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Lawrence Michael Ziemba Insider Profile

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Lawrence Michael Ziemba, Director at Plains GP Holdings, holds 95.18K shares in Plains GP Holdings (Ticker: PAGP), holds 0.00 shares in Plains All American (Ticker: PAA), holds 21.02K shares in PBF Energy (Ticker: PBF).
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Lawrence Michael Ziemba

Lawrence Michael Ziemba
Plains GP Holdings (PAGP)
Director

Ranked #71,877 out of 108,921 Corporate Insiders

Profitable Transactions

20%
1 out of 5 Profitable Transactions

Average Return

-9.30%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$20M
78.80%
13.34%
7.85%
0.00%
A breakdown of Lawrence Michael Ziemba's holdings
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Insider Roles

Phillips 66
(PSX)
Executive VP, Refining
Plains GP Holdings
(PAGP)
Director
PBF Energy
(PBF)
Director
Plains All American
(PAA)
Director
Roles that Lawrence Michael Ziemba holds in companies
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Most Profitable Insider Trade

Stock:
Phillips 66
(PSX)
Rating:Informative Sell
Date:Nov 06, 2015 - Nov 06, 2016
Return:+12.70%
The most profitable trade made by Lawrence Michael Ziemba
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Lawrence Michael Ziemba's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
PAGP
Plains GP Holdings
Aug 17, 2026
Director
Uninformative Buy
191.22K
$2.65M
PBFX
PBF Logistics
Nov 30, 2022
―
Uninformative Sell
―
$0.00
PBF
PBF Energy
Apr 30, 2026
Director
Uninformative Buy
―
$1.56M
PAA
Plains All American
Jun 30, 2026
Director
Informative Sell
51.49K
$0.00
PSX
Phillips 66
Apr 05, 2017
Executive VP, Refining
Uninformative Buy
680.18K
$15.68M
List of latest transactions for each holding click on a transaction to see Lawrence Michael Ziemba's performance on stock
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Lawrence Michael Ziemba insider profile FAQ

What is the percentage of profitable transactions made by Lawrence Michael Ziemba?
The percentage of profitable transactions made by Lawrence Michael Ziemba is 20%.
    What is the average return per transaction made by Lawrence Michael Ziemba?
    The average return per transaction made by Lawrence Michael Ziemba is -9.30%.
      What stocks does Lawrence Michael Ziemba hold?
      Lawrence Michael Ziemba holds: PAGP, PBFX, PBF, PAA, PSX stocks.
        What was Lawrence Michael Ziemba’s latest transaction?
        Lawrence Michael Ziemba latest transaction was an Uninformative Buy of $191.22K.
          What was Lawrence Michael Ziemba's most profitable transaction?
          Lawrence Michael Ziemba’s most profitable transaction was an Informative Sell of PSX stock on November 6, 2015. The return on the trade was 12.70%.
            What is Lawrence Michael Ziemba's role in Plains GP Holdings?
            Lawrence Michael Ziemba's role in Plains GP Holdings 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.