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122 hedge funds and large institutions have $611M invested in Rambus in 2013 Q3 according to their latest regulatory filings, with 21 funds opening new positions, 40 increasing their positions, 34 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

62% more first-time investments, than exits

New positions opened: 21 | Existing positions closed: 13

32% more call options, than puts

Call options by funds: $14.2M | Put options by funds: $10.8M

21% more capital invested

Capital invested by funds: $503M → $611M (+$107M)

18% more repeat investments, than reductions

Existing positions increased: 40 | Existing positions reduced: 34

4% more funds holding

Funds holding: 117122 (+5)

Holders
122
Holders Change
+5
Holders Change %
+4.27%
% of All Funds
3.96%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
21
Increased
40
Reduced
34
Closed
13
Calls
$14.2M
Puts
$10.8M
Net Calls
+$3.41M
Net Calls Change
+$29K
Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$138M +$11.3M +1,228,600 +9%
Primecap Management
2
Primecap Management
California
$81.2M -$1.39M -151,800 -2%
Vanguard Group
3
Vanguard Group
Pennsylvania
$59.9M +$2.68M +292,593 +5%
WRF
4
Waddell & Reed Financial
Kansas
$47.9M +$8.73M +953,200 +23%
BIT
5
BlackRock Institutional Trust
California
$29.2M +$37.5K +4,094 +0.1%
BFA
6
BlackRock Fund Advisors
California
$27.2M +$3.18M +347,367 +14%
Luther King Capital Management (LKCM)
7
Luther King Capital Management (LKCM)
Texas
$22.7M +$16.2M +1,766,430 +273%
State Street
8
State Street
Massachusetts
$20.4M +$403K +44,061 +2%
Neuberger Berman Group
9
Neuberger Berman Group
New York
$18.9M +$401K +43,772 +2%
Dimensional Fund Advisors
10
Dimensional Fund Advisors
Texas
$17.6M +$3.92M +427,617 +30%
Northern Trust
11
Northern Trust
Illinois
$14.6M +$290K +31,622 +2%
Norges Bank
12
Norges Bank
Norway
$10M
TA
13
Teachers Advisors
New York
$10M -$40.5K -4,427 -0.4%
CM
14
Castleark Management
Illinois
$8.67M +$6.36M +694,887 New
Bank of New York Mellon
15
Bank of New York Mellon
New York
$7.1M +$247K +26,928 +4%
Goldman Sachs
16
Goldman Sachs
New York
$6.67M +$1.68M +183,421 +35%
Geode Capital Management
17
Geode Capital Management
Massachusetts
$6.23M +$1.59M +173,597 +35%
Renaissance Technologies
18
Renaissance Technologies
New York
$6.07M -$389K -42,500 -6%
Ameriprise
19
Ameriprise
Minnesota
$5.44M +$4.24M +462,973 +401%
RCMC
20
RK Capital Management (Colorado)
Colorado
$5.13M +$5M +546,200 New
TCIM
21
TIAA CREF Investment Management
New York
$4.21M -$75.6K -8,250 -2%
FC
22
FIC Capital
New York
$3.1M
SCM
23
SG Capital Management
Illinois
$2.97M +$2.9M +316,385 New
BIM
24
BlackRock Investment Management
Delaware
$2.95M +$161K +17,601 +6%
Susquehanna International Group
25
Susquehanna International Group
Pennsylvania
$2.95M +$199K +21,737 +7%

RMBS Hedge Fund Activity: Q3 2013 in Review

122 of the 3,084 institutional investors tracked by Wall St. Rank reported a position in Rambus (RMBS) for Q3 2013, worth a combined $611M — up 21% from $503M a quarter earlier.

Buyers outnumbered sellers: 21 funds opened new RMBS positions and 13 closed out — a net gain of 8 holders — while 40 added to existing stakes and 34 trimmed.

The largest buyer was Luther King Capital Management (LKCM), adding an estimated $16.2M. The largest seller was Bogle Investment Management, exiting entirely with an estimated $6.47M sold.

  • 122 institutional investors held Rambus (RMBS) as of Q3 2013, up from 117 in Q2 2013.
  • Funds reported $611M of Rambus stock for Q3 2013, up 21% quarter-over-quarter.
  • 21 funds opened new Rambus positions in Q3 2013 and 13 closed out, a net change of +8 holders.
  • The largest Rambus buyer in Q3 2013 was Luther King Capital Management (LKCM), an estimated $16.2M added.
  • The largest Rambus seller in Q3 2013 was Bogle Investment Management, an estimated $6.47M sold.

Based on aggregated 13F filings for Q3 2013.