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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
BlackRock
1
BlackRock
New York
$1.5B +$45.9M +466,493 +3%
Vanguard Group
2
Vanguard Group
Pennsylvania
$1.13B -$40.4M -410,844 -3%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$495M +$13.8M +140,226 +3%
State Street
4
State Street
Massachusetts
$391M -$13.6M -138,422 -3%
Invesco
5
Invesco
Georgia
$381M +$169M +1,716,621 +71%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$261M +$9.27M +94,214 +3%
JP Morgan Chase
7
JP Morgan Chase
New York
$190M -$48.4M -491,495 -19%
AllianceBernstein
8
AllianceBernstein
Tennessee
$175M +$7.7M +78,278 +4%
Dimensional Fund Advisors
9
Dimensional Fund Advisors
Texas
$174M -$3.46M -35,169 -2%
Norges Bank
10
Norges Bank
Norway
$156M +$167M +1,701,551 New
Fidelity Investments
11
Fidelity Investments
Massachusetts
$146M +$21M +213,505 +16%
CAM
12
Congress Asset Management
Massachusetts
$130M +$6.24M +63,430 +5%
EIG
13
EdgePoint Investment Group
Ontario, Canada
$129M -$126M -1,276,270 -48%
Swedbank
14
Swedbank
Sweden
$125M -$33.2M -337,000 -20%
Charles Schwab
15
Charles Schwab
California
$122M -$1.1M -11,221 -0.8%
Northern Trust
16
Northern Trust
Illinois
$121M -$6.92M -70,323 -5%
Neuberger Berman Group
17
Neuberger Berman Group
New York
$120M -$17.3M -176,057 -12%
Bank of America
18
Bank of America
North Carolina
$115M -$29.6M -301,023 -19%
Goldman Sachs
19
Goldman Sachs
New York
$110M +$714K +7,258 +0.6%
N
20
Nuveen
North Carolina
$101M -$17.8M -181,035 -14%
Bank of New York Mellon
21
Bank of New York Mellon
New York
$101M -$49.6M -504,182 -32%
Barclays
22
Barclays
United Kingdom
$94M +$12.6M +128,078 +14%
DCM
23
Driehaus Capital Management
Illinois
$87.7M +$93.9M +954,164 New
Raymond James Financial
24
Raymond James Financial
Florida
$87.1M -$25.4M -258,039 -22%
Rafferty Asset Management
25
Rafferty Asset Management
New York
$86M +$3.35M +34,034 +4%