A Twitter Inc. shareholder has accused the company’s top directors in the Delaware Court of Chancery of padding the company’s performance data, in the latest lawsuit to target the San Francisco-based social media giant’s user engagement disclosures in 2015.

The 74-page derivative complaint, made public on Tuesday, alleged that the Twitter board touted the company’s monthly active user numbers, while hiding from investors that its daily active user base was shrinking. At the time, Twitter had stopped using monthly active users as a gauge for user engagement, according to the redacted filing.