Rambus Ownership

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

Recent Insider Transactions

BMV:RMBS * Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
07 Aug 26	SellMex$8,653,638	Charles Kissner	Individual	5,000	Mex$1,730.73
03 Jun 26	SellMex$14,727,418	Necip Sayiner	Individual	5,000	Mex$2,945.48
02 Jun 26	SellMex$27,734,240	Emiko Higashi	Individual	10,000	Mex$2,816.62
01 Jun 26	SellMex$12,681,414	Eric Stang	Individual	5,000	Mex$2,536.28
26 May 26	SellMex$99,701,520	Xianzhi Fan	Individual	37,914	Mex$2,641.09
26 May 26	SellMex$13,657,940	Emiko Higashi	Individual	5,000	Mex$2,731.59
22 May 26	SellMex$2,488,189	John Shinn	Individual	1,000	Mex$2,488.19
08 May 26	SellMex$22,009,412	Necip Sayiner	Individual	9,824	Mex$2,240.37
07 May 26	SellMex$3,243,769	Steven Laub	Individual	1,500	Mex$2,162.51
10 Mar 26	SellMex$7,074,339	John Shinn	Individual	4,556	Mex$1,567.97
10 Nov 25	SellMex$17,642,513	Eric Stang	Individual	9,000	Mex$2,056.70
11 Sep 25	SellMex$11,899,287	Necip Sayiner	Individual	7,500	Mex$1,586.57
29 Aug 25	SellMex$3,319,339	Steven Laub	Individual	2,261	Mex$1,468.08

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 Type	Number of Shares	Ownership Percentage
State or Government	87,311	0.0805%
Individual Insiders	759,901	0.701%
General Public	5,861,976	5.4%
Institutions	101,752,415	93.8%

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

Top Shareholders

Top 25 shareholders own 64.68% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
12.9%	BlackRock, Inc.	13,964,477	Mex$21.6b	-14.4%	0.01%
9.18%	FMR LLC	9,956,571	Mex$15.4b	201%	0.04%
5.6%	Vanguard Portfolio Management, LLC	6,068,516	Mex$9.4b	-8.67%	0.02%
5.19%	Invesco Ltd.	5,632,068	Mex$8.7b	-0.15%	0.12%
5.14%	Vanguard Capital Management, LLC	5,573,598	Mex$8.6b	-0.07%	0.01%
3.61%	State Street Investment Management	3,915,113	Mex$6.0b	-10.5%	0.01%
3.07%	T. Rowe Price Group, Inc.	3,334,512	Mex$5.1b	-42.2%	0.02%
2.12%	Geode Capital Management, LLC	2,297,660	Mex$3.5b	-26.5%	0.01%
1.59%	Dimensional Fund Advisors LP	1,719,400	Mex$2.7b	-4.23%	0.02%
1.55%	JP Morgan Asset Management	1,676,719	Mex$2.6b	0.28%	0.01%
1.52%	Swedbank Robur Fonder AB	1,646,500	Mex$2.5b	5.34%	0.09%
1.41%	Norges Bank Investment Management	1,532,622	Mex$2.4b	-9.93%	0.01%
1.21%	Neuberger Berman Investment Advisers LLC	1,311,777	Mex$2.0b	0.74%	0.08%
1.11%	AQR Capital Management, LLC	1,203,984	Mex$1.9b	-3.09%	0.04%
1.02%	Charles Schwab Investment Management, Inc.	1,109,132	Mex$1.7b	-16.4%	0.01%
1%	EdgePoint Investment Group Inc.	1,086,213	Mex$1.7b	-44.2%	0.4%
1%	Bank of America Corporation	1,081,450	Mex$1.7b	-3.42%	0.02%
0.92%	Invesco Capital Management LLC	1,000,390	Mex$1.5b	16.6%	0.01%
0.91%	Rafferty Asset Management, LLC	984,388	Mex$1.5b	32%	0.22%
0.88%	Bessemer Investment Management LLC	958,929	Mex$1.5b	-7.79%	0.1%
0.88%	Northern Trust Global Investments	949,113	Mex$1.5b	-28.9%	0.01%
0.75%	BNY Asset Management	808,426	Mex$1.2b	5.73%	0.01%
0.73%	Manulife Asset Management	797,195	Mex$1.2b	678%	0.05%
0.72%	Congress Asset Management Company, LLP	777,993	Mex$1.2b	-39%	0.44%
0.7%	PointState Capital LP	764,172	Mex$1.2b	8.96%	1.21%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/08/23 10:09
End of Day Share Price	2026/08/04 00:00
Earnings	2026/06/30
Annual Earnings	2025/12/31

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 17 analysts. 9 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
Brett Simpson	Arete Research Services LLP
James Fontanelli	Arete Research Services LLP
Tristan Gerra	Baird