X0609 4 2026-05-18 0000875657 ULTRALIFE CORP ULBI 0001958474 Manna Michael Edward false 2000 TECHNOLOGY PARKWAY NEWARK NY 14513 1 1 President and CEO 0 Ultralife Common Stock; $.10 par value 2026-05-18 4 P 0 2000 6.4693 A 28674 D The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.4600 to $6.4700. The reporting person undertakes to provide upon request by the staff of the SEC, the issuer, or a security holder of the issuer, full information regarding the number of shares transacted at each price, with respect to the transaction reported on this Form 4. /s/ Michael E. Manna 2026-05-18