MOBIX Labs (MOBX) CEO tax-related sell-to-cover leaves 175,431 shares

Filing Impact

(Neutral)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

MOBIX Labs, Inc. director and CEO Philip Sansone reported an open-market sale of 9,541 shares of Class A Common Stock. The shares were sold at a weighted average price of $2.3544 per share to cover tax liabilities from restricted stock units that vested on April 30, 2026, under an irrevocable sell-to-cover election and not as discretionary trades.

After these transactions, Sansone directly holds 175,431 shares of Class A Common Stock. The company effected a 1-to-10 reverse stock split on April 6, 2026, which reduced his direct holdings.

Insider Trade Summary

Net Seller: 9,541 shares ($22,463)

Net Sell 1 txn

Insider SANSONE PHILIP

Role Chief Executive Officer

Sold 9,541 shs ($22K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	9,541	$2.3544	$22K

Holdings After Transaction: Class A Common Stock — 175,431 shares (Direct, null)

Footnotes (1)

The reported shares were sold solely to cover the Reporting Person's tax liability associated with the restricted stock units that vested on April 30, 2026. These sales were made pursuant to an irrevocable election by the Reporting Person to satisfy tax withholding obligations through "sell to cover" transactions and do not represent discretionary trades by the Reporting Person. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction range from $2.32 to $2.42 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares sold at each separate price. On April 6, 2026, Mobix Labs, Inc. effected a 1-to-10 reverse stock split which resulted in a reduction in the Reporting Person's direct holdings.

Key Figures

Shares sold: 9,541 shares Weighted average sale price: $2.3544 per share Sale price range: $2.32 to $2.42 per share +2 more

5 metrics

Shares sold 9,541 shares Open-market sale on April 30, 2026 to cover taxes

Weighted average sale price $2.3544 per share Tax-related sell-to-cover transaction

Sale price range $2.32 to $2.42 per share Range of prices in reported sales

Shares held after transaction 175,431 shares Direct holdings following April 30, 2026 sale

Reverse stock split ratio 1-for-10 Reverse split effected on April 6, 2026

Key Terms

sell to cover, restricted stock units, weighted average price, reverse stock split

4 terms

sell to cover financial

"satisfy tax withholding obligations through "sell to cover" transactions and do not represent discretionary trades"

Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.

restricted stock units financial

"tax liability associated with the restricted stock units that vested on April 30, 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.

weighted average price financial

"Represents the weighted average price of the shares sold"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

reverse stock split financial

"effected a 1-to-10 reverse stock split which resulted in a reduction"

A reverse stock split is when a company reduces the number of its shares outstanding, making each share more valuable. For example, if you own 100 shares worth $1 each, a 1-for-10 reverse split would turn your 100 shares into 10 shares worth $10 each. Companies often do this to boost their stock price and appear more stable to investors.

Form 4 Insider Transactions: What Each Field Means →

05/04/2026 - 09:29 PM

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^*

SANSONE PHILIP

(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
X	Officer (give title below)	Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	04/30/2026		S		9,541⁽¹⁾	D	$2.3544⁽²⁾	175,431⁽³⁾	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The reported shares were sold solely to cover the Reporting Person's tax liability associated with the restricted stock units that vested on April 30, 2026. These sales were made pursuant to an irrevocable election by the Reporting Person to satisfy tax withholding obligations through "sell to cover" transactions and do not represent discretionary trades by the Reporting Person.

2. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transaction range from $2.32 to $2.42 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares sold at each separate price.

3. On April 6, 2026, Mobix Labs, Inc. effected a 1-to-10 reverse stock split which resulted in a reduction in the Reporting Person's direct holdings.

	/s/ Terri Aprati, Attorney-in-Fact	05/04/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What did MOBIX Labs (MOBX) CEO Philip Sansone report in this Form 4?

Philip Sansone reported selling 9,541 shares of MOBIX Labs Class A Common Stock. The filing explains these shares were sold solely to cover tax liabilities related to recently vested restricted stock units, under a pre-arranged sell-to-cover election rather than a discretionary trade.

At what price did the MOBIX Labs (MOBX) shares sell in Sansone’s transaction?

The shares sold at a weighted average price of $2.3544 per share. According to the filing, individual sale prices ranged from $2.32 to $2.42, and Sansone has offered to provide full trade breakdowns to the company, regulators, or security holders upon request.

Why did MOBIX Labs (MOBX) CEO Sansone sell 9,541 shares?

The sale was executed solely to cover Sansone’s tax liability from restricted stock units that vested on April 30, 2026. The filing notes he made an irrevocable election to satisfy tax withholding through sell-to-cover transactions, meaning the sales were not discretionary trades.

How many MOBIX Labs (MOBX) shares does Sansone hold after the Form 4 sale?

Following the tax-related sale, Sansone directly holds 175,431 shares of Class A Common Stock. This post-transaction balance reflects both the sell-to-cover activity and the impact of the company’s 1-to-10 reverse stock split completed earlier in April 2026.

Did a reverse stock split affect MOBIX Labs (MOBX) CEO Sansone’s holdings?

Yes. The filing states Mobix Labs, Inc. completed a 1-to-10 reverse stock split on April 6, 2026. This corporate action reduced Sansone’s direct share count proportionally, separate from the later tax-related sell-to-cover transaction reported in this Form 4.