The disclosure came through a 13D filing, which confirms that Musk has intentions to be more active in Twitter’s business. On Monday, the company indicated that Musk had 9.2% ownership in the company, but it was via a 13G filing, which points to a passive stake for a holder who isn’t trying to exert control or influence.
The flip to becoming an active investor follows an announcement by Twitter and CEO Parag Agrawal on Tuesday that the company will appoint Musk to its board of directors.
Musk, according to the latest filing, has been purchasing shares in his preferred social media company since Jan. 31, and extending through April 1. He’s bought a total of 73.1 million. As of Tuesday’s close, those shares are worth $3.73 billion.
The largest purchase came on Feb. 7, when he bought more than 4.8 million shares worth $176 million. Twitter shares closed at their low point for the year on March 7, at $32.42. They ended January at $37.51.
For as long as Musk is serving on the board, or 90 days after, he can’t own more than 14.9% of Twitter’s stock, either as an individual or as a member of a group, according to Monday’s filing.