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Frank Semple Insider Profile

4 Followers
Frank Semple, Director at MPLX, holds 555.24K shares in MPLX (Ticker: MPLX), holds 0.00 shares in Andeavor Logistics LP (Ticker: ANDX), holds ― shares in Tortoise Acquisition Corp (Ticker: SHLL.U).
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Frank Semple

Frank Semple
MPLX (MPLX)
Director

Not Ranked
Frank Semple has not reported sufficient informative transactions and therefore cannot be ranked.
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$38M
86.65%
13.35%
0.00%
A breakdown of Frank Semple's holdings
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Insider Roles

MPLX
(MPLX)
Director
Marathon Petroleum
(MPC)
Director
Tortoise Acquisition Corp
(SHLL.U)
Director
Roles that Frank Semple holds in companies
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Most Profitable Insider Trade

Currently, no data available
The most profitable trade made by Frank Semple
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Frank Semple's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
MPLX
MPLX
May 19, 2026
Director
Uninformative Buy
―
$33.28M
ANDX
Andeavor Logistics LP
Aug 01, 2019
―
Uninformative Sell
―
$0.00
SHLL.U
Tortoise Acquisition Corp
―
Director
―
―
MWE
Markwest Energy
Dec 08, 2015
―
Uninformative Sell
19.49M
$0.00
MPC
Marathon Petroleum
May 04, 2026
Director
Uninformative Buy
―
$5.13M
List of latest transactions for each holding click on a transaction to see Frank Semple's performance on stock
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Frank Semple insider profile FAQ

What is the percentage of profitable transactions made by Frank Semple?
The percentage of profitable transactions made by Frank Semple is ―.
    What is the average return per transaction made by Frank Semple?
    The average return per transaction made by Frank Semple is ―.
      What stocks does Frank Semple hold?
      Frank Semple holds: MPLX, ANDX, SHLL.U, MWE, MPC stocks.
        What was Frank Semple’s latest transaction?
        Frank Semple latest transaction was an Uninformative Buy of ―.
          What was Frank Semple's most profitable transaction?
          Frank Semple’s most profitable transaction was an Uninformative Buy of stock on ―. The return on the trade was ―.
            What is Frank Semple's role in MPLX?
            Frank Semple's role in MPLX is Director.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.