Robert J Dwyer

Insider

First SEC filing: May 19, 2026 · Latest: May 19, 2026

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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.

Insider at

MTZ selling May 27, 2020

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 91 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

91 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2026	MTZ	A	139	—	—	20,991 Direct	+0.67%	Acquired	(price as of 2026-08-20)
Aug. 14, 2026	MTZ	F	31	$297.59	$9,225	20,960 Direct	-0.15%	Disposed	-9.3% (price as of 2026-08-20)
May 15, 2026	MTZ	F	21	$434.77	$9,130	20,852 Direct	-0.10%	Disposed	-37.9% (price as of 2026-08-20)
May 15, 2026	MTZ	A	95	—	—	20,873 Direct	+0.46%	Acquired	(price as of 2026-08-20)
Feb. 13, 2026	MTZ	F	34	$269.53	$9,164	20,778 Direct	-0.16%	Disposed	0.1% (price as of 2026-08-20)
Feb. 13, 2026	MTZ	A	154	—	—	20,812 Direct	+0.75%	Acquired	(price as of 2026-08-20)
Nov. 14, 2025	MTZ	F	48	$192.22	$9,227	20,658 Direct	-0.23%	Disposed	40.4% (price as of 2026-08-20)
Nov. 14, 2025	MTZ	A	215	—	—	20,706 Direct	+1.05%	Acquired	(price as of 2026-08-20)
Aug. 15, 2025	MTZ	F	52	$178.00	$9,256	20,491 Direct	-0.25%	Disposed	51.6% (price as of 2026-08-20)
Aug. 15, 2025	MTZ	A	232	—	—	20,543 Direct	+1.14%	Acquired	(price as of 2026-08-20)
Feb. 14, 2025	MTZ	F	67	$135.78	$9,097	20,106 Direct	-0.33%	Disposed	98.7% (price as of 2026-08-20)
Feb. 14, 2025	MTZ	A	304	—	—	20,173 Direct	+1.53%	Acquired	(price as of 2026-08-20)
Nov. 15, 2024	MTZ	F	68	$135.32	$9,202	19,869 Direct	-0.34%	Disposed	99.4% (price as of 2026-08-20)
Nov. 15, 2024	MTZ	A	305	—	—	19,937 Direct	+1.55%	Acquired	(price as of 2026-08-20)
Aug. 15, 2024	MTZ	F	83	$110.78	$9,195	19,632 Direct	-0.42%	Disposed	143.6% (price as of 2026-08-20)
Aug. 15, 2024	MTZ	A	373	—	—	19,715 Direct	+1.93%	Acquired	(price as of 2026-08-20)
May 15, 2024	MTZ	F	83	$106.99	$8,880	19,342 Direct	-0.43%	Disposed	152.2% (price as of 2026-08-20)
May 15, 2024	MTZ	A	373	—	—	19,425 Direct	+1.96%	Acquired	(price as of 2026-08-20)
Feb. 15, 2024	MTZ	F	121	$72.98	$8,831	19,052 Direct	-0.63%	Disposed	269.7% (price as of 2026-08-20)
Feb. 15, 2024	MTZ	A	547	—	—	19,173 Direct	+2.94%	Acquired	(price as of 2026-08-20)
Nov. 15, 2023	MTZ	F	164	$53.68	$8,804	18,626 Direct	-0.87%	Disposed	402.6% (price as of 2026-08-20)
Nov. 15, 2023	MTZ	A	743	—	—	18,790 Direct	+4.12%	Acquired	(price as of 2026-08-20)
Aug. 15, 2023	MTZ	F	94	$93.79	$8,816	18,047 Direct	-0.52%	Disposed	187.7% (price as of 2026-08-20)
Aug. 15, 2023	MTZ	A	426	—	—	18,141 Direct	+2.40%	Acquired	(price as of 2026-08-20)
May 15, 2023	MTZ	F	91	$97.05	$8,832	17,715 Direct	-0.51%	Disposed	178.0% (price as of 2026-08-20)
May 15, 2023	MTZ	A	411	—	—	17,806 Direct	+2.36%	Acquired	(price as of 2026-08-20)
Feb. 15, 2023	MTZ	F	88	$99.72	$8,775	17,395 Direct	-0.50%	Disposed	170.6% (price as of 2026-08-20)
Feb. 15, 2023	MTZ	A	400	—	—	17,483 Direct	+2.34%	Acquired	(price as of 2026-08-20)
Nov. 15, 2022	MTZ	F	96	$92.09	$8,841	17,083 Direct	-0.56%	Disposed	193.0% (price as of 2026-08-20)
Nov. 15, 2022	MTZ	A	434	—	—	17,179 Direct	+2.59%	Acquired	(price as of 2026-08-20)
Aug. 15, 2022	MTZ	F	107	$82.23	$8,799	16,745 Direct	-0.63%	Disposed	228.1% (price as of 2026-08-20)
Aug. 15, 2022	MTZ	A	485	—	—	16,852 Direct	+2.96%	Acquired	(price as of 2026-08-20)
May 13, 2022	MTZ	F	91	$77.74	$7,074	16,367 Direct	-0.55%	Disposed	247.1% (price as of 2026-08-20)
May 13, 2022	MTZ	A	411	—	—	16,458 Direct	+2.56%	Acquired	(price as of 2026-08-20)
Feb. 15, 2022	MTZ	F	76	$92.88	$7,059	16,047 Direct	-0.47%	Disposed	190.5% (price as of 2026-08-20)
Feb. 15, 2022	MTZ	A	344	—	—	16,123 Direct	+2.18%	Acquired	(price as of 2026-08-20)
Nov. 15, 2021	MTZ	F	76	$93.74	$7,124	15,779 Direct	-0.48%	Disposed	187.8% (price as of 2026-08-20)
Nov. 15, 2021	MTZ	A	341	—	—	15,855 Direct	+2.20%	Acquired	(price as of 2026-08-20)
Aug. 13, 2021	MTZ	F	76	$93.21	$7,084	15,514 Direct	-0.49%	Disposed	189.5% (price as of 2026-08-20)
Aug. 13, 2021	MTZ	A	343	—	—	15,590 Direct	+2.25%	Acquired	(price as of 2026-08-20)
May 14, 2021	MTZ	F	60	$118.41	$7,105	15,247 Direct	-0.39%	Disposed	127.9% (price as of 2026-08-20)
May 14, 2021	MTZ	A	270	—	—	15,307 Direct	+1.80%	Acquired	(price as of 2026-08-20)
March 4, 2021	MTZ	G	135	—	—	15,037 Direct	-0.89%	Disposed	(price as of 2026-08-20)
March 4, 2021	MTZ	G	1,115	—	—	15,172 Direct	-6.85%	Disposed	(price as of 2026-08-20)
Feb. 12, 2021	MTZ	F	82	$86.57	$7,099	16,287 Direct	-0.50%	Disposed	211.7% (price as of 2026-08-20)
Feb. 12, 2021	MTZ	A	369	—	—	16,369 Direct	+2.31%	Acquired	(price as of 2026-08-20)
Nov. 13, 2020	MTZ	F	131	$53.85	$7,054	16,000 Direct	-0.81%	Disposed	401.0% (price as of 2026-08-20)
Nov. 13, 2020	MTZ	A	593	—	—	16,131 Direct	+3.82%	Acquired	(price as of 2026-08-20)
Aug. 14, 2020	MTZ	F	152	$46.24	$7,028	15,538 Direct	-0.97%	Disposed	483.5% (price as of 2026-08-20)
Aug. 14, 2020	MTZ	A	690	—	—	15,690 Direct	+4.60%	Acquired	(price as of 2026-08-20)
May 27, 2020	MTZ	S	5,945	$41.09	$244,280	15,000 Direct	-28.38%	Disposed	556.6% (price as of 2026-08-20)
May 15, 2020	MTZ	F	213	$33.12	$7,055	20,945 Direct	-1.01%	Disposed	714.6% (price as of 2026-08-20)
May 15, 2020	MTZ	A	964	—	—	21,158 Direct	+4.77%	Acquired	(price as of 2026-08-20)
Feb. 14, 2020	MTZ	F	117	$60.50	$7,078	20,194 Direct	-0.58%	Disposed	346.0% (price as of 2026-08-20)
Feb. 14, 2020	MTZ	A	528	—	—	20,311 Direct	+2.67%	Acquired	(price as of 2026-08-20)
Nov. 15, 2019	MTZ	A	322	—	—	19,783 Direct	+1.65%	Acquired	(price as of 2026-08-20)
Nov. 4, 2019	MTZ	S	5,000	$70.54	$352,700	19,461 Direct	-20.44%	Disposed	282.5% (price as of 2026-08-20)
Aug. 15, 2019	MTZ	A	391	—	—	24,461 Direct	+1.62%	Acquired	(price as of 2026-08-20)
May 15, 2019	MTZ	A	483	—	—	24,070 Direct	+2.05%	Acquired	(price as of 2026-08-20)
May 6, 2019	MTZ	S	10,000	$51.66	$516,600	23,587 Direct	-29.77%	Disposed	422.3% (price as of 2026-08-20)
Feb. 15, 2019	MTZ	A	532	—	—	33,587 Direct	+1.61%	Acquired	(price as of 2026-08-20)
Nov. 15, 2018	MTZ	A	498	—	—	33,055 Direct	+1.53%	Acquired	(price as of 2026-08-20)
Aug. 15, 2018	MTZ	A	518	—	—	32,557 Direct	+1.62%	Acquired	(price as of 2026-08-20)
May 15, 2018	MTZ	A	473	—	—	32,039 Direct	+1.50%	Acquired	(price as of 2026-08-20)
Feb. 15, 2018	MTZ	A	457	—	—	31,566 Direct	+1.47%	Acquired	(price as of 2026-08-20)
Nov. 15, 2017	MTZ	A	579	—	—	31,109 Direct	+1.90%	Acquired	(price as of 2026-08-20)
Aug. 15, 2017	MTZ	A	578	—	—	30,530 Direct	+1.93%	Acquired	(price as of 2026-08-20)
May 15, 2017	MTZ	A	533	—	—	29,952 Direct	+1.81%	Acquired	(price as of 2026-08-20)
Feb. 15, 2017	MTZ	A	590	—	—	29,419 Direct	+2.05%	Acquired	(price as of 2026-08-20)
Nov. 15, 2016	MTZ	A	610	—	—	28,829 Direct	+2.16%	Acquired	(price as of 2026-08-20)
Nov. 14, 2016	MTZ	S	8,300	$35.11	$291,413	28,219 Direct	-22.73%	Disposed	668.5% (price as of 2026-08-20)
Nov. 14, 2016	MTZ	S	60	$35.00	$2,100	36,519 Direct	-0.16%	Disposed	670.9% (price as of 2026-08-20)
Nov. 14, 2016	MTZ	S	1,640	$36.14	$59,270	36,579 Direct	-4.29%	Disposed	646.6% (price as of 2026-08-20)
Aug. 15, 2016	MTZ	A	756	—	—	38,219 Direct	+2.02%	Acquired	(price as of 2026-08-20)
May 13, 2016	MTZ	A	2,585	—	—	37,463 Direct	+7.41%	Acquired	(price as of 2026-08-20)
March 21, 2016	MTZ	M	7,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 21, 2016	MTZ	S	5,860	$19.96	$116,966	34,878 Direct	-14.38%	Disposed	1251.8% (price as of 2026-08-20)
March 21, 2016	MTZ	M	7,500	$13.68	$102,600	40,738 Direct	+22.56%	Acquired	1872.3% (price as of 2026-08-20)
Feb. 15, 2016	MTZ	A	4,148	—	—	33,238 Direct	+14.26%	Acquired	(price as of 2026-08-20)
Nov. 13, 2015	MTZ	A	3,272	—	—	29,090 Direct	+12.67%	Acquired	(price as of 2026-08-20)
Aug. 14, 2015	MTZ	A	3,160	—	—	25,818 Direct	+13.95%	Acquired	(price as of 2026-08-20)
April 29, 2015	MTZ	A	3,166	—	—	22,658 Direct	+16.24%	Acquired	(price as of 2026-08-20)
April 9, 2015	MTZ	M	5,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 9, 2015	MTZ	F	2,207	$19.17	$42,308	19,492 Direct	-10.17%	Disposed	1307.5% (price as of 2026-08-20)
April 9, 2015	MTZ	M	5,000	$8.46	$42,300	21,699 Direct	+29.94%	Acquired	3089.2% (price as of 2026-08-20)
Feb. 13, 2015	MTZ	F	278	$20.75	$5,768	16,699 Direct	-1.64%	Disposed	1200.3% (price as of 2026-08-20)
Feb. 13, 2015	MTZ	A	1,114	—	—	16,977 Direct	+7.02%	Acquired	(price as of 2026-08-20)
Nov. 14, 2014	MTZ	F	230	$25.13	$5,780	15,863 Direct	-1.43%	Disposed	973.7% (price as of 2026-08-20)
Nov. 14, 2014	MTZ	A	920	—	—	16,093 Direct	+6.06%	Acquired	(price as of 2026-08-20)
Aug. 15, 2014	MTZ	F	201	$28.70	$5,769	15,173 Direct	-1.31%	Disposed	840.1% (price as of 2026-08-20)
Aug. 15, 2014	MTZ	A	805	—	—	15,374 Direct	+5.53%	Acquired	(price as of 2026-08-20)
May 15, 2014	MTZ	F	108	$39.06	$4,218	14,569 Direct	-0.74%	Disposed	590.8% (price as of 2026-08-20)
May 15, 2014	MTZ	A	434	—	—	14,677 Direct	+3.05%	Acquired	(price as of 2026-08-20)
March 4, 2014	MTZ	M	2,500	—	—	5,000 Direct	-33.33%	Disposed	(price as of 2026-08-20)
March 4, 2014	MTZ	M	5,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 4, 2014	MTZ	S 10b5-1	2,500	$41.56	$103,900	14,243 Direct	-14.93%	Disposed	549.2% (price as of 2026-08-20)
March 4, 2014	MTZ	M	2,500	$8.46	$21,150	16,743 Direct	+17.55%	Acquired	3089.2% (price as of 2026-08-20)
March 4, 2014	MTZ	S 10b5-1	5,000	$41.56	$207,800	14,243 Direct	-25.98%	Disposed	549.2% (price as of 2026-08-20)
March 4, 2014	MTZ	M	5,000	$7.09	$35,450	19,243 Direct	+35.10%	Acquired	3705.5% (price as of 2026-08-20)
Feb. 14, 2014	MTZ	F	108	$36.58	$3,951	14,243 Direct	-0.75%	Disposed	637.6% (price as of 2026-08-20)

Showing latest 100 of 159 transactions

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
March 21, 2016	MTZ	Non-Qualified Stock Option (right to buy) [F2]	Common Stock (7,500)	$13.68	June 1, 2016	7,500	Disposed
April 9, 2015	MTZ	Non-Qualified Stock Option (right to buy) [F1]	Common Stock (5,000)	$8.46	June 1, 2015	5,000	Disposed
March 4, 2014	MTZ	Non-Qualified Stock Option (right to buy)	Common Stock (2,500)	$8.46	June 1, 2015	2,500	Disposed
March 4, 2014	MTZ	Non-Qualified Stock Option (right to buy)	Common Stock (5,000)	$7.09	Nov. 1, 2014	5,000	Disposed
Sept. 2, 2011	MTZ	Non-Qualified Stock Option (right to buy)	Common Stock (15,000)	$7.09	Nov. 1, 2014	15,000	Disposed
June 1, 2006	MTZ	Non-Qualified Stock Option (right to buy)	Common Stock (7,500)	$13.68	June 1, 2016	7,500	Acquired
June 1, 2005	MTZ	Non-Qualified Stock Option (right to buy) [F1]	Common Stock (7,500)	$8.46	June 1, 2015	7,500	Acquired
Nov. 1, 2004	MTZ	Non-qualified Stock Option (right to buy) [F1]	Common Stock (20,000)	$7.09	Nov. 1, 2014	20,000	Acquired
Nov. 1, 2004	MTZ	Non-Qualified Stock Option (right to buy) [F1]	Common Stock (20,000)	$7.09	Nov. 1, 2014	20,000	Acquired

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