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
$17.4M
2
EA
Ecofin Advisors
United Kingdom
$5.75M
3
Fidelity Investments
Fidelity Investments
Massachusetts
$14.3M
4
AF
Aegis Financial
Virginia
$2.04M
5
RA
Royce & Associates
New York
$6.93M

Top Sellers

1
QAM
Quentec Asset Management
New York
$0
2
BFA
BlackRock Fund Advisors
California
$3.24M
3
AIA
AGF Investments America
Ontario, Canada
$0
4
Invesco
Invesco
Georgia
$911K
5
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$2.27M
Name Holding Trade Value Shares
Change 		Shares
Change %
Renaissance Technologies
26
Renaissance Technologies
New York
$535K -$395K -8,641 -42%
TCIM
27
TIAA CREF Investment Management
New York
$502K -$2.79K -61 -0.6%
BCM
28
Bourgeon Capital Management
Connecticut
$491K +$377K +8,250 +330%
BIM
29
BlackRock Investment Management
Delaware
$395K -$61.5K -1,345 -13%
Citadel Advisors
30
Citadel Advisors
Florida
$390K +$372K +8,140 +2,071%
Royal Bank of Canada
31
Royal Bank of Canada
Ontario, Canada
$382K -$15.8K -345 -4%
ZCA
32
Zeke Capital Advisors
Pennsylvania
$379K – – –
Goldman Sachs
33
Goldman Sachs
New York
$360K +$202K +4,419 +128%
Susquehanna International Group
34
Susquehanna International Group
Pennsylvania
$327K -$9.86K -216 -3%
DADC
35
D.A. Davidson & Co
Montana
$308K -$652K -14,296 -68%
AA
36
Ancora Advisors
Ohio
$270K +$270K +5,900 New
T. Rowe Price Associates
37
T. Rowe Price Associates
Maryland
$254K +$92.7K +2,030 +58%
California Public Employees Retirement System
38
California Public Employees Retirement System
California
$247K +$175K +4,340 +242%
GMCM
39
Gruber & McBaine Capital Management
California
$229K – – –
California State Teachers Retirement System (CalSTRS)
40
California State Teachers Retirement System (CalSTRS)
California
$221K +$915 +20 +0.4%
KBC Group
41
KBC Group
Belgium
$202K +$202K +4,423 New
TA
42
Teachers Advisors
New York
$197K +$31.1K +679 +19%
First Trust Advisors
43
First Trust Advisors
Illinois
$169K -$17.6K -385 -9%
NFA
44
Nationwide Fund Advisors
Ohio
$163K +$22.8K +500 +16%
PPA
45
Parametric Portfolio Associates
Washington
$153K -$28.3K -620 -16%
RhumbLine Advisers
46
RhumbLine Advisers
Massachusetts
$152K -$778 -17 -0.5%
CCM
47
Coldstream Capital Management
Washington
$152K +$67.4K +1,472 +80%
Charles Schwab
48
Charles Schwab
California
$149K – – –
Morgan Stanley
49
Morgan Stanley
New York
$143K -$86.5K -1,896 -38%
State Board of Administration of Florida Retirement System
50
State Board of Administration of Florida Retirement System
Florida
$130K – – –
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