Ziemba Lawrence Michael

Director at PIONEER TAX ADVANTAGED BALANCED TRUST · on record since Apr 30, 2026
Executive VP, Refining at Phillips 66 · on record since Jul 13, 2012
Director at PLAINS GP HOLDINGS LP · on record since Jan 8, 2020
Director at PLAINS ALL AMERICAN PIPELINE LP · on record since Jan 8, 2020
Director at PBF Logistics LP · on record since Jan 3, 2020

Insider trading activity of Ziemba Lawrence Michael

Transactions on record: 107; since May 8, 2012

Open-market buys: 0

Open-market sells: 6; $23.6M

Companies traded: 5; last filing Jun 30, 2026

Figures computed from official regulatory filings — methodology.

Companies where Ziemba Lawrence Michael has traded

PLAINS ALL AMERICAN PIPELINE LP1 tx · Jun 30, 2026
PIONEER TAX ADVANTAGED BALANCED TRUST9 tx · $154K · Apr 30, 2026
PLAINS GP HOLDINGS LP25 tx · Aug 18, 2025
PBF Logistics LP19 tx · Nov 30, 2022
Phillips 6653 tx · $35.3M · Apr 5, 2017

Track record of Ziemba Lawrence Michael

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of Ziemba Lawrence Michael

Co-insiders of Ziemba Lawrence Michael

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Company	Filed	Type	Qty	Price	Value · USD	Src
PLAINS ALL AMERICAN PIPELINE LP	Jun 30, 2026	Sell	-2,346	21.95 USD	—	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	Apr 30, 2026	Other	-931	41.37 USD	$38.5K	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	Apr 30, 2026	Award	4,231	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	ExerciseD	-7,650	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	AwardD	7,400	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	ExerciseD	-11,900	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	Exercise	7,650	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	Exercise	11,900	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 1, 2025	Award	10,163	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 1, 2025	Other	-2,236	17.22 USD	$38.5K	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	AwardD	7,650	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	ExerciseD	-8,050	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	ExerciseD	-15,290	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	Exercise	15,290	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	Exercise	8,050	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 2, 2024	Other	-723	53.27 USD	$38.5K	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 2, 2024	Award	3,286	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 17, 2023	AwardD	8,050	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	Exercise	6,480	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	ExerciseD	-11,400	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	ExerciseD	-6,480	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	Exercise	11,400	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 5, 2023	Other	-1,186	32.45 USD	$38.5K	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 5, 2023	Award	5,393	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	Jan 5, 2023	Award	1,745	0.00 USD	$0	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
PLAINS ALL AMERICAN PIPELINE LP	Jun 30, 2026	Sell	-2,346	21.95 USD	—	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	Apr 30, 2026	Other	-931	41.37 USD	$38.5K	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	Apr 30, 2026	Award	4,231	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	ExerciseD	-7,650	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	AwardD	7,400	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	ExerciseD	-11,900	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	Exercise	7,650	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 18, 2025	Exercise	11,900	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 1, 2025	Award	10,163	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 1, 2025	Other	-2,236	17.22 USD	$38.5K	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	AwardD	7,650	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	ExerciseD	-8,050	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	ExerciseD	-15,290	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	Exercise	15,290	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 15, 2024	Exercise	8,050	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 2, 2024	Other	-723	53.27 USD	$38.5K	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 2, 2024	Award	3,286	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 17, 2023	AwardD	8,050	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	Exercise	6,480	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	ExerciseD	-11,400	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	ExerciseD	-6,480	0.00 USD	$0	SEC
PLAINS GP HOLDINGS LP	Aug 16, 2023	Exercise	11,400	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 5, 2023	Other	-1,186	32.45 USD	$38.5K	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	May 5, 2023	Award	5,393	0.00 USD	$0	SEC
PIONEER TAX ADVANTAGED BALANCED TRUST	Jan 5, 2023	Award	1,745	0.00 USD	$0	SEC