[Form 4] MALIBU BOATS, INC. Insider Trading Activity

Rhea-AI Filing Summary

Malibu Boats (MBUU) reported that a director acquired 3,186 stock units on 10/24/2025 under the company’s Director’s Compensation Policy at a price of $0.

Following the award, the director’s beneficial ownership is 36,643 stock units, held directly. The units are fully vested and payable in Class A shares upon the first to occur of separation from service, a change in control, or an elected in-service distribution date, with payment either as a lump sum within 30 days or in annual installments over 5 or 10 years.

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

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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^*

Buch James R.

(Last) (First) (Middle)

5075 KIMBERLY WAY

(Street)

LOUDON TN 37774

(City) (State) (Zip)

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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/24/2025

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	10/24/2025		A(1)(2)		3,186	A	$0	36,643(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. In accordance with the Issuer's Director's Compensation Policy, the reporting person was issued an equity award of 3,186 stock units on October 24, 2025 for his service on the board of directors of the Issuer.

2. The stock units are fully vested and payable in an equivalent number of shares of the Issuer's Class A Common Stock upon the first to occur of (A) the date of the reporting person's separation from service, (B) the occurrence of a change in control under the Issuer's equity incentive plans or (C) an in-service distribution date elected by the reporting person (each, a "Payment Event"). The reporting person may elect whether amounts becoming payable shall be paid in a lump-sum within 30 days following the Payment Event, or in annual installments over a period of 5 years or 10 years.

3. Includes 5,291 stock units with vesting terms described in footnote 2 and 26,080 stock units that are fully vested and payable in an equivalent number of shares of the Issuer's Class A Common Stock upon or as soon as practicable, and in all events within 30 days, following the first to occur of (A) the date of the reporting person's separation from service or (B) the occurrence of a change in control under the Issuer's equity incentive plans.

Remarks:

	JAMES R. BUCH, /s/ Brooke Zinter as attorney-in-fact	10/28/2025
	** 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

What did Malibu Boats (MBUU) disclose on this Form 4?

A director received 3,186 stock units on 10/24/2025 under the Director’s Compensation Policy.

How many stock units were granted and at what price?

The grant was 3,186 stock units at a price of $0.

What is the director’s total beneficial ownership after the grant?

Total beneficial ownership is 36,643 stock units, held directly.

When do the granted stock units become payable?

They are fully vested and payable upon separation from service, change in control, or an elected in-service distribution date.

How can the stock units be paid out?

Payment may be in a lump sum within 30 days of a payment event or in annual installments over 5 or 10 years.

What class of shares underlies these stock units?

They are payable in an equivalent number of Class A Common Stock shares.