RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

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113 hedge funds and large institutions have $201M invested in Rubicon Technology, Inc. in 2014 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 52 increasing their positions, 28 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
113
Holders Change
-13
Holders Change %
-10.32%
% of All Funds
3.25%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
18
Increased
52
Reduced
28
Closed
31
Calls
$2M
Puts
$1.6M
Net Calls
+$393K
Net Calls Change
-$5.42M

Top Buyers

1
EA
Ecofin Advisors
United Kingdom
+$9.43M
2
ICM
Invicta Capital Management
New York
+$8.31M
3
AI
Ariel Investments
Illinois
+$5.14M
4
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
+$3.26M
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$1.91M

Top Sellers

1
WMSA
Weiss Multi-Strategy Advisers
New York
-$13.9M
2
WRF
Waddell & Reed Financial
Kansas
-$13.5M
3
ZDA
Zweig-DiMenna Associates
New York
-$3.27M
4
RA
Royce & Associates
New York
-$1.92M
5
LCG
Lisanti Capital Growth
New York
-$1.75M
Name Holding Trade Value Shares
Change 		Shares
Change %
Principal Financial Group
26
Principal Financial Group
Iowa
$1.24M +$45.3K +518 +4%
U
27
UBS
Switzerland
$1.2M +$306K +3,495 +34%
ERSOT
28
Employees Retirement System of Texas
Texas
$1.13M +$1.13M +12,900 New
Royal Bank of Canada
29
Royal Bank of Canada
Ontario, Canada
$1.11M -$140K -1,600 -11%
Geode Capital Management
30
Geode Capital Management
Massachusetts
$1.05M +$33.9K +388 +3%
CWAM
31
Columbia Wanger Asset Management
Illinois
$1.01M +$1.01M +11,528 New
TCIM
32
TIAA CREF Investment Management
New York
$1.01M +$335K +3,826 +50%
VDBMI
33
Van Den Berg Management I
Texas
$955K -$13.8K -158 -1%
Ameriprise
34
Ameriprise
Minnesota
$871K +$62.3K +713 +8%
BIM
35
BlackRock Investment Management
Delaware
$855K +$139K +1,593 +19%
Adage Capital Partners
36
Adage Capital Partners
Massachusetts
$788K -$1.18M -13,500 -60%
PRCP
37
Pacific Ridge Capital Partners
Oregon
$785K -$8.05K -92 -1%
GC
38
Guggenheim Capital
Illinois
$771K -$51.2K -585 -6%
ZCA
39
Zeke Capital Advisors
Pennsylvania
$726K – – –
Calamos Advisors
40
Calamos Advisors
Illinois
$577K +$577K +6,598 New
Prudential Financial
41
Prudential Financial
New Jersey
$453K +$16K +183 +4%
Public Sector Pension Investment Board (PSP Investments)
42
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$447K +$50.6K +578 +13%
CI Investments Inc
43
CI Investments Inc
Ontario, Canada
$438K – – –
GMCM
44
Gruber & McBaine Capital Management
California
$438K +$438K +5,000 New
California State Teachers Retirement System (CalSTRS)
45
California State Teachers Retirement System (CalSTRS)
California
$418K +$81.5K +930 +24%
LPL Financial
46
LPL Financial
California
$390K +$390K +4,455 New
First Trust Advisors
47
First Trust Advisors
Illinois
$379K -$190K -2,168 -33%
AII
48
AGF Investments Inc
Ontario, Canada
$357K – – –
New York State Teachers Retirement System (NYSTRS)
49
New York State Teachers Retirement System (NYSTRS)
New York
$338K +$3.5K +40 +1%
AQR Capital Management
50
AQR Capital Management
Connecticut
$330K +$7K +80 +2%
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