Margaret B Shannon

Insider

First SEC filing: Dec. 7, 2012 · Latest: Dec. 7, 2012

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 43 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

43 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 24, 2024	PWR	M	971	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 24, 2024	PWR	M	971	—	—	35,034 Direct	+2.85%	Acquired	(price as of 2026-08-21)
March 1, 2024	PWR	S	8,515	$239.92	$2,042,919	34,063 Direct	-20.00%	Disposed	174.6% (price as of 2026-08-21)
June 1, 2023	PWR	M	1,393	—	—	971 Direct	-58.93%	Disposed	(price as of 2026-08-21)
June 1, 2023	PWR	M	1,393	—	—	42,578 Direct	+3.38%	Acquired	(price as of 2026-08-21)
May 23, 2023	PWR	A	971	—	—	2,364 Direct	+69.71%	Acquired	(price as of 2026-08-21)
June 1, 2022	PWR	M	1,563	—	—	1,393 Direct	-52.88%	Disposed	(price as of 2026-08-21)
June 1, 2022	PWR	M	1,563	—	—	41,185 Direct	+3.94%	Acquired	(price as of 2026-08-21)
May 27, 2022	PWR	A	1,393	—	—	2,956 Direct	+89.12%	Acquired	(price as of 2026-08-21)
June 1, 2021	PWR	M	4,425	—	—	1,563 Direct	-73.90%	Disposed	(price as of 2026-08-21)
June 1, 2021	PWR	M	4,425	—	—	39,622 Direct	+12.57%	Acquired	(price as of 2026-08-21)
May 27, 2021	PWR	A	1,563	—	—	5,988 Direct	+35.32%	Acquired	(price as of 2026-08-21)
May 28, 2020	PWR	A	4,425	—	—	4,425 Direct	—	Acquired	(price as of 2026-08-21)
May 28, 2020	PWR	M	3,985	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 28, 2020	PWR	M	3,985	—	—	35,197 Direct	+12.77%	Acquired	(price as of 2026-08-21)
May 28, 2019	PWR	M	4,261	—	—	31,212 Direct	+15.81%	Acquired	(price as of 2026-08-21)
May 28, 2019	PWR	M	4,261	—	—	3,985 Direct	-51.67%	Disposed	(price as of 2026-08-21)
May 23, 2019	PWR	A	3,985	—	—	8,246 Direct	+93.52%	Acquired	(price as of 2026-08-21)
May 28, 2018	PWR	M	4,454	—	—	4,261 Direct	-51.11%	Disposed	(price as of 2026-08-21)
May 28, 2018	PWR	M	4,454	—	—	26,951 Direct	+19.80%	Acquired	(price as of 2026-08-21)
May 24, 2018	PWR	A	4,261	—	—	8,715 Direct	+95.67%	Acquired	(price as of 2026-08-21)
May 28, 2017	PWR	M	6,035	—	—	22,497 Direct	+36.66%	Acquired	(price as of 2026-08-21)
May 28, 2017	PWR	M	6,035	—	—	4,454 Direct	-57.54%	Disposed	(price as of 2026-08-21)
May 24, 2017	PWR	A	4,454	—	—	10,489 Direct	+73.80%	Acquired	(price as of 2026-08-21)
May 28, 2016	PWR	M	4,823	—	—	6,035 Direct	-44.42%	Disposed	(price as of 2026-08-21)
May 28, 2016	PWR	M	4,823	—	—	16,462 Direct	+41.44%	Acquired	(price as of 2026-08-21)
May 26, 2016	PWR	A	6,035	—	—	10,858 Direct	+125.13%	Acquired	(price as of 2026-08-21)
May 21, 2015	PWR	A	4,823	—	—	4,823 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 24, 2015	MTDR	A	1,086	—	—	61,283 Direct	+1.80%	Acquired	(price as of 2026-08-21)
Oct. 30, 2014	MTDR	A	995	—	—	60,197 Direct	+1.68%	Acquired	(price as of 2026-08-21)
July 31, 2014	MTDR	A	810	—	—	59,202 Direct	+1.39%	Acquired	(price as of 2026-08-21)
May 22, 2014	PWR	A	4,108	—	—	11,639 Direct	+54.55%	Acquired	(price as of 2026-08-21)
May 2, 2014	MTDR	A	816	—	—	58,392 Direct	+1.42%	Acquired	(price as of 2026-08-21)
March 7, 2014	MTDR	A	928	—	—	57,576 Direct	+1.64%	Acquired	(price as of 2026-08-21)
Nov. 5, 2013	MTDR	A	969	—	—	56,648 Direct	+1.74%	Acquired	(price as of 2026-08-21)
July 26, 2013	MTDR	A	1,454	—	—	55,679 Direct	+2.68%	Acquired	(price as of 2026-08-21)
May 23, 2013	PWR	A	4,845	—	—	7,531 Direct	+180.38%	Acquired	(price as of 2026-08-21)
May 3, 2013	MTDR	A	1,982	—	—	54,225 Direct	+3.79%	Acquired	(price as of 2026-08-21)
March 8, 2013	MTDR	A	2,306	—	—	52,243 Direct	+4.62%	Acquired	(price as of 2026-08-21)
Dec. 6, 2012	PWR	A	2,686	—	—	2,686 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 16, 2012	MTDR	P	1,200	$8.52	$10,224	49,937 Direct	+2.46%	Acquired	587.0% (price as of 2026-08-21)
Nov. 8, 2012	MTDR	A	2,224	—	—	48,737 Direct	+4.78%	Acquired	(price as of 2026-08-21)
Sept. 13, 2012	MTDR	A	1,825	—	—	46,513 Direct	+4.08%	Acquired	(price as of 2026-08-21)
June 29, 2012	MTDR	A	1,745	—	—	44,688 Direct	+4.06%	Acquired	(price as of 2026-08-21)
April 11, 2012	MTDR	A	1,701	—	—	42,943 Direct	+4.12%	Acquired	(price as of 2026-08-21)
Feb. 7, 2012	MTDR	P	16,667	$12.00	$200,004	41,242 Direct	+67.82%	Acquired	387.7% (price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 24, 2024	PWR	Restricted Stock Units	Common Stock (971)	—	—	971	Disposed
June 1, 2023	PWR	Restricted Stock Units	Common Stock (1,393)	—	—	1,393	Disposed
May 23, 2023	PWR	Restricted Stock Units	Common Stock (971)	—	—	971	Acquired
June 1, 2022	PWR	Restricted Stock Units	Common Stock (1,563)	—	—	1,563	Disposed
May 27, 2022	PWR	Restricted Stock Units	Common Stock (1,393)	—	—	1,393	Acquired
June 1, 2021	PWR	Restricted Stock Units	Common Stock (4,425)	—	—	4,425	Disposed
May 27, 2021	PWR	Restricted Stock Units	Common Stock (1,563)	—	—	1,563	Acquired
May 28, 2020	PWR	Restricted Stock Units	Common Stock (4,425)	—	—	4,425	Acquired
May 28, 2020	PWR	Restricted Stock Units	Common Stock (3,985)	—	—	3,985	Disposed
May 28, 2019	PWR	Restricted Stock Units	Common Stock (4,261)	—	—	4,261	Disposed
May 23, 2019	PWR	Restricted Stock Units	Common Stock (3,985)	—	—	3,985	Acquired
May 28, 2018	PWR	Restricted Stock Units	Common Stock (4,454)	—	—	4,454	Disposed
May 24, 2018	PWR	Restricted Stock Units	Common Stock (4,261)	—	—	4,261	Acquired
May 28, 2017	PWR	Restricted Stock Units	Common Stock (6,035)	—	—	6,035	Disposed
May 24, 2017	PWR	Restricted Stock Units	Common Stock (4,454)	—	—	4,454	Acquired
May 28, 2016	PWR	Restricted Stock Units	Common Stock (4,823)	—	—	4,823	Disposed
May 26, 2016	PWR	Restricted Stock Units	Common Stock (6,035)	—	—	6,035	Acquired
May 21, 2015	PWR	Restricted Stock Units	Common Stock (4,823)	—	—	4,823	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 3 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Dec. 7, 2012	PWR	Common Stock	0	Direct
Dec. 7, 2012	PWR	Common Stock	0	Direct
Feb. 1, 2012	MTDR	Class A Common Stock	24,575	Direct