Insider trade

Officer sold ~$875K of MPC shares in the open market

Traded Aug 13, 2026 · Filed Aug 17, 2026

~$875K
Reported value · 2,500 sh @ $350.00: 13K
Holds after · shares reported: +17.9%
stock since the trade · S&P 500 -1.8%, $356.37 → $420.15 on Oct 1

Why it stands out

Marathon Petroleum's SVP Log & Storage, MPLX GP LLC sold $875K of Marathon Petroleum shares. Nobody planned it ahead of time.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Aug 13, 2026
Reporting period: Not applicable
Filed with the SEC: Aug 17, 2026

Officer$500K–$1M

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$875,000

Shares × reported transaction price

Timing vs results

9 days after results of Aug 4, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $356.37 on Aug 13, 2026, at its 52-week high, after a 35% rise over the previous 30 trading days

52-week range $162.32 (Aug 14, 2025) to $356.37 (Aug 13, 2026), 100% of the way up, from 251 adjusted closes. 30 trading days earlier: $264.87 on Jul 1, 2026. Describes the past only, not a forecast

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	-3.1%	-0.2%	-2.9%
30 days	+15.2%	-0.6%	+15.8%

Past results only. Not a forecast.

Source receipt

Record ID: 0001193125-26-354289
Filed / recorded: Aug 17, 2026, 9:14 PM UTC
Added to OQRO: Oct 2, 2026, 12:28 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: Marathon Petroleum Corp
Issuer CIK: 1510295
Ticker: MPC
Reporting person: Shawn M Lyon
Relationship: Officer
Officer title: SVP Log & Storage, MPLX GP LLC
Security: Common Stock
Table: Non-derivative (Table I)
Transaction date: Aug 13, 2026
Transaction code: S
Shares / units: 2,500
Price per share: $350.00
Acquired / disposed: Disposed (D)
Shares owned after: 12,619
Ownership form: Direct
Amendment: No

Around the same time

Officer sold5w ago

~$157KReported value · 425 sh @ $368.51

Marathon Petroleum's SVP Log & Storage, MPLX GP LLC sold $157K of Marathon Petroleum shares. Nobody planned it ahead of time.

Why it stands out Official record

Officer sold5w ago

~$376KReported value · 1,000 sh @ $375.75

Marathon Petroleum's SVP Log & Storage, MPLX GP LLC sold $376K of Marathon Petroleum shares. Nobody planned it ahead of time.

Why it stands out Official record

Officer sold5w ago

~$207KReported value · 570 sh @ $362.79

Marathon Petroleum's VP and Controller sold $207K of Marathon Petroleum shares. Nobody planned it ahead of time.

Why it stands out Official record