RAMBUS INC

RMBSNASDAQ

$110.30-1.67 (-1.49% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

RAMBUS INC price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+9.2%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	12.88%	$1.85B	0.03%	Not reported
FMR LLC	9.64%	$1.39B	0.06%	Not reported
Invesco Ltd.	6.12%	$880M	0.07%	Not reported
Vanguard Portfolio Management LLC	5.60%	$806M	0.04%	Not reported
Vanguard Capital Management LLC	4.49%	$647M	0.01%	Not reported
State Street Corp	3.61%	$519M	0.02%	Not reported
Geode Capital Management, LLC	2.12%	$305M	0.02%	Not reported
JPMorgan Chase & Co	1.94%	$261M	0.01%	Not reported
Dimensional Fund Advisors LP	1.59%	$228M	0.04%	Not reported
Swedbank AB	1.52%	$219M	0.19%	Add 5.34%
Norges Bank	1.41%	$203M	0.02%	Not reported
Morgan Stanley	1.33%	$192M	0.01%	Not reported
Neuberger Berman Group LLC	1.21%	$173M	0.12%	Not reported
Bank of America Corp	1.12%	$162M	0.01%	Not reported
AQR Capital Management LLC	1.12%	$152M	0.05%	Not reported
Charles Schwab Investment Management Inc	1.02%	$147M	0.02%	Not reported
EdgePoint Investment Group Inc.	1.00%	$144M	1.09%	Reduce 44.23%
Rafferty Asset Management, LLC	0.91%	$131M	0.30%	Add 32.04%
Goldman Sachs Group Inc	0.89%	$128M	0.01%	Not reported
Bessemer Group Inc	0.88%	$127M	0.18%	Reduce 7.79%
Northern Trust Corp	0.88%	$126M	0.01%	Not reported
Bank of New York Mellon Corp	0.76%	$110M	0.02%	Not reported
Manufacturers Life Insurance Company, the	0.74%	$106M	0.08%	Not reported
Congress Asset Management Co	0.72%	$103M	0.64%	Reduce 39.03%
PointState Capital LP	0.70%	$101M	1.30%	Add 8.96%
D. E. Shaw & Co., Inc.	0.68%	$98.2M	0.05%	Not reported
Fisher Asset Management, LLC	0.65%	$93.7M	0.03%	Reduce 4.40%
Vanguard Fiduciary Trust Co	0.64%	$92.8M	0.02%	Not reported
Barclays PLC	0.60%	$85.7M	0.02%	Not reported
Raymond James Financial Inc	0.56%	$80.2M	0.02%	Not reported
Clearbridge Investments, LLC	0.54%	$78.3M	0.06%	Not reported
Susquehanna International Group, LLP	0.51%	$73.8M	0.01%	Not reported
Citigroup Inc	0.49%	$70.7M	0.02%	Not reported
Oberweis Asset Management Inc/	0.49%	$70M	1.45%	Add 0.13%
Nuveen, LLC	0.46%	$65.9M	0.02%	Not reported
Millennium Management LLC	0.44%	$62.8M	0.02%	Not reported
Loomis Sayles & Co L P	0.43%	$62.5M	0.08%	Reduce 28.63%
Principal Financial Group Inc	0.40%	$57.1M	0.03%	Not reported
Wellington Management Group LLP	0.39%	$55.6M	0.01%	Reduce 51.14%
Stephens Investment Management Group LLC	0.38%	$54.3M	0.58%	Add 0.41%
Nykredit A/S	0.38%	$54M	0.17%	Not reported
Citadel Advisors LLC	0.37%	$53.1M	0.01%	Not reported
Westfield Capital Management Co LP	0.36%	$51.2M	0.17%	Add 2572.56%
UBS Group AG	0.34%	$49.6M	0.01%	Not reported
Maple Rock Capital Partners Inc.	0.32%	$45.5M	0.89%	New Not reported
Canada Pension Plan Investment Board	0.30%	$43.9M	0.02%	Add 65.78%
Ameriprise Financial Inc	0.30%	$42.6M	0.01%	Not reported
Champlain Investment Partners, LLC	0.28%	$39.7M	1.02%	Reduce 16.20%
Rhumbline Advisers	0.27%	$39.4M	0.03%	Not reported
Shannon River Fund Management LLC	0.27%	$38.7M	3.46%	Reduce 12.61%

50 of 580 holders

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