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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 53 closing their positions.

New
Increased
Maintained
Reduced
Closed

92% more first-time investments, than exits

New positions opened: 102 | Existing positions closed: 53

40% more call options, than puts

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

8% more funds holding

Funds holding: 512552 (+40)

0.94% more ownership

Funds ownership: 91.78%92.72% (+0.94%)

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
+40
Holders Change %
+7.81%
% of All Funds
6.72%
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
53
Calls
$65.1M
Puts
$46.4M
Net Calls
+$18.7M
Net Calls Change
-$41.3M
Name Holding Trade Value Shares
Change
Change in
Stake
RJA
551
Ross\Johnson & Associates
Minnesota
$92 +$98 +1 New
TPCW
552
TD Private Client Wealth
New York
$92 +$98 +1 New
ACM
553
Analog Century Management
New York
-$65.8M -631,343 Closed
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
554
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
-$20.8M -200,000 Closed
Arrowstreet Capital
555
Arrowstreet Capital
Massachusetts
-$18.1M -173,353 Closed
CCM
556
CloudAlpha Capital Management
Hong Kong
-$17.3M -165,800 Closed
TC
557
Tairen Capital
Hong Kong
-$10.7M -103,073 Closed
LCG
558
Lisanti Capital Growth
New York
-$4.33M -41,532 Closed
Zurich Cantonal Bank
559
Zurich Cantonal Bank
Switzerland
-$3.59M -36,442 Closed
PCM
560
Penserra Capital Management
California
-$3.56M -34,162 Closed
Capital Fund Management (CFM)
561
Capital Fund Management (CFM)
France
-$2.89M -29,371 Closed
Nomura Holdings
562
Nomura Holdings
Japan
-$2.82M -27,046 Closed
JCIA
563
Jackson Creek Investment Advisors
Colorado
-$2.49M -23,920 Closed
IMC Chicago
564
IMC Chicago
Illinois
-$2.01M -20,443 Closed
ZIM
565
Zacks Investment Management
Illinois
-$1.99M -19,110 Closed
CCM
566
Cinctive Capital Management
New York
-$1.7M -16,315 Closed
BBA
567
Baader Bank Aktiengesellschaft
Germany
-$1.15M -11,042 Closed
HSA
568
Hussman Strategic Advisors
Maryland
-$1.09M -10,500 Closed
BPA
569
Beacon Pointe Advisors
California
-$782K -7,500 Closed
XT
570
XTX Topco
Cayman Islands
-$648K -6,221 Closed
NICM
571
Neo Ivy Capital Management
New York
-$601K -5,770 Closed
PCM
572
Polymer Capital Management
New York
-$560K -5,374 Closed
KJHP
573
K.J. Harrison & Partners
Ontario, Canada
-$519K -5,000 Closed
EF
574
Empowered Funds
Pennsylvania
-$464K -4,450 Closed
WI
575
WBI Investments
New Jersey
-$454K -4,356 Closed