Neilson Barnard/Getty Images Stanley Druckenmiller slashed his exposure to Nvidia by 72% in the first quarter, according to 13F filings. The billionaire investor also initiated a new bullish position in small caps and added to his copper exposure. Here are the big investment moves Druckenmiller made last quarter. Billionaire investor Stanley Druckenmiller slashed his exposure to AI darling Nvidia by 72% in the first quarter, according to a 13F filing with the Securities and Exchange Commission.Druckenmiller's Duquense Family Office, which manages about $4.4 billion, sold 441,551 shares of Nvidia in the first quarter.Druckenmiller was taking profits on what turned out to be a massive winning trade for him.