641 hedge funds and large institutions have $12.1B invested in MasTec in 2025 Q3 according to their latest regulatory filings, with 138 funds opening new positions, 202 increasing their positions, 219 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

1.56% more ownership

Funds ownership: 70.75%72.31% (+1.6%)

4% less call options, than puts

Call options by funds: $116M | Put options by funds: $121M

8% less repeat investments, than reductions

Existing positions increased: 202 | Existing positions reduced: 219

Holders
641
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
18
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$116M
Puts
$121M
Net Calls
Net Calls Change

Top Sellers

1 -$106M
2 -$89.6M
3 -$64.6M
4
Millennium Management
Millennium Management
New York
-$52M
5
Jane Street
Jane Street
New York
-$51.4M
Name Holding Trade Value Shares
Change
Change in
Stake
SHIM
576
Stone House Investment Management
Pennsylvania
$23.4K
HIA
577
Harbor Investment Advisory
Maryland
$22.6K
SS
578
Sunbelt Securities
Texas
$21.1K
WSFS
579
Wilmington Savings Fund Society
Delaware
$16.2K
ACM
580
Accent Capital Management
Ohio
$14.9K
JFG
581
JDM Financial Group
Texas
$14.9K
MPWT
582
MassMutual Private Wealth & Trust
Connecticut
$14.5K
AAS
583
Ameritas Advisory Services
Nebraska
$13.6K
LI
584
LRI Investments
Florida
$13K
FHC
585
First Horizon Corporation
Tennessee
$11.5K
MAM
586
Meeder Asset Management
Ohio
$11.3K
BIA
587
Bell Investment Advisors
California
$11.1K
FMII
588
Farmers & Merchants Investments Inc
Nebraska
$11.1K
CIBC Private Wealth Group
589
CIBC Private Wealth Group
Georgia
$10.6K
MCM
590
Manchester Capital Management
Vermont
$10.6K
KTC
591
Kentucky Trust Company
Kentucky
$9.58K
HI
592
Harbour Investments
Wisconsin
$8.94K
CT
593
Colonial Trust
South Carolina
$8.94K
JWA
594
JFS Wealth Advisors
Pennsylvania
$8.73K
AAG
595
Armstrong Advisory Group
Massachusetts
$8.51K
EB
596
Eastern Bank
Massachusetts
$8.09K
SWP
597
Strategic Wealth Partners
Ohio
$7.87K
RS
598
Rakuten Securities
Japan
$7.24K
CTC
599
Central Trust Company
Missouri
$7.24K
FFO
600
Fortitude Family Office
Arizona
$7.24K