Director Frank Semple granted additional MPLX (NYSE: MPLX) common units

Rhea-AI Filing Summary

MPLX LP director Frank M. Semple reported an equity award of common units. On February 17, 2026, he acquired 1,071.818 common units of MPLX LP as a grant, bringing his directly held units to 58,172.334. Additional common units are reported as indirectly held through several trusts and an LLC.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider SEMPLE FRANK M

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Units (Limited Partner Interests)	1,071.818	$0.00	--
holding	Common Units (Limited Partner Interests)	--	--	--
holding	Common Units (Limited Partner Interests)	--	--	--
holding	Common Units (Limited Partner Interests)	--	--	--

Holdings After Transaction: Common Units (Limited Partner Interests) — 58,172.334 shares (Direct); Common Units (Limited Partner Interests) — 333,337 shares (Indirect, Frank M Semple Revocable Trust)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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^*

SEMPLE FRANK M

(Last) (First) (Middle)

C/O MPLX LP

200 E. HARDIN STREET

(Street)

FINDLAY OH 45840

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

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 (Limited Partner Interests)	02/17/2026		A		1,071.818	A	$0	58,172.334	D
Common Units (Limited Partner Interests)								333,337	I	Frank M Semple Revocable Trust
Common Units (Limited Partner Interests)								111,180	I	Robin Y Semple 2012 Dynasty Trust
Common Units (Limited Partner Interests)								48,777	I	EK Holdings LLC

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 Frank M. Semple	02/19/2026
	** 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.

FAQ

What insider transaction did MPLX (MPLX) director Frank M. Semple report?

Frank M. Semple reported receiving a grant of 1,071.818 common units of MPLX LP on February 17, 2026. This award increased his directly held common units to 58,172.334, as disclosed in the Form 4 filing.

Was the MPLX (MPLX) insider transaction a purchase or a grant?

The transaction was a grant or award, not an open-market purchase. The Form 4 identifies it with transaction code A, meaning a grant, award, or other acquisition of 1,071.818 common units at a reported price of 0.0000 per unit.

How many MPLX (MPLX) units does Frank M. Semple hold directly after the grant?

After the reported grant, Frank M. Semple directly holds 58,172.334 common units of MPLX LP. This figure reflects only his direct ownership and excludes units reported as indirectly held through trusts and an LLC.

What indirect MPLX (MPLX) holdings are associated with Frank M. Semple?

The filing lists indirect holdings in MPLX common units through the Frank M Semple Revocable Trust, the Robin Y Semple 2012 Dynasty Trust, and EK Holdings LLC. Each entity reports its own total units following the transactions on February 17, 2026.

Does the MPLX (MPLX) Form 4 show any insider sales by Frank M. Semple?

The Form 4 does not show any sales. It reports one acquisition via grant of 1,071.818 common units and several indirect holdings entries with updated totals, but no transactions coded as sales or dispositions.

What does transaction code A mean in the MPLX (MPLX) Form 4?

Transaction code A indicates a grant, award, or other acquisition of securities. In this case, it reflects the awarding of 1,071.818 MPLX common units to Frank M. Semple, rather than a market purchase or sale.