We are live on ! Find out more

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
M&T Bank
326
M&T Bank
New York
$481K +$26.8K +272 +5%
William Blair & Company
327
William Blair & Company
Illinois
$465K +$15.3K +155 +3%
AGAM
328
AK Global Asset Management
California
$459K +$492K +5,000 New
RT
329
Rockland Trust
Massachusetts
$459K
AHL
330
Abel Hall LLC
Louisiana
$459K +$491K +4,994 New
Commonwealth Equity Services
331
Commonwealth Equity Services
Massachusetts
$450K -$773K -7,852 -62%
Nisa Investment Advisors
332
Nisa Investment Advisors
Missouri
$449K -$2.66K -27 -0.5%
Vontobel Holding
333
Vontobel Holding
Switzerland
$448K -$61.4K -624 -11%
TFGT
334
TS Financial Group (TSFG)
Illinois
$446K +$4.92K +50 +1%
GI
335
GAMMA Investing
California
$444K +$15.1K +153 +3%
Bank Julius Baer & Co
336
Bank Julius Baer & Co
Switzerland
$423K +$56.3K +572 +14%
MFG
337
Merit Financial Group
Georgia
$421K +$51.8K +526 +13%
CAM
338
Cresset Asset Management
Illinois
$412K +$57.8K +587 +15%
CA
339
CoreCap Advisors
Michigan
$401K -$32.5K -330 -7%
FPAS
340
Focus Partners Advisor Solutions
Missouri
$384K -$136K -1,383 -25%
LFG
341
Larson Financial Group
Missouri
$379K -$15.3K -155 -4%
Verition Fund Management
342
Verition Fund Management
Connecticut
$376K -$227K -2,306 -36%
FFM
343
Forum Financial Management
Illinois
$358K
Simplex Trading
344
Simplex Trading
Illinois
$357K +$382K +3,884 New
MAS
345
Meeder Advisory Services
Ohio
$357K +$11.2K +114 +3%
BIG
346
Brooklyn Investment Group
New York
$354K +$372K +3,785 New
SCA
347
Snowden Capital Advisors
New York
$353K +$182K +1,849 +93%
ORI
348
Oak Ridge Investments
Illinois
$352K +$178K +1,805 +89%
KeyBank National Association
349
KeyBank National Association
Ohio
$350K -$89.4K -909 -19%
CFO
350
Callan Family Office
Pennsylvania
$341K +$165K +1,676 +82%