MPLX
insider transactionsMPLX LP — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.
Net buy / sell volume
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Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
Director
$150.0K
3.9K sh · $38.70
Own +26%
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Grant·A
Director
$0
78 sh
Own +2%
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Grant·A
Director
$0
1.7K sh
Own +2%
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Grant·A
Director
$0
1.1K sh
Own +2%
-
Grant·A
Director
$0
1.2K sh
Own +2%
-
Grant·A
Director
$0
1.3K sh
Own +2%
-
Grant·A
Director
$0
1.4K sh
Own +2%
-
Grant·A
Director
$0
277 sh
Own +2%
-
Grant·A
Director
$0
2.2K sh
Own +129%
-
Grant·A
Director
$0
2.6K sh
Own +3%
-
Grant·A
Director
$0
2.6K sh
Own +5%
-
Grant·A
Director
$0
2.6K sh
Own +4%
-
Grant·A
Director
$0
2.2K sh
Own +4%
-
Grant·A
Director
$0
2.2K sh
Own +3%
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Grant·A
Director
$0
2.2K sh
Own +19%
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Grant·A
Director
$1.2K
28 sh · $43.57
Own +17%
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Grant·A
Director
$2.6K
60 sh · $43.57
Own +13%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 15, 2026 | Christine S Breves | Grant A | 3.9K | $150.0K |
| May 15, 2026 | Ray N Walker JR | Grant A | 78 | $0 |
| May 15, 2026 | John P Surma | Grant A | 1.7K | $0 |
| May 15, 2026 | Michael J Stice | Grant A | 1.1K | $0 |
| May 15, 2026 | Frank M Semple | Grant A | 1.2K | $0 |
| May 15, 2026 | Garry L. Peiffer | Grant A | 1.3K | $0 |
| May 15, 2026 | Christopher A Helms | Grant A | 1.4K | $0 |
| May 15, 2026 | Christine S Breves | Grant A | 277 | $0 |
| Apr 30, 2026 | Ray N Walker JR | Grant A | 2.2K | $0 |
| Apr 30, 2026 | John P Surma | Grant A | 2.6K | $0 |
| Apr 30, 2026 | Michael J Stice | Grant A | 2.6K | $0 |
| Apr 30, 2026 | Frank M Semple | Grant A | 2.6K | $0 |
| Apr 30, 2026 | Garry L. Peiffer | Grant A | 2.2K | $0 |
| Apr 30, 2026 | Christopher A Helms | Grant A | 2.2K | $0 |
| Apr 30, 2026 | Christine S Breves | Grant A | 2.2K | $0 |
| Apr 28, 2026 | Christine S Breves | Grant A | 28 | $1.2K |
| Apr 28, 2026 | Christine S Breves | Grant A | 60 | $2.6K |
About MPLX insider trading
This page tracks insider transactions for MPLX LP (MPLX) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.