RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

RBCN was delisted on the 29th of December, 2022.

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102 hedge funds and large institutions have $89M invested in Rubicon Technology, Inc. in 2014 Q3 according to their latest regulatory filings, with 13 funds opening new positions, 37 increasing their positions, 34 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
102
Holders Change
-11
Holders Change %
-9.73%
% of All Funds
2.96%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
13
Increased
37
Reduced
34
Closed
24
Calls
$563K
Puts
$843K
Net Calls
-$280K
Net Calls Change
-$673K

Top Buyers

1
CWAM
Columbia Wanger Asset Management
Illinois
$10.6M
2
AI
Ariel Investments
Illinois
$9.38M
3
LAM
Lapides Asset Management
Connecticut
$1.94M
4
Renaissance Technologies
Renaissance Technologies
New York
$865K
5
Northern Trust
Northern Trust
Illinois
$1.93M

Top Sellers

1
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$2.76M
2
ICM
Invicta Capital Management
New York
$0
3
RS
Robeco Schweiz
Switzerland
$0
4
EA
Ecofin Advisors
United Kingdom
$1.83M
5
IMIM
Irving Magee Investment Management
Pennsylvania
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
IMIM
101
Irving Magee Investment Management
Pennsylvania
– -$2.56M -29,308 Closed
Adage Capital Partners
102
Adage Capital Partners
Massachusetts
– -$788K -9,000 Closed
GC
103
Guggenheim Capital
Illinois
– -$771K -8,808 Closed
Calamos Advisors
104
Calamos Advisors
Illinois
– -$577K -6,598 Closed
CI Investments Inc
105
CI Investments Inc
Ontario, Canada
– -$438K -5,000 Closed
LPL Financial
106
LPL Financial
California
– -$390K -4,455 Closed
AQR Capital Management
107
AQR Capital Management
Connecticut
– -$330K -3,770 Closed
RU
108
RobecoSam USA
New York
– -$306K -3,500 Closed
PSC
109
Piper Sandler & Co
Minnesota
– -$263K -3,000 Closed
EIM
110
Essex Investment Management
Massachusetts
– -$187K -2,133 Closed
BPC
111
Banque Pictet & Cie
Switzerland
– -$175K -2,000 Closed
MLICM
112
Metropolitan Life Insurance Company (MetLife)
New York
– -$165K -1,881 Closed
Nomura Holdings
113
Nomura Holdings
Japan
– -$141K -1,613 Closed
Nuveen Asset Management
114
Nuveen Asset Management
Illinois
– -$113K -1,289 Closed
WBC
115
Westpac Banking Corp
Australia
– -$95.4K -1,091 Closed
Capital Fund Management (CFM)
116
Capital Fund Management (CFM)
France
– -$95K -1,080 Closed
VFA
117
Virtus Fund Advisers
Connecticut
– -$20K -223 Closed
BRWA
118
B. Riley Wealth Advisors
Florida
– -$10.5K -120 Closed
TDC
119
Thompson Davis & Co
Virginia
– -$7K -75 Closed
Bank of Montreal
120
Bank of Montreal
Ontario, Canada
– -$5K -54 Closed
Parallax Volatility Advisers
121
Parallax Volatility Advisers
California
– -$2K -25 Closed
HHMI
122
Howard Hughes Medical Institute
Maryland
– -$1K -10 Closed
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