Sycamore Partners is nearing an acquisition of Walgreens Boots Alliance Inc., people with knowledge of the matter said, in a deal that could end the drugstore operator’s tumultuous run as a public company.

The companies are putting the final touches on a transaction that may be announced as soon as this week, sources said.

Shares of Walgreens Boots Alliance (WBA) rose Tuesday premarket after the Wall Street Journal reported that Sycamore Partners was closing in on a deal to acquire the U.S. pharmacy chain for about $10 billion.