Sec Form 4 Filing - SAMINI KEYVAN @ MOBIX LABS, INC - 2026-06-11

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person SAMINI KEYVAN 2. Issuer Name and Ticker or Trading Symbol MOBIX LABS, INC [ MOBX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President, CFO & Director (Last) (First) (Middle) C/O MOBIX LABS, INC., 1 VENTURE, SUITE 220 3. Date of Earliest Transaction (MM/DD/YY) 06/11/2026 (Street) IRVINE, CA92618 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 Class A Common Stock 06/11/2026 S 3 D $ 2.1367 ( 1 ) 267,163 D Class A Common Stock 06/12/2026 S 112,110 D $ 1.9807 ( 2 ) 155,053 D Class A Common Stock 7,353 I ( 3 ) By KSLI Trust Class A Common Stock 17,114 I ( 3 ) By KSSF Trust Class A Common Stock 7,352 I ( 3 ) By SSLI Trust

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 Option (Right to Buy) $ 1.7 ( 4 ) 08/10/2030 Class A Common Stock 32,353 32,352 D Class B Common Stock ( 5 ) ( 5 ) ( 5 ) Class A Common Stock 12,500 12,500 I ( 3 ) By KSSF Trust

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SAMINI KEYVAN C/O MOBIX LABS, INC. 1 VENTURE, SUITE 220 IRVINE, CA92618 X President, CFO & Director Signatures /s/ Terri Aprati, Attorney-in-Fact 06/15/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transactions range from $2.13 to $2.14 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or the security holder of the issuer full information regarding the number of shares sold at each separate price. ( 2 )Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transactions range from $1.9501 to $2.1739 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or the security holder of the issuer full information regarding the number of shares sold at each separate price. ( 3 )The Reporting Person is a trustee of this trust. The Reporting Person disclaims beneficial ownership of the securities held by this trust except to the extent of his respective pecuniary interest therein. ( 4 )These options are fully vested and exercisable. ( 5 )The shares of Class B Common Stock are convertible into shares of Class A Common Stock at the option of the Reporting Person and will be automatically converted upon (i) a transfer by the Reporting Person (other than a permitted transfer) or (ii) the first trading day after the seventh anniversary date of the Closing Date (December 21, 2023).

Remarks: The share amounts reported in Tables I and II and the exercise prices of the options in Table II have been adjusted to reflect a 1-for-10 reverse stock split effected by the Issuer on April 6, 2026.

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.