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RBCN

Rubicon Technology, Inc.

Delisted

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

56 hedge funds and large institutions have $20M invested in Rubicon Technology, Inc. in 2015 Q3 according to their latest regulatory filings, with 5 funds opening new positions, 15 increasing their positions, 19 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed

15% less funds holding

Funds holding: 6656 (-10)

21% less repeat investments, than reductions

Existing positions increased: 15 | Existing positions reduced: 19

62% less capital invested

Capital invested by funds: $52.3M → $20M (-$32.3M)

64% less first-time investments, than exits

New positions opened: 5 | Existing positions closed: 14

100% less call options, than puts

Call options by funds: $0 | Put options by funds: $2K

Holders
56
Holders Change
-10
Holders Change %
-15.15%
% of All Funds
1.56%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
5
Increased
15
Reduced
19
Closed
14
Calls
Puts
$2K
Net Calls
-$2K
Net Calls Change
+$4K
Name Holding Trade Value Shares
Change
Change in
Stake
AI
1
Ariel Investments
Illinois
$5.29M +$262K +15,951 +3%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$3.23M
CWAM
3
Columbia Wanger Asset Management
Illinois
$2.97M -$474K -28,884 -9%
EA
4
Ecofin Advisors
United Kingdom
$1.6M +$255K +15,536 +11%
RA
5
Royce & Associates
New York
$1.17M -$788K -48,030 -30%
AF
6
Aegis Financial
Virginia
$906K
Vanguard Group
7
Vanguard Group
Pennsylvania
$791K +$10.3K +629 +0.8%
BIT
8
BlackRock Institutional Trust
California
$539K
New York State Common Retirement Fund
9
New York State Common Retirement Fund
New York
$521K +$14.9K +910 +2%
Dimensional Fund Advisors
10
Dimensional Fund Advisors
Texas
$449K -$27.7K -1,687 -4%
PRCP
11
Pacific Ridge Capital Partners
Oregon
$336K +$886 +54 +0.2%
Renaissance Technologies
12
Renaissance Technologies
New York
$295K +$52.5K +3,200 +13%
Northern Trust
13
Northern Trust
Illinois
$220K -$315K -19,191 -47%
LAM
14
Lapides Asset Management
Connecticut
$166K -$196K -11,920 -43%
AA
15
Ancora Advisors
Ohio
$166K +$114K +6,920 +76%
ERSOT
16
Employees Retirement System of Texas
Texas
$162K
Geode Capital Management
17
Geode Capital Management
Massachusetts
$122K +$213 +13 +0.1%
Goldman Sachs
18
Goldman Sachs
New York
$114K -$49.6K -3,024 -22%
Millennium Management
19
Millennium Management
New York
$102K +$80K +4,876 +98%
ZCA
20
Zeke Capital Advisors
Pennsylvania
$85K
UBS Group
21
UBS Group
Switzerland
$70K -$59.8K -3,643 -35%
BFA
22
BlackRock Fund Advisors
California
$69K -$2.92K -178 -3%
T. Rowe Price Associates
23
T. Rowe Price Associates
Maryland
$69K +$8.2K +500 +8%
California Public Employees Retirement System
24
California Public Employees Retirement System
California
$63K
Ameriprise
25
Ameriprise
Minnesota
$59K +$94.3K +5,746 New

RBCN Hedge Fund Activity: Q3 2015 in Review

56 of the 3,582 institutional investors tracked by Wall St. Rank reported a position in Rubicon Technology, Inc. (RBCN) for Q3 2015, worth a combined $20M — down 62% from $52.3M a quarter earlier.

Sellers outnumbered buyers: 14 funds closed out of RBCN and 5 opened new positions — a net loss of 9 holders — while 19 trimmed existing stakes and 15 added.

The largest buyer was Ariel Investments, adding an estimated $262K. The largest seller was Royce & Associates, cutting an estimated $788K.

  • 56 institutional investors held Rubicon Technology, Inc. (RBCN) as of Q3 2015, down from 66 in Q2 2015.
  • Funds reported $20M of Rubicon Technology, Inc. stock for Q3 2015, down 62% quarter-over-quarter.
  • 5 funds opened new Rubicon Technology, Inc. positions in Q3 2015 and 14 closed out, a net change of -9 holders.
  • The largest Rubicon Technology, Inc. buyer in Q3 2015 was Ariel Investments, an estimated $262K added.
  • The largest Rubicon Technology, Inc. seller in Q3 2015 was Royce & Associates, an estimated $788K sold.

Based on aggregated 13F filings for Q3 2015.