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.”

The Wall Street Journal previously reported that Walgreens and Sycamore Partners were discussing a deal that could be finalized early this year.

Shares of Walgreens (NASDAQ: WBA) fell sharply by 9% following reports that a potential acquisition by private equity firm Sycamore Partners may not materialize. CNBC's David Faber indicated that the deal,