RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

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54 hedge funds and large institutions have $22.4M invested in Rubicon Technology, Inc. in 2015 Q4 according to their latest regulatory filings, with 5 funds opening new positions, 14 increasing their positions, 18 reducing their positions, and 7 closing their positions.

Holders
54
Holders Change
-2
Holders Change %
-3.57%
% of All Funds
1.42%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
5
Increased
14
Reduced
18
Closed
7
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
RGI
1
River Global Investors
United Kingdom
$537K
2
Macquarie Group
2
Macquarie Group
Australia
$383K
3
Ameriprise
3
Ameriprise
Minnesota
$405K
4
AFM
4
Anson Funds Management
Texas
$158K
5
Renaissance Technologies
5
Renaissance Technologies
New York
$453K

Top Sellers

1
AI
1
Ariel Investments
Illinois
$5.44M
2
RA
2
Royce & Associates
New York
$1.11M
3
LAM
3
Lapides Asset Management
Connecticut
$0
4
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$355K
5
Millennium Management
5
Millennium Management
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
AI
1
Ariel Investments
Illinois
$5.44M 4,767,365 -371,400 -7%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$3.58M 3,139,517 – –
CWAM
3
Columbia Wanger Asset Management
Illinois
$3.3M 2,894,207 +12,247 +0.4%
EA
4
Ecofin Advisors
United Kingdom
$1.72M 1,511,716 -39,969 -3%
RA
5
Royce & Associates
New York
$1.11M 975,549 -159,500 -14%
AF
6
Aegis Financial
Virginia
$1M 879,200 – –
Vanguard Group
7
Vanguard Group
Pennsylvania
$869K 762,874 -5,302 -0.7%
BIT
8
BlackRock Institutional Trust
California
$597K 523,690 – –
New York State Common Retirement Fund
9
New York State Common Retirement Fund
New York
$577K 505,790 – –
RGI
10
River Global Investors
United Kingdom
$537K 471,900 +471,900 New
Renaissance Technologies
11
Renaissance Technologies
New York
$453K 397,691 +111,291 +39%
Ameriprise
12
Ameriprise
Minnesota
$405K 355,289 +297,829 +518%
PRCP
13
Pacific Ridge Capital Partners
Oregon
$395K 346,480 +20,190 +6%
Macquarie Group
14
Macquarie Group
Australia
$383K 336,123 +336,123 New
Dimensional Fund Advisors
15
Dimensional Fund Advisors
Texas
$355K 311,426 -124,925 -29%
Northern Trust
16
Northern Trust
Illinois
$241K 211,536 -1,848 -0.9%
AA
17
Ancora Advisors
Ohio
$183K 160,700 – –
ERSOT
18
Employees Retirement System of Texas
Texas
$179K 157,100 – –
AFM
19
Anson Funds Management
Texas
$158K 138,955 +138,955 New
Geode Capital Management
20
Geode Capital Management
Massachusetts
$135K 118,734 +126 +0.1%
ZCA
21
Zeke Capital Advisors
Pennsylvania
$95K 83,000 – –
BFA
22
BlackRock Fund Advisors
California
$79K 69,582 +2,320 +3%
T. Rowe Price Associates
23
T. Rowe Price Associates
Maryland
$76K 66,600 – –
California Public Employees Retirement System
24
California Public Employees Retirement System
California
$70K 61,300 – –
Connor, Clark & Lunn Investment Management (CC&L)
25
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$64K 55,750 +13,850 +33%
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