551 hedge funds and large institutions have $8.82B invested in Rambus in 2026 Q1 according to their latest regulatory filings, with 85 funds opening new positions, 184 increasing their positions, 207 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

more funds holding

Funds holding:

4% less capital invested

Capital invested by funds: $9.18B → $8.82B (-$356M)

11% less repeat investments, than reductions

Existing positions increased: 184 | Existing positions reduced: 207

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
551
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
$49.5M
Puts
$26.8M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
SRFM
51
Shannon River Fund Management
New York
$28.7M
NAMI
52
Nomura Asset Management International
Pennsylvania
$28.1M
Franklin Resources
53
Franklin Resources
California
$27.8M
RhumbLine Advisers
54
RhumbLine Advisers
Massachusetts
$27.5M
TCM
55
TimesSquare Capital Management
New York
$26.9M
EMFAT
56
Emerald Mutual Fund Advisers Trust
Pennsylvania
$26.4M
First Trust Advisors
57
First Trust Advisors
Illinois
$26.4M
AllianceBernstein
58
AllianceBernstein
Tennessee
$24.6M
GIM
59
Granahan Investment Management
Massachusetts
$24.1M
BNP Paribas Financial Markets
60
BNP Paribas Financial Markets
France
$22.7M
ACH
61
ArrowMark Colorado Holdings
Colorado
$22.5M
UBS AM
62
UBS AM
Illinois
$20.7M
California Public Employees Retirement System
63
California Public Employees Retirement System
California
$19.6M
RIM
64
Ranger Investment Management
Texas
$19.3M
Federated Hermes
65
Federated Hermes
Pennsylvania
$18.5M
Swiss National Bank
66
Swiss National Bank
Switzerland
$18.3M
Osaic Holdings
67
Osaic Holdings
Arizona
$17.2M
Canada Pension Plan Investment Board
68
Canada Pension Plan Investment Board
Ontario, Canada
$17.2M
Victory Capital Management
69
Victory Capital Management
Texas
$15.7M
HighTower Advisors
70
HighTower Advisors
Illinois
$15.6M
DCM
71
Driehaus Capital Management
Illinois
$15M
Thrivent Financial for Lutherans
72
Thrivent Financial for Lutherans
Minnesota
$13.9M
GT
73
Glenmede Trust
Pennsylvania
$13.7M
Legal & General Group
74
Legal & General Group
United Kingdom
$13.7M
SBH
75
Segall Bryant & Hamill
Illinois
$13.5M