https://techcrunch.com/2020/03/02/activist-investors-want-to-crank-up-the-twitter-revenue-machine/

When Elliott Management, a New York investment firm with an activist approach, sets its sights on a company, it usually means it has been under-performing, and it sees a ton of unmet potential. News broke on Friday that the company had bought a substantial stake in Twitter and was seeking board seats.

Sources have confirmed this information and say the stake is in the 4-5% range. The company is looking to take three or four board seats and wants to implement big changes, including, as reported, replacing Jack Dorsey as CEO.