225 hedge funds and large institutions have $2.32B invested in MasTec in 2013 Q4 according to their latest regulatory filings, with 34 funds opening new positions, 80 increasing their positions, 89 reducing their positions, and 39 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
225
Holders Change
-7
Holders Change %
-3.02%
% of All Funds
6.53%
Holding in Top 10
11
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+57.14%
% of All Funds
0.32%
New
34
Increased
80
Reduced
89
Closed
39
Calls
$4.14M
Puts
$3.23M
Net Calls
+$908K
Net Calls Change
+$4.3M
Name Holding Trade Value Shares
Change
Shares
Change %
BGIM
151
Brandywine Global Investment Management
Pennsylvania
$777K -$966K -29,500 -55%
AssetMark Inc
152
AssetMark Inc
California
$765K +$14.1K +430 +2%
PMAM
153
Picton Mahoney Asset Management
Ontario, Canada
$730K +$730K +22,300 New
GCP
154
GSA Capital Partners
United Kingdom
$701K -$993K -30,347 -59%
WFM
155
Wilmington Funds Management
Delaware
$700K -$19.5K -597 -3%
Two Sigma Advisers
156
Two Sigma Advisers
New York
$698K -$1.28M -39,000 -65%
BlackRock
157
BlackRock
New York
$681K -$17.4K -531 -2%
Public Employees Retirement Association of Colorado
158
Public Employees Retirement Association of Colorado
Colorado
$662K
Allianz Asset Management
159
Allianz Asset Management
Germany
$631K +$15K +458 +2%
CAM
160
Cortina Asset Management
Wisconsin
$597K -$115K -3,525 -16%
AG
161
Aperio Group
California
$592K -$551K -18,171 Closed
HCM
162
Highbridge Capital Management
New York
$561K -$1.05M -32,058 -65%
PI
163
Placemark Investments
Illinois
$544K -$32.2K -982 -6%
AIS
164
AlphaOne Investment Services
Pennsylvania
$481K +$91.6K +2,800 +24%
BMCMI
165
Bryn Mawr Capital Management Inc
Pennsylvania
$476K -$43.8K -1,340 -8%
AL
166
Airain Ltd
Guernsey
$475K -$203K -6,186 -30%
NI
167
Numeric Investors
Massachusetts
$474K +$474K +14,500 New
RJA
168
Raymond James & Associates
Florida
$468K +$3.27K +100 +0.7%
ST
169
Smithfield Trust
Pennsylvania
$466K -$17.3K -530 -4%
BNP Paribas Financial Markets
170
BNP Paribas Financial Markets
France
$460K -$321K -9,816 -41%
RA
171
Rational Advisors
New York
$448K -$23.6K -721 -5%
SIP
172
Stoneridge Investment Partners
Pennsylvania
$407K -$3.27K -100 -0.8%
Two Sigma Investments
173
Two Sigma Investments
New York
$388K -$3.47M -105,869 -90%
CCM
174
Coe Capital Management
Illinois
$382K +$382K +11,685 New
T
175
TradeWorx
New Jersey
$379K +$379K +11,598 New