Sean F. Moran's Stock Option Exercise and Sale Plan

Sean F. Moran, an officer of Corbus Pharmaceuticals Holdings, Inc., has filed a Form 144 indicating the intent to sell 12,981 shares of common stock acquired through a stock option exercise. The shares were acquired on February 13, 2023, and the sale is planned for October 24, 2025. The aggregate market value of the shares to be sold is approximately $220,922. The transaction is part of a pre-arranged trading plan adopted on March 14, 2025. There are no recent transactions in the past three months. The sale will be executed through Stifel Nicolaus & Company Inc.