635 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, 197 increasing their positions, 219 reducing their positions, and 74 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:

1.54% more ownership

Funds ownership: 70.75%72.28% (+1.5%)

4% less call options, than puts

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

10% less repeat investments, than reductions

Existing positions increased: 197 | Existing positions reduced: 219

Holders
635
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
MPWT
576
MassMutual Private Wealth & Trust
Connecticut
$14.5K
AAS
577
Ameritas Advisory Services
Nebraska
$13.6K
LI
578
LRI Investments
Florida
$13K
FHC
579
First Horizon Corporation
Tennessee
$11.5K
MAM
580
Meeder Asset Management
Ohio
$11.3K
BIA
581
Bell Investment Advisors
California
$11.1K
FMII
582
Farmers & Merchants Investments Inc
Nebraska
$11.1K
CIBC Private Wealth Group
583
CIBC Private Wealth Group
Georgia
$10.6K
MCM
584
Manchester Capital Management
Vermont
$10.6K
KTC
585
Kentucky Trust Company
Kentucky
$9.58K
HI
586
Harbour Investments
Wisconsin
$8.94K
CT
587
Colonial Trust
South Carolina
$8.94K
JWA
588
JFS Wealth Advisors
Pennsylvania
$8.73K
AAG
589
Armstrong Advisory Group
Massachusetts
$8.51K
EB
590
Eastern Bank
Massachusetts
$8.09K
SWP
591
Strategic Wealth Partners
Ohio
$7.87K
RS
592
Rakuten Securities
Japan
$7.24K
CTC
593
Central Trust Company
Missouri
$7.24K
FFO
594
Fortitude Family Office
Arizona
$7.24K
SS
595
SBI Securities
Japan
$7.02K
TCOT
596
Trust Company of Toledo
Ohio
$6.81K
PWMG
597
Private Wealth Management Group
New Jersey
$6.81K
OP
598
ORG Partners
Indiana
$6.81K
BAM
599
Byrne Asset Management
New Jersey
$6.38K
AssetMark Inc
600
AssetMark Inc
California
$6.17K