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MasTec

US · MTZ #1028 by market cap Listed 1970
223.37 -4.93 -2.16%
Live - 5344 symbols - heartbeat 293s ago · 2026-10-08 06:21
Pre-market 215.99 -3.30%
After-hours 225.00 +0.73%
Overnight 222.50 -0.39%
Market cap
17.94B
P/B
5.16
EPS
5.07
Reader sentiment Are you bullish or bearish on MTZ?

Anonymous reader poll. Unscientific, not investment advice.

✦ Quant Ownership Signal how this is computed

Distributing
  • The number of reporting institutions decreased by 2 in the most recent period (2026/Q3).
  • Total institutional ownership fell 1.3 percentage points.

Institutional ownership

Held by institutions
77.64% -1.31pp
Institutions
1,027 -2
As of
2026/Q3 vs. prior period

Ownership vs. money flow

Aligned

Institutions trimmed shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two line up.

Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.

Holder types

Mutual Fund53.48%
Individual/Insider20.73%
Hedge Fund15.98%
Public Company3.64%
Government Pension Fund1.80%
Private Company1.58%
VC/PE Fund0.35%
Family Office/Trust0.30%
Insurance Company0.21%
Other1.93%

Top holders

Jorge Mas 13.96%
BlackRock 9.63%
Jose Mas 5.72%
Peconic Partners LLC 4.64%
Vanguard Capital Management, LLC 4.08%
Vanguard Portfolio Management, LLC 3.55%
State Street Global Advisors 2.83%
Hill City Capital LP 2.72%
Lone Pine Capital LLC 1.70%
First Trust Advisors L.P. 1.68%

Bar length is relative to the largest holder shown here, not to 100% of the company.

Insiders

50 filings tracked · 28 buys · 22 sells

NameRoleStake
Jorge Mas Chairperson 13.96%
Jose Mas Chief Executive Officer 5.72%
Robert Apple Chief Operating Officer 0.25%
Alberto de Cardenas General Counsel 0.14%
Paul Dimarco Chief Financial Officer 0.10%
Julia Johnson Independent Director 0.09%
C. Campbell Independent Director 0.04%
Robert Dwyer Lead Independent Director 0.03%
T. Love Chief Accounting Officer 0.02%
Ernest Csiszar Independent Director 0.01%

Insider transactions most recent Form 4 filings

DateNameRoleTypeSharesPrice
2026-08-13 Julia Johnson Independent Director Other Acquisition +139 --
2026-08-13 C. Campbell Independent Director Other Acquisition +139 --
2026-08-13 Ava Parker Independent Director Sale to Issuer -20 $297.59
2026-08-13 Ava Parker Independent Director Other Acquisition +177 --
2026-08-13 Robert Dwyer Lead Independent Director Sale to Issuer -31 $297.59
2026-08-13 Robert Dwyer Lead Independent Director Other Acquisition +139 --
2026-08-13 Ernest Csiszar Independent Director Sale to Issuer -34 $297.59
2026-08-13 Ernest Csiszar Independent Director Other Acquisition +152 --
2026-08-13 Javier Palomarez Independent Director Sale to Issuer -31 $297.59
2026-08-13 Javier Palomarez Independent Director Other Acquisition +139 --
2026-08-13 Manuel Miranda Director Other Acquisition +152 --
2026-08-13 Alexander Spiro Director Other Acquisition +139 --
2026-08-10 Jorge Mas Chairperson Other Derivative Acquisition +1,099,335 --
2026-08-10 Jorge Mas Chairperson Other Derivative Disposition -1,099,335 --
2026-08-10 Jose Mas Chief Executive Officer Other Derivative Acquisition +340,794 --
2026-08-10 Jose Mas Chief Executive Officer Other Derivative Disposition -340,794 --
2026-06-02 Ernest Csiszar Independent Director Open Market Disposition -6,500 $371.17
2026-05-14 Julia Johnson Independent Director Other Acquisition +95 --
2026-05-14 C. Campbell Independent Director Other Acquisition +95 --
2026-05-14 Ava Parker Independent Director Sale to Issuer -14 $434.77

Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.

Quote time 2026-10-08 06:21:11 · For reference only, not investment advice and not tailored to your situation.