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
QIM
676
Quantitative Investment Management
Virginia
WEG
677
World Equity Group
Illinois
TCM
678
Tributary Capital Management
Nebraska
MA
679
MONECO Advisors
Connecticut
FRM
680
Fox Run Management
Connecticut
HP
681
Hartree Partners
New York
VIM
682
Vinva Investment Management
Australia
ACM
683
Aster Capital Management
United Arab Emirates
QCM
684
QRG Capital Management
Illinois
MS
685
Maven Securities
Jersey
SRL
686
Scientech Research LLC
New Jersey
RAM
687
Readystate Asset Management
Illinois
HT
688
Headlands Technologies
Illinois
FC
689
Farringdon Capital
United Kingdom
PMAM
690
Picton Mahoney Asset Management
Ontario, Canada
SL
691
Sentinus LLC
Illinois
OR
692
Olympiad Research
Connecticut
ACA
693
Aptus Capital Advisors
Alabama
SPC
694
Sigma Planning Corp
Michigan
WS
695
Wedbush Securities
California
Mirae Asset Global Investments
696
Mirae Asset Global Investments
South Korea
BNP Paribas Asset Management
697
BNP Paribas Asset Management
France
ERSOT
698
Employees Retirement System of Texas
Texas
SC
699
SouthState Corp
Florida
RFG
700
REAP Financial Group
Texas