RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

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105 hedge funds and large institutions have $217M invested in Rubicon Technology, Inc. in 2013 Q3 according to their latest regulatory filings, with 22 funds opening new positions, 39 increasing their positions, 31 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
105
Holders Change
+4
Holders Change %
+3.96%
% of All Funds
3.41%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
22
Increased
39
Reduced
31
Closed
16
Calls
$2M
Puts
$857K
Net Calls
+$1.14M
Net Calls Change
+$564K

Top Buyers

1
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$25M
2
WRF
Waddell & Reed Financial
Kansas
$14.4M
3
QAM
Quentec Asset Management
New York
$5.98M
4
ICM
Invicta Capital Management
New York
$6.06M
5
EIM
Essex Investment Management
Massachusetts
$5.94M

Top Sellers

1
AI
Ariel Investments
Illinois
$4.93M
2
SCM
Signia Capital Management
Washington
$2.73M
3
AF
Aegis Financial
Virginia
$2.17M
4
PC
Passport Capital
California
$0
5
TAM
Tocqueville Asset Management
New York
$6.09M
Name Holding Trade Value Shares
Change 		Shares
Change %
Millennium Management
51
Millennium Management
New York
$442K +$442K +3,653 New
New York State Common Retirement Fund
52
New York State Common Retirement Fund
New York
$432K – – –
Bank of America
53
Bank of America
North Carolina
$412K +$126K +1,045 +44%
California State Teachers Retirement System (CalSTRS)
54
California State Teachers Retirement System (CalSTRS)
California
$385K +$12K +99 +3%
First Trust Advisors
55
First Trust Advisors
Illinois
$339K +$339K +2,799 New
TA
56
Teachers Advisors
New York
$336K +$37.8K +312 +13%
RhumbLine Advisers
57
RhumbLine Advisers
Massachusetts
$325K -$1.57K -13 -0.5%
Deutsche Bank
58
Deutsche Bank
Germany
$309K +$32.1K +266 +12%
State Board of Administration of Florida Retirement System
59
State Board of Administration of Florida Retirement System
Florida
$295K – – –
SCM
60
Sigma Capital Management
Connecticut
$295K +$295K +2,432 New
Charles Schwab
61
Charles Schwab
California
$262K – – –
NFA
62
Nationwide Fund Advisors
Ohio
$242K +$8.36K +69 +4%
Comerica Bank
63
Comerica Bank
Texas
$234K +$9.33K +77 +4%
TPSF
64
Texas Permanent School Fund
Texas
$226K -$6.65K -55 -3%
State of Tennessee, Department of Treasury
65
State of Tennessee, Department of Treasury
Tennessee
$220K +$220K +1,820 New
Public Employees Retirement Association of Colorado
66
Public Employees Retirement Association of Colorado
Colorado
$219K – – –
PPA
67
Parametric Portfolio Associates
Washington
$213K +$8.49K +70 +4%
AIG
68
American International Group
New York
$203K +$43.4K +358 +27%
FNYS
69
First New York Securities
New York
$196K +$196K +1,616 New
ASRS
70
Arizona State Retirement System
Arizona
$190K – – –
MLICM
71
Metropolitan Life Insurance Company (MetLife)
New York
$186K +$186K +1,534 New
Jane Street
72
Jane Street
New York
$184K -$230K -1,894 -56%
VKH
73
Virtu KCG Holdings
New York
$170K +$170K +1,403 New
CAM
74
Capstone Asset Management
Texas
$159K -$8.98K -74 -5%
SNC
75
Stifel Nicolaus & Co
Missouri
$156K +$24.2K +200 +18%
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