Arkolith/Insider Trading/MPLX/Form 4

Mannen Maryann T.

Chairman, President & CEO, DirectorMPLX LP (MPLX) · full profile →Form 4 · filed Mar 3, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
4
4 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Mar 2, 2026Tax withholding(F)3K$59.22$202K175K
Mar 2, 2026Tax withholding(F)3K$59.22$202K172K
Mar 2, 2026Tax withholding(F)6K$59.22$380K165K
Mar 1, 2026Grant(A)53K—$0179K

Transaction Codes

F
Shares withheld for taxes
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001408964-26-000004) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML