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 %
NTCOC
26
Northern Trust Company of Connecticut
Connecticut
$1.89M -$461K -3,808 -20%
Ameriprise
27
Ameriprise
Minnesota
$1.82M +$410K +3,383 +29%
California Public Employees Retirement System
28
California Public Employees Retirement System
California
$1.68M – – –
U
29
UBS
Switzerland
$1.48M -$246K -2,035 -14%
Principal Financial Group
30
Principal Financial Group
Iowa
$1.17M +$72.7K +600 +7%
BL
31
Bolton LP
Connecticut
$1.13M +$1.13M +9,360 New
Susquehanna International Group
32
Susquehanna International Group
Pennsylvania
$1.09M +$818K +6,761 +299%
EI
33
EAM Investors
California
$1.08M +$1.08M +8,916 New
Geode Capital Management
34
Geode Capital Management
Massachusetts
$1.03M +$29.4K +243 +3%
ZCA
35
Zeke Capital Advisors
Pennsylvania
$1.02M +$1.02M +8,400 New
RFC
36
Russell Frank Company
Washington
$953K +$698K +5,758 +273%
TCIM
37
TIAA CREF Investment Management
New York
$930K -$59.5K -491 -6%
Morgan Stanley
38
Morgan Stanley
New York
$887K +$303K +2,498 +52%
BIM
39
BlackRock Investment Management
Delaware
$851K +$12.2K +101 +1%
VDBMI
40
Van Den Berg Management I
Texas
$805K +$805K +6,647 New
BCM
41
Bridgeway Capital Management
Texas
$598K -$363K -3,000 -38%
GC
42
Guggenheim Capital
Illinois
$581K +$45.9K +379 +9%
CS
43
Credit Suisse
Switzerland
$576K +$19.5K +161 +4%
RGI
44
River Global Investors
United Kingdom
$562K +$126K +1,040 +29%
DADC
45
D.A. Davidson & Co
Montana
$539K -$2.45M -20,212 -82%
Public Sector Pension Investment Board (PSP Investments)
46
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$506K +$110K +910 +28%
RB
47
Rodgers Brothers
Pennsylvania
$505K -$116K -960 -19%
Prudential Financial
48
Prudential Financial
New Jersey
$484K +$25.4K +210 +6%
New York State Teachers Retirement System (NYSTRS)
49
New York State Teachers Retirement System (NYSTRS)
New York
$463K -$10.9K -90 -2%
JPMorgan Chase & Co
50
JPMorgan Chase & Co
New York
$448K -$75.5K -623 -14%
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