Skip to content
sellModerate cluster of 4

Shawn M Lyon sold $875k of MPC

SVP Log & Storage, MPLX GP LLC at Marathon Petroleum Corp. 2,500 shares at an average of $350.00, traded Aug 13, 2026, filed Aug 17, 2026.

Warning score
58
Value
$875k
2,500 shares
Holdings after
12,619
-17% from before
From 52-week low
+125%
low $158.19, close $355.40
From 52-week high
0%
high $355.40, as of Aug 13, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $875k at market
    +23
  • Share of holdings sold
    Sold 17% of holdings
    +5
  • Cluster
    4 insiders selling within 14 days
    +15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

MPCOct 13, 2026 · close 476.98
Since filing Aug 17, 2026: +33.5%SPY +0.9% · excess +32.6%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001193125-26-354289, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 13, 2026SOpen-market sale
Common Stock
-2,500$350.00$875k12,619Aug 17, 2026

Related signals

Other insiders at Marathon Petroleum Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
53Moderate
MPCsell 3
Marathon Petroleum Corp
Shawn M Lyon
SVP Log & Storage, MPLX GP LLC
$532k
1,425 shares
-11%
52Moderate
MPCsell 3
Marathon Petroleum Corp
Erin M Brzezinski
VP and Controller
$207k
570 shares
-27%
30Weak
MPCsell 410b5-1
Marathon Petroleum Corp
Molly R Benson
Chief Legal Ofc & Corp Sec
$6.2M
17,196 shares
-46%
65Notable
MPCsell 3
Marathon Petroleum Corp
Michael A Henschen II
Ex VP, Refining
$2.1M
6,011 shares
-36%
35Weak
MPCsell
Marathon Petroleum Corp
Michael A Henschen II
Ex VP, Refining
$1.7M
6,336 shares
-35%
33Weak
MPCsell
Marathon Petroleum Corp
Ricky D. Hessling
Chief Commercial Officer
$250k
1,000 shares
-13%
35Weak
MPCsell
Marathon Petroleum Corp
Ricky D. Hessling
Chief Commercial Officer
$371k
1,626 shares
-18%
40Moderate
MPCsell
Marathon Petroleum Corp
Ricky D. Hessling
Chief Commercial Officer
$644k
2,847 shares
-24%
45Moderate
MPCsell
Marathon Petroleum Corp
Michael A Henschen II
Ex VP, Refining
$1.1M
5,289 shares
-24%
15Weak
MPCsell10b5-1
Marathon Petroleum Corp
Molly R Benson
Chief Legal Ofc & Corp Sec
$1.8M
10,879 shares
-27%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Shawn M Lyon sold $875k of MPC | InsiderTell