796 hedge funds and large institutions have $18.6B invested in MasTec in 2026 Q1 according to their latest regulatory filings, with 180 funds opening new positions, 249 increasing their positions, 261 reducing their positions, and 64 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 call options, than puts

Call options by funds: $ | Put options by funds: $

15% more funds holding

Funds holding: 692796 (+104)

0.81% less ownership

Funds ownership: 74.3%73.49% (-0.81%)

5% less repeat investments, than reductions

Existing positions increased: 249 | Existing positions reduced: 261

Holders
796
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
28
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$225M
Puts
$177M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
AssetMark Inc
651
AssetMark Inc
California
$192K
AIM
652
Acropolis Investment Management
Missouri
$184K
Optiver Holding
653
Optiver Holding
Netherlands
$178K
UFF
654
USA Financial Formulas
Michigan
$173K
NSIM
655
North Star Investment Management
Illinois
$162K
OA
656
Operose Advisors
Wisconsin
$161K
RAM
657
Resona Asset Management
Japan
$160K
TWD
658
True Wealth Design
Ohio
$148K
RIL
659
Rothschild Investment LLC
Illinois
$134K
TSMHT
660
Thurston Springer Miller Herd & Titak
Indiana
$131K
BTI
661
Blue Trust Inc
Georgia
$130K
RF
662
Rossby Financial
Florida
$122K
GM
663
GeoWealth Management
Illinois
$118K
Nomura Asset Management
664
Nomura Asset Management
Japan
$111K
PA
665
Parallel Advisors
California
$109K
RFP
666
Root Financial Partners
California
$100K
S
667
SignatureFD
Georgia
$98.8K
SWIM
668
Smallwood Wealth Investment Management
New Jersey
$96.5K
BC
669
Brookfield Corp
Ontario, Canada
$96.2K
SAM
670
Smartleaf Asset Management
Massachusetts
$95.4K
MIFH
671
Migdal Insurance & Financial Holdings
Israel
$95.2K
CFB
672
Cullen/Frost Bankers
Texas
$94.6K
ACA
673
American Capital Advisory
Idaho
$93K
TLFA
674
True Link Financial Advisors
California
$92.7K
CA
675
Clearstead Advisors
Ohio
$86.9K