Insider · CIK 0002008021
Erin M Brzezinski
Files at MPC (Marathon Petroleum Corp). First filing Aug 31, 2026, latest Aug 31, 2026.
In brief
Erin M Brzezinski files SEC Form 4 as officer at MPC (Marathon Petroleum Corp). Since Aug 31, 2026, Erin M Brzezinski has reported 0 open-market buys worth $0 and 1 open-market sell worth $207k, the latest filed on Aug 31, 2026.
A track record needs three past buys with six months of prices behind them; Erin M Brzezinski has 0, so none is measured yet.
The newest scored trade: sold $207k of MPC on Aug 27, 2026, filed Aug 31, 2026, scored 52 (moderate). In the last 12 months: 0 buys worth $0 and 1 sell worth $207k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MPC: Marathon Petroleum Corp
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 52Moderate | Marathon Petroleum Corp | $207k 570 shares | -27% | +126% from low-0% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 27, 2026 | MPC Marathon Petroleum Corp | 570 0.00% of outstanding | $207k | Aug 27, 2026 | none |
Transactions
Every row this insider has filed, 9 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 27, 2026 | MPC Marathon Petroleum Corp | SOpen-market sale Common Stock | -570 | $362.79 | $207k | 1,576 | 43 d ago |
| Mar 1, 2026 | MPC Marathon Petroleum Corp | AGrant or award Common Stock | +509 | $0.00 | $0 | 2,296 | Mar 3, 2026 |
| Mar 2, 2026 | MPC Marathon Petroleum Corp | FTax withholding Common Stock | -49 | $206.30 | $10k | 2,247 | Mar 3, 2026 |
| Mar 2, 2026 | MPC Marathon Petroleum Corp | FTax withholding Common Stock | -42 | $206.30 | $8,665 | 2,205 | Mar 3, 2026 |
| Mar 2, 2026 | MPC Marathon Petroleum Corp | FTax withholding Common Stock | -59 | $206.30 | $12k | 2,146 | Mar 3, 2026 |
| Mar 1, 2025 | MPC Marathon Petroleum Corp | AGrant or award Common Stock | +590 | $0.00 | $0 | 1,960 | Mar 4, 2025 |
| Mar 3, 2025 | MPC Marathon Petroleum Corp | FTax withholding Common Stock | -80 | $148.65 | $12k | 1,880 | Mar 4, 2025 |
| Mar 3, 2025 | MPC Marathon Petroleum Corp | FTax withholding Common Stock | -50 | $148.65 | $7,433 | 1,830 | Mar 4, 2025 |
| Mar 3, 2025 | MPC Marathon Petroleum Corp | FTax withholding Common Stock | -43 | $148.65 | $6,392 | 1,787 | Mar 4, 2025 |
Questions about Erin M Brzezinski
Answered from the filings on this page, as of the latest one.
Is Erin M Brzezinski buying or selling?
In the last 12 months Erin M Brzezinski reported 0 open-market buys worth $0 and 1 open-market sell worth $207k on SEC Form 4; the latest was sold $207k of MPC on Aug 27, 2026. Grants, option exercises and tax withholding are not counted.
How did Erin M Brzezinski's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Erin M Brzezinski has 0.
Where does Erin M Brzezinski file Form 4?
Erin M Brzezinski has filed Form 4 at MPC (Marathon Petroleum Corp) as VP and Controller. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.