551 hedge funds and large institutions have $9.18B invested in Rambus in 2025 Q4 according to their latest regulatory filings, with 101 funds opening new positions, 190 increasing their positions, 194 reducing their positions, and 53 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

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

more funds holding

Funds holding:

more ownership

Funds ownership:

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
551
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$65.1M
Puts
$46.4M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
BC
426
Bayforest Capital
United Kingdom
$117K
UB
427
UMB Bank
Missouri
$116K
SOW
428
State of Wyoming
Wyoming
$101K
MCM
429
MAI Capital Management
Ohio
$98.7K
KAS
430
Kemnay Advisory Services
New York
$98.5K
CIAM
431
Caitong International Asset Management
Hong Kong
$80.5K
SCM
432
Sterling Capital Management
North Carolina
$64.8K
OCM
433
Orion Capital Management
California
$64.6K
FWA
434
Flagship Wealth Advisors
Massachusetts
$64.3K
BCV
435
Banque Cantonale Vaudoise
Switzerland
$63K
Optiver Holding
436
Optiver Holding
Netherlands
$51.9K
RS
437
Rakuten Securities
Japan
$51.1K
MIFH
438
Migdal Insurance & Financial Holdings
Israel
$50K
BCWM
439
Bartlett & Co Wealth Management
Ohio
$45.9K
MPWT
440
MassMutual Private Wealth & Trust
Connecticut
$44.7K
IA
441
IFP Advisors
Florida
$42.5K
Twin Tree Management
442
Twin Tree Management
Texas
$41.8K
TWD
443
True Wealth Design
Ohio
$38.4K
SPIA
444
Steward Partners Investment Advisory
New York
$35.3K
CIBC Private Wealth Group
445
CIBC Private Wealth Group
Georgia
$33.1K
PWAM
446
Private Wealth Asset Management
Iowa
$31.2K
UOTTAIMCU
447
University of Texas/Texas AM Investment Management Co (UTIMCO)
Texas
$28.3K
SWM
448
Spire Wealth Management
Virginia
$27.8K
WTC
449
WhitTier Trust Company
Nevada
$27.7K
TCM
450
Tradewinds Capital Management
Washington
$27.2K