Martin Midstream 10% owner increases stake with unit purchase

Rhea-AI Filing Summary

Martin Midstream Partners L.P. (MMLP) reported an insider transaction by a 10% owner on a Form 4. On 11/25/2025, the reporting person purchased 15,040 Common Units in a open-market transaction at a price of $2.5924 per unit. After this trade, the reporting person directly owns 2,751,937.2337 Common Units. The footnotes explain that Martin Product Sales LLC is a wholly owned subsidiary of Martin Resource Management Corporation (MRMC), and MRMC may be deemed to beneficially own the Common Units held by Martin Product. Following the transaction, MRMC will directly or indirectly own 7,845,204.23371 Common Units and controls the general partner of the partnership through its ownership of the equity interests of the sole member of the general partner.

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^*

Martin Product Sales LLC

(Last) (First) (Middle)

4200 B STONE ROAD

4200 B STONE ROAD

(Street)

KILGORE TX 75662

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MARTIN MIDSTREAM PARTNERS L.P. [ MMLP ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
11/25/2025

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
Common Units	11/25/2025		P		15,040	A	$2.5924	2,751,937.2337	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:

Remarks:

Martin Product Sales LLC ("Martin Product"), is a wholly owned subsidiary of Martin Resource Management Corporation ("MRMC"), and therefore, MRMC may be deemed to beneficially own the common units (the "Common Units") representing limited partner interests in Martin Midstream Partners L.P. (the "Partnership") held by Martin Product. Following the transaction, MRMC will directly or indirectly own 7,845,204.23371 Common Units, including the Common Units directly held by Martin Product, and has control of the general partner of the Partnership by virtue of its owning 100% of the equity interests of the sole member of the Partnership's general partner.

	/s/ Sharon L. Taylor, Executive Vice President and Chief Financial Officer	11/25/2025
	** 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 insider transaction was reported for MMLP on this Form 4?

The filing reports that a 10% owner purchased 15,040 Common Units of Martin Midstream Partners L.P. on 11/25/2025 at $2.5924 per unit.

How many Martin Midstream Partners (MMLP) units does the reporting person own after the trade?

Following the reported transaction, the reporting person directly owns 2,751,937.2337 Common Units of Martin Midstream Partners L.P.

Who is the reporting person related to MMLP in this Form 4?

The remarks state that Martin Product Sales LLC is a wholly owned subsidiary of Martin Resource Management Corporation (MRMC), and MRMC may be deemed to beneficially own the Common Units held by Martin Product.

What is MRMC’s total beneficial ownership of MMLP units after this transaction?

After the transaction, Martin Resource Management Corporation will directly or indirectly own 7,845,204.23371 Common Units of Martin Midstream Partners L.P.

What is the relationship of the reporting person to Martin Midstream Partners (MMLP)?

The reporting person is identified as a 10% Owner of Martin Midstream Partners L.P. and has control of the general partner of the partnership through its ownership structure.

Was this MMLP insider trade filed by one or multiple reporting persons?

The Form 4 indicates it is a Form filed by One Reporting Person, not a joint filing by multiple insiders.