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Rambus
RMBS

Overview Fund Activity

449 hedge funds and large institutions have $6.2B invested in Rambus in 2025 Q2 according to their latest regulatory filings, with 86 funds opening new positions, 187 increasing their positions, 128 reducing their positions, and 38 closing their positions.

Holders
449
Holders Change
+42
Holders Change %
+10.32%
% of All Funds
6.03%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
86
Increased
187
Reduced
128
Closed
38
Calls
$24.3M
Puts
$50.4M
Net Calls
-$26.1M
Net Calls Change
-$35.1M

Top Buyers

1
Norges Bank
1
Norges Bank
Norway
$126M
2
EIG
2
EdgePoint Investment Group
Ontario, Canada
$178M
3
BlackRock
3
BlackRock
New York
$960M
4
Assenagon Asset Management
4
Assenagon Asset Management
Luxembourg
$56.4M
5
WHG
5
Westwood Holdings Group
Texas
$111M

Top Sellers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$300M
2
Invesco
2
Invesco
Georgia
$149M
3
American Century Companies
3
American Century Companies
Missouri
$2.11M
4
SG Americas Securities
4
SG Americas Securities
New York
$550K
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$204M
Name Market Value Shares Shares
Change 		Shares
Change %
ACM
26
Analog Century Management
New York
$53M 827,102 +146,989 +22%
EA
27
Emerald Advisers
Pennsylvania
$45.5M 710,123 +179,421 +34%
AQR Capital Management
28
AQR Capital Management
Connecticut
$44.9M 701,746 +462,116 +193%
PWAM
29
Park West Asset Management
California
$42.3M 660,000 +70,850 +12%
Goldman Sachs
30
Goldman Sachs
New York
$42.2M 659,609 -13,369 -2%
Bank of America
31
Bank of America
North Carolina
$33.5M 523,889 +127,172 +32%
Principal Financial Group
32
Principal Financial Group
Iowa
$33M 516,023 +9,310 +2%
OAM
33
Oberweis Asset Management
Illinois
$32.4M 505,780 -1,570 -0.3%
SAM
34
Silvercrest Asset Management
New York
$30.8M 480,448 -33,480 -7%
PAM
35
Panagora Asset Management
Massachusetts
$30.6M 477,359 +16,921 +4%
Franklin Resources
36
Franklin Resources
California
$27.4M 427,949 +53,569 +14%
UBS AM
37
UBS AM
Illinois
$27.1M 422,805 +113,293 +37%
Millennium Management
38
Millennium Management
New York
$26.8M 418,512 +182,417 +77%
WCM Investment Management
39
WCM Investment Management
California
$26.7M 416,901 +28,246 +7%
EMFAT
40
Emerald Mutual Fund Advisers Trust
Pennsylvania
$26.6M 416,122 +110,016 +36%
SEI Investments
41
SEI Investments
Pennsylvania
$26.1M 407,356 +70,131 +21%
MIM
42
MetLife Investment Management
New Jersey
$25M 390,442 +29,807 +8%
SIC
43
Schwartz Investment Counsel
Michigan
$24.3M 380,337 – –
RhumbLine Advisers
44
RhumbLine Advisers
Massachusetts
$22.5M 352,028 +18,959 +6%
Qube Research & Technologies (QRT)
45
Qube Research & Technologies (QRT)
United Kingdom
$22.4M 349,273 +104,385 +43%
Fidelity Investments
46
Fidelity Investments
Massachusetts
$21.7M 338,261 +295,693 +695%
Lord, Abbett & Co
47
Lord, Abbett & Co
New Jersey
$20.4M 318,322 -23,664 -7%
Barclays
48
Barclays
United Kingdom
$20.2M 316,067 +135,632 +75%
T. Rowe Price Investment Management
49
T. Rowe Price Investment Management
Maryland
$20M 312,952 +312,952 New
GIM
50
Glenmede Investment Management
Pennsylvania
$19M 297,440 +297,440 New
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