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
+$10.1M
2
AI
Ariel Investments
Illinois
+$3.64M
3
LAM
Lapides Asset Management
Connecticut
+$977K
4
Renaissance Technologies
Renaissance Technologies
New York
+$865K
5
Northern Trust
Northern Trust
Illinois
+$765K

Top Sellers

1
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
-$11.3M
2
ICM
Invicta Capital Management
New York
-$10.9M
3
RS
Robeco Schweiz
Switzerland
-$2.83M
4
EA
Ecofin Advisors
United Kingdom
-$2.75M
5
IMIM
Irving Magee Investment Management
Pennsylvania
-$2.56M
Name Holding Trade Value Shares
Change 		Shares
Change %
RhumbLine Advisers
51
RhumbLine Advisers
Massachusetts
$142K +$723 +17 +0.5%
Charles Schwab
52
Charles Schwab
California
$139K – – –
VKH
53
Virtu KCG Holdings
New York
$134K +$134K +3,159 New
NFA
54
Nationwide Fund Advisors
Ohio
$130K +$21.5K +507 +20%
State Board of Administration of Florida Retirement System
55
State Board of Administration of Florida Retirement System
Florida
$121K – – –
Deutsche Bank
56
Deutsche Bank
Germany
$119K +$67.1K +1,594 +129%
Barclays
57
Barclays
United Kingdom
$113K +$98.1K +2,455 +656%
RB
58
Rodgers Brothers
Pennsylvania
$107K -$8.69K -205 -8%
BCM
59
Bourgeon Capital Management
Connecticut
$106K +$106K +2,500 New
Comerica Bank
60
Comerica Bank
Texas
$95K -$3.19K -75 -3%
VOYA Investment Management
61
VOYA Investment Management
Georgia
$95K – – –
TPSF
62
Texas Permanent School Fund
Texas
$90K -$10.4K -243 -10%
State of Tennessee, Department of Treasury
63
State of Tennessee, Department of Treasury
Tennessee
$85K – – –
AIG
64
American International Group
New York
$84K +$383 +9 +0.5%
CCM
65
Coldstream Capital Management
Washington
$79K +$20.4K +478 +35%
California Public Employees Retirement System
66
California Public Employees Retirement System
California
$76K – – –
ASRS
67
Arizona State Retirement System
Arizona
$68K -$1.68K -40 -2%
AG
68
Aperio Group
California
$67K +$15K +352 +29%
BA
69
BlackRock Advisors
Delaware
$66K – – –
Walleye Trading
70
Walleye Trading
New York
$64K +$41.7K +975 +188%
AGM
71
Alpine Global Management
New York
$59K +$59K +1,377 New
PP
72
Paloma Partners
Connecticut
$59K +$59K +1,390 New
CI
73
Cowen Inc
New York
$54K +$54K +1,270 New
BG
74
BlackRock Group
United Kingdom
$53K -$2.72K -64 -5%
Stifel Financial
75
Stifel Financial
Missouri
$51K – – –
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3
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