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
Pictet Asset Management
276
Pictet Asset Management
Switzerland
$1.87M
FCP
277
Fidelis Capital Partners
Florida
$1.87M
LSA
278
Lansing Street Advisors
Pennsylvania
$1.86M
TI
279
Tidal Investments
Wisconsin
$1.81M
CPC
280
Cookson Peirce & Co
Pennsylvania
$1.8M
OC
281
Oppenheimer & Co
New York
$1.8M
RWM
282
Ritholtz Wealth Management
New York
$1.79M
HW
283
Hedeker Wealth
Illinois
$1.78M
NP
284
Ninepoint Partners
Ontario, Canada
$1.78M
PIM
285
Profit Investment Management
Maryland
$1.77M
PCM
286
Peregrine Capital Management
Minnesota
$1.75M
IAS
287
IMA Advisory Services
Colorado
$1.75M
BC
288
Bridgefront Capital
Texas
$1.75M
FDS
289
First Dallas Securities
Texas
$1.73M
PAG
290
Private Advisor Group
New Jersey
$1.72M
Pacer Advisors
291
Pacer Advisors
Pennsylvania
$1.72M
PCA
292
Pallas Capital Advisors
Massachusetts
$1.69M
Focus Partners Wealth
293
Focus Partners Wealth
Massachusetts
$1.63M
DADC
294
D.A. Davidson & Co
Montana
$1.56M
BMSSC
295
B. Metzler seel. Sohn & Co
Germany
$1.56M
CM
296
Caption Management
Oklahoma
$1.55M
ACM
297
Arosa Capital Management
Florida
$1.49M
HighTower Advisors
298
HighTower Advisors
Illinois
$1.45M
LCM
299
Legato Capital Management
California
$1.44M
STA
300
Summit Trail Advisors
New York
$1.43M