Insider trade

Officer sold ~$157K of MPC shares in the open market

Traded Aug 28, 2026 · Filed Sep 1, 2026

~$157K
Reported value · 425 sh @ $368.51: 12K
Holds after · shares reported: +13.9%
stock since the trade · S&P 500 -0.7%, $368.83 → $420.15 on Oct 1

Why it stands out

Marathon Petroleum's SVP Log & Storage, MPLX GP LLC sold $157K 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 28, 2026
Reporting period: Not applicable
Filed with the SEC: Sep 1, 2026

Officer$100K–$500K

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$156,617

Shares × reported transaction price

Timing vs results

24 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 $368.83 on Aug 28, 2026, at its 52-week high, after an 18% rise over the previous 30 trading days

52-week range $162.63 (Dec 31, 2025) to $368.83 (Aug 28, 2026), 100% of the way up, from 251 adjusted closes. 30 trading days earlier: $312.60 on Jul 17, 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	+3.2%	-0.4%	+3.6%

Past results only. Not a forecast.

Source receipt

Record ID: 0001193125-26-378519
Filed / recorded: Sep 1, 2026, 8:40 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 28, 2026
Transaction code: S
Shares / units: 425
Price per share: $368.51
Acquired / disposed: Disposed (D)
Shares owned after: 12,194
Ownership form: Direct
Amendment: No

Footnotes from the filing

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $368.43 to $368.53. The reporting person undertakes to provide to Marathon Petroleum Corporation, any security holder of Marathon Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote 1 to this Form 4.