13F Insight
DOSSIER · 13F Holders · Q1 2026Industrials · Water, Sewer, Pipeline, Comm & Power Line ConstructionCyclicalNet sold
MTZ

MASTEC INC

821 institutions still hold MASTEC INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 576323109·Water, Sewer, Pipeline, Comm & Power Line Construction·821 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 4.5%
vs prior quarter
13F value held
$10.1B
48.0% inst. owned
of float
Holders
821
+113 QoQ
filers reporting
Activity
+8 / −40
+1,030 added · −917 reduced
this quarter
Concentration
23.21%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

821 institutions reported MTZ in Q1 2026. BlackRock, Inc. leads at 23.2% of the visible book. +113 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$2.4B7.3M0.04%Q1 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119
$902M2.8M0.02%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$891M2.8M0.05%Q1 202604
Hill City Capital, LP
CIK 0001837343
$693M2.2M24.77%Q1 202605
STATE STREET CORP
CIK 0000093751
$602M1.9M0.02%Q1 202606
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$512M1.6M0.33%Q1 202607
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$454M1.4M0.32%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$441M1.4M0.03%Q1 202609
BANK OF AMERICA CORP /DE/
CIK 0000070858
$428M1.3M0.03%Q1 202610
Hood River Capital Management LLC
CIK 0001578177
$417M1.3M4.18%Q1 202611
Invesco Ltd.
CIK 0000914208
$394M1.2M0.06%Q1 202612
PECONIC PARTNERS LLC
CIK 0001050464
$348M1.6M8.27%Q4 202513
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$235M732K0.05%Q1 202614
Electron Capital Partners, LLC
CIK 0001586986
$229M713K8.98%Q1 202615
NORDEA INVESTMENT MANAGEMENT AB
CIK 0001218210
$229M734K0.21%Q1 202616
Bank of New York Mellon Corp
CIK 0001390777
$211M656K0.04%Q1 202617
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$210M660K0.10%Q1 202618
FMR LLC
CIK 0000315066
$202M628K0.01%Q1 202619
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$195M605K0.26%Q1 202620
MORGAN STANLEY
CIK 0000895421
$189M587K0.01%Q1 2026
Page 1 of 42
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