Rambus Ownership

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

Recent Insider Transactions

DB:RMB Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
19 Feb 25	Sell€3,419,878	Xianzhi Fan	Individual	52,327	€65.36
19 Feb 25	Sell€296,612	Necip Sayiner	Individual	4,625	€64.13
12 Dec 24	Sell€136,453	John Shinn	Individual	2,462	€55.42
12 Dec 24	Sell€300,182	Meera Rao	Individual	5,408	€55.51

Insider Trading Volume

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

Ownership Breakdown

What is the ownership structure of RMB?
Owner Type	Number of Shares	Ownership Percentage
State or Government	44,078	0.041%
Individual Insiders	737,087	0.686%
General Public	9,756,868	9.08%
Institutions	96,873,883	90.2%

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

Top Shareholders

Top 25 shareholders own 65.34% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
13.2%	BlackRock, Inc.	14,215,901	€653.9m	0.54%	0.01%
11.6%	The Vanguard Group, Inc.	12,442,412	€572.3m	-1.21%	0.01%
5.07%	T. Rowe Price Group, Inc.	5,449,128	€250.7m	443%	0.03%
4.43%	Invesco Ltd.	4,753,954	€218.7m	84.2%	0.06%
4.41%	State Street Global Advisors, Inc.	4,737,415	€217.9m	-1.7%	0.01%
3.46%	JP Morgan Asset Management	3,712,935	€170.8m	-2.09%	0.02%
2.4%	Geode Capital Management, LLC	2,577,185	€118.5m	-1.68%	0.01%
1.66%	Norges Bank Investment Management	1,785,242	€82.1m	38.8%	0.01%
1.61%	Dimensional Fund Advisors LP	1,734,188	€79.8m	-1.54%	0.01%
1.58%	Swedbank Robur Fonder AB	1,700,000	€78.2m	-2.47%	0.06%
1.54%	Neuberger Berman Investment Advisers LLC	1,658,364	€76.3m	-5.09%	0.07%
1.36%	Northern Trust Global Investments	1,463,338	€67.3m	13.2%	0.01%
1.3%	BNY Asset Management	1,400,512	€64.4m	-28.5%	0.02%
1.17%	Charles Schwab Investment Management, Inc.	1,256,346	€57.8m	0.53%	0.01%
1.16%	Wellington Management Group LLP	1,248,445	€57.4m	-14.4%	0.01%
1.15%	Westwood Management Corp.	1,232,210	€56.7m	9.25%	0.49%
1.12%	Congress Asset Management Company, LLP	1,199,564	€55.2m	38.5%	0.44%
1.1%	American Century Investment Management Inc	1,176,352	€54.1m	6.76%	0.03%
1.05%	Voya Investment Management LLC	1,124,441	€51.7m	-5.81%	0.07%
1.01%	Westfield Capital Management Company, L.P.	1,089,081	€50.1m	-21.6%	0.26%
0.91%	Raymond James Financial Inc., Asset Management Arm	974,284	€44.8m	3,310%	0.02%
0.8%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	863,772	€39.7m	0%	0.01%
0.78%	Emerald Advisers, LLC	836,808	€38.5m	-7.1%	1.12%
0.77%	Analog Century Management, LP	825,288	€38.0m	0%	3.17%
0.67%	Eagle Asset Management, Inc.	722,773	€33.2m	0%	0.24%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/05/12 20:53
End of Day Share Price	2025/05/12 00:00
Earnings	2025/03/31
Annual Earnings	2024/12/31

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.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* 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 world class team 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 21 analysts. 7 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Nam Hyung Kim	Arete Research Services LLP
Tristan Gerra	Baird
Gary Mobley	Benchmark Company