RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

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82 hedge funds and large institutions have $102M invested in Rubicon Technology, Inc. in 2014 Q4 according to their latest regulatory filings, with 15 funds opening new positions, 25 increasing their positions, 30 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
82
Holders Change
-20
Holders Change %
-19.61%
% of All Funds
2.19%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
15
Increased
25
Reduced
30
Closed
34
Calls
$586K
Puts
$221K
Net Calls
+$365K
Net Calls Change
+$645K

Top Buyers

1
AI
Ariel Investments
Illinois
+$7.33M
2
EA
Ecofin Advisors
United Kingdom
+$3.78M
3
Fidelity Investments
Fidelity Investments
Massachusetts
+$3.36M
4
AF
Aegis Financial
Virginia
+$2.04M
5
RA
Royce & Associates
New York
+$725K

Top Sellers

1
QAM
Quentec Asset Management
New York
-$4M
2
BFA
BlackRock Fund Advisors
California
-$2.18M
3
AIA
AGF Investments America
Ontario, Canada
-$1.04M
4
Invesco
Invesco
Georgia
-$698K
5
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
-$692K
Name Holding Trade Value Shares
Change 		Shares
Change %
MI
76
Markston International
New York
$1K – – –
Bank of Montreal
77
Bank of Montreal
Ontario, Canada
$1K +$1K +15 New
Manulife (Manufacturers Life Insurance)
78
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$45 -$23 -495 -33%
BRWA
79
B. Riley Wealth Advisors
Florida
$5 +$5 +120 New
QAM
80
Quentec Asset Management
New York
– -$4M -94,063 Closed
AIA
81
AGF Investments America
Ontario, Canada
– -$1.04M -24,520 Closed
Principal Financial Group
82
Principal Financial Group
Iowa
– -$595K -14,007 Closed
VDBMI
83
Van Den Berg Management I
Texas
– -$487K -11,469 Closed
Ameriprise
84
Ameriprise
Minnesota
– -$439K -10,330 Closed
BCM
85
Bridgeway Capital Management
Texas
– -$282K -6,640 Closed
Wellington Management Group
86
Wellington Management Group
Massachusetts
– -$266K -6,271 Closed
Prudential Financial
87
Prudential Financial
New Jersey
– -$214K -5,038 Closed
AII
88
AGF Investments Inc
Ontario, Canada
– -$189K -4,430 Closed
Public Sector Pension Investment Board (PSP Investments)
89
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
– -$186K -4,368 Closed
New York State Teachers Retirement System (NYSTRS)
90
New York State Teachers Retirement System (NYSTRS)
New York
– -$166K -3,907 Closed
RB
91
Rodgers Brothers
Pennsylvania
– -$107K -2,525 Closed
Comerica Bank
92
Comerica Bank
Texas
– -$95K -2,234 Closed
TPSF
93
Texas Permanent School Fund
Texas
– -$90K -2,111 Closed
State of Tennessee, Department of Treasury
94
State of Tennessee, Department of Treasury
Tennessee
– -$85K -2,010 Closed
ASRS
95
Arizona State Retirement System
Arizona
– -$68K -1,620 Closed
AG
96
Aperio Group
California
– -$67K -1,575 Closed
PP
97
Paloma Partners
Connecticut
– -$59K -1,390 Closed
AGM
98
Alpine Global Management
New York
– -$59K -1,377 Closed
CI
99
Cowen Inc
New York
– -$54K -1,270 Closed
BG
100
BlackRock Group
United Kingdom
– -$53K -1,245 Closed
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