Transaction · 0001193125-26-378519

Lyon Shawn M

Lyon Shawn M, SL, MGL, reported an open-market or private sale at Marathon Petroleum Corp involving 425.000000 shares for an estimated $156616.75. Reported holdings after the transaction were 12194.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SSL, MGL
MPCMarathon Petroleum Corp
Filing timeSep 01
Trade dateAug 28, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$373.32
Pre-filing
1mo ago -17.3%1w ago -3.4%1d ago -2.6%
Returns since
7d +0.0%30d +0.0%90d +0.0%180d +0.0%1y +0.0%

MPC price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
MPC since 2026-09-01Filed 2 days ago · 30 days of pre-filing context shaded
Loading…
Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001193125-26-378519
Common Stock
Transaction date
Aug 28, 2026
Filed Sep 01, 2026, 08:40 PM · 4d delay
Shares
425 sh
$36.8k per share
Estimated value
-$15.6M
Computed from shares × price
Holdings after
12.1k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Direct Ownership Repeat Seller
+6score
Filing-only score

+6

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

SVP Log & Storage, MPLX GP LLC

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    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 M…

Original filing · 0001193125-26-378519
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

MPC