RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

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66 hedge funds and large institutions have $52.3M invested in Rubicon Technology, Inc. in 2015 Q2 according to their latest regulatory filings, with 12 funds opening new positions, 16 increasing their positions, 25 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
66
Holders Change
-10
Holders Change %
-13.16%
% of All Funds
1.78%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
12
Increased
16
Reduced
25
Closed
22
Calls
–
Puts
$6K
Net Calls
-$6K
Net Calls Change
+$71K

Top Buyers

1
AI
Ariel Investments
Illinois
$12.1M
2
Renaissance Technologies
Renaissance Technologies
New York
$618K
3
EA
Ecofin Advisors
United Kingdom
$3.39M
4
AA
Ancora Advisors
Ohio
$222K
5
Invesco
Invesco
Georgia
$751K

Top Sellers

1
BFA
BlackRock Fund Advisors
California
$168K
2
State Street
State Street
Massachusetts
$56K
3
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$646K
4
BIT
BlackRock Institutional Trust
California
$1.27M
5
CWAM
Columbia Wanger Asset Management
Illinois
$7.71M
Name Holding Trade Value Shares
Change 		Shares
Change %
BA
51
BlackRock Advisors
Delaware
$13K -$28.3K -1,154 -69%
BBHC
52
Brown Brothers Harriman & Co
New York
$12K +$12K +500 New
LTFS
53
Ladenburg Thalmann Financial Services
Florida
$11K +$8.04K +331 +271%
BIM
54
BlackRock Investment Management
Delaware
$10K -$188K -8,123 -95%
Wells Fargo
55
Wells Fargo
California
$9K +$5.72K +247 +174%
Simplex Trading
56
Simplex Trading
Illinois
$9K +$9K +393 New
Royal Bank of Canada
57
Royal Bank of Canada
Ontario, Canada
$3K -$151K -7,573 -98%
Citigroup
58
Citigroup
New York
$2K -$8.53K -320 -81%
TRCT
59
Tower Research Capital (TRC)
New York
$2K -$1.04K -37 -34%
MI
60
Markston International
New York
$1K – – –
HCMT
61
Highland Capital Management (Tennessee)
Tennessee
$1K +$1K +50 New
Manulife (Manufacturers Life Insurance)
62
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$1 -$11 -421 -92%
TAM
63
Tocqueville Asset Management
New York
– -$533K -13,531 Closed
BCM
64
Bourgeon Capital Management
Connecticut
– -$522K -13,250 Closed
TA
65
Teachers Advisors
New York
– -$214K -5,433 Closed
California State Teachers Retirement System (CalSTRS)
66
California State Teachers Retirement System (CalSTRS)
California
– -$190K -4,830 Closed
RhumbLine Advisers
67
RhumbLine Advisers
Massachusetts
– -$140K -3,557 Closed
Charles Schwab
68
Charles Schwab
California
– -$129K -3,250 Closed
State Board of Administration of Florida Retirement System
69
State Board of Administration of Florida Retirement System
Florida
– -$112K -2,852 Closed
VOYA Investment Management
70
VOYA Investment Management
Georgia
– -$88K -2,243 Closed
AIG
71
American International Group
New York
– -$64.8K -1,645 Closed
AQR Capital Management
72
AQR Capital Management
Connecticut
– -$55K -1,400 Closed
JG
73
Jefferies Group
New York
– -$53K -1,355 Closed
SG Americas Securities
74
SG Americas Securities
New York
– -$45K -1,137 Closed
Stifel Financial
75
Stifel Financial
Missouri
– -$43K -1,100 Closed
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