We are live on ! Find out more

552 hedge funds and large institutions have $9.18B invested in Rambus in 2025 Q4 according to their latest regulatory filings, with 102 funds opening new positions, 190 increasing their positions, 194 reducing their positions, and 53 closing their positions.

New
Increased
Maintained
Reduced
Closed

92% more first-time investments, than exits

New positions opened: 102 | Existing positions closed: 53

40% more call options, than puts

Call options by funds: $65.1M | Put options by funds: $46.4M

8% more funds holding

Funds holding: 512552 (+40)

0.94% more ownership

Funds ownership: 91.78%92.72% (+0.94%)

2% less repeat investments, than reductions

Existing positions increased: 190 | Existing positions reduced: 194

11% less capital invested

Capital invested by funds: $10.3B → $9.18B (-$1.11B)

50% less funds holding in top 10

Funds holding in top 10: 63 (-3)

Holders
552
Holders Change
+40
Holders Change %
+7.81%
% of All Funds
6.72%
Holding in Top 10
3
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-50%
% of All Funds
0.04%
New
102
Increased
190
Reduced
194
Closed
53
Calls
$65.1M
Puts
$46.4M
Net Calls
+$18.7M
Net Calls Change
-$41.3M
Name Holding Trade Value Shares
Change
Change in
Stake
Acadian Asset Management
76
Acadian Asset Management
Massachusetts
$15.6M +$816K +8,293 +5%
AI
77
Axiom Investors
Connecticut
$15M +$16.1M +163,242 New
Man Group
78
Man Group
United Kingdom
$15M +$2.81M +28,565 +21%
HighTower Advisors
79
HighTower Advisors
Illinois
$14.5M +$339K +3,441 +2%
Mirae Asset Global Investments
80
Mirae Asset Global Investments
South Korea
$14.4M +$2.7M +27,472 +21%
BA
81
Bridgewater Associates
Connecticut
$14.2M -$2.05M -20,818 -12%
Mirae Asset Global ETFs Holdings
82
Mirae Asset Global ETFs Holdings
Hong Kong
$13.8M -$237K -2,409 -2%
VanEck Associates
83
VanEck Associates
New York
$13.5M -$530K -5,389 -4%
Two Sigma Investments
84
Two Sigma Investments
New York
$13.3M +$6.55M +66,513 +85%
Russell Investments Group
85
Russell Investments Group
United Kingdom
$13.1M -$579K -5,881 -4%
Universal-Beteiligungs- und Servicegesellschaft
86
Universal-Beteiligungs- und Servicegesellschaft
Germany
$12.7M +$8.39M +85,257 +163%
MOACM
87
Mutual of America Capital Management
New York
$12.5M -$540K -5,484 -4%
Federated Hermes
88
Federated Hermes
Pennsylvania
$11.9M +$1.92M +19,519 +18%
Retirement Systems of Alabama
89
Retirement Systems of Alabama
Alabama
$11.9M -$87.6K -890 -0.7%
Janney Montgomery Scott
90
Janney Montgomery Scott
Pennsylvania
$11.3M +$12.1M +122,562 New
Nordea Investment Management
91
Nordea Investment Management
Sweden
$11.2M -$1.82M -18,454 -13%
IIM
92
INTECH Investment Management
Florida
$11M +$5.46M +55,481 +86%
Manulife (Manufacturers Life Insurance)
93
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$10.5M -$136K -1,382 -1%
AssetMark Inc
94
AssetMark Inc
California
$10.2M -$1.02M -10,395 -9%
RG
95
Renaissance Group
Kentucky
$10M +$30.3K +308 +0.3%
SBH
96
Segall Bryant & Hamill
Illinois
$9.96M -$13.7M -139,650 -56%
DekaBank Deutsche Girozentrale
97
DekaBank Deutsche Girozentrale
Germany
$9.52M
Schroder Investment Management Group
98
Schroder Investment Management Group
United Kingdom
$9.38M -$4.33M -44,038 -31%
Tudor Investment Corp
99
Tudor Investment Corp
Connecticut
$9.34M +$10M +101,605 New
State of Wisconsin Investment Board
100
State of Wisconsin Investment Board
Wisconsin
$9.31M -$1.35M -13,674 -12%