Electron Capital Partners, LLC

Position in MTZ — Mastec Inc

CIK 1586986 NEW YORK, NY

Position in MTZ

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$258,036,251

+$28,631,449 QoQ

Shares Held

620,190

-13.0% QoQ

Ownership

0.772%

of shares outstanding

% of Portfolio

10.30%

of 13F equity value

Holder Rank

#22

of 910 holders

Holding Since

Mar 2020

24 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

Electron Capital Partners, LLC holds $305,886,272 across 3 Engineering & Construction names. MTZ ranks #1 (84.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MTZ	Mastec Inc This page	620,190	$258,036,251
2	PRIM	Primoris Services Corp	415,103	$41,145,009
3	PWR	Quanta Services, Inc.	9,312	$6,705,012

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$258,036,251	620,190	-13.0%	Shares	Defined	2026-08-14
2026-03-31	$229,404,802	713,013	-11.4%	Shares	Defined	2026-05-15
2025-12-31	$174,831,343	804,303	-1.8%	Shares	Defined	2026-02-19
2025-09-30	$174,310,755	819,091	+9.6%	Shares	Defined	2025-11-14
2025-06-30	$127,367,963	747,333	+2.0%	Shares	Defined	2025-08-14
2025-03-31	$85,528,472	732,829	-29.3%	Shares	Defined	2025-05-15
2024-12-31	$141,164,791	1,036,909	-18.1%	Shares	Defined	2025-02-14
2024-09-30	$155,914,643	1,266,569	-11.6%	Shares	Defined	2024-11-14
2024-06-30	$153,245,521	1,432,335	-16.7%	Shares	Defined	2024-08-15
2024-03-31	$160,397,087	1,720,076	-0.3%	Shares	Defined	2024-05-15
2023-12-31	$130,632,825	1,725,209	+16.1%	Shares	Defined	2024-03-01
2023-09-30	$106,971,529	1,486,335	+4.7%	Shares	Defined	2023-11-14
2023-06-30	$167,487,435	1,419,746	-2.5%	Shares	Defined	2023-08-14
2023-03-31	$137,483,768	1,455,779	-7.6%	Shares	Defined	2023-05-15
2022-12-31	$134,430,673	1,575,421	+19.3%	Shares	Defined	2023-02-14
2022-09-30	$83,845,336	1,320,399	+66.3%	Shares	Defined	2022-11-14
2022-06-30	$56,888,150	793,862	-0.8%	Shares	Defined	2022-08-15
2022-03-31	$69,727,469	800,545	+1.3%	Shares	Defined	2022-05-16
2021-12-31	$72,921,963	790,225	-6.3%	Shares	Defined	2022-02-14
2021-09-30	$72,782,529	843,562	+23.2%	Shares	Defined	2021-11-15
2021-06-30	$72,647,943	684,712	-3.2%	Shares	Defined	2021-08-16
2021-03-31	$66,252,927	707,075	+29.4%	Shares	Defined	2021-05-17
2020-12-31	$37,263,574	546,547	+933.7%	Shares	Defined	2021-02-16
2020-03-31	$1,730,566	52,874	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.