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
AI
351
Atria Investments
North Carolina
$785K
SFA
352
Sequoia Financial Advisors
Ohio
$782K
SACTSONJ
353
Supplemental Annuity Collective Trust (SACT) of New Jersey
New Jersey
$766K
CM
354
Castleark Management
Illinois
$753K
PNC Financial Services Group
355
PNC Financial Services Group
Pennsylvania
$747K
CCM
356
Coldstream Capital Management
Washington
$742K
GC
357
Guggenheim Capital
Illinois
$727K
CCC
358
Chesapeake Capital Corp
Florida
$725K
CA
359
CWC Advisors
Oregon
$711K
SG
360
StoneX Group
New York
$710K
OQS
361
Occudo Quantitative Strategies
Florida
$707K
URS
362
Utah Retirement Systems
Utah
$700K
TRCT
363
Tower Research Capital (TRC)
New York
$699K
Lido Advisors
364
Lido Advisors
California
$694K
BSB
365
Bangor Savings Bank
Maine
$668K
CA
366
Claro Advisors
Massachusetts
$665K
MSRPS
367
Maryland State Retirement & Pension System
Maryland
$660K
CTC
368
Cetera Trust Company
Minnesota
$646K
EP
369
Edgestream Partners
New Jersey
$635K
GC
370
Globeflex Capital
California
$631K
RIP
371
Reliant Investment Partners
North Carolina
$627K
Jones Financial Companies
372
Jones Financial Companies
Missouri
$619K
HWM
373
HB Wealth Management
Georgia
$619K
MM
374
MQS Management
New York
$615K
IB
375
Intrust Bank
Kansas
$615K