407 hedge funds and large institutions have $5.04B invested in Rambus in 2025 Q1 according to their latest regulatory filings, with 78 funds opening new positions, 157 increasing their positions, 128 reducing their positions, and 55 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
407
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$31M
Puts
$22M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
OCM
51
Osterweis Capital Management
California
$14.8M
SBH
52
Segall Bryant & Hamill
Illinois
$14.8M
Ameriprise
53
Ameriprise
Minnesota
$14.5M
Prudential Financial
54
Prudential Financial
New Jersey
$13.3M
Macquarie Group
55
Macquarie Group
Australia
$13.2M
PCM
56
Penn Capital Management
Pennsylvania
$12.8M
PCM
57
PenderFund Capital Management
British Columbia, Canada
$12.7M
Qube Research & Technologies (QRT)
58
Qube Research & Technologies (QRT)
United Kingdom
$12.7M
Millennium Management
59
Millennium Management
New York
$12.2M
AQR Capital Management
60
AQR Capital Management
Connecticut
$12.2M
Legal & General Group
61
Legal & General Group
United Kingdom
$11.9M
SC
62
SummitTX Capital
Texas
$11.8M
AllianceBernstein
63
AllianceBernstein
Tennessee
$11.8M
Swiss National Bank
64
Swiss National Bank
Switzerland
$10.7M
SSA
65
Schonfeld Strategic Advisors
New York
$10.5M
Royal Bank of Canada
66
Royal Bank of Canada
Ontario, Canada
$10.4M
Janus Henderson Group
67
Janus Henderson Group
United Kingdom
$10.2M
SIMG
68
Stephens Investment Management Group
Texas
$10M
HighTower Advisors
69
HighTower Advisors
Illinois
$10M
Deutsche Bank
70
Deutsche Bank
Germany
$9.98M
Mirae Asset Global ETFs Holdings
71
Mirae Asset Global ETFs Holdings
Hong Kong
$9.47M
CWM
72
Congress Wealth Management
Massachusetts
$9.46M
Barclays
73
Barclays
United Kingdom
$9.34M
RA
74
Royce & Associates
New York
$9.31M
Assenagon Asset Management
75
Assenagon Asset Management
Luxembourg
$9.26M