Form 4 Filing for Donald E. Walther

This filing details transactions made by Donald E. Walther, Chief Legal Officer of COMTECH TELECOMMUNICATIONS CORP /DE/, on April 28, 2026. Walther acquired 1,685 shares of common stock and 28,986 restricted stock units (RSUs) with a conversion price footnote. He also disposed of 576 shares and 9,899 shares, with the latter two transactions being to cover tax obligations related to the vesting of RSUs. The RSUs vested on April 28, 2026, were issued on April 28, 2023. Post-transaction, Walther holds 44,131 shares of common stock and his RSU holdings amount to 173,669 and 144,683 in separate transactions.