Insiders at artificial intelligence chipmaker Nvidia have dumped more than $1 billion in stock over the last year, according to a Financial Times report. About half of those sales occurred during the last month as the market notched new highs and shook off geopolitical tensions.

Nvidia insiders sold over $1 billion worth of company stock in the past year, with a notable uptick in recent trading activity as executives capitalize on surging investor interest in artificial intelligence,

Nvidia’s (NVDA) meteoric rise continues, with shares surging more than 80% from their April lows to reclaim the title of the world’s most valuable company, boasting a $3.85 trillion market capitalization.