Michael Pearson, chairman and chief executive officer of Valeant Pharmaceuticals International, speaks during the company's annual general meeting in May.
Christinne Muschi/Reuters /Landov
Massachusetts, where this Walgreens outlet is located, is one of the three states where the chain is most concentrated. Regulators could force the company to divest itself of some stores, if its merger with Rite Aid wins approval.
At the New York Stock Exchange, traders watched what was happening to shares of Valeant last Thursday, after questions mounted about the company's practices. NYSE Governor Richard Barry is second from the right.