374 hedge funds and large institutions have $5.14B invested in Ameren in 2013 Q2 according to their latest regulatory filings, with 374 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
374
Holders Change
+374
Holders Change %
% of All Funds
12.21%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
%
% of All Funds
0.07%
New
374
Increased
Reduced
Closed
Calls
$6.48M
Puts
$9.31M
Net Calls
-$2.83M
Net Calls Change
-$2.83M

Top Buyers

No buyers this quarter

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change
Shares
Change %
AG
201
Aperio Group
California
$1.28M +$1.28M +37,057 New
ERSOT
202
Employees Retirement System of Texas
Texas
$1.27M +$1.27M +37,000 New
Asset Management One
203
Asset Management One
Japan
$1.25M +$1.25M +36,435 New
MWNA
204
Marshall Wace North America
New York
$1.21M +$1.21M +35,138 New
KBC Group
205
KBC Group
Belgium
$1.2M +$1.2M +34,881 New
Cambridge Investment Research Advisors
206
Cambridge Investment Research Advisors
Iowa
$1.17M +$1.17M +33,911 New
GMIM
207
General Motors Investment Management
New York
$1.17M +$1.17M +33,843 New
Nisa Investment Advisors
208
Nisa Investment Advisors
Missouri
$1.13M +$1.13M +32,700 New
SMDAM
209
Sumitomo Mitsui DS Asset Management
Japan
$1.11M +$1.11M +32,307 New
Janus Henderson Group
210
Janus Henderson Group
United Kingdom
$1.08M +$1.08M +31,774 New
WC
211
Wexford Capital
Florida
$1.03M +$1.03M +30,000 New
CIBC Asset Management
212
CIBC Asset Management
Ontario, Canada
$989K +$989K +28,729 New
PA
213
Praesidis Advisors
Florida
$974K +$974K +28,291 New
CTC
214
Central Trust Company
Missouri
$939K +$939K +27,246 New
LG
215
Leuthold Group
Minnesota
$930K +$930K +27,010 New
TMAM
216
Tokio Marine Asset Management
Japan
$913K +$913K +26,512 New
FSA
217
Franklin Street Advisors
North Carolina
$912K +$912K +26,471 New
PMAM
218
Picton Mahoney Asset Management
Ontario, Canada
$912K +$912K +26,500 New
SBCM
219
Silver Bridge Capital Management
Massachusetts
$911K +$911K +26,463 New
BA
220
BlackRock Advisors
Delaware
$904K +$904K +26,237 New
Acadian Asset Management
221
Acadian Asset Management
Massachusetts
$899K +$899K +26,092 New
SB
222
Suntrust Banks
Georgia
$854K +$854K +24,838 New
SCM
223
Shelton Capital Management
Colorado
$851K +$851K +24,708 New
BSA
224
Braun Stacey Associates
New York
$846K +$846K +24,565 New
RIL
225
Rothschild Investment LLC
Illinois
$836K +$836K +24,270 New