X0306 4 2022-12-28 0 0000740664 R F INDUSTRIES LTD RFIL 0001710872 Dawson Robert D 7610 MIRAMAR RD., BLDG. 6000 SAN DIEGO CA 92126 1 1 0 0 President and CEO Common Stock 2022-12-28 4 M 0 45000 1.9 A 155711 D Stock Option (right to buy) 1.9 2022-12-28 4 M 0 45000 0 D 2027-07-16 Common Stock 45000 25000 D On July 17, 2017, the reporting person was granted an option to purchase 100,000 shares of common stock of the issuer. The option vested as to 10,000 shares on July 17, 2017 with the remaining 90,000 shares to vest in equal installments over the following nine years. On July 16, 2021, the reporting person entered into a new employment agreement with the issuer. Pursuant to such employment agreement, the vesting schedule of the July 17, 2017 option grant was revised, such that 25,000 of the unvested options would vest on July 17, 2022 and the remaining 25,000 unvested options would vest on July 17, 2023. /s/ Robert D. Dawson 2022-12-29