Alberto I De Cardenas

Insider

First SEC filing: March 20, 2026 · Latest: March 20, 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.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

MTZ selling Aug. 5, 2025

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 54 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

54 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 18, 2026	MTZ	A	6,269	—	—	102,780 Direct	+6.50%	Acquired	(price as of 2026-08-21)
March 10, 2026	MTZ	F	4,838	$297.81	$1,440,805	96,511 Direct	-4.77%	Disposed	-8.1% (price as of 2026-08-21)
Aug. 5, 2025	MTZ	S	9,900	$180.70	$1,788,930	101,349 Direct	-8.90%	Disposed	51.5% (price as of 2026-08-21)
Aug. 5, 2025	MTZ	S	100	$180.70	$18,070	111,249 Direct	-0.09%	Disposed	51.5% (price as of 2026-08-21)
March 24, 2025	MTZ	F	4,319	$124.03	$535,686	111,349 Direct	-3.73%	Disposed	120.7% (price as of 2026-08-21)
March 18, 2025	MTZ	A	14,400	—	—	115,668 Direct	+14.22%	Acquired	(price as of 2026-08-21)
March 18, 2024	MTZ	F	2,535	$86.36	$218,923	101,268 Direct	-2.44%	Disposed	217.0% (price as of 2026-08-21)
March 5, 2024	MTZ	A	18,523	—	—	103,803 Direct	+21.72%	Acquired	(price as of 2026-08-21)
Nov. 3, 2023	MTZ	I	5,957	$51.28	$305,475	7,966 Indirect	+296.52%	Acquired	433.9% (price as of 2026-08-21)
March 19, 2023	MTZ	F	9,129	$87.09	$795,045	85,280 Direct	-9.67%	Disposed	214.3% (price as of 2026-08-21)
March 10, 2023	MTZ	A	13,539	—	—	94,409 Direct	+16.74%	Acquired	(price as of 2026-08-21)
March 24, 2022	MTZ	A	11,505	—	—	80,870 Direct	+16.59%	Acquired	(price as of 2026-08-21)
March 14, 2022	MTZ	F	3,641	$82.85	$301,657	69,365 Direct	-4.99%	Disposed	230.4% (price as of 2026-08-21)
March 18, 2021	MTZ	A	10,286	—	—	73,006 Direct	+16.40%	Acquired	(price as of 2026-08-21)
March 14, 2021	MTZ	F	3,291	$98.93	$325,579	62,720 Direct	-4.99%	Disposed	176.7% (price as of 2026-08-21)
March 2, 2021	MTZ	S	459	$89.75	$41,195	66,011 Direct	-0.69%	Disposed	205.0% (price as of 2026-08-21)
March 1, 2021	MTZ	S	19,328	$89.64	$1,732,562	66,470 Direct	-22.53%	Disposed	205.4% (price as of 2026-08-21)
Nov. 9, 2020	MTZ	S 10b5-1	10,000	$57.45	$574,500	85,798 Direct	-10.44%	Disposed	376.5% (price as of 2026-08-21)
Nov. 9, 2020	MTZ	S 10b5-1	13,202	$57.38	$757,531	95,798 Direct	-12.11%	Disposed	377.1% (price as of 2026-08-21)
Nov. 5, 2020	MTZ	S 10b5-1	1,798	$55.00	$98,890	109,000 Direct	-1.62%	Disposed	397.7% (price as of 2026-08-21)
Oct. 9, 2020	MTZ	S 10b5-1	5,000	$47.02	$235,100	110,798 Direct	-4.32%	Disposed	482.2% (price as of 2026-08-21)
Aug. 12, 2020	MTZ	S 10b5-1	10,000	$48.41	$484,100	115,798 Direct	-7.95%	Disposed	465.5% (price as of 2026-08-21)
March 19, 2020	MTZ	A	27,503	—	—	125,798 Direct	+27.98%	Acquired	(price as of 2026-08-21)
March 21, 2019	MTZ	J	1,642	—	—	98,295 Direct	-1.64%	Disposed	(price as of 2026-08-21)
March 14, 2019	MTZ	A	13,768	—	—	108,337 Direct	+14.56%	Acquired	(price as of 2026-08-21)
Dec. 18, 2018	MTZ	F	7,186	$39.40	$283,128	94,569 Direct	-7.06%	Disposed	594.8% (price as of 2026-08-21)
Aug. 3, 2018	MTZ	S 10b5-1	10,000	$48.00	$480,000	101,755 Direct	-8.95%	Disposed	470.3% (price as of 2026-08-21)
March 14, 2018	MTZ	A	12,153	—	—	111,755 Direct	+12.20%	Acquired	(price as of 2026-08-21)
March 12, 2018	MTZ	J	4,200	—	—	99,937 Direct	-4.03%	Disposed	(price as of 2026-08-21)
March 1, 2018	MTZ	S 10b5-1	10,800	$49.77	$537,516	99,702 Direct	-9.77%	Disposed	450.1% (price as of 2026-08-21)
March 1, 2018	MTZ	S 10b5-1	100	$50.55	$5,055	99,602 Direct	-0.10%	Disposed	441.6% (price as of 2026-08-21)
March 1, 2018	MTZ	S 10b5-1	4,100	$48.94	$200,654	110,502 Direct	-3.58%	Disposed	459.4% (price as of 2026-08-21)
Dec. 19, 2017	MTZ	F	13,591	$46.90	$637,418	114,602 Direct	-10.60%	Disposed	483.7% (price as of 2026-08-21)
March 19, 2017	MTZ	A	12,227	—	—	128,193 Direct	+10.54%	Acquired	(price as of 2026-08-21)
March 16, 2017	MTZ	F	3,748	$39.10	$146,547	111,766 Direct	-3.24%	Disposed	600.2% (price as of 2026-08-21)
March 16, 2017	MTZ	F	3,748	$39.10	$146,547	115,966 Direct	-3.13%	Disposed	600.2% (price as of 2026-08-21)
Dec. 28, 2015	MTZ	F	3,517	$17.51	$61,583	113,872 Direct	-3.00%	Disposed	1463.4% (price as of 2026-08-21)
Dec. 18, 2015	MTZ	A	22,502	—	—	117,389 Direct	+23.71%	Acquired	(price as of 2026-08-21)
April 16, 2015	MTZ	F	176	$19.44	$3,421	94,887 Direct	-0.19%	Disposed	1308.2% (price as of 2026-08-21)
April 16, 2015	MTZ	M	258	$10.13	$2,614	95,063 Direct	+0.27%	Acquired	2602.5% (price as of 2026-08-21)
April 16, 2015	MTZ	F	10,287	$19.44	$199,979	94,805 Direct	-9.79%	Disposed	1308.2% (price as of 2026-08-21)
April 16, 2015	MTZ	M	19,742	$10.13	$199,986	105,092 Direct	+23.13%	Acquired	2602.5% (price as of 2026-08-21)
April 16, 2015	MTZ	M	258	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
April 16, 2015	MTZ	M	19,742	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
April 16, 2015	MTZ	F	176	$19.44	$3,421	104,488 Direct	-0.17%	Disposed	1308.2% (price as of 2026-08-21)
April 16, 2015	MTZ	M	258	$10.13	$2,614	104,664 Direct	+0.25%	Acquired	2602.5% (price as of 2026-08-21)
April 16, 2015	MTZ	F	10,287	$19.44	$199,979	104,406 Direct	-8.97%	Disposed	1308.2% (price as of 2026-08-21)
April 16, 2015	MTZ	M	19,742	$10.13	$199,986	114,693 Direct	+20.79%	Acquired	2602.5% (price as of 2026-08-21)
March 19, 2015	MTZ	F	3,160	$18.27	$57,733	85,350 Direct	-3.57%	Disposed	1398.4% (price as of 2026-08-21)
March 19, 2015	MTZ	F	3,160	$18.27	$57,733	94,951 Direct	-3.22%	Disposed	1398.4% (price as of 2026-08-21)
Dec. 19, 2014	MTZ	A	32,988	—	—	88,510 Direct	+59.41%	Acquired	(price as of 2026-08-21)
Dec. 19, 2014	MTZ	A	32,988	—	—	98,111 Direct	+50.65%	Acquired	(price as of 2026-08-21)
March 20, 2014	MTZ	F	2,205	$42.44	$93,580	55,522 Direct	-3.82%	Disposed	545.1% (price as of 2026-08-21)
March 20, 2014	MTZ	F	2,205	$42.44	$93,580	65,123 Direct	-3.28%	Disposed	545.1% (price as of 2026-08-21)
March 16, 2014	MTZ	A	10,750	—	—	57,727 Direct	+22.88%	Acquired	(price as of 2026-08-21)
March 16, 2014	MTZ	A	10,750	—	—	59,369 Direct	+22.11%	Acquired	(price as of 2026-08-21)
March 1, 2013	MTZ	M	45,000	—	—	258 Direct	-99.43%	Disposed	(price as of 2026-08-21)
March 1, 2013	MTZ	S 10b5-1	45,000	$31.08	$1,398,600	46,977 Direct	-48.93%	Disposed	780.8% (price as of 2026-08-21)
March 1, 2013	MTZ	M	45,000	$10.13	$455,850	91,977 Direct	+95.79%	Acquired	2602.5% (price as of 2026-08-21)
Dec. 28, 2012	MTZ	A	12,858	—	—	46,977 Direct	+37.69%	Acquired	(price as of 2026-08-21)
Dec. 28, 2012	MTZ	F	1,983	$24.50	$48,584	34,119 Direct	-5.49%	Disposed	1017.4% (price as of 2026-08-21)
Dec. 13, 2012	MTZ	M	25,000	—	—	45,258 Direct	-35.58%	Disposed	(price as of 2026-08-21)
Dec. 13, 2012	MTZ	S 10b5-1	25,000	$23.56	$589,000	36,102 Direct	-40.92%	Disposed	1062.0% (price as of 2026-08-21)
Dec. 13, 2012	MTZ	M	25,000	$10.13	$253,250	61,102 Direct	+69.25%	Acquired	2602.5% (price as of 2026-08-21)
March 19, 2012	MTZ	A	11,443	—	—	36,102 Direct	+46.40%	Acquired	(price as of 2026-08-21)
March 20, 2011	MTZ	A	7,959	—	—	24,659 Direct	+47.66%	Acquired	(price as of 2026-08-21)
Jan. 22, 2010	MTZ	A	7,500	—	—	16,700 Direct	+81.52%	Acquired	(price as of 2026-08-21)
Feb. 27, 2008	MTZ	A	5,000	—	—	9,200 Direct	+119.05%	Acquired	(price as of 2026-08-21)
April 4, 2006	MTZ	A	4,200	—	—	4,200 Direct	—	Acquired	(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
April 16, 2015	MTZ	Non-Qualified Stock Option (right to buy) [F2]	Common Stock (258)	$10.13	Nov. 16, 2010	258	Disposed
April 16, 2015	MTZ	Incentive Stock Option (right to buy) [F2]	Common Stock (19,742)	$10.13	Nov. 16, 2010	19,742	Disposed
March 1, 2013	MTZ	Non-Qualified Stock Option (right to buy)	Common Stock (45,000)	$10.13	Nov. 16, 2010	45,000	Disposed
Dec. 13, 2012	MTZ	Non-Qualified Stock Option (right to buy)	Common Stock (25,000)	$10.13	Nov. 16, 2010	25,000	Disposed

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 28, 2005	MTZ	Incentive Stock Option (right to buy) [F1]→ Common Stock (19,742)	19,742	Direct
Nov. 28, 2005	MTZ	Non-Qualified Stock Option (right to buy) [F1]→ Common Stock (70,258)	70,258	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

MTZ

General Counsel

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2023	$486,519	—	$1,600,000	—	$525,000	—	$28,625	$2,640,144
2021	$450,000	—	—	—	$600,000	—	$27,025	$2,077,025
2020	$446,872	—	—	—	$550,000	—	$26,301	$1,973,173

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.