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552 hedge funds and large institutions have $9.18B invested in Rambus in 2025 Q4 according to their latest regulatory filings, with 102 funds opening new positions, 190 increasing their positions, 194 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

89% more first-time investments, than exits

New positions opened: 102 | Existing positions closed: 54

40% more call options, than puts

Call options by funds: $65.1M | Put options by funds: $46.4M

8% more funds holding

Funds holding: 513552 (+39)

0.93% more ownership

Funds ownership: 91.78%92.72% (+0.93%)

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
552
Holders Change
+39
Holders Change %
+7.6%
% of All Funds
6.71%
Holding in Top 10
3
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-50%
% of All Funds
0.04%
New
102
Increased
190
Reduced
194
Closed
54
Calls
$65.1M
Puts
$46.4M
Net Calls
+$18.7M
Net Calls Change
-$41.3M
Name Holding Trade Value Shares
Change
Change in
Stake
BC
426
Bayforest Capital
United Kingdom
$117K -$428K -4,348 -77%
UB
427
UMB Bank
Missouri
$116K +$6.2K +63 +5%
SOW
428
State of Wyoming
Wyoming
$101K +$26.1K +265 +32%
MCM
429
MAI Capital Management
Ohio
$98.7K -$13.6K -138 -11%
KAS
430
Kemnay Advisory Services
New York
$98.5K +$105K +1,072 New
CIAM
431
Caitong International Asset Management
Hong Kong
$80.5K +$86.2K +876 New
SCM
432
Sterling Capital Management
North Carolina
$64.8K +$43.6K +443 +169%
OCM
433
Orion Capital Management
California
$64.6K
FWA
434
Flagship Wealth Advisors
Massachusetts
$64.3K
BCV
435
Banque Cantonale Vaudoise
Switzerland
$63K +$19.5K +198 +40%
Optiver Holding
436
Optiver Holding
Netherlands
$51.9K -$18K -183 -24%
RS
437
Rakuten Securities
Japan
$51.1K -$68K -691 -55%
MIFH
438
Migdal Insurance & Financial Holdings
Israel
$50K +$53.9K +548 New
BCWM
439
Bartlett & Co Wealth Management
Ohio
$45.9K
MPWT
440
MassMutual Private Wealth & Trust
Connecticut
$44.7K -$492 -5 -1%
IA
441
IFP Advisors
Florida
$42.5K +$1.57K +16 +4%
Twin Tree Management
442
Twin Tree Management
Texas
$41.8K -$509K -5,169 -92%
TWD
443
True Wealth Design
Ohio
$38.4K -$197 -2 -0.5%
SPIA
444
Steward Partners Investment Advisory
New York
$35.3K +$4.04K +41 +12%
CIBC Private Wealth Group
445
CIBC Private Wealth Group
Georgia
$33.1K -$14.3K -145 -29%
PWAM
446
Private Wealth Asset Management
Iowa
$31.2K
UOTTAIMCU
447
University of Texas/Texas AM Investment Management Co (UTIMCO)
Texas
$28.3K +$30.3K +308 New
SWM
448
Spire Wealth Management
Virginia
$27.8K +$19.8K +201 +199%
WTC
449
WhitTier Trust Company
Nevada
$27.7K -$787 -8 -3%
TCM
450
Tradewinds Capital Management
Washington
$27.2K