Form 4 Filing for Celldex Therapeutics, Inc. - Stock Option Grant

This filing details a stock option grant to Neil Garry Arthur, a director at Celldex Therapeutics, Inc. (CLDX). On June 25, 2026, Arthur was granted 26,000 non-qualified stock options with a purchase price of $34.09 per share, exercisable until June 25, 2036. The options were granted under the company's 2021 Omnibus Equity Incentive Plan. This transaction is reported on Form 4, indicating a change in beneficial ownership. The reporting owner, Neil Garry Arthur, is a director and not a ten-percent owner or officer. The post-transaction shares owned following this grant are 26,000.