A Wall Street Journal report noted that according to CNBC's David Faber, a prospective deal between Walgreens and New York private-equity firm Sycamore Partners is “mostly dead.”

Shares of Walgreens Boots Alliance tumbled today following a CNBC report that the Deerfield-based pharmacy chain was unlikely to sell itself to a private-equity firm. CNBC’s David Faber reported on air this morning that sources say the possible deal in which Walgreens would sell itself to New York-based Sycamore Partners is “mostly dead.”