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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 %
PCM
51
Penn Capital Management
Pennsylvania
$18.4M 286,263 +39,434 +16%
OCM
52
Osterweis Capital Management
California
$18.2M 284,410 -1,895 -0.7%
AllianceBernstein
53
AllianceBernstein
Tennessee
$17.3M 270,871 +43,073 +19%
SC
54
SummitTX Capital
Texas
$17.2M 268,895 +40,731 +18%
Prudential Financial
55
Prudential Financial
New Jersey
$16.9M 263,371 +6,115 +2%
SBH
56
Segall Bryant & Hamill
Illinois
$16.8M 262,577 -23,185 -8%
Macquarie Group
57
Macquarie Group
Australia
$16.4M 256,093 +613 +0.2%
Ameriprise
58
Ameriprise
Minnesota
$16.1M 251,918 -28,147 -10%
Royal Bank of Canada
59
Royal Bank of Canada
Ontario, Canada
$15.4M 240,224 +38,502 +19%
Legal & General Group
60
Legal & General Group
United Kingdom
$14.7M 230,197 +270 +0.1%
BA
61
Bridgewater Associates
Connecticut
$14.5M 226,869 +148,790 +191%
Loomis, Sayles & Company
62
Loomis, Sayles & Company
Massachusetts
$14.1M 220,228 +220,228 New
HighTower Advisors
63
HighTower Advisors
Illinois
$14M 218,320 +24,776 +13%
Lazard Asset Management
64
Lazard Asset Management
New York
$13.7M 214,437 +105,860 +97%
Janus Henderson Group
65
Janus Henderson Group
United Kingdom
$13.7M 213,403 +23,085 +12%
BNP Paribas Financial Markets
66
BNP Paribas Financial Markets
France
$13.4M 209,330 +128,660 +159%
New York State Common Retirement Fund
67
New York State Common Retirement Fund
New York
$13.3M 207,239 -145,073 -41%
Swiss National Bank
68
Swiss National Bank
Switzerland
$13.1M 205,200 -1,200 -0.6%
SIMG
69
Stephens Investment Management Group
Texas
$12.5M 195,123 +1,462 +0.8%
CWM
70
Congress Wealth Management
Massachusetts
$12.2M 191,225 +8,569 +5%
California Public Employees Retirement System
71
California Public Employees Retirement System
California
$11.9M 185,883 +13,499 +8%
Mirae Asset Global ETFs Holdings
72
Mirae Asset Global ETFs Holdings
Hong Kong
$11.2M 174,218 -8,722 -5%
AG
73
Algert Global
California
$10.9M 170,844 -452 -0.3%
Wells Fargo
74
Wells Fargo
California
$10.9M 170,639 +61,297 +56%
DekaBank Deutsche Girozentrale
75
DekaBank Deutsche Girozentrale
Germany
$10M 154,173 – –
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