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RBCN

Rubicon Technology, Inc.

Delisted

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

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

133% more call options, than puts

Call options by funds: $2M | Put options by funds: $857K

58% more capital invested

Capital invested by funds: $138M → $217M (+$79.5M)

38% more first-time investments, than exits

New positions opened: 22 | Existing positions closed: 16

26% more repeat investments, than reductions

Existing positions increased: 39 | Existing positions reduced: 31

4% more funds holding

Funds holding: 101105 (+4)

Holders
105
Holders Change
+4
Holders Change %
+3.96%
% of All Funds
3.4%
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
Name Holding Trade Value Shares
Change
Change in
Stake
Massachusetts Financial Services
1
Massachusetts Financial Services
Massachusetts
$25M +$20.9M +206,127 New
Fidelity Investments
2
Fidelity Investments
Massachusetts
$22.1M +$883K +8,714 +5%
RA
3
Royce & Associates
New York
$20M +$341K +3,360 +2%
WRF
4
Waddell & Reed Financial
Kansas
$14.4M +$5.99M +59,100 +98%
BFA
5
BlackRock Fund Advisors
California
$12M +$577K +5,688 +6%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$7.41M -$23.1K -228 -0.4%
Vanguard Group
7
Vanguard Group
Pennsylvania
$7.11M +$263K +2,596 +5%
CAM
8
Cortina Asset Management
Wisconsin
$7.09M -$1.77M -17,434 -23%
BIT
9
BlackRock Institutional Trust
California
$6.79M +$414K +4,088 +8%
TAM
10
Tocqueville Asset Management
New York
$6.09M -$2.46M -24,281 -33%
ICM
11
Invicta Capital Management
New York
$6.05M +$4.05M +40,000 +400%
QAM
12
Quentec Asset Management
New York
$5.98M +$5.01M +49,400 New
EIM
13
Essex Investment Management
Massachusetts
$5.94M +$2.42M +23,852 +95%
Invesco
14
Invesco
Georgia
$5.42M +$2.37M +23,381 +109%
AI
15
Ariel Investments
Illinois
$4.93M -$10.2M -100,998 -71%
State Street
16
State Street
Massachusetts
$3.75M +$69.6K +687 +2%
RIM
17
RS Investment Management
California
$3.64M -$670K -6,610 -18%
IMIM
18
Irving Magee Investment Management
Pennsylvania
$3.55M
LAM
19
Lapides Asset Management
Connecticut
$3.15M -$961K -9,480 -27%
Northern Trust
20
Northern Trust
Illinois
$3.14M +$123K +1,210 +5%
Lord, Abbett & Co
21
Lord, Abbett & Co
New Jersey
$2.81M +$2.35M +23,232 New
SCM
22
Signia Capital Management
Washington
$2.73M -$6.23M -61,486 -73%
Bank of New York Mellon
23
Bank of New York Mellon
New York
$2.26M +$528K +5,212 +39%
AF
24
Aegis Financial
Virginia
$2.17M -$4.04M -39,899 -69%
Royal Bank of Canada
25
Royal Bank of Canada
Ontario, Canada
$2.1M -$1.33M -13,161 -43%

RBCN Hedge Fund Activity: Q3 2013 in Review

105 of the 3,085 institutional investors tracked by Wall St. Rank reported a position in Rubicon Technology, Inc. (RBCN) for Q3 2013, worth a combined $217M — up 58% from $138M a quarter earlier.

Buyers outnumbered sellers: 22 funds opened new RBCN positions and 16 closed out — a net gain of 6 holders — while 39 added to existing stakes and 31 trimmed.

The largest buyer was Massachusetts Financial Services, opening a new position worth an estimated $20.9M. The largest seller was Ariel Investments, cutting an estimated $10.2M.

  • 105 institutional investors held Rubicon Technology, Inc. (RBCN) as of Q3 2013, up from 101 in Q2 2013.
  • Funds reported $217M of Rubicon Technology, Inc. stock for Q3 2013, up 58% quarter-over-quarter.
  • 22 funds opened new Rubicon Technology, Inc. positions in Q3 2013 and 16 closed out, a net change of +6 holders.
  • The largest Rubicon Technology, Inc. buyer in Q3 2013 was Massachusetts Financial Services, an estimated $20.9M added.
  • The largest Rubicon Technology, Inc. seller in Q3 2013 was Ariel Investments, an estimated $10.2M sold.

Based on aggregated 13F filings for Q3 2013.