Cogent Biosciences, Inc. (NASDAQ:COGT) is one of Billionaire Stan Druckenmiller’s 10 Small and Mid-Cap Stock Picks with Huge Upside Potential. Cogent Biosciences, Inc. (NASDAQ:COGT) is a relatively recent addition to the 13F portfolio of Duquesne Capital. The fund first disclosed a stake in the company in the third quarter of 2025. This position comprised just over a million shares. Filings for the fourth quarter of 2025 show that the fund has more than doubled this holding, upping it to more than 2.2 mil ...