RBCN

Rubicon Technology, Inc.
RBCN

Overview Fund Activity
Delisted

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

Back to rankings

113 hedge funds and large institutions have $201M invested in Rubicon Technology, Inc. in 2014 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 52 increasing their positions, 28 reducing their positions, and 32 closing their positions.

Holders
113
Holders Change
-14
Holders Change %
-11.02%
% of All Funds
3.25%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
18
Increased
52
Reduced
28
Closed
32
Calls
$2M
Puts
$1.6M
Net Calls
+$393K
Net Calls Change
-$5.42M

Top Buyers

1
EA
1
Ecofin Advisors
United Kingdom
$9.43M
2
ICM
2
Invicta Capital Management
New York
$10.9M
3
AI
3
Ariel Investments
Illinois
$11.8M
4
Massachusetts Financial Services
4
Massachusetts Financial Services
Massachusetts
$28.9M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$19.8M

Top Sellers

1
WMSA
1
Weiss Multi-Strategy Advisers
New York
$0
2
WRF
2
Waddell & Reed Financial
Kansas
$0
3
SCA
3
SAC Capital Advisors
Connecticut
$0
4
ZDA
4
Zweig-DiMenna Associates
New York
$0
5
RA
5
Royce & Associates
New York
$14.3M
Name Market Value Shares Shares
Change 		Shares
Change %
Massachusetts Financial Services
1
Massachusetts Financial Services
Massachusetts
$28.9M 3,305,272 +372,589 +13%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$19.8M 2,266,717 +218,200 +11%
RA
3
Royce & Associates
New York
$14.3M 1,634,114 -219,328 -12%
AI
4
Ariel Investments
Illinois
$11.8M 1,349,207 +587,690 +77%
BFA
5
BlackRock Fund Advisors
California
$11.5M 1,309,104 +44,508 +4%
ICM
6
Invicta Capital Management
New York
$10.9M 1,250,000 +950,000 +317%
EA
7
Ecofin Advisors
United Kingdom
$9.43M 1,077,171 +1,077,171 New
QAM
8
Quentec Asset Management
New York
$8.71M 995,927 +133,644 +15%
CAM
9
Cortina Asset Management
Wisconsin
$8.33M 951,794 -23,164 -2%
Vanguard Group
10
Vanguard Group
Pennsylvania
$6.98M 797,347 +12,485 +2%
BIT
11
BlackRock Institutional Trust
California
$6.38M 728,935 +94,446 +15%
TAM
12
Tocqueville Asset Management
New York
$5.47M 624,625 +128,322 +26%
Invesco
13
Invesco
Georgia
$5.21M 595,663 +80,757 +16%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$4.39M 501,671 -2,808 -0.6%
State Street
15
State Street
Massachusetts
$3.33M 380,275 -23,508 -6%
RS
16
Robeco Schweiz
Switzerland
$2.83M 320,000 +119,000 +59%
IMIM
17
Irving Magee Investment Management
Pennsylvania
$2.56M 293,080 – –
Northern Trust
18
Northern Trust
Illinois
$2.39M 272,931 -166,184 -38%
Manulife (Manufacturers Life Insurance)
19
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$2.17M 247,488 +758 +0.3%
LAM
20
Lapides Asset Management
Connecticut
$1.98M 226,800 – –
AIA
21
AGF Investments America
Ontario, Canada
$1.94M 221,200 – –
New York State Common Retirement Fund
22
New York State Common Retirement Fund
New York
$1.75M 200,400 +75,400 +60%
Bank of New York Mellon
23
Bank of New York Mellon
New York
$1.57M 179,876 +17,064 +10%
RGI
24
River Global Investors
United Kingdom
$1.52M 173,900 +80,000 +85%
DADC
25
D.A. Davidson & Co
Montana
$1.39M 158,490 +126,015 +388%
1
2 3 4 5