Charles River Laboratories International, Inc.
A maker of research animals and drug-development services, Charles River Laboratories supplies the lab rats, mice, and testing that pharmaceutical and biotech companies rely on to bring new medicines to market. It began in 1947 when a young veterinarian, Dr. Henry Foster, started a one-man operation in a Boston loft overlooking the Charles River—the source of its name—personally breeding and hand-delivering the animals to local scientists. Foster paid for his first thousand rat cages with savings from a job as a vet on ships hauling horses to Poland.
Granted 91.2K · Sold 33.6K
Granted 19.5K
Granted 8.6K
Granted 10.7K · Bought 25
Granted 10.1K
Granted 27.8K
Granted 2.8K
Granted 6.4K
Granted 1.4K
Granted 4.3K
Granted 1.9K
Granted 1.4K
Granted 2.0K
Granted 1.4K
Granted 1.9K
Granted 1.4K
Granted 1.4K
Granted 1.4K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Foster James CDirector · 15 transactions | — | 476.6K | 91.2K | — | 33.6K |
| Girshick BirgitChief Executive Officer · 10 transactions | — | 159.6K | 19.5K | — | — |
| Parisotto Shannon MCEVP, Disc & Safety Assessment · 11 transactions | — | 67.6K | 8.6K | — | — |
| LaPlume Joseph WEVP, Corp Strategy & Develop · 8 transactions | +32% | 31.3K | 10.7K | 25 | — |
| Creamer Victoria LEVP & Chief People Officer · 7 transactions | +34.4% | 30.1K | 10.1K | — | — |
| Coleman GlennEVP & Chief Financial Officer · 2 transactions | — | 27.8K | 27.8K | — | — |
| Mackay MartinDirector · 2 transactions | +27.2% | 17.1K | 2.8K | — | — |
| Knell Michael GunnarSVP, Finance and CAO · 8 transactions | +53.3% | 16.2K | 6.4K | — | — |
| Andrews Nancy CDirector · 3 transactions | — | 10.8K | 1.4K | — | — |
| Mintz MarkEVP, Chief Information Officer · 7 transactions | +50.3% | 9.5K | 4.3K | — | — |
| Llado George Sr.Director · 2 transactions | +39.2% | 6.7K | 1.9K | — | — |
| Wilson Virginia MDirector · 1 transaction | +29.3% | 6.3K | 1.4K | — | — |
| Kemps-Polanco ReshemaDirector · 2 transactions | +132.8% | 4.6K | 2.0K | — | — |
| Thompson Craig B.Director · 1 transaction | +59.6% | 3.9K | 1.4K | — | — |
| Barg StevenDirector · 2 transactions | +130.3% | 3.3K | 1.9K | — | — |
| Ceesay AbrahamDirector · 1 transaction | +152% | 2.4K | 1.4K | — | — |
| Enyedy Mark JDirector · 1 transaction | +152% | 2.4K | 1.4K | — | — |
| Graves Paul WDirector · 1 transaction | +152% | 2.4K | 1.4K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last year: -33.5K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.