InsiderTrades.com logo

RMBS Insider Trading

Insider Ownership Percentage: 0.75%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $19,453,673.23

Rambus Insider Trading History Chart

This chart shows the insider buying and selling history at Rambus by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Rambus Share Price & Price History

Current Price: $141.17
Price Change: +0.30 (1.20%)
As of 06/18/2026 04:00 PM ET

This chart shows the closing price history over time for RMBS up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Rambus Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/3/2026Necip SayinerDirectorSell5,000$170.15$850,750.0018,223View SEC Filing Icon  
6/2/2026Emiko HigashiDirectorSell10,000$160.50$1,605,000.0049,519View SEC Filing Icon  
6/1/2026Eric B. StangDirectorSell5,000$146.00$730,000.0019,218View SEC Filing Icon  
5/26/2026Emiko HigashiDirectorSell5,000$157.57$787,850.0059,519View SEC Filing Icon  
5/26/2026Xianzhi Sean FanEVPSell37,914$151.69$5,751,174.66168,358View SEC Filing Icon  
4/24/2026Meera RaoDirectorSell2,972$150.30$446,691.6019,974View SEC Filing Icon  
4/14/2026Meera RaoDirectorSell8,538$118.08$1,008,167.0422,946View SEC Filing Icon  
4/2/2026Luc SeraphinCEOSell5,426$86.65$470,162.90345,767View SEC Filing Icon  
3/2/2026Luc SeraphinCEOSell39,914$98.63$3,936,717.82331,070View SEC Filing Icon  
2/23/2026Desmond LynchCFOSell4,273$101.53$433,837.6963,618View SEC Filing Icon  
11/10/2025Eric B. StangDirectorSell4,000$111.78$447,120.0020,394View SEC Filing Icon  
11/7/2025Eric B. StangDirectorSell5,000$102.35$511,750.0024,394View SEC Filing Icon  
10/1/2025Meera RaoDirectorSell653$101.99$66,599.4729,261View SEC Filing Icon  
9/15/2025Desmond LynchCFOSell9,074$91.70$832,085.8064,430View SEC Filing Icon  
9/11/2025Necip SayinerDirectorSell7,500$85.63$642,225.0030,824View SEC Filing Icon  
9/2/2025Meera RaoDirectorSell3,000$71.72$215,160.0029,914View SEC Filing Icon  
8/13/2025Emiko HigashiDirectorSell1,075$77.75$83,581.2562,296View SEC Filing Icon  
8/8/2025Necip SayinerDirectorSell7,500$73.53$551,475.0038,324View SEC Filing Icon  
8/4/2025Emiko HigashiDirectorSell1,111$75.00$83,325.0063,371View SEC Filing Icon  
5/27/2025Steven LaubDirectorSell1,847$55.12$101,806.649,057View SEC Filing Icon  
5/19/2025Steven LaubDirectorSell3,653$55.56$202,960.6810,904View SEC Filing Icon  
4/23/2025Luc SeraphinCEOSell6,348$46.97$298,165.56319,241View SEC Filing Icon  
4/15/2025Luc SeraphinCEOSell10,000$47.79$477,900.00326,844View SEC Filing Icon  
4/8/2025Luc SeraphinCEOSell10,000$46.81$468,100.00336,844View SEC Filing Icon  
4/1/2025Luc SeraphinCEOSell10,000$50.88$508,800.00346,844View SEC Filing Icon  
3/25/2025Luc SeraphinCEOSell10,000$58.64$586,400.00306,931View SEC Filing Icon  
3/18/2025Luc SeraphinCEOSell10,000$53.79$537,900.00316,931View SEC Filing Icon  
2/19/2025Necip SayinerDirectorSell4,625$66.74$308,672.5042,000View SEC Filing Icon  
2/19/2025Xianzhi Sean FanCOOSell52,327$68.02$3,559,282.5493,841View SEC Filing Icon  
12/12/2024Meera RaoDirectorSell5,408$58.22$314,853.7629,090View SEC Filing Icon  
5/7/2024Eric B. StangDirectorSell5,408$56.95$307,985.6032,422View SEC Filing Icon  
4/16/2024Luc SeraphinCEOSell5,530$58.66$324,389.80262,791View SEC Filing Icon  
4/9/2024Luc SeraphinCEOSell15,000$61.35$920,250.00268,321View SEC Filing Icon  
4/2/2024Luc SeraphinCEOSell15,000$59.93$898,950.00283,321View SEC Filing Icon  
3/26/2024John ShinnSVPSell3,947$62.71$247,516.3716,663View SEC Filing Icon  
3/26/2024Luc SeraphinCEOSell15,000$62.69$940,350.00259,755View SEC Filing Icon  
3/19/2024John ShinnSVPSell3,949$58.84$232,359.1620,610View SEC Filing Icon  
3/19/2024Luc SeraphinCEOSell15,000$58.35$875,250.00274,755View SEC Filing Icon  
3/12/2024John ShinnSVPSell3,889$62.68$243,762.5224,559View SEC Filing Icon  
3/12/2024Luc SeraphinCEOSell15,000$62.69$940,350.00289,755View SEC Filing Icon  
3/11/2024Desmond LynchCFOSell7,837$62.18$487,304.6641,958View SEC Filing Icon  
3/7/2024John ShinnSVPSell3,928$64.93$255,045.0428,448View SEC Filing Icon  
3/5/2024Luc SeraphinCEOSell15,000$62.17$932,550.00304,755View SEC Filing Icon  
2/20/2024Xianzhi Sean FanCOOSell2,004$55.00$110,220.00121,229View SEC Filing Icon  
12/11/2023Xianzhi Sean FanCOOSell16,904$66.35$1,121,580.40151,319View SEC Filing Icon  
12/7/2023Desmond LynchCFOSell1,527$64.64$98,705.2864,198View SEC Filing Icon  
11/15/2023Steven LaubDirectorSell2,000$66.91$133,820.007,761View SEC Filing Icon  
11/8/2023Emiko HigashiDirectorSell8,000$60.00$480,000.0057,686View SEC Filing Icon  
11/6/2023Necip SayinerDirectorSell10,000$57.43$574,300.0028,653View SEC Filing Icon  
8/29/2023Xianzhi Sean FanCOOSell17,309$54.99$951,821.91168,223View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Rambus (NASDAQ:RMBS)

88.54% of Rambus stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at RMBS by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Rambus Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
6/18/2026Pacer Advisors Inc.37,001$3.18M0.0%+80.9%0.034%Search for SEC Filing on Google Icon
6/16/2026Empowered Funds LLC8,443$0.73M0.0%-8.0%0.008%Search for SEC Filing on Google Icon
6/3/2026Parallel Advisors LLC2,252$0.19M0.0%-10.0%0.002%Search for SEC Filing on Google Icon
6/3/2026NewEdge Advisors LLC1,070$92K0.0%-45.3%0.001%Search for SEC Filing on Google Icon
6/2/2026Optiver Holding B.V.480$41K0.0%-15.0%0.000%Search for SEC Filing on Google Icon
5/26/2026Glenmede Trust Co. NA159,131$13.69M0.1%-7.8%0.147%Search for SEC Filing on Google Icon
5/22/2026Segall Bryant & Hamill LLC157,450$13.55M0.2%+45.2%0.146%Search for SEC Filing on Google Icon
5/21/2026Argent Capital Management LLC10,001$0.86M0.0%+56.2%0.009%Search for SEC Filing on Google Icon
5/19/2026Western Wealth Management LLC509$44K0.0%N/A0.000%Search for SEC Filing on Google Icon
5/19/2026Cim Investment Management Inc.4,072$0.35M0.1%N/A0.004%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE1,361,570$117.14M0.0%+9.0%1.259%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC358,892$30.88M0.0%-5.4%0.332%Search for SEC Filing on Google Icon
5/18/2026Amundi16,384$1.41M0.0%+32.4%0.015%Search for SEC Filing on Google Icon
5/18/2026Gould Capital LLC15,760$1.36M0.8%-14.3%0.015%Search for SEC Filing on Google Icon
5/18/2026EverSource Wealth Advisors LLC2,188$0.19M0.0%+14.8%0.002%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System124,195$10.68M0.0%+22.9%0.115%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada29,542$2.54M0.0%-13.1%0.027%Search for SEC Filing on Google Icon
5/18/2026Ranger Investment Management L.P.224,365$19.30M1.4%+135.0%0.207%Search for SEC Filing on Google Icon
5/18/2026EdgePoint Investment Group Inc.1,947,742$167.56M1.3%+38.5%1.801%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC8,443$0.73M0.0%-8.0%0.008%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company 102,403$8.81M0.0%-10.2%0.095%Search for SEC Filing on Google Icon
5/16/2026Maverick Capital Ltd.13,028$1.12M0.0%N/A0.012%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP25,621$2.20M0.0%+9.5%0.024%Search for SEC Filing on Google Icon
5/16/2026SummitTX Capital L.P.80,674$6.94M0.2%-17.1%0.075%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC101,701$8.75M0.0%-65.9%0.094%Search for SEC Filing on Google Icon
5/15/2026Weiss Asset Management LP63,100$5.43M0.1%+73.8%0.058%Search for SEC Filing on Google Icon
5/15/2026Rice Hall James & Associates LLC37,059$3.19M0.2%-17.5%0.034%Search for SEC Filing on Google Icon
5/15/2026Granahan Investment Management LLC280,246$24.11M1.2%+5.5%0.259%Search for SEC Filing on Google Icon
5/14/2026Public Employees Retirement System of Ohio2,185$0.19M0.0%-23.9%0.002%Search for SEC Filing on Google Icon
5/14/2026Keebeck Wealth Management7,439$0.64M0.1%-4.4%0.007%Search for SEC Filing on Google Icon
5/14/2026Inceptionr LLC4,351$0.37M0.1%-25.2%0.004%Search for SEC Filing on Google Icon
5/14/2026Gibbs Wealth Management18,234$1.57M0.2%+64.1%0.017%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.339,931$29.24M0.0%-12.1%0.314%Search for SEC Filing on Google Icon
5/14/2026Lido Advisors LLC6,242$0.54M0.0%-1.6%0.006%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming657$57K0.0%-40.3%0.001%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers28,692$2.47M0.0%+1.1%0.027%Search for SEC Filing on Google Icon
5/13/2026First Citizens Bank & Trust Co.14,736$1.27M0.0%-0.5%0.014%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP307,244$26.43M0.0%+2.4%0.284%Search for SEC Filing on Google Icon
5/12/2026Chase Investment Counsel Corp3,018$0.26M0.1%N/A0.003%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.12,328$1.06M0.0%-4.9%0.011%Search for SEC Filing on Google Icon
5/7/2026Meeder Advisory Services Inc.3,639$0.31M0.0%-6.3%0.003%Search for SEC Filing on Google Icon
5/7/2026WCM Investment Management LLC165,018$13.16M0.0%-4.3%0.153%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP1,795,295$154.42M0.0%-5.2%1.660%Search for SEC Filing on Google Icon
5/7/2026Balefire LLC2,932$0.25M0.0%+3.8%0.003%Search for SEC Filing on Google Icon
5/7/2026Parallel Advisors LLC2,252$0.19M0.0%-10.0%0.002%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank213,000$18.32M0.0%+0.4%0.197%Search for SEC Filing on Google Icon
5/6/2026Jennison Associates LLC6,739$0.58M0.0%-43.7%0.006%Search for SEC Filing on Google Icon
5/6/2026Aurora Investment Counsel10,883$0.94M0.5%-43.3%0.010%Search for SEC Filing on Google Icon
5/6/2026California Public Employees Retirement System227,271$19.55M0.0%+15.8%0.210%Search for SEC Filing on Google Icon
5/6/2026Future Fund LLC34,386$2.96M1.0%N/A0.032%Search for SEC Filing on Google Icon
5/6/2026Assetmark Inc.147,554$12.69M0.0%+33.2%0.136%Search for SEC Filing on Google Icon
5/6/2026Financiere des Professionnels Fonds d investissement inc.2,299$0.20M0.0%-68.6%0.002%Search for SEC Filing on Google Icon
5/6/2026Bessemer Group Inc.1,039,905$89.46M0.1%+1,009.5%0.962%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC66,531$5.98M0.0%-87.3%0.062%Search for SEC Filing on Google Icon
5/6/2026Independent Financial Group LLC6,525$0.56M0.0%N/A0.006%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp779,878$67.09M0.0%-28.7%0.721%Search for SEC Filing on Google Icon
5/5/2026Illinois Municipal Retirement Fund27,314$2.35M0.0%+12.2%0.025%Search for SEC Filing on Google Icon
5/5/2026Sanctuary Advisors LLC7,407$0.64M0.0%-2.0%0.007%Search for SEC Filing on Google Icon
5/4/2026Emerald Mutual Fund Advisers Trust307,248$26.43M1.3%-21.5%0.284%Search for SEC Filing on Google Icon
5/4/2026Emerald Advisers LLC493,236$42.43M1.3%-21.3%0.456%Search for SEC Filing on Google Icon
5/4/2026Empirical Financial Services LLC d.b.a. Empirical Wealth Management9,346$0.80M0.0%+22.6%0.009%Search for SEC Filing on Google Icon
5/4/2026State of Michigan Retirement System25,900$2.23M0.0%+2.0%0.024%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.373,536$32.14M0.0%-9.3%0.345%Search for SEC Filing on Google Icon
5/4/2026Schwartz Investment Counsel Inc.420,337$36.16M1.3%+133.1%0.389%Search for SEC Filing on Google Icon
5/4/2026Teachers Retirement System of The State of Kentucky49,124$4.23M0.0%-0.5%0.045%Search for SEC Filing on Google Icon
5/2/2026Diversify Wealth Management LLC31,253$2.69M0.0%+75.7%0.029%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp27,361$2.35M0.0%+1,675.5%0.025%Search for SEC Filing on Google Icon
5/1/2026Sequoia Financial Advisors LLC7,878$0.68M0.0%+4.6%0.007%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC6,329$0.54M0.0%-69.0%0.006%Search for SEC Filing on Google Icon
4/30/2026Summit Securities Group LLC800$69K0.0%N/A0.001%Search for SEC Filing on Google Icon
4/30/2026Azzad Asset Management Inc. ADV16,221$1.40M0.1%-32.9%0.015%Search for SEC Filing on Google Icon
4/30/2026Sumitomo Mitsui Trust Group Inc.7,252$0.62M0.0%-2.8%0.007%Search for SEC Filing on Google Icon
4/30/2026Capstone Capital Management Ltd23,326$2.01M2.0%N/A0.022%Search for SEC Filing on Google Icon
4/30/2026Oregon Public Employees Retirement Fund22,069$1.90M0.0%+2.6%0.020%Search for SEC Filing on Google Icon
4/29/2026KERR FINANCIAL PLANNING Corp6,050$0.52M0.7%-23.9%0.006%Search for SEC Filing on Google Icon
4/29/2026Resonant Capital Advisors LLC3,819$0.33M0.0%N/A0.004%Search for SEC Filing on Google Icon
4/29/2026Swedbank AB1,563,000$134.47M0.1%+14.7%1.445%Search for SEC Filing on Google Icon
4/28/2026Abel Hall LLC3,486$0.30M0.1%-30.2%0.003%Search for SEC Filing on Google Icon
4/28/2026Stephens Inc. AR32,981$2.84M0.0%+10.2%0.030%Search for SEC Filing on Google Icon
4/28/2026Stephens Investment Management Group LLC407,783$35.08M0.5%+110.5%0.377%Search for SEC Filing on Google Icon
4/28/2026Praxis Investment Management Inc.3,003$0.26M0.0%+15.9%0.003%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System73,322$6.31M0.0%-4.7%0.068%Search for SEC Filing on Google Icon
4/27/2026Private Advisor Group LLC7,735$0.67M0.0%-9.2%0.007%Search for SEC Filing on Google Icon
4/27/2026Y Intercept Hong Kong Ltd36,901$3.18M0.1%+25.3%0.034%Search for SEC Filing on Google Icon
4/27/2026Leonteq Securities AG6,749$0.58M0.0%+20,351.5%0.006%Search for SEC Filing on Google Icon
4/25/2026Strs Ohio24,300$2.09M0.0%-1.2%0.022%Search for SEC Filing on Google Icon
4/25/2026Keybank National Association OH2,999$0.26M0.0%-21.2%0.003%Search for SEC Filing on Google Icon
4/24/2026Element Squared LLC23,567$2.03M1.1%N/A0.022%Search for SEC Filing on Google Icon
4/23/2026AMI Asset Management Corp2,950$0.25M0.0%N/A0.003%Search for SEC Filing on Google Icon
4/22/2026MeadowBrook Investment Advisors LLC2,365$0.20M0.2%+9.5%0.002%Search for SEC Filing on Google Icon
4/22/2026Janney Montgomery Scott LLC110,607$9.52M0.0%-9.8%0.102%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA43,583$3.75M0.0%+6.9%0.040%Search for SEC Filing on Google Icon
4/22/2026Ground Swell Capital LLC3,613$0.31M0.6%N/A0.003%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System31,200$2.68M0.0%N/A0.029%Search for SEC Filing on Google Icon
4/20/2026Kestra Private Wealth Services LLC6,423$0.55M0.0%-4.1%0.006%Search for SEC Filing on Google Icon
4/20/2026Blue Trust Inc.1,015$87K0.0%-29.4%0.001%Search for SEC Filing on Google Icon
4/20/2026Fifth Third Wealth Advisors LLC3,455$0.30M0.0%+4.6%0.003%Search for SEC Filing on Google Icon
4/20/2026OP Asset Management Ltd1,468$0.13M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/20/2026Assenagon Asset Management S.A.47,531$4.09M0.0%+2.5%0.044%Search for SEC Filing on Google Icon
4/17/2026Krilogy Financial LLC2,238$0.19M0.0%+3.8%0.002%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Rambus logo
Rambus Inc. provides semiconductor products in the United States, South Korea, Singapore, and internationally. The company offers DDR memory interface chips, including DDR5 and DDR4 memory interface chips to module manufacturers, OEMs, and hyperscalers; silicon IP, such as interface and security IP solutions that move and protect data in advanced data center, government, and automotive applications; and interface IP solutions for high-speed memory and chip-to-chip digital controller IP. It also provides a portfolios of security IP solutions, including crypto cores, hardware roots of trust, high-speed protocol engines, and chip provisioning technologies; and portfolio of patents that covers memory architecture, high-speed serial links, and security products. It markets its products and services through its direct sales force and distributors. Rambus Inc. was incorporated in 1990 and is headquartered in San Jose, California.
Read More on Rambus

Today's Range

Now: $141.17
Low: $134.50
High: $143.01

50 Day Range

MA: $135.34
Low: $105.58
High: $170.66

52 Week Range

Now: $141.17
Low: $58.82
High: $174.10

Volume

4,322,751 shs

Average Volume

2,597,805 shs

Market Capitalization

$15.27 billion

P/E Ratio

67.22

Dividend Yield

N/A

Beta

1.84

Who are the company insiders with the largest holdings of Rambus?

Rambus' top insider investors include:
  1. Ronald D Black (CEO)
  2. Luc Seraphin (CEO)
  3. Luc Seraphin (Insider)
  4. Satish Rishi (SVP)
  5. Satish Rishi (CFO)
  6. Laura Stark (SVP)
  7. Xianzhi Sean Fan (COO)
  8. Xianzhi Sean Fan (EVP)
  9. Jae Kim (SVP)
  10. Desmond Lynch (CFO)
Learn More about top insider investors at Rambus.

Who are the major institutional investors of Rambus?

Rambus' top institutional shareholders include:
  1. EdgePoint Investment Group Inc. — 1.80%
  2. Dimensional Fund Advisors LP — 1.66%
  3. Swedbank AB — 1.45%
  4. Bank of America Corp DE — 1.26%
  5. Bessemer Group Inc. — 0.96%
  6. Bank of New York Mellon Corp — 0.72%
Learn More about top institutional investors of Rambus stock.

Which major investors are selling Rambus stock?

In the previous quarter, RMBS stock was sold by these institutional investors:
  1. Allspring Global Investments Holdings LLC
  2. Bank of New York Mellon Corp
  3. Lazard Asset Management LLC
  4. Emerald Advisers LLC
  5. Dimensional Fund Advisors LP
  6. Emerald Mutual Fund Advisers Trust
  7. Sei Investments Co.
  8. Principal Financial Group Inc.
During the previous year, company insiders that have sold Rambus company stock include:
  1. Luc Seraphin (CEO)
  2. Xianzhi Sean Fan (EVP)
  3. Desmond Lynch (CFO)
  4. Emiko Higashi (Director)
  5. Necip Sayiner (Director)
  6. Meera Rao (Director)
  7. Eric B Stang (Director)
Learn More investors selling Rambus stock.

Which major investors are buying Rambus stock?

In the previous quarter, RMBS stock was acquired by institutional investors including:
  1. Bessemer Group Inc.
  2. EdgePoint Investment Group Inc.
  3. Schwartz Investment Counsel Inc.
  4. Stephens Investment Management Group LLC
  5. Swedbank AB
  6. Ranger Investment Management L.P.
  7. Bank of America Corp DE
  8. Segall Bryant & Hamill LLC

Rambus Active Insiders

Luc Seraphin
Luc Seraphin (Age 62)
CEO
2 recent trades
Xianzhi Sean Fan
Xianzhi Sean Fan (Age 60)
COO
1 recent trades
Desmond Lynch
Desmond Lynch (Age 46)
CFO
1 recent trades
Charles Kissner
Charles Kissner
Director
Necip Sayiner
Necip Sayiner
Director
1 recent trades
Eric B Stang
Eric B Stang
Director
1 recent trades
Emiko Higashi
Emiko Higashi
Director
2 recent trades
Steven Laub
Director
Meera Rao
Meera Rao
Director
2 recent trades
John Shinn
John Shinn (Age 57)
SVP
Keith A Jones
Keith A Jones (Age 56)
Insider