MPLX director granted 982 units in equity award

MPLX LP (MPLX) reported that director J. Michael Stice received a grant of 982.715 Common Units (Limited Partner Interests) on 2026-08-14 at a stated price of $0.0000 per unit, described as a grant/award acquisition.

Rhea-AI Filing Summary

MPLX LP (MPLX) reported that director J. Michael Stice received a grant of 982.715 Common Units (Limited Partner Interests) on 2026-08-14 at a stated price of $0.0000 per unit, described as a grant/award acquisition. Following this grant, he holds 58,412.913 units directly and 700 units indirectly through The Mike Stice Trust.

Insider Trade Summary

Grant/Award: 982.715 shares

Grant/Award 2 txns

Insider STICE J MICHAEL

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Units (Limited Partner Interests)	982.715	$0.00	$0.00
holding	Common Units (Limited Partner Interests)	--	--	--

Holdings After Transaction: Common Units (Limited Partner Interests) — 58,412.913 shares (Direct); Common Units (Limited Partner Interests) — 700 shares (Indirect, The Mike Stice Trust)

Key Figures

Units granted: 982.715 Common Units (Limited Partner Interests) Grant price per unit: $0.0000 per unit Direct holdings after transaction: 58,412.913 units +1 more

4 metrics

Units granted 982.715 Common Units (Limited Partner Interests) Grant, award, or other acquisition on 2026-08-14

Grant price per unit $0.0000 per unit Stated transaction price for the 982.715-unit grant

Direct holdings after transaction 58,412.913 units Common Units owned directly by J. Michael Stice following the grant

Indirect holdings after transaction 700.0000 units Common Units held indirectly through The Mike Stice Trust

Key Terms

Common Units (Limited Partner Interests), indirect, grant, award, or other acquisition

3 terms

Common Units (Limited Partner Interests) financial

"security_title: Common Units (Limited Partner Interests)"

indirect financial

"ownership_type: indirect through The Mike Stice Trust"

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did MPLX (MPLX) disclose for J. Michael Stice?

MPLX disclosed that director J. Michael Stice received a grant of 982.715 Common Units on 2026-08-14. The transaction is coded as a grant, award, or other acquisition, with a stated per-unit price of $0.0000, indicating a compensation-type award.

How many MPLX (MPLX) units does J. Michael Stice own after this Form 4 transaction?

After the reported grant, J. Michael Stice holds 58,412.913 MPLX Common Units directly. He also has 700 units held indirectly through The Mike Stice Trust, bringing his reported total exposure in this filing to 59,112.913 units.

Was the MPLX (MPLX) insider grant to J. Michael Stice a market purchase or a compensation award?

The transaction is coded as “Grant, award, or other acquisition” (code A), not a market purchase. The per-unit price is shown as $0.0000, consistent with a compensation or board-related equity award rather than an open-market buy.

Does J. Michael Stice hold any MPLX (MPLX) units indirectly?

Yes. In addition to his direct holdings, the filing reports 700 MPLX Common Units held indirectly through The Mike Stice Trust. This indirect position is shown as a holding entry, separate from his directly owned units.

Was the MPLX (MPLX) insider transaction made under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox as not checked, so the transaction is not affirmed as made under a Rule 10b5-1 trading plan. The filing does not describe it as pre-arranged under such a plan.

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

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Available on EDGAR 08/18/2026 - 04:46 PM Accepted by SEC EDGAR 08/18/2026 - 04:46 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

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^*

STICE J MICHAEL

(Last) (First) (Middle)

C/O MPLX LP

200 E. HARDIN STREET

(Street)

FINDLAY OHIO 45840

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MPLX LP [ MPLX ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/14/2026

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 Units (Limited Partner Interests)	08/14/2026		A		982.715	A	$0	58,412.913	D
Common Units (Limited Partner Interests)								700	I	The Mike Stice Trust

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:

The Reporting Person is a Director of MPLX GP LLC, the general partner of the Issuer. The Issuer is managed by the directors and executive officers of MPLX GP LLC.

	/s/ Molly R. Benson, Attorney-in-Fact for J. Michael Stice	08/18/2026
	** 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)