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122 hedge funds and large institutions have $632M invested in Rambus in 2013 Q4 according to their latest regulatory filings, with 23 funds opening new positions, 42 increasing their positions, 36 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed

40% more call options, than puts

Call options by funds: $14.4M | Put options by funds: $10.3M

17% more repeat investments, than reductions

Existing positions increased: 42 | Existing positions reduced: 36

3% more capital invested

Capital invested by funds: $611M → $632M (+$20.8M)

0% more funds holding

Funds holding: 122122 (0)

0% more first-time investments, than exits

New positions opened: 23 | Existing positions closed: 23

Holders
122
Holders Change
Holders Change %
0%
% of All Funds
3.54%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
23
Increased
42
Reduced
36
Closed
23
Calls
$14.4M
Puts
$10.3M
Net Calls
+$4.1M
Net Calls Change
+$693K
Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$107M -$30.2M -3,353,400 -23%
Primecap Management
2
Primecap Management
California
$81.7M -$101K -11,200 -0.1%
WRF
3
Waddell & Reed Financial
Kansas
$79.8M +$30M +3,331,531 +65%
Vanguard Group
4
Vanguard Group
Pennsylvania
$64.9M +$4.32M +479,226 +8%
BIT
5
BlackRock Institutional Trust
California
$28.6M -$738K -81,988 -3%
BFA
6
BlackRock Fund Advisors
California
$26.2M -$1.19M -131,859 -5%
Neuberger Berman Group
7
Neuberger Berman Group
New York
$23.6M +$4.39M +487,943 +24%
Luther King Capital Management (LKCM)
8
Luther King Capital Management (LKCM)
Texas
$22.4M -$452K -50,240 -2%
State Street
9
State Street
Massachusetts
$20.6M +$1.14K +127 +0%
Dimensional Fund Advisors
10
Dimensional Fund Advisors
Texas
$19.5M +$1.71M +190,108 +10%
Northern Trust
11
Northern Trust
Illinois
$15M +$271K +30,103 +2%
TA
12
Teachers Advisors
New York
$10.7M +$550K +61,080 +6%
Norges Bank
13
Norges Bank
Norway
$9.83M -$270K -30,000 -3%
Millennium Management
14
Millennium Management
New York
$8.89M +$7.11M +789,061 +527%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$8.36M +$1.98M +220,096 +33%
Bank of New York Mellon
16
Bank of New York Mellon
New York
$6.93M -$211K -23,427 -3%
BIM
17
Bogle Investment Management
Massachusetts
$6.78M +$6.45M +716,051 New
Goldman Sachs
18
Goldman Sachs
New York
$4.89M -$1.75M -193,856 -27%
Deutsche Bank
19
Deutsche Bank
Germany
$4.77M +$2.9M +321,791 +177%
Fuller & Thaler Asset Management
20
Fuller & Thaler Asset Management
California
$4.71M +$4.48M +497,700 New
Two Sigma Investments
21
Two Sigma Investments
New York
$4.33M +$1.81M +201,432 +79%
Renaissance Technologies
22
Renaissance Technologies
New York
$4.24M -$1.78M -197,600 -31%
TCIM
23
TIAA CREF Investment Management
New York
$4.18M -$53.1K -5,900 -1%
Ameriprise
24
Ameriprise
Minnesota
$3.7M -$1.69M -187,647 -32%
CS
25
Credit Suisse
Switzerland
$3.41M +$1.29M +143,291 +66%

RMBS Hedge Fund Activity: Q4 2013 in Review

122 of the 3,445 institutional investors tracked by Wall St. Rank reported a position in Rambus (RMBS) for Q4 2013, worth a combined $632M — up 3.4% from $611M a quarter earlier.

Fund positioning in RMBS was balanced in Q4 2013: 23 funds opened new positions, 23 closed out, 42 added to existing stakes and 36 trimmed.

The largest buyer was Waddell & Reed Financial, adding an estimated $30M. The largest seller was Fidelity Investments, cutting an estimated $30.2M.

  • 122 institutional investors held Rambus (RMBS) as of Q4 2013, unchanged from Q3 2013.
  • Funds reported $632M of Rambus stock for Q4 2013, up 3.4% quarter-over-quarter.
  • 23 funds opened new Rambus positions in Q4 2013 and 23 closed out, a net change of 0 holders.
  • The largest Rambus buyer in Q4 2013 was Waddell & Reed Financial, an estimated $30M added.
  • The largest Rambus seller in Q4 2013 was Fidelity Investments, an estimated $30.2M sold.

Based on aggregated 13F filings for Q4 2013.