Massachusetts Retirement Systems v. CVS Caremark: Reviving a Shareholder Suit, First Circuit Weighs In On Corrective Disclosures and Loss Causation in Securities Fraud Class Actions

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In Mass. Ret. Sys. v. CVS Caremark Corp., the First Circuit recently revived a shareholder securities fraud class action stemming from the 2006 merger of retail pharmacy chain, CVS, and pres…