Mobix Labs Form 4: 46,855 RSUs Granted; Vested Options Total 153,416 Shares

Rhea-AI Filing Summary

Kurt Busch, a director of Mobix Labs, Inc. (MOBX), reported awards and existing holdings on a Form 4 dated with transactions on 09/23/2025. The filing shows 46,855 restricted stock units (RSUs) were granted to Mr. Busch on 09/23/2025, increasing his beneficial ownership to 372,429 shares of Class A common stock.

The report also lists two fully vested, exercisable stock options held directly by Mr. Busch: an option to buy 20,000 shares at an exercise price of $4.18 (expiration 08/10/2030) and an option to buy 133,416 shares at $6.84 (expiration 04/04/2032). The Form 4 was signed by an attorney-in-fact, Terri Aprati, on 09/25/2025.

Positive

• 46,855 RSUs granted to the reporting director on 09/23/2025, as explicitly stated
• Beneficial ownership reported at 372,429 Class A common shares following the RSU grant
• Two option series are fully vested and exercisable, with documented exercise prices and expiration dates

Negative

• None.

Insights

Financial Analyst

TL;DR: Director received RSUs and holds fully vested options, increasing his reported beneficial stake to 372,429 shares.

The grant of 46,855 RSUs is a clear compensation event that raises the director's reported economic interest to 372,429 Class A shares. The filing also documents two option series totaling 153,416 underlying shares that are fully vested and exercisable, with exercise prices of $4.18 and $6.84 and expirations in 2030 and 2032 respectively. For investors, these figures clarify share-based compensation and the director's potential future exercising activity; the filing does not disclose cash proceeds or exercises occurring on the reported date.

Corporate Governance Expert

TL;DR: Standard insider disclosure: RSU grant and vested options reported by a director, filed under Section 16.

The Form 4 fulfills Section 16 reporting requirements by documenting an RSU grant and existing option holdings by a director. The report identifies the reporting person, relationship to the issuer (director), the transaction date (09/23/2025), and signature by an attorney-in-fact. No amendments or corrective disclosures are indicated. This is a routine executive compensation and ownership disclosure rather than a governance dispute or compliance exception.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

1. Name and Address of Reporting Person^*

Busch Kurt

(Last) (First) (Middle)

C/O MOBIX LABS, INC.

1 VENTURE, SUITE 220

(Street)

IRVINE CA 92618

(City) (State) (Zip)

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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/23/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	09/23/2025		A		46,855(1)	A	$0.00	372,429	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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)	$4.18							(2)	08/10/2030	Class A Common Stock	20,000		20,000	D
Option (Right to Buy)	$6.84							(2)	04/04/2032	Class A Common Stock	133,416		133,416	D

Explanation of Responses:

1. These Restricted Stock Units ("RSUs") were granted to the Reporting Person on September 23, 2025.

2. These options are fully vested and exercisable.

	/s/ Terri Aprati, Attorney-in-Fact	09/25/2025
	** Signature of Reporting Person	Date
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.

FAQ

Who filed the Form 4 for MOBX and what is their relationship to the company?

The reporting person is Kurt Busch, identified in the filing as a Director of Mobix Labs, Inc.

How many restricted stock units (RSUs) were granted to the reporting person on 09/23/2025?

The filing states that 46,855 RSUs were granted to the reporting person on 09/23/2025.

What is the reported beneficial ownership following the transaction?

The Form 4 reports 372,429 Class A common shares beneficially owned following the RSU grant.

What stock options does the reporting person hold and are they exercisable?

The reporting person holds an option for 20,000 shares at $4.18 (expires 08/10/2030) and an option for 133,416 shares at $6.84 (expires 04/04/2032); both are stated as fully vested and exercisable.

When was the Form 4 signed and by whom?

The Form 4 was signed by attorney-in-fact Terri Aprati on 09/25/2025.