// company-profile

Marathon Petroleum Corp Insider Trading

MPC

Every SEC Form 4 insider trading filing for Marathon Petroleum Corp (MPC) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.

ExchangeNYSESectorPetroleum RefiningInc.DEFilings199Insiders27
// api This Marathon Petroleum Corp insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
curl "https://api.form4api.com/v1/transactions?ticker=MPC" -H "X-Api-Key: YOUR_API_KEY"

// activity-summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $283K across 1 transaction.

// 90-day insight

Over the last 90 days, Marathon Petroleum Corp insiders bought $248K (2 transactions) and sold $2.2M (4 transactions).

  • Most active insider: Henschen Michael A II with 4 transactions totaling $2.0M.
  • Largest single sale: $1.3M by Henschen Michael A II on Jun 4, 2026.

Activity skews bearish — sales outpace buys.

Institutional Ownership

Top 13F-HR holders of Marathon Petroleum Corp as of 2026-06-30

↓ decreasing
Total reported AUM
$18.53B
QoQ change
-61.0%
Reporting period
2026-06-30
#1
STATE STREET CORP
CIK 93751
$4.72B
18.5M shares
#2
BlackRock, Inc.
CIK 2012383
$2.79B
10.9M shares
#3
BlackRock, Inc.
CIK 2012383
$1.57B
6.2M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Aug 3, 2026Mannen Maryann T.MPC
Tax Withholding
908$311.78$283K
Jun 4, 2026Henschen Michael A IIMPC
Sale
4,964$268.85$1.33M
Jun 4, 2026Henschen Michael A IIMPC
Option Exercise
4,964$0.00$0K
Jun 4, 2026Henschen Michael A IIMPC
Sale
1,372$268.75$369K
Jun 4, 2026Henschen Michael A IIMPC
Option Exercise
4,964$49.94$248K

45 more transactions hidden

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