RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

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4 hedge funds and large institutions have $257K invested in Rubicon Technology, Inc. in 2022 Q4 according to their latest regulatory filings, with 1 funds opening new positions, 1 increasing their positions, 0 reducing their positions, and 16 closing their positions.

Holders
4
Holders Change
-15
Holders Change %
-78.95%
% of All Funds
0.06%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
1
Increased
1
Reduced
–
Closed
16
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
JC
1
JBF Capital
Colorado
$23.2K
2
TRCT
2
Tower Research Capital (TRC)
New York
$10K

Top Sellers

1
Renaissance Technologies
1
Renaissance Technologies
New York
$0
2
CL
2
CSS LLC
Illinois
$0
3
Ameriprise
3
Ameriprise
Minnesota
$0
4
EA
4
Ellsworth Advisors
Ohio
$0
5
Citadel Advisors
5
Citadel Advisors
Florida
$0
Name Market Value Shares Shares
Change 		Shares
Change %
BP
1
Bandera Partners
New York
$223K 128,323 – –
JC
2
JBF Capital
Colorado
$23.2K 16,478 +16,478 New
TRCT
3
Tower Research Capital (TRC)
New York
$10K 5,863 +626 +12%
Renaissance Technologies
4
Renaissance Technologies
New York
– – -90,671 Closed
CL
5
CSS LLC
Illinois
– – -46,654 Closed
Ameriprise
6
Ameriprise
Minnesota
– – -35,339 Closed
EA
7
Ellsworth Advisors
Ohio
– – -25,127 Closed
Citadel Advisors
8
Citadel Advisors
Florida
– – -21,412 Closed
BlackRock
9
BlackRock
New York
– – -20,137 Closed
Millennium Management
10
Millennium Management
New York
– – -10,529 Closed
Geode Capital Management
11
Geode Capital Management
Massachusetts
– – -10,419 Closed
Osaic Holdings
12
Osaic Holdings
Arizona
– – -6,979 Closed
Morgan Stanley
13
Morgan Stanley
New York
– – -3,147 Closed
AA
14
AlphaMark Advisors
Kentucky
– – -500 Closed
Northwestern Mutual Wealth Management
15
Northwestern Mutual Wealth Management
Wisconsin
– – -82 Closed
UBS Group
16
UBS Group
Switzerland
– – -57 Closed
CS
17
Credit Suisse
Switzerland
– – -26 Closed
Wells Fargo
18
Wells Fargo
California
– – -11 Closed
Group One Trading
19
Group One Trading
Illinois
– – -1 Closed
CFGS
20
Concourse Financial Group Securities
Alabama
– – – –
Rockefeller Capital Management
21
Rockefeller Capital Management
New York
$0 220 – –