options (Right to Buy) on August 11, 2026 (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $1,819,350 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Birgit Girshick — Director, Officer (Chief Executive Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-11 | Option exercise/conversion | Common Stock | 6,500 | $180 | $1.2M | 42,513 |
| 2026-08-11 | Open-market sale | Common Stock | 6,500 | $280 | $1.8M | 36,013 |
| 2026-08-11 | Option exercise/conversion | Stock Options (Right to Buy) | 6,500 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-11 | Option exercise/conversion (6,500 shares) |
| 2026-08-11 | Open-market sale (6,500 shares) |
| 2026-08-11 | Option exercise/conversion (6,500 shares) |
Keywords
insider transaction, Form 4, CRL, CHARLES RIVER LABORATORIES INTERNATIONAL, INC., bearish, Birgit Girshick
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