[Form 4] MARINE PRODUCTS CORP Insider Trading Activity

Rhea-AI Filing Summary

RFA Management Co LLC, a ten percent owner of Marine Products Corporation, reported an “other” restructuring transaction involving 156,838 shares of Marine Products common stock. After this transaction, the filing shows RFA Management holding 0 shares of Marine Products common stock.

The change stems from a merger between Marine Products and MasterCraft Boat Holdings, Inc. Under the Merger Agreement, each Marine Products share was converted into the right to receive $2.43 in cash plus 0.232 shares of MasterCraft common stock. The market price of MasterCraft common stock was $24.64 per share at the close of business on May 14, 2026.

Insights

Equity transactions analyst

Form 4 reflects merger-driven conversion of Marine Products shares into cash and MasterCraft stock.

This Form 4 shows RFA Management Co LLC involved in an “other” restructuring transaction for 156,838 Marine Products shares, with reported holdings dropping to zero. The activity is tied to the closing mechanics of a merger rather than discretionary trading.

Under the Merger Agreement, each Marine Products share was converted into $2.43 in cash plus 0.232 MasterCraft shares. The filing notes MasterCraft’s stock closed at $24.64 on May 14, 2026, giving investors a sense of the equity component’s reference price at the time of conversion.

Insider Trade Summary

Net Buyer: 156,838 shares

Net Buy 1 txn

Insider RFA MANAGEMENT CO LLC

Role 10% Owner

Type	Security	Shares	Price	Value
Other	Common Stock, $.10 Par Value	156,838	$0.00	$0.00

Holdings After Transaction: Common Stock, $.10 Par Value — 0 shares (Direct)

Footnotes (1)

1. F1. Pursuant to the Agreement and Plan of Merger, dated as of February 5, 2026 (the "Merger Agreement"), by and among MasterCraft Boat Holdings, Inc. ("MasterCraft"), Marine Products Corporation ("Marine Products"), Titan Merger Sub 1, Inc., a direct wholly owned subsidiary of MasterCraft, and Titan Merger Sub 2, LLC, a direct wholly owned subsidiary of MasterCraft, at the First Effective Time (as defined in the Merger Agreement), each share of Marine Products' common stock, par value $0.10 per share, was converted into the right to receive $2.43 in cash, without interest, and 0.232 shares of MasterCraft common stock, par value $0.01 per share. The market price of MasterCraft common stock was $24.64 per share at the close of business May 14, 2026.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 05/19/2026 - 05:27 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

X

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^*

RFA MANAGEMENT CO LLC

(Last) (First) (Middle)

C/O RFA MANAGEMENT COMPANY, LLC

1908 CLIFF VALLEY WAY NE

(Street)

ATLANTA GEORGIA 30329

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MARINE PRODUCTS GROUP, LLC [ MPX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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
Common Stock, $.10 Par Value	05/15/2026		J(1)		156,838	A	(1)	0	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. Pursuant to the Agreement and Plan of Merger, dated as of February 5, 2026 (the "Merger Agreement"), by and among MasterCraft Boat Holdings, Inc. ("MasterCraft"), Marine Products Corporation ("Marine Products"), Titan Merger Sub 1, Inc., a direct wholly owned subsidiary of MasterCraft, and Titan Merger Sub 2, LLC, a direct wholly owned subsidiary of MasterCraft, at the First Effective Time (as defined in the Merger Agreement), each share of Marine Products' common stock, par value $0.10 per share, was converted into the right to receive $2.43 in cash, without interest, and 0.232 shares of MasterCraft common stock, par value $0.01 per share. The market price of MasterCraft common stock was $24.64 per share at the close of business May 14, 2026.

	/s/ RFA Management Company, LLC, By: Wesley N. Slagle, President	05/19/2026
	** 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)