Tax withholding on Malibu Boats (MBUU) CEO stock vesting

Rhea-AI Filing Summary

Malibu Boats, Inc. director and Chief Executive Officer Steven Menneto reported a withholding of 5,296 shares of Class A Common Stock on August 5, 2026 to satisfy tax obligations. The shares were valued at $29.24 per share and were withheld in connection with the vesting of 14,688 restricted stock units granted on August 5, 2024. After this tax-withholding disposition, Menneto directly holds 82,539 shares of Class A Common Stock.

Insider Trade Summary

Net Seller: 5,296 shares

Net Sell 1 txn

Insider Menneto Steven

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1	5,296	$29.24	$155K

Holdings After Transaction: Class A Common Stock — 82,539 shares (Direct)

Footnotes (1)

1. F1. The shares of the Issuer's Class A Common Stock were withheld for tax withholding purposes in connection with the vesting of 14,688 shares under a restricted stock unit award granted on August 5, 2024.

Key Figures

Shares withheld for taxes: 5,296 shares Price per share: $29.24 Shares held after transaction: 82,539 shares +1 more

4 metrics

Shares withheld for taxes 5,296 shares Class A Common Stock withheld on August 5, 2026 for tax withholding purposes

Price per share $29.24 Per-share value used for the tax-withholding disposition of Class A Common Stock

Shares held after transaction 82,539 shares Direct holdings of Steven Menneto following the August 5, 2026 tax-withholding disposition

Restricted stock units vested 14,688 shares RSUs vesting from an award granted on August 5, 2024 that triggered the tax withholding

Key Terms

restricted stock unit, tax withholding, Class A Common Stock

3 terms

restricted stock unit financial

"in connection with the vesting of 14,688 shares under a restricted stock unit award"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

tax withholding financial

"were withheld for tax withholding purposes in connection with the vesting"

Tax withholding is the practice of taking a portion of a payment—such as wages, dividends, or sale proceeds—before it reaches the recipient and sending that portion to the tax authority as an advance on the recipient’s eventual tax bill. For investors it matters because withholding reduces immediate cash received and affects after‑tax returns, estimated tax payments, and whether you may owe more or receive a refund when taxes are finally calculated, like having a small automatic savings set aside for your tax bill.

Class A Common Stock financial

"The shares of the Issuer's Class A Common Stock were withheld for tax"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/06/2026 - 08:36 AM Accepted by SEC EDGAR 08/06/2026 - 08:36 AM Learn about SEC filing dates

FAQ

What insider transaction did Malibu Boats (MBUU) report for CEO Steven Menneto?

CEO Steven Menneto reported a tax-withholding disposition of 5,296 shares of Malibu Boats Class A Common Stock on August 5, 2026, to cover taxes arising from the vesting of 14,688 restricted stock units granted on August 5, 2024.

How many Malibu Boats (MBUU) shares were withheld and at what price?

A total of 5,296 shares of Malibu Boats Class A Common Stock were withheld at $29.24 per share. These shares were used to satisfy tax withholding obligations related to the vesting of a restricted stock unit award.

How many Malibu Boats (MBUU) shares does CEO Steven Menneto hold after this transaction?

Following the tax-withholding disposition, CEO Steven Menneto directly holds 82,539 shares of Malibu Boats Class A Common Stock. This figure reflects his direct ownership after 5,296 shares were withheld for taxes upon restricted stock unit vesting.

What event triggered the tax withholding for Malibu Boats (MBUU) CEO’s shares?

The withholding was triggered by the vesting of 14,688 shares under a restricted stock unit award granted on August 5, 2024. When these RSUs vested on August 5, 2026, 5,296 shares were withheld to cover associated tax liabilities.

Was the Malibu Boats (MBUU) CEO’s share withholding done under a Rule 10b5-1 trading plan?

No. The transaction is identified as a tax-withholding disposition and the Rule 10b5-1 plan checkbox is not affirmed, indicating it was not reported as executed under a Rule 10b5-1 trading arrangement.

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^*

Menneto Steven

(Last) (First) (Middle)

5075 KIMBERLY WAY

(Street)

LOUDON TENNESSEE 37774

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MALIBU BOATS, INC. [ MBUU ]

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)
08/05/2026

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	08/05/2026		F(1)		5,296	D	$29.24	82,539	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

Explanation of Responses:

1. The shares of the Issuer's Class A Common Stock were withheld for tax withholding purposes in connection with the vesting of 14,688 shares under a restricted stock unit award granted on August 5, 2024.

Remarks:

	STEVE D. MENNETO, /S/ Brooke Zinter as attorney-in-fact	08/06/2026
	** 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)