Lyon Shawn M
SVP Log & Storage, MPLX GP LLC
Lyon Shawn M has filed 7 SEC Form 4 filings (14 transaction rows) across 2 companies, including MPC, MPLX, with disclosures dating back to 2025. 7 of those filings fall inside the rolling window. Most recent filing: Sep 1, 2026.
On the most recent filing, Lyon Shawn M is listed as SVP Log & Storage, MPLX GP LLC at Marathon Petroleum Corp. Inside the rolling window, Lyon Shawn M reported no open-market purchases and 3 open-market sales totaling $1.4M in MPC. The largest disclosed transaction in the window is a sale of 2,500 MPC shares on Aug 13, 2026, worth $875K.
Companies traded
Other insiders at MPC
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.4M
reported sales (SEC code S)
Companies
2
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Lyon Shawn M made?
Lyon Shawn M has filed 7 SEC Form 4 filings (14 transaction rows) across 2 companies, including MPC, MPLX since 2025.
Which companies does Lyon Shawn M trade?
Lyon Shawn M has filed SEC Form 4 disclosures for 2 companies, including MPC, MPLX.
When was Lyon Shawn M's most recent SEC Form 4 filing?
Lyon Shawn M's most recent SEC Form 4 filing on Tracefour is dated Sep 1, 2026.
What is Lyon Shawn M's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Lyon Shawn M is listed as SVP Log & Storage, MPLX GP LLC.
What is Lyon Shawn M's total buy and sell value in the current window?
Inside the rolling retention window, Lyon Shawn M bought $0 and sold $1.4M based on SEC Form 4 filings.
What was Lyon Shawn M's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 2,500 MPC shares on 2026-08-13, worth $875K, per SEC Form 4 filings.