Form 4 Filing for James J. Marino at Celldex Therapeutics, Inc.

This filing reports a transaction by James J. Marino, a director at Celldex Therapeutics, Inc. On June 25, 2026, Marino was granted 26,000 non-qualified stock options under the company's 2021 Omnibus Equity Incentive Plan. These options have an exercise price of $34.09 and will expire on June 25, 2036. The options are exercisable starting June 25, 2027. This transaction is a grant of options, indicated by the acquisition code "A". The underlying security for these options is the company's Common Stock. Following this grant, Marino holds 26,000 shares. The filing was signed on June 29, 2026, by Sam Martin, acting as attorney-in-fact for James J. Marino.