Sec Form 4 Filing - Bibisi Ray Michael @ R F INDUSTRIES LTD - 2024-01-11

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Bibisi Ray Michael 2. Issuer Name and Ticker or Trading Symbol R F INDUSTRIES LTD [ RFIL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operating Officer (Last) (First) (Middle) 16868 VIA DEL CAMPO COURT, SUITE 200 3. Date of Earliest Transaction (MM/DD/YY) 01/11/2024 (Street) SAN DIEGO, CA92127 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 01/11/2024 A 20,883 ( 1 ) A $ 0 38,194 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (Right to Buy) $ 3.01 01/11/2024 A 41,667 ( 2 ) 01/11/2034 Common Stock 41,667 $ 0 41,667 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Bibisi Ray Michael 16868 VIA DEL CAMPO COURT SUITE 200 SAN DIEGO, CA92127 Chief Operating Officer Signatures /s/ Ray Michael Bibisi 01/16/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On January 11, 2024, the Board of Directors of the Issuer granted the Reporting Person restricted stock units of Issuer. Provided the Reporting Person is still employed with the Issuer or its subsidiaries on the following dates, the restricted stock units shall vest over four years as follows: (i) one-quarter of the restricted stock units shall vest on January 11, 2025; and (ii) the remaining restricted stock units shall vest in twelve equal quarterly installments over the next three years, commencing with the first quarter following January 11, 2025. ( 2 )On January 11, 2024, the Board of Directors of the Issuer granted the Reporting Person options to purchase the common stock of Issuer. Provided the Reporting Person is still employed with the Issuer or its subsidiaries on the following dates, the options shall vest over four years as follows: (i) one-quarter of the options shall vest on January 11, 2025; and (ii) the remaining options shall vest in twelve equal quarterly installments over the next three years, commencing with the first quarter following January 11, 2025.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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