Tron founder Justin Sun "travelled extensively," spending more than 380 days in the U.S. from 2017 to 2019 while certain tokens were being promoted and sold, the Securities and Exchange Commission said in an updated complaint.

During that period, Sun spent time in a few cities in the U.S., including New York City, Boston and San Francisco. The agency said that Rainberry, the name Sun gave BitTorrent when he acquired it in 2018, rented an apartment where the crypto entrepreneur stayed during his business trips in 2019. 

"The Court has personal jurisdiction over Defendants because, through their conduct alleged herein, they purposefully took actions in and directed toward the United States," the SEC said in the updated document filed on Thursday. 

In March 2023, the SEC charged …