Form 4 Filing for Castellum, Inc. - Officer/Director Transaction

This Form 4 filing details a transaction by Jay O. Wright, EVP - Strategy and General Counsel, Secretary of Castellum, Inc. On December 19, 2025, Mr. Wright disposed of 30,000 shares of Common Stock at a price of $1.05 per share. Following this transaction, Mr. Wright directly owns 7,134,973 shares of Castellum, Inc. Common Stock. The transaction code is "S", indicating a sale, and the disposal code is "D", signifying a disposition.