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
NMERB
251
New Mexico Educational Retirement Board
New Mexico
$2.58M
Wolverine Trading
252
Wolverine Trading
Illinois
$2.53M
AIP
253
Ameritas Investment Partners
Nebraska
$2.45M
JCIA
254
Jackson Creek Investment Advisors
Colorado
$2.43M
BFM
255
Boothbay Fund Management
New York
$2.4M
Ensign Peak Advisors
256
Ensign Peak Advisors
Utah
$2.38M
Creative Planning
257
Creative Planning
Kansas
$2.32M
Janney Montgomery Scott
258
Janney Montgomery Scott
Pennsylvania
$2.31M
GP
259
Gallo Partners
New Jersey
$2.3M
CIBC World Market
260
CIBC World Market
Ontario, Canada
$2.29M
DS
261
DRW Securities
Illinois
$2.24M
Two Sigma Investments
262
Two Sigma Investments
New York
$2.15M
1C
263
1060 Capital
Colorado
$2.13M
Calamos Advisors
264
Calamos Advisors
Illinois
$2.05M
HA
265
Huntleigh Advisors
Missouri
$2.05M
SGA
266
Strategic Global Advisors
California
$2.03M
Sumitomo Mitsui Trust Group
267
Sumitomo Mitsui Trust Group
Japan
$2.03M
TCA
268
Tortoise Capital Advisors
Kansas
$1.97M
X
269
Xponance
Pennsylvania
$1.94M
FAF
270
Fjarde Ap-fonden
Sweden
$1.92M
Cohen & Steers
271
Cohen & Steers
New York
$1.89M
CAPTRUST Financial Advisors
272
CAPTRUST Financial Advisors
North Carolina
$1.89M
Franklin Resources
273
Franklin Resources
California
$1.88M
EA
274
Emerald Advisers
Pennsylvania
$1.88M
LIM
275
Leavell Investment Management
Alabama
$1.87M