Shares of Panera Bread were halted briefly for volatility on Monday after a report surfaced that the restaurant chain was exploring a possible sale, after receiving takeover interest.

Panera is purportedly working with advisors to look over strategic options, sources close to Panera told Bloomberg.

Shares jumped more than 7 percent during intraday trading before the stock was halted. Once trading resumed, Panera’s stock surged more than 10 percent.

When reached by CNBC, Chief Financial Officer Michael Bufano said, “As a matter of policy, we never comment on rumors or speculation.”