received anonymously:

"Damage was done to a Barclays branch as a result of stock being held in Charles River Laboratories. The monkeys you capture in Mauritius, the rodents you breed and torture we will fight to liberate. Charles River your world will crash down.

Sell now or we will come free

[Other major institutional holders:]
Goldman Sachs
Wellington Management Co.
Neuberger Berman
Madison Investment
Farallon
Schupf & Co
Osterweis
First Pacific
Fidelity
Columbia Acorn
Baron
Buffalo

A.L.F U.S.A."