Mobix Labs director receives RSUs, holds options

MOBIX LABS director Bill Carpou received new RSU awards and reports fully vested stock options, with no share sales disclosed.

Rhea-AI Filing Summary

MOBIX LABS, INC (symbol: MOBX) is the issuer of record for a Form 4 filing submitted to the SEC. Carpou Bill reported acquisition or exercise transactions in this Form 4 filing.

MOBIX LABS, INC (MOBX) reported that director Bill Carpou received equity awards on September 14, 2026. He was granted Restricted Stock Units covering 12,255 shares of Class A common stock that vest on September 30, 2026 and 19,101 shares that vest on October 1, 2026. He also holds fully vested stock options to buy Class A common stock, including rights over 2,000 shares at $41.80 per share expiring August 10, 2030 and 13,341 shares at $68.40 per share expiring April 4, 2032. No sales were reported and no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Grant/Award: 31,356 shares

Grant/Award 4 txns

Insider Carpou Bill

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock F1	12,255	$0.00	$0.00
Grant/Award	Class A Common Stock F2	19,101	$0.00	$0.00
holding	Option (Right to Buy) F3	--	--	--
holding	Option (Right to Buy) F3	--	--	--

Holdings After Transaction: Class A Common Stock — 98,638 shares (Direct); Option (Right to Buy) — 15,341 contracts (Direct)

Footnotes (3)

1. F1. These Restricted Stock Units were granted to the Reporting Person on September 14, 2026 and vest on September 30, 2026.
2. F2. These Restricted Stock Units were granted to the Reporting Person on September 14, 2026 and vest on October 1, 2026.
3. F3. These options are fully vested and exercisable.

Key Figures

RSUs vesting September 30, 2026: 12,255 shares RSUs vesting October 1, 2026: 19,101 shares Option exercise price: $41.80 per share +3 more

6 metrics

RSUs vesting September 30, 2026 12,255 shares Restricted Stock Units granted September 14, 2026 vesting on September 30, 2026

RSUs vesting October 1, 2026 19,101 shares Restricted Stock Units granted September 14, 2026 vesting on October 1, 2026

Option exercise price $41.80 per share Option to buy Class A common stock over 2,000 underlying shares expiring August 10, 2030

Underlying shares for $41.80 option 2,000 shares Fully vested option expiring August 10, 2030

Option exercise price $68.40 per share Option to buy Class A common stock over 13,341 underlying shares expiring April 4, 2032

Underlying shares for $68.40 option 13,341 shares Fully vested option expiring April 4, 2032

Key Terms

Restricted Stock Units, fully vested and exercisable, Option (Right to Buy)

3 terms

Restricted Stock Units financial

"These Restricted Stock Units were granted to the Reporting Person on September 14, 2026"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

fully vested and exercisable financial

"These options are fully vested and exercisable."

Option (Right to Buy) financial

"Option (Right to Buy)"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What equity awards did MOBX director Bill Carpou receive on September 14, 2026?

He received Restricted Stock Unit awards covering 12,255 shares of Class A common stock vesting on September 30, 2026 and 19,101 shares vesting on October 1, 2026.

When do Bill Carpou’s new MOBX RSUs vest?

The RSUs granted on September 14, 2026 vest in two tranches: 12,255 shares vest on September 30, 2026 and 19,101 shares vest on October 1, 2026.

What stock options does Bill Carpou hold in MOBX according to this Form 4?

He holds fully vested options to buy Class A common stock, including rights over 2,000 underlying shares at $41.80 per share expiring August 10, 2030 and 13,341 underlying shares at $68.40 per share expiring April 4, 2032.

Were any MOBX shares sold by Bill Carpou in this Form 4 filing?

No. The filing reports only equity awards and existing option holdings for Bill Carpou; it does not report any sales or other dispositions of MOBIX LABS, INC Class A common stock.

Are Bill Carpou’s MOBX options vested and exercisable?

Yes. The filing states that these options are fully vested and exercisable, including options over 2,000 underlying shares at $41.80 and 13,341 underlying shares at $68.40.

Were Bill Carpou’s MOBX transactions under a Rule 10b5-1 trading plan?

No Rule 10b5-1 trading plan is reported for these transactions involving Bill Carpou’s MOBIX LABS, INC equity awards and option holdings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/22/2026 - 06:17 PM Accepted by SEC EDGAR 09/22/2026 - 06:17 PM Learn about SEC filing dates

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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Carpou Bill

(Last) (First) (Middle)

C/O MOBIX LABS, INC.

1 VENTURE, SUITE 220

(Street)

IRVINE CALIFORNIA 92618

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/14/2026

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

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

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

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	09/14/2026		A		12,255(1)	A	$0.00	79,537	D
Class A Common Stock	09/14/2026		A		19,101(2)	A	$0.00	98,638	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)	$41.8							(3)	08/10/2030	Class A Common Stock	2,000		2,000	D
Option (Right to Buy)	$68.4							(3)	04/04/2032	Class A Common Stock	13,341		13,341	D

Explanation of Responses:

1. These Restricted Stock Units were granted to the Reporting Person on September 14, 2026 and vest on September 30, 2026.

2. These Restricted Stock Units were granted to the Reporting Person on September 14, 2026 and vest on October 1, 2026.

3. These options are fully vested and exercisable.

	/s/ Terri Aprati, Attorney-in-Fact	09/22/2026
	** 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.
* Form 4: SEC 1474 (03-26)