Rambus
RMBS
398 hedge funds and large institutions have $6.78B invested in Rambus in 2023 Q4 according to their latest regulatory filings, with 93 funds opening new positions, 119 increasing their positions, 144 reducing their positions, and 39 closing their positions.
138% more first-time investments, than exits
New positions opened: 93 | Existing positions closed: 39
80% more call options, than puts
Call options by funds: $96.8M | Put options by funds: $53.7M
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
24% more capital invested
Capital invested by funds: $5.48B → $6.78B (+$1.3B)
14% more funds holding
Funds holding: 349 → 398 (+49)
2.61% more ownership
Funds ownership: 89.76% → 92.37% (+2.6%)
17% less repeat investments, than reductions
Existing positions increased: 119 | Existing positions reduced: 144
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$134M |
| 2 |
Neuberger Berman Group
New York
|
+$116M |
| 3 |
Millennium Management
New York
|
+$103M |
| 4 |
Lord, Abbett & Co
Jersey City,
New Jersey
|
+$61M |
| 5 |
JP Morgan Chase
New York
|
+$31.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$214M |
| 2 |
WRCM
Whale Rock Capital Management
Boston,
Massachusetts
|
-$105M |
| 3 |
Ameriprise
Minneapolis,
Minnesota
|
-$104M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
-$86.9M |
| 5 |
VNIM
Vaughan Nelson Investment Management
Houston,
Texas
|
-$24.2M |
RMBS Hedge Fund Activity: Q4 2023 in Review
398 of the 6,869 institutional investors tracked by Wall St. Rank reported a position in Rambus (RMBS) for Q4 2023, worth a combined $6.78B — up 24% from $5.48B a quarter earlier.
Buyers outnumbered sellers: 93 funds opened new RMBS positions and 39 closed out — a net gain of 54 holders — while 119 added to existing stakes and 144 trimmed.
The largest buyer was Wellington Management Group, adding an estimated $134M. The largest seller was BlackRock, cutting an estimated $214M.
- 398 institutional investors held Rambus (RMBS) as of Q4 2023, up from 349 in Q3 2023.
- Funds reported $6.78B of Rambus stock for Q4 2023, up 24% quarter-over-quarter.
- 93 funds opened new Rambus positions in Q4 2023 and 39 closed out, a net change of +54 holders.
- The largest Rambus buyer in Q4 2023 was Wellington Management Group, an estimated $134M added.
- The largest Rambus seller in Q4 2023 was BlackRock, an estimated $214M sold.
Based on aggregated 13F filings for Q4 2023.