RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

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19 hedge funds and large institutions have $867K invested in Rubicon Technology, Inc. in 2022 Q3 according to their latest regulatory filings, with 7 funds opening new positions, 1 increasing their positions, 7 reducing their positions, and 5 closing their positions.

Holders
19
Holders Change
+2
Holders Change %
+11.76%
% of All Funds
0.33%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
7
Increased
1
Reduced
7
Closed
5
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
CL
1
CSS LLC
Illinois
$100K
2
Ameriprise
2
Ameriprise
Minnesota
$76K
3
EA
3
Ellsworth Advisors
Ohio
$54K
4
Citadel Advisors
4
Citadel Advisors
Florida
$46K
5
Millennium Management
5
Millennium Management
New York
$23K

Top Sellers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$0
2
BP
2
Bandera Partners
New York
$275K
3
MAM
3
Marquette Asset Management
Minnesota
$0
4
BlackRock
4
BlackRock
New York
$43K
5
Osaic Holdings
5
Osaic Holdings
Arizona
$15K
Name Market Value Shares Shares
Change 		Shares
Change %
BP
1
Bandera Partners
New York
$275K 128,323 -129,933 -50%
Renaissance Technologies
2
Renaissance Technologies
New York
$194K 90,671 -4,008 -4%
CL
3
CSS LLC
Illinois
$100K 46,654 +46,654 New
Ameriprise
4
Ameriprise
Minnesota
$76K 35,339 +35,339 New
EA
5
Ellsworth Advisors
Ohio
$54K 25,127 +25,127 New
Citadel Advisors
6
Citadel Advisors
Florida
$46K 21,412 +21,412 New
BlackRock
7
BlackRock
New York
$43K 20,137 -20,905 -51%
Millennium Management
8
Millennium Management
New York
$23K 10,529 +10,529 New
Geode Capital Management
9
Geode Capital Management
Massachusetts
$22K 10,419 -1,424 -12%
Osaic Holdings
10
Osaic Holdings
Arizona
$15K 6,979 -4,341 -38%
TRCT
11
Tower Research Capital (TRC)
New York
$11K 5,237 +4,712 +898%
Morgan Stanley
12
Morgan Stanley
New York
$7K 3,147 +3,147 New
AA
13
AlphaMark Advisors
Kentucky
$1K 500 – –
Vanguard Group
14
Vanguard Group
Pennsylvania
– – -72,664 Closed
MAM
15
Marquette Asset Management
Minnesota
– – -9,921 Closed
UBS Group
16
UBS Group
Switzerland
$0 57 -623 -92%
Citigroup
17
Citigroup
New York
– – -363 Closed
JPMorgan Chase & Co
18
JPMorgan Chase & Co
New York
– – -141 Closed
WB
19
West Bancorporation
Iowa
– – -100 Closed
Wells Fargo
20
Wells Fargo
California
$0 11 -4 -27%
Rockefeller Capital Management
21
Rockefeller Capital Management
New York
$0 220 – –
CS
22
Credit Suisse
Switzerland
$0 26 – –
Group One Trading
23
Group One Trading
Illinois
$0 1 – –
CFGS
24
Concourse Financial Group Securities
Alabama
– – – –
Northwestern Mutual Wealth Management
25
Northwestern Mutual Wealth Management
Wisconsin
$0 82 +82 New