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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
GAM
51
Gotham Asset Management
New York
$45M -$4.31M -23,555 -10%
Assenagon Asset Management
52
Assenagon Asset Management
Luxembourg
$41.9M -$15.4M -84,074 -30%
Vontobel Holding
53
Vontobel Holding
Switzerland
$41.9M -$228K -1,247 -0.6%
Walleye Capital
54
Walleye Capital
New York
$41.5M +$14.4M +78,689 +68%
Canada Pension Plan Investment Board
55
Canada Pension Plan Investment Board
Ontario, Canada
$41.4M +$1.24M +6,790 +4%
CTB
56
Country Trust Bank
Illinois
$41.1M -$14.3M -78,087 -29%
D.E. Shaw & Co
57
D.E. Shaw & Co
New York
$40.6M -$27.3M -149,232 -44%
WHCM
58
Wolf Hill Capital Management
Connecticut
$39.9M +$2.29M +12,532 +7%
Arrowstreet Capital
59
Arrowstreet Capital
Massachusetts
$39.6M -$32.6M -178,254 -49%
GIM
60
Goodlander Investment Management
Texas
$38.5M -$3.48M -19,000 -10%
N
61
Nuveen
North Carolina
$37.5M +$775K +4,233 +2%
Principal Financial Group
62
Principal Financial Group
Iowa
$37.4M -$10.3M -56,455 -24%
KMC
63
Kirr Marbach & Co
Indiana
$36.1M -$339K -1,849 -1%
RhumbLine Advisers
64
RhumbLine Advisers
Massachusetts
$35.8M -$466K -2,546 -1%
Lazard Asset Management
65
Lazard Asset Management
New York
$34M +$15.6M +85,305 +114%
OAM
66
OP Asset Management
$33.1M +$24.9M +135,915 +691%
CTI
67
Community Trust & Investment
Kentucky
$30.8M -$699K -3,818 -3%
SCM
68
SIR Capital Management
New York
$28.7M +$11.8M +64,400 +91%
Schroder Investment Management Group
69
Schroder Investment Management Group
United Kingdom
$28M +$10.8M +59,228 +82%
Squarepoint
70
Squarepoint
New York
$28M +$15.6M +85,256 +184%
Wells Fargo
71
Wells Fargo
California
$27.5M +$5.53M +30,179 +30%
AllianceBernstein
72
AllianceBernstein
Tennessee
$26.7M -$26.7M -145,631 -54%
Barclays
73
Barclays
United Kingdom
$26.7M -$3.34M -18,223 -13%
Mackenzie Financial
74
Mackenzie Financial
Ontario, Canada
$26.7M -$2.2M -12,000 -9%
Swiss National Bank
75
Swiss National Bank
Switzerland
$26M +$275K +1,500 +1%