Cogent Biosciences Stock Soars 346% in a Year, but One Fund Just Sold Off $4.5 Million

On February 17, 2026, Rock Springs Capital Management disclosed in a U.S. Securities and Exchange Commission (SEC) filing that it sold 159,278 shares of Cogent Biosciences (NASDAQ:COGT), an estimated $4.48 million trade based on quarterly average pricing. What happened According to its SEC filing dated February 17, 2026, Rock Springs Capital Management LP reduced its stake in Cogent Biosciences by 159,278 shares during the fourth quarter. The estimated transaction value was $4.48 million, calculated from ...