Rambus Inc.

NasdaqGS:RMBS Stock Report

Market Cap: US$10.5b

Rambus Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:RMBS Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
07 Aug 26SellUS$504,600Charles KissnerIndividual5,000US$100.92
03 Jun 26SellUS$850,750Necip SayinerIndividual5,000US$170.15
02 Jun 26SellUS$1,605,000Emiko HigashiIndividual10,000US$163.00
01 Jun 26SellUS$730,000Eric StangIndividual5,000US$146.00
26 May 26SellUS$5,751,226Xianzhi FanIndividual37,914US$152.35
26 May 26SellUS$787,851Emiko HigashiIndividual5,000US$157.57
22 May 26SellUS$143,630John ShinnIndividual1,000US$143.63
08 May 26SellUS$1,278,888Necip SayinerIndividual9,824US$130.18
07 May 26SellUS$188,279Steven LaubIndividual1,500US$125.52
10 Mar 26SellUS$404,008John ShinnIndividual4,556US$89.55
10 Nov 25SellUS$958,900Eric StangIndividual9,000US$111.79

Insider Trading Volume

Insider Buying: RMBS insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of RMBS?
Owner TypeNumber of SharesOwnership Percentage
Private Companies50.00000461%
State or Government87,3110.0805%
Individual Insiders768,1940.708%
General Public5,489,3725.06%
Institutions102,116,72194.2%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 64.68% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
12.9%
BlackRock, Inc.
13,964,477US$1.4b-14.4%0.01%
9.18%
FMR LLC
9,956,571US$965.4m201%0.04%
5.6%
Vanguard Portfolio Management, LLC
6,068,516US$588.4m-8.67%0.02%
5.19%
Invesco Ltd.
5,632,068US$546.1m-0.15%0.11%
5.14%
Vanguard Capital Management, LLC
5,573,598US$540.4m-0.07%0.01%
3.61%
State Street Investment Management
3,915,113US$379.6m-10.5%0.01%
3.07%
T. Rowe Price Group, Inc.
3,334,512US$323.3m-42.2%0.02%
2.12%
Geode Capital Management, LLC
2,297,660US$222.8m-26.5%0.01%
1.59%
Dimensional Fund Advisors LP
1,719,400US$166.7m-4.23%0.02%
1.55%
JP Morgan Asset Management
1,676,719US$162.6m0.28%0.01%
1.52%
Swedbank Robur Fonder AB
1,646,500US$159.6m5.34%0.09%
1.41%
Norges Bank Investment Management
1,532,622US$148.6m-9.93%0.01%
1.21%
Neuberger Berman Investment Advisers LLC
1,311,777US$127.2m0.74%0.08%
1.11%
AQR Capital Management, LLC
1,203,984US$116.7m-3.09%0.04%
1.02%
Charles Schwab Investment Management, Inc.
1,109,132US$107.5m-16.4%0.01%
1%
EdgePoint Investment Group Inc.
1,086,213US$105.3m-44.2%0.38%
1%
Bank of America Corporation
1,081,450US$104.9m-3.42%0.02%
0.92%
Invesco Capital Management LLC
1,000,390US$97.0m16.6%0.01%
0.91%
Rafferty Asset Management, LLC
984,388US$95.4m32%0.21%
0.88%
Bessemer Investment Management LLC
958,929US$93.0m-7.79%0.1%
0.88%
Northern Trust Global Investments
949,113US$92.0m-28.9%0.01%
0.75%
BNY Asset Management
808,426US$78.4m5.73%0.01%
0.73%
Manulife Asset Management
797,195US$77.3m678%0.05%
0.72%
Congress Asset Management Company, LLP
777,993US$75.4m-39%0.44%
0.7%
PointState Capital LP
764,172US$74.1m8.96%1.0%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/09/22 21:37
End of Day Share Price 2026/09/22 00:00
Earnings2026/06/30
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Rambus Inc. is covered by 17 analysts. 8 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
James FontanelliArete Research Services LLP
Brett SimpsonArete Research Services LLP
Tristan GerraBaird