20 insiders reported 171 Form 4 transactions for CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) over the past 18 months (most recent 2026-08-27). Recent activity: FOSTER JAMES C (Director) Buy 21,132 shares, FOSTER JAMES C (Director) Buy 12,429 shares, FOSTER JAMES C (Director) Sell 33,561 shares, Parisotto Shannon M (CEVP, Disc & Safety Assessment) Buy 2,039 shares, Andrews Nancy C (Director) Buy 573 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-27 | FOSTER JAMES C | Director | Buy | 21,132 | $4.1M |
| 2026-08-27 | FOSTER JAMES C | Director | Buy | 12,429 | $2.6M |
| 2026-08-27 | FOSTER JAMES C | Director | Sell | 33,561 | $10.1M |
| 2026-08-20 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Buy | 2,039 | $395,811 |
| 2026-08-20 | Andrews Nancy C | Director | Buy | 573 | $94,144 |
| 2026-08-20 | Girshick Birgit | Chief Executive Officer | Sell | 528 | $0 |
| 2026-08-20 | Andrews Nancy C | Director | Sell | 573 | $163,443 |
| 2026-08-20 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Sell | 2,039 | $599,711 |
| 2026-08-13 | Girshick Birgit | Chief Executive Officer | Buy | 6,500 | $1.2M |
| 2026-08-13 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Buy | 3,714 | $667,257 |
| 2026-08-13 | Girshick Birgit | Chief Executive Officer | Sell | 6,500 | $1.8M |
| 2026-08-13 | Parisotto Shannon M | CEVP, Disc & Safety Assessment | Sell | 3,714 | $1.0M |
| 2026-08-11 | LaPlume Joseph W | EVP, Corp Strategy & Develop | Sell | 257 | $0 |
| 2026-08-11 | FOSTER JAMES C | Director | Sell | 28,733 | $7.9M |
| 2026-08-11 | FOSTER JAMES C | Director | Buy | 28,733 | $5.2M |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Buy | 1,205 | $233,915 |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 1,274 | $330,055 |
| 2026-08-10 | Creamer Victoria L | EVP & Chief People Officer | Buy | 4,179 | $750,799 |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 901 | $234,828 |
| 2026-08-10 | Creamer Victoria L | EVP & Chief People Officer | Sell | 4,179 | $1.1M |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 810 | $211,774 |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 213 | $55,885 |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 620 | $163,643 |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Sell | 482 | $127,812 |
| 2026-08-10 | Knell Michael Gunnar | SVP, Finance and CAO | Buy | 404 | $72,583 |
Source: SEC Form 4 filings · as of 2026-08-27