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651 hedge funds and large institutions have $12.2B invested in MasTec in 2025 Q3 according to their latest regulatory filings, with 139 funds opening new positions, 203 increasing their positions, 224 reducing their positions, and 73 closing their positions.

New
Increased
Maintained
Reduced
Closed

90% more first-time investments, than exits

New positions opened: 139 | Existing positions closed: 73

29% more funds holding in top 10

Funds holding in top 10: 1418 (+4)

28% more capital invested

Capital invested by funds: $9.5B → $12.2B (+$2.67B)

10% more funds holding

Funds holding: 591651 (+60)

1.77% more ownership

Funds ownership: 70.8%72.57% (+1.8%)

4% less call options, than puts

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

9% less repeat investments, than reductions

Existing positions increased: 203 | Existing positions reduced: 224

Holders
651
Holders Change
+60
Holders Change %
+10.15%
% of All Funds
8.54%
Holding in Top 10
18
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+28.57%
% of All Funds
0.24%
New
139
Increased
203
Reduced
224
Closed
73
Calls
$116M
Puts
$121M
Net Calls
-$5.1M
Net Calls Change
-$61.3M
Name Holding Trade Value Shares
Change
Change in
Stake
STA
301
Summit Trail Advisors
New York
$1.43M +$1.23M +6,736 New
HS
302
HighVista Strategies
Massachusetts
$1.43M -$787K -4,300 -39%
CWIG
303
Chung Wu Investment Group
Texas
$1.41M +$194K +1,060 +19%
SOADOR
304
State of Alaska Department of Revenue
Alaska
$1.4M -$54.9K -300 -4%
O
305
Ossiam
France
$1.39M +$1.2M +6,545 New
Massachusetts Financial Services
306
Massachusetts Financial Services
Massachusetts
$1.38M +$286K +1,564 +32%
NYLIM
307
New York Life Investment Management
New York
$1.36M -$42.7K -233 -4%
PCM
308
Polymer Capital Management
New York
$1.36M +$880K +4,806 +306%
Neuberger Berman Group
309
Neuberger Berman Group
New York
$1.35M -$732 -4 -0.1%
LTAS
310
Linden Thomas Advisory Services
North Carolina
$1.3M +$15.7K +86 +1%
Federated Hermes
311
Federated Hermes
Pennsylvania
$1.29M -$279K -1,526 -20%
IWM
312
IHT Wealth Management
Illinois
$1.27M +$39.6K +216 +4%
LP
313
LMR Partners
United Kingdom
$1.27M +$1.09M +5,965 New
WLG
314
Williamson Legacy Group
Indiana
$1.26M +$1.08M +5,909 New
VPIM
315
Vanguard Personalized Indexing Management
California
$1.25M +$7.87K +43 +0.7%
Alyeska Investment Group
316
Alyeska Investment Group
Illinois
$1.24M -$1.15M -6,298 -52%
BJL
317
Brighton Jones LLC
Washington
$1.21M +$216K +1,177 +26%
SG Americas Securities
318
SG Americas Securities
New York
$1.2M -$20K -109 -2%
KIM
319
Kestra Investment Management
Texas
$1.18M +$1.02M +5,550 New
MFG
320
Merit Financial Group
Georgia
$1.13M +$77.1K +421 +9%
Public Employees Retirement Association of Colorado
321
Public Employees Retirement Association of Colorado
Colorado
$1.13M -$251K -1,369 -21%
QCG
322
Quadrant Capital Group
Ohio
$1.12M +$4.58K +25 +0.5%
KCM
323
KRS Capital Management
Michigan
$1.11M +$117K +637 +14%
DFCM
324
Dark Forest Capital Management
Puerto Rico
$1.08M +$934K +5,098 New
AS
325
Altshuler Shaham
Israel
$1.07M +$462K +2,522 +101%