MPLX LP director granted 2,696 equity units

HELMS CHRISTOPHER A reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 08/05/2026 - 04:12 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

HELMS CHRISTOPHER A reported acquisition or exercise transactions in this Form 4 filing.

MPLX LP director Christopher A. Helms received a grant of 2,696.387 Common Units (limited partner interests) as his annual 2026 equity retainer award on April 30, 2026. This amendment corrects the award amount and reports 83,447.484 common units beneficially owned as of that date, excluding any later transactions.

Insider Trade Summary

Grant/Award: 2,696.387 shares

Grant/Award 1 txn

Insider HELMS CHRISTOPHER A

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Units (Limited Partner Interests) F1, F2, F3	2,696.387	$0.00	$0.00

Holdings After Transaction: Common Units (Limited Partner Interests) — 83,447.484 shares (Direct)

Footnotes (3)

1. F1. Represents the reporting person's annual 2026 equity retainer award.
2. F2. This Form 4 is being amended to reflect the correct amount of the annual 2026 equity retainer award.
3. F3. This amount reflects the correct balance of securities beneficially owned as of April 30, 2026. This balance does not include any transactions that occurred after April 30, 2026.

Key Figures

Equity retainer award: 2,696.387 common units Post-award holdings: 83,447.484 common units Grant price per unit: $0.0000 +1 more

4 metrics

Equity retainer award 2,696.387 common units Annual 2026 equity retainer grant to director Christopher A. Helms on April 30, 2026

Post-award holdings 83,447.484 common units Beneficially owned by Christopher A. Helms as of April 30, 2026

Grant price per unit $0.0000 Reported price per unit for the 2026 equity retainer award

Transaction date April 30, 2026 Date of the equity award and holdings balance reference

Key Terms

Common Units (Limited Partner Interests), annual 2026 equity retainer award, beneficially owned, general partner

4 terms

Common Units (Limited Partner Interests) financial

"Security title reported as Common Units (Limited Partner Interests) for the award"

annual 2026 equity retainer award financial

"Represents the reporting person's annual 2026 equity retainer award"

beneficially owned regulatory

"This amount reflects the correct balance of securities beneficially owned as of April 30, 2026"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

general partner financial

"MPLX GP LLC, the general partner of the Issuer"

A general partner is the person or firm that runs an investment partnership and legally represents it — they make the day-to-day decisions, choose which assets to buy or sell, and are responsible for the partnership’s obligations. Investors care because the general partner’s judgment, risk-taking and fee and profit-sharing arrangements determine both the potential returns and the level of exposure to losses; think of the GP as the ship’s captain whose skill and honesty shape the voyage’s outcome.

FAQ

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

What insider transaction did MPLX (MPLX) report for Christopher A. Helms?

Christopher A. Helms received a grant of 2,696.387 MPLX common units on April 30, 2026 as his annual 2026 equity retainer award. The units are reported as directly owned common units (limited partner interests) in MPLX LP.

Why was this Form 4/A for MPLX (MPLX) filed as an amendment?

The Form 4/A was filed to correct the amount of Helms’s annual 2026 equity retainer award. The amendment also updates the balance of securities beneficially owned as of April 30, 2026, based on the corrected grant information.

How many MPLX (MPLX) units does Christopher A. Helms beneficially own after this award?

After the 2026 equity retainer grant, Helms is reported as beneficially owning 83,447.484 common units of MPLX LP. This figure reflects his holdings as of April 30, 2026 and does not include any transactions occurring after that date.

What type of security did Christopher A. Helms receive from MPLX (MPLX)?

Helms received Common Units (Limited Partner Interests) of MPLX LP, totaling 2,696.387 units as his 2026 equity retainer award. These units represent an equity interest in the partnership and are reported as directly owned following the grant.

Was the MPLX (MPLX) insider award to Christopher A. Helms a cash purchase?

No. The transaction reports a price per unit of $0.0000, indicating it was a grant or award rather than a cash purchase. It is described as Helms’s annual 2026 equity retainer, typical of non-cash director compensation.

Does the MPLX (MPLX) filing state if the Helms transaction used a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as a plan transaction. There is no indication that the 2,696.387-unit equity retainer award for 2026 was executed under a pre-arranged Rule 10b5-1 trading plan.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

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^*

HELMS CHRISTOPHER A

(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)
04/30/2026

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)
05/04/2026

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)	04/30/2026		A		2,696.387(1)(2)	A	$0	83,447.484(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. Represents the reporting person's annual 2026 equity retainer award.

2. This Form 4 is being amended to reflect the correct amount of the annual 2026 equity retainer award.

3. This amount reflects the correct balance of securities beneficially owned as of April 30, 2026. This balance does not include any transactions that occurred after April 30, 2026.

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 Christopher A. Helms	08/05/2026
	** 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)