Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Marathon Petroleum Corp

MPC · NYSE · CIK 0001510295 · Energy · Oil & Gas Refining & Marketing

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

24 Form 4 transaction lines observed in the same window
10 sales · 14 option, withholding, award, gift or other lines

Last qualifying purchase2025-03-11 · Hessling Ricky D. · $269.4K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Lyon Shawn MSVP Log & Storage, MPLX GP LLC
▼▼▼
Henschen Michael A IIEx VP, Refining
○▼▼
Benson Molly RChief Legal Ofc & Corp Sec
○▼
Brzezinski Erin MVP and Controller
▼
Hessling Ricky D.Chief Commercial Officer
▼
SURMA JOHN PDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 10 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-03-11 · Hessling Ricky D..

Recent Form 4 activity

0Purchases
16Sales
52Other Form 4 lines
37SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING10 sale line(s) · context only
OTHER14 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
7,039,952
Previous report
7,715,203
Avg daily volume
3,546,657
Days to cover
2.0

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2025-03-11Hessling Ricky D.Purchase (P)Common Stock2,000USD 134.72USD 269,440SEC filing ↗
2025-03-05Bayh EvanPurchase (P)Common Stock1,000USD 133.70USD 133,700SEC filing ↗
2024-12-04CAMPBELL JEFFREY CPurchase (P)Common Stock6,000USD 149.61USD 897,660SEC filing ↗
2021-11-24BUNCH CHARLES EPurchase (P)Common Stock1,000USD 64.30USD 64,300SEC filing ↗

Form 4 evidence

68 transaction lines in the latest 365-day window; 684 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-31Lyon Shawn MSale (S)Common Stock1,000USD 375.75USD 375,750SEC filing ↗
2026-08-28Lyon Shawn MSale (S)Common Stock425USD 368.51USD 156,617SEC filing ↗
2026-08-27Brzezinski Erin MSale (S)Common Stock570USD 362.79USD 206,790SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-31Lyon Shawn MSale (S)Common Stock1,000USD 375.75USD 375,750SEC filing ↗
2026-08-28Lyon Shawn MSale (S)Common Stock425USD 368.51USD 156,617SEC filing ↗
2026-08-27Brzezinski Erin MSale (S)Common Stock570USD 362.79USD 206,790SEC filing ↗
2026-08-17Benson Molly RSale (S)Common Stock12,196USD 358.57USD 4,373,120SEC filing ↗
2026-08-17Benson Molly ROption exercise / conversion (M)Common Stock12,196USD 47.73USD 582,115SEC filing ↗
2026-08-13Lyon Shawn MSale (S)Common Stock2,500USD 350.00USD 875,000SEC filing ↗
2026-08-12Henschen Michael A IISale (S)Common Stock6,011USD 341.56USD 2,053,117SEC filing ↗
2026-08-03Mannen Maryann T.Tax withholding (F)Common Stock908USD 311.78USD 283,096SEC filing ↗
2026-06-04Henschen Michael A IISale (S)Common Stock6,336USD 268.83USD 1,703,296SEC filing ↗
2026-06-04Henschen Michael A IIOption exercise / conversion (M)Common Stock4,964USD 49.94USD 247,902SEC filing ↗
2026-05-13Hessling Ricky D.Sale (S)Common Stock1,000USD 250.00USD 250,000SEC filing ↗
2026-04-30SURMA JOHN PAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30STICE J MICHAELAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30SEMPLE FRANK MAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30Rucker Kim K.W.Award / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30Paterson Eileen P.Award / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30Ellison-Taylor Kimberly NAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30COHEN JONATHAN ZAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30CAMPBELL JEFFREY CAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30Bayh EvanAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-04-30Al Khayyal Abdulaziz FahdAward / grant (A)Common Stock728USD 0.00USD 0SEC filing ↗
2026-03-13Hessling Ricky D.Sale (S)Common Stock1,626USD 228.18USD 371,021SEC filing ↗
2026-03-12Hessling Ricky D.Sale (S)Common Stock1,037USD 229.08USD 237,554SEC filing ↗
2026-03-11Lyon Shawn MGift (G)Common Stock1,186USD 0.00USD 0SEC filing ↗
2026-03-11Hessling Ricky D.Sale (S)Common Stock1,810USD 224.78USD 406,847SEC filing ↗
2026-03-02Mannen Maryann T.Tax withholding (F)Common Stock3,966USD 206.30USD 818,186SEC filing ↗
2026-03-02Lyon Shawn MTax withholding (F)Common Stock773USD 206.30USD 159,470SEC filing ↗
2026-03-02Hessling Ricky D.Gift (G)Common Stock2,028USD 0.00USD 0SEC filing ↗
2026-03-02Hessling Ricky D.Tax withholding (F)Common Stock786USD 206.30USD 162,152SEC filing ↗
2026-03-02Henschen Michael A IITax withholding (F)Common Stock481USD 206.30USD 99,230SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerMPC
CIK0001510295
SectorEnergy
IndustryOil & Gas Refining & Marketing Yahoo Finance
SEC SIC2911 Petroleum Refining
ExchangeNYSE

Data coverage

Local Form 4 history684 transaction lines from 2020-01-02 to 2026-08-31
4 P purchase lines · 76 S sale lines · 604 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.