HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

Pension

Position in MTZ — Mastec Inc

CIK 1535845 TORONTO, A6

Back to MTZ Full portfolio

Position in MTZ

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$46,640,326

+$41,589,008 QoQ

Shares Held

112,100

+614.0% QoQ

Ownership

0.140%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

#77

of 908 holders

Holding Since

Jun 2022

10 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in MTZ Over Time

Shares Held

Position Value (USD)

Position in Engineering & Construction

Industrials · as of Jun 30, 2026

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND holds $583,513,677 across 16 Engineering & Construction names. MTZ ranks #4 (8.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LGN	Legence Corp.	2,539,939	$216,479,000
2	PWR	Quanta Services, Inc.	154,382	$111,161,215
3	EME	EMCOR Group, Inc.	112,978	$93,758,182
4	MTZ	Mastec Inc This page	112,100	$46,640,326
5	FER	Ferrovial N.V.	411,689	$28,245,982
6	ACM	Aecom	363,000	$25,337,400
7	TPC	Tutor Perini Corp	238,900	$19,821,533
8	GVA	Granite Construction Inc	92,000	$14,543,360

All Filings in MTZ

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10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$46,640,326	112,100	+614.0%	Shares	Sole	2026-08-13
2026-03-31	$5,051,318	15,700	+241.3%	Shares	Sole	2026-05-14
2024-09-30	$566,260	4,600	-52.3%	Shares	Sole	2024-11-13
2024-06-30	$1,031,811	9,644	-78.0%	Shares	Sole	2024-09-20
2023-09-30	$3,156,316	43,856	-7.6%	Shares	Sole	2023-11-13
2023-06-30	$5,598,502	47,457	-4.7%	Shares	Sole	2023-08-11
2023-03-31	$4,704,906	49,819	+71.5%	Shares	Sole	2023-05-12
2022-12-31	$2,478,495	29,046	+12.6%	Shares	Sole	2023-02-13
2022-09-30	$1,638,490	25,803	-27.5%	Shares	Sole	2022-11-14
2022-06-30	$2,551,525	35,606	—	Shares	Sole	2022-08-11
No filing history on record for this holder in this stock.