3 tracked superinvestors hold MASTEC INC (MTZ), worth $896M combined, led by Stephen Mandel. Smart money is trimming MTZ as of the latest 13F filings.
Current price
$237.19
+30.0%
1Y
MasTec, Inc. is a leading infrastructure construction firm that delivers a comprehensive suite of services, encompassing engineering, construction, installation, maintenance, and enhancement. The company primarily serves the communications, energy, utility, and broader infrastructure sectors throughout the United States and Canada. Its operations are structured across distinct segments:…
Market cap
$32.9B
P/E
82.66
Div yield
0.0%
Revenue YoY
16.2%
Analyst target
$445
Snapshot for context. For deep analysis use a stock screener — this page is about who owns it.
Superinvestors holding
3
tracked 13F / N-PORT funds
Combined value
$896M
disclosed long exposure
Tier-1 conviction
3
concentrated holders
Net this quarter
-3
0 buying · 3 selling
Smart money is net reducing MTZ: 3 funds trimmed versus 0 adding.
MASTEC INC (MTZ) is a genuine cross-fund conviction name: 3 concentrated Tier-1 superinvestors hold it, alongside 0 other tracked funds, for $896M of combined disclosed exposure.
The largest position belongs to Stephen Mandel at 3.4% of their book — no single tracked manager treats it as an outsized, top-weighted bet.
No tracked fund opened a new position this quarter; 0 added and 3 trimmed, a net reduction.
| Investor | Move | % of their portfolio | Position value |
|---|---|---|---|
| Trimmed | 3.4% | $560M | |
| Trimmed | 0.4% | $215M | |
| Trimmed | 2.6% | $121M |
Tier badge = signal quality: 1 concentrated conviction · 2 quant/multi (context) · 3 retail & diversified. Only Tier 1 holdings feed the consensus signal.
Which superinvestors own MTZ?
3 tracked funds hold MASTEC INC (MTZ), the largest being Stephen Mandel (Lone Pine Capital) at 3.4% of its 13F portfolio. 3 of them are concentrated Tier-1 conviction managers.
Is smart money buying or selling MTZ?
In the most recent 13F quarter, 0 tracked funds added or opened MTZ and 3 trimmed it.
How much MTZ do tracked funds hold?
Combined disclosed long exposure to MTZ across tracked superinvestors is $896M as of the Jun 2026 filings.
One email when a tracked manager opens, adds to or files to sell a position — from Form 4, 13D and Form 144, not the 45-day-old 13F.
Holdings aggregated from the latest SEC 13F & N-PORT filings via FMP · Jun 2026 quarter. Long equity positions only, reported with up to a 45-day delay — for activity between filings see real-time moves. Not financial advice.