We are live on ! Find out more
RBCN

Rubicon Technology, Inc.

Delisted

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

76 hedge funds and large institutions have $91.3M invested in Rubicon Technology, Inc. in 2015 Q1 according to their latest regulatory filings, with 8 funds opening new positions, 25 increasing their positions, 24 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

4% more repeat investments, than reductions

Existing positions increased: 25 | Existing positions reduced: 24

7% less funds holding

Funds holding: 8276 (-6)

11% less capital invested

Capital invested by funds: $102M → $91.3M (-$10.8M)

38% less first-time investments, than exits

New positions opened: 8 | Existing positions closed: 13

96% less call options, than puts

Call options by funds: $3K | Put options by funds: $80K

Holders
76
Holders Change
-6
Holders Change %
-7.32%
% of All Funds
2.03%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
8
Increased
25
Reduced
24
Closed
13
Calls
$3K
Puts
$80K
Net Calls
-$77K
Net Calls Change
-$442K
Name Holding Trade Value Shares
Change
Change in
Stake
AI
1
Ariel Investments
Illinois
$18.2M +$3.47M +81,474 +21%
CWAM
2
Columbia Wanger Asset Management
Illinois
$13.4M +$3.51M +82,401 +32%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$12.4M
RA
4
Royce & Associates
New York
$6.14M +$172K +4,050 +3%
EA
5
Ecofin Advisors
United Kingdom
$5.13M +$189K +4,435 +4%
AF
6
Aegis Financial
Virginia
$3.46M +$1.85M +43,320 +97%
Vanguard Group
7
Vanguard Group
Pennsylvania
$3.02M +$154K +3,624 +5%
BIT
8
BlackRock Institutional Trust
California
$2.98M +$6.56K +154 +0.2%
BFA
9
BlackRock Fund Advisors
California
$2.77M -$17.9K -421 -0.6%
Massachusetts Financial Services
10
Massachusetts Financial Services
Massachusetts
$1.97M +$11.1K +261 +0.5%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$1.83M
New York State Common Retirement Fund
12
New York State Common Retirement Fund
New York
$1.76M +$280K +6,578 +17%
Northern Trust
13
Northern Trust
Illinois
$1.72M -$26.5K -622 -1%
State Street
14
State Street
Massachusetts
$1.72M +$8.56K +201 +0.5%
PRCP
15
Pacific Ridge Capital Partners
Oregon
$1.3M +$44.9K +1,054 +3%
SGAM
16
Smith Group Asset Management
Texas
$1.26M +$1.35M +31,640 +8,938%
LAM
17
Lapides Asset Management
Connecticut
$1.21M -$886K -20,810 -40%
RGI
18
River Global Investors
United Kingdom
$991K
ERSOT
19
Employees Retirement System of Texas
Texas
$942K
Invesco
20
Invesco
Georgia
$865K +$85.7K +2,012 +10%
Bank of New York Mellon
21
Bank of New York Mellon
New York
$582K +$113K +2,661 +22%
TAM
22
Tocqueville Asset Management
New York
$533K -$1.4M -32,924 -71%
BCM
23
Bourgeon Capital Management
Connecticut
$522K +$106K +2,500 +23%
Renaissance Technologies
24
Renaissance Technologies
New York
$501K +$43.1K +1,011 +9%
UBS Group
25
UBS Group
Switzerland
$498K -$24.1K -567 -4%

RBCN Hedge Fund Activity: Q1 2015 in Review

76 of the 3,753 institutional investors tracked by Wall St. Rank reported a position in Rubicon Technology, Inc. (RBCN) for Q1 2015, worth a combined $91.3M — down 11% from $102M a quarter earlier.

Sellers outnumbered buyers: 13 funds closed out of RBCN and 8 opened new positions — a net loss of 5 holders — while 24 trimmed existing stakes and 25 added.

The largest buyer was Columbia Wanger Asset Management, adding an estimated $3.51M. The largest seller was Cortina Asset Management, exiting entirely with an estimated $4.13M sold.

  • 76 institutional investors held Rubicon Technology, Inc. (RBCN) as of Q1 2015, down from 82 in Q4 2014.
  • Funds reported $91.3M of Rubicon Technology, Inc. stock for Q1 2015, down 11% quarter-over-quarter.
  • 8 funds opened new Rubicon Technology, Inc. positions in Q1 2015 and 13 closed out, a net change of -5 holders.
  • The largest Rubicon Technology, Inc. buyer in Q1 2015 was Columbia Wanger Asset Management, an estimated $3.51M added.
  • The largest Rubicon Technology, Inc. seller in Q1 2015 was Cortina Asset Management, an estimated $4.13M sold.

Based on aggregated 13F filings for Q1 2015.