Kraft Heinz is preparing to break itself up, the Wall Street Journal reported on Friday, at a time when the packaged food maker is grappling with persistent weakness in demand for its higher-priced brands.

Kraft Heinz’s stock jumps after a WSJ report that the packaged food giant is planning a breakup, 10 years after the Kraft-Heinz megamerger.

The Wall Street Journal reports the Chicago-based company could spin off a large piece of its grocery business into a new entity worth as much as $20 billion.