638 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, 200 increasing their positions, 219 reducing their positions, and 74 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:

1.54% more ownership

Funds ownership: 70.75%72.29% (+1.5%)

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: 200 | Existing positions reduced: 219

Holders
638
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
Wolverine Trading
251
Wolverine Trading
Illinois
$2.53M
AIP
252
Ameritas Investment Partners
Nebraska
$2.45M
JCIA
253
Jackson Creek Investment Advisors
Colorado
$2.43M
BFM
254
Boothbay Fund Management
New York
$2.4M
Ensign Peak Advisors
255
Ensign Peak Advisors
Utah
$2.38M
Creative Planning
256
Creative Planning
Kansas
$2.32M
Janney Montgomery Scott
257
Janney Montgomery Scott
Pennsylvania
$2.31M
GP
258
Gallo Partners
New Jersey
$2.3M
CIBC World Market
259
CIBC World Market
Ontario, Canada
$2.29M
DS
260
DRW Securities
Illinois
$2.24M
Two Sigma Investments
261
Two Sigma Investments
New York
$2.15M
1C
262
1060 Capital
Colorado
$2.13M
Calamos Advisors
263
Calamos Advisors
Illinois
$2.05M
HA
264
Huntleigh Advisors
Missouri
$2.05M
SGA
265
Strategic Global Advisors
California
$2.03M
Sumitomo Mitsui Trust Group
266
Sumitomo Mitsui Trust Group
Japan
$2.03M
TCA
267
Tortoise Capital Advisors
Kansas
$1.97M
X
268
Xponance
Pennsylvania
$1.94M
FAF
269
Fjarde Ap-fonden
Sweden
$1.92M
Cohen & Steers
270
Cohen & Steers
New York
$1.89M
CAPTRUST Financial Advisors
271
CAPTRUST Financial Advisors
North Carolina
$1.89M
Franklin Resources
272
Franklin Resources
California
$1.88M
EA
273
Emerald Advisers
Pennsylvania
$1.88M
LIM
274
Leavell Investment Management
Alabama
$1.87M
Pictet Asset Management
275
Pictet Asset Management
Switzerland
$1.87M