Disgraced Theranos Hit With a $140 Million Lawsuit by Once-Partner Walgreens

Drugstore giant Walgreen Co. sued its former lab-testing partner Theranos Inc. in federal court in Delaware, alleging it breached a contract between the two companies, court records show.

The Walgreens Boots Alliance Inc. unit seeks $140 million in damages, the court records show. That amount represents what it invested in Theranos, according to people familiar with the situation.

The civil suit was filed under seal in a Delaware federal court because Walgreens was concerned Theranos might assert that the action violated a confidentiality agreement between the firms, according to court records.

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