The complaint said Pfizer employees had promoted ziprasidone, an antipsychotic medicine, before it was approved by the British government.

Yesterday Reuters said that Ms. Ryan had been approached by a former Pfizer employee charging a cover-up centering on the heart valve.

Fidelity Management and Research, which holds 1.62 percent of Pfizer's shares for its customers, also manages several funds offered in Pfizer employee 401(k) and savings plans.

It also manages an index fund for Pfizer employees in Puerto Rico.

This is nothing other than a betrayal of Pfizer employees and shareholders.

There are 25 Pfizer employees now based at Doral Arrowwood, where management and sales-training seminars are conducted.

There has been considerable activity involving service companies that could benefit from the presence of Pfizer employees.

Earlier this week, a person claiming to be a senior Pfizer employee sent a letter to Pfizer's board critical of Mr. Kindler.

A person claiming to be a senior Pfizer employee sent an anonymous letter to directors - and reporters - critical of one potential successor, Jeffrey B. Kindler.

A Pfizer employee, Jessica Ortiz, who grew up across the street from the plant, said she hoped they will turn it into a museum.