Mobix Labs director gets 12,255 and 19,101 RSUs

Director James J. Peterson received new MOBX RSU awards and holds fully vested stock options with exercise prices of $41.80 and $68.40.

Rhea-AI Filing Summary

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

MOBIX LABS, INC (MOBX) reported that director James J. Peterson received two equity awards of its Class A Common Stock on September 14, 2026. He was granted 12,255 Restricted Stock Units vesting on September 30, 2026 and 19,101 Restricted Stock Units vesting on October 1, 2026. The filing also lists fully vested stock options giving him the right to buy 2,000 shares at $41.80 per share until August 10, 2030 and 13,341 shares at $68.40 per share until April 4, 2032. The Rule 10b5-1 box is unchecked, so no trading plan is reported for these awards.

Insider Trade Summary

Grant/Award: 31,356 shares

Grant/Award 4 txns

Insider Peterson James J

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 — 515,405 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

RSU grant 1: 12,255 RSUs RSU grant 2: 19,101 RSUs Option exercise price 1: $41.80 per share +3 more

6 metrics

RSU grant 1 12,255 RSUs Granted September 14, 2026; vest September 30, 2026

RSU grant 2 19,101 RSUs Granted September 14, 2026; vest October 1, 2026

Option exercise price 1 $41.80 per share Option on 2,000 underlying Class A shares, expiring August 10, 2030

Option exercise price 2 $68.40 per share Option on 13,341 underlying Class A shares, expiring April 4, 2032

Underlying option shares 1 2,000 shares Fully vested option at $41.80, expiration August 10, 2030

Underlying option shares 2 13,341 shares Fully vested option at $68.40, expiration April 4, 2032

Key Terms

Restricted Stock Units, Option (Right to Buy), Rule 10b5-1 trading plan

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.

Option (Right to Buy) financial

"Security title listed as Option (Right to Buy) for derivative holdings"

Rule 10b5-1 trading plan regulatory

"The Rule 10b5-1 checkbox is present and left unchecked for these awards"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

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

What equity awards did MOBX director James J. Peterson receive on September 14, 2026?

On September 14, 2026, James J. Peterson received 12,255 Restricted Stock Units vesting September 30, 2026 and 19,101 Restricted Stock Units vesting October 1, 2026, all in Class A Common Stock of MOBIX LABS, INC (MOBX).

When do the new MOBX RSU grants to James J. Peterson vest?

The 12,255 RSUs granted to James J. Peterson vest on September 30, 2026, and the additional 19,101 RSUs vest on October 1, 2026, as disclosed in the Form 4 footnotes.

What stock options in MOBX does James J. Peterson hold according to this Form 4?

James J. Peterson holds fully vested options to buy 2,000 MOBX Class A shares at $41.80 per share expiring August 10, 2030, and options on 13,341 shares at $68.40 per share expiring April 4, 2032.

Are James J. Peterson’s MOBX option awards fully vested?

Yes. Footnote F3 states that the reported options are fully vested and exercisable, covering 2,000 underlying shares at $41.80 and 13,341 underlying shares at $68.40 of MOBX Class A Common Stock.

Were James J. Peterson’s MOBX equity transactions under a Rule 10b5-1 trading plan?

No. The Rule 10b5-1 checkbox is unchecked in the Form 4, indicating that the reported equity awards were not affirmed as made under a Rule 10b5-1 trading plan.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/22/2026 - 06:23 PM Accepted by SEC EDGAR 09/22/2026 - 06:22 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^*

Peterson James J

(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	496,304	D
Class A Common Stock	09/14/2026		A		19,101(2)	A	$0.00	515,405	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)