796 hedge funds and large institutions have $18.6B invested in MasTec in 2026 Q1 according to their latest regulatory filings, with 180 funds opening new positions, 249 increasing their positions, 261 reducing their positions, and 64 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 call options, than puts

Call options by funds: $ | Put options by funds: $

15% more funds holding

Funds holding: 692796 (+104)

0.81% less ownership

Funds ownership: 74.3%73.49% (-0.81%)

5% less repeat investments, than reductions

Existing positions increased: 249 | Existing positions reduced: 261

Holders
796
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
28
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$225M
Puts
$177M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
PCIG
226
Partners Capital Investment Group
Massachusetts
$5.99M
DE
227
Defiance ETFs
New York
$5.97M
Mariner
228
Mariner
Kansas
$5.97M
SSWM
229
Sheets Smith Wealth Management
North Carolina
$5.92M
TCA
230
Tortoise Capital Advisors
Kansas
$5.9M
AAP
231
Arax Advisory Partners
Colorado
$5.9M
CNAM
232
Campbell Newman Asset Management
Wisconsin
$5.84M
Prudential Financial
233
Prudential Financial
New Jersey
$5.77M
LSERS
234
Louisiana State Employees Retirement System
Louisiana
$5.73M
American Century Companies
235
American Century Companies
Missouri
$5.64M
Thrivent Financial for Lutherans
236
Thrivent Financial for Lutherans
Minnesota
$5.59M
CIBC World Market
237
CIBC World Market
Ontario, Canada
$5.58M
ASRS
238
Arizona State Retirement System
Arizona
$5.58M
Natixis Advisors
239
Natixis Advisors
Massachusetts
$5.5M
FCM
240
Farallon Capital Management
California
$5.47M
Mercer Global Advisors
241
Mercer Global Advisors
Colorado
$5.38M
IMRF
242
Illinois Municipal Retirement Fund
Illinois
$5.32M
Bank of Montreal
243
Bank of Montreal
Ontario, Canada
$5.17M
BFM
244
Boothbay Fund Management
New York
$5.12M
VIA
245
Vanguard Investments Australia
Australia
$5.11M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
246
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$5.05M
COPPSERS
247
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$4.94M
LCG
248
Lisanti Capital Growth
New York
$4.85M
NAM
249
NorthCrest Asset Manangement
Minnesota
$4.83M
ACM
250
Arosa Capital Management
Florida
$4.83M