MasTec, Inc. (MTZ) Institutional Ownership & Insider Trading

908 institutions reported holding MasTec, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 5 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

MTZMasTec, Inc.Follow MTZ — free

Engineering & Construction · Industrials

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Market cap: 13.7B
P/E TTM: 27.3
Dividend yield: —
52-week: —
Next earnings: 29 Oct, in 5 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

908 institutions held 74.2% of the shares. Across filers that reported both quarters, shares held changed +2.8%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	908	60	+2.8%	290	155	275	58
Mar 26	795	58	-0.9%	219	146	241	49
Dec 25	678	58	+1.1%	206	75	192	53
Sep 25	634	57	+2.1%	177	113	198	63
Jun 25	580	56	+0.4%	178	99	166	33
Mar 25	511	56	-3.0%	183	69	142	74
Dec 24	520	58	-1.6%	165	82	136	32
Sep 24	460	57	-3.1%	131	68	128	38

MasTec, Inc. — questions

Who owns MasTec, Inc. stock?: 908 institutions reported MasTec, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (9.5%), PECONIC PARTNERS LLC (4.6%), VANGUARD CAPITAL MANAGEMENT LLC (3.5%).
Are MasTec, Inc. insiders buying or selling?: 5 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from MasTec, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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