634 hedge funds and large institutions have $28.8B invested in Aon in 2017 Q4 according to their latest regulatory filings, with 110 funds opening new positions, 186 increasing their positions, 232 reducing their positions, and 58 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
634
Holders Change
+50
Holders Change %
+8.56%
% of All Funds
14.4%
Holding in Top 10
22
Holding in Top 10 Change
-15
Holding in Top 10 Change %
-40.54%
% of All Funds
0.5%
New
110
Increased
186
Reduced
232
Closed
58
Calls
$92.6M
Puts
$33.3M
Net Calls
+$59.3M
Net Calls Change
+$57.9M
Name Holding Trade Value Shares
Change
Shares
Change %
GHCM
101
Glen Harbor Capital Management
California
$28.4M -$1.72M -12,852 -6%
Bank of Montreal
102
Bank of Montreal
Ontario, Canada
$27.6M -$9.15M -68,249 -25%
Balyasny Asset Management
103
Balyasny Asset Management
Illinois
$27.5M +$26.2M +195,500 +2,058%
AAMU
104
Amundi Asset Management US
Massachusetts
$27.2M +$27.2M +203,043 New
DS
105
Dudley & Shanley
Florida
$26.9M -$362K -2,700 -1%
GIA
106
Gateway Investment Advisers
Ohio
$26.7M -$1.96M -14,620 -7%
Aviva
107
Aviva
United Kingdom
$26.1M -$2.77M -20,660 -10%
CA
108
Cortland Advisers
Delaware
$25.7M -$2.05M -15,325 -7%
Natixis Advisors
109
Natixis Advisors
Massachusetts
$24.7M +$431K +3,213 +2%
William Blair & Company
110
William Blair & Company
Illinois
$23.7M -$479K -3,578 -2%
Mackenzie Financial
111
Mackenzie Financial
Ontario, Canada
$23.5M +$15.5M +115,356 +192%
Royal Bank of Canada
112
Royal Bank of Canada
Ontario, Canada
$23.5M +$8.77M +65,483 +60%
MCIM
113
Meadow Creek Investment Management
Georgia
$23.4M -$1.42M -10,584 -6%
CCM
114
Corsair Capital Management
New York
$23.3M -$3.84M -28,686 -14%
Robeco Institutional Asset Management
115
Robeco Institutional Asset Management
Netherlands
$21.8M +$19.8M +147,746 +965%
RMDI
116
R.M. Davis Inc
Maine
$21.6M -$280K -2,092 -1%
GQG Partners
117
GQG Partners
Florida
$21.1M +$4.19M +31,233 +25%
GAI
118
General American Investors
New York
$20.7M
TCM
119
Tran Capital Management
California
$20.7M
Fidelity International
120
Fidelity International
Bermuda
$20.3M -$5.09M -37,993 -20%
NLGIA
121
Nippon Life Global Investors Americas
New York
$20.2M -$181K -1,350 -0.9%
First Manhattan
122
First Manhattan
New York
$19.8M +$1.09M +8,099 +6%
AQR Capital Management
123
AQR Capital Management
Connecticut
$19.6M +$4.37M +32,588 +29%
AG
124
Aperio Group
California
$19.5M +$366K +2,728 +2%
ACI
125
AMP Capital Investors
Australia
$19.2M -$1.18M -8,818 -6%