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RMBS Insider Trading

Insider Ownership Percentage: 1.00%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $10,483,309.44

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: $98.10
Price Change: ▼ Price Decrease of -2.75 (-2.73%)
As of 02/5/2026 05:00 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
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  
5/15/2023Luc SeraphinCEOSell4,556$49.39$225,020.84255,332View SEC Filing Icon  
5/8/2023Luc SeraphinCEOSell12,500$47.98$599,750.00255,414View SEC Filing Icon  
5/1/2023Luc SeraphinCEOSell12,500$44.83$560,375.00267,914View SEC Filing Icon  
4/24/2023Luc SeraphinCEOSell12,500$49.41$617,625.00279,653View SEC Filing Icon  
4/17/2023Luc SeraphinCEOSell12,500$49.58$619,750.00292,153View SEC Filing Icon  
4/10/2023Luc SeraphinCEOSell12,500$48.68$608,500.00304,653View SEC Filing Icon  
4/3/2023Luc SeraphinCEOSell12,500$51.28$641,000.00317,153View SEC Filing Icon  
3/27/2023Luc SeraphinCEOSell12,500$44.99$562,375.00329,653View SEC Filing Icon  
3/20/2023Luc SeraphinCEOSell12,500$44.20$552,500.00342,153View SEC Filing Icon  
3/13/2023Luc SeraphinCEOSell12,500$41.06$513,250.00354,653View SEC Filing Icon  
2/13/2023Eric B. StangDirectorSell6,000$45.46$272,760.0027,180View SEC Filing Icon  
2/10/2023Necip SayinerDirectorSell2,873$45.53$130,807.6925,000View 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
2/5/2026Abacus Wealth Partners LLC2,210$0.20M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/5/2026Stephens Investment Management Group LLC193,702$17.80M0.2%+0.2%0.180%Search for SEC Filing on Google Icon
2/5/2026Stephens Inc. AR29,936$2.75M0.0%-17.2%0.028%Search for SEC Filing on Google Icon
2/5/2026AMJ Financial Wealth Management94,946$8.73M2.1%+252.0%0.088%Search for SEC Filing on Google Icon
2/5/2026Northwestern Mutual Investment Management Company LLC24,085$2.21M0.0%+0.4%0.022%Search for SEC Filing on Google Icon
2/5/2026Northwestern Mutual Wealth Management Co.17,946$1.65M0.0%+289.2%0.017%Search for SEC Filing on Google Icon
2/5/2026Thrivent Financial for Lutherans94,495$8.68M0.0%+282.3%0.088%Search for SEC Filing on Google Icon
2/5/2026New York Life Investment Management LLC10,020$0.92M0.0%N/A0.009%Search for SEC Filing on Google Icon
2/5/2026Bank Julius Baer & Co. Ltd Zurich4,598$0.42M0.0%+14.2%0.004%Search for SEC Filing on Google Icon
2/5/2026Allworth Financial LP1,440$0.13M0.0%-10.1%0.001%Search for SEC Filing on Google Icon
2/4/2026Oregon Public Employees Retirement Fund21,516$1.98M0.0%-0.9%0.020%Search for SEC Filing on Google Icon
2/4/2026VIRGINIA RETIREMENT SYSTEMS ET Al14,710$1.35M0.0%+21.0%0.014%Search for SEC Filing on Google Icon
2/4/2026Schwartz Investment Counsel Inc.180,337$16.57M0.6%-21.7%0.168%Search for SEC Filing on Google Icon
2/4/2026Swiss Life Asset Management Ltd7,823$0.72M0.0%+60.1%0.007%Search for SEC Filing on Google Icon
2/4/2026Securian Asset Management Inc.7,821$0.72M0.0%-2.9%0.007%Search for SEC Filing on Google Icon
2/3/2026F m Investments LLC26,710$2.45M0.1%N/A0.025%Search for SEC Filing on Google Icon
2/3/2026Ethic Inc.3,510$0.32M0.0%+11.4%0.003%Search for SEC Filing on Google Icon
2/3/2026Wesbanco Bank Inc.14,300$1.31M0.0%-37.3%0.013%Search for SEC Filing on Google Icon
2/3/2026Diversify Wealth Management LLC17,783$1.70M0.1%+6.1%0.017%Search for SEC Filing on Google Icon
2/3/2026Sequoia Financial Advisors LLC7,534$0.69M0.0%+33.2%0.007%Search for SEC Filing on Google Icon
2/3/2026Encompass More Asset Management10,349$0.95M0.2%N/A0.010%Search for SEC Filing on Google Icon
2/3/2026Swedbank AB1,363,000$125.25M0.1%-19.8%1.266%Search for SEC Filing on Google Icon
2/3/2026SBI Securities Co. Ltd.1,607$0.15M0.0%+21.3%0.001%Search for SEC Filing on Google Icon
2/2/2026Alliance Wealth Advisors LLC UT9,204$0.85M0.2%-28.8%0.009%Search for SEC Filing on Google Icon
2/2/2026Principal Financial Group Inc.411,719$37.83M0.0%-13.0%0.382%Search for SEC Filing on Google Icon
2/2/2026Truist Financial Corp26,033$2.39M0.0%+795.8%0.024%Search for SEC Filing on Google Icon
2/2/2026Horizon Investments LLC17,024$1.56M0.0%-7.9%0.016%Search for SEC Filing on Google Icon
2/2/2026Danske Bank A S77,728$7.14M0.0%-23.1%0.072%Search for SEC Filing on Google Icon
1/30/2026Sigma Planning Corp9,460$0.87M0.0%+80.4%0.009%Search for SEC Filing on Google Icon
1/30/2026New York State Teachers Retirement System76,926$7.07M0.0%+5.6%0.071%Search for SEC Filing on Google Icon
1/30/2026Jennison Associates LLC11,972$1.10M0.0%+121.5%0.011%Search for SEC Filing on Google Icon
1/30/2026State of New Jersey Common Pension Fund D36,975$3.40M0.0%+1.8%0.034%Search for SEC Filing on Google Icon
1/30/2026Moody Aldrich Partners LLC36,432$3.35M0.6%-23.8%0.034%Search for SEC Filing on Google Icon
1/30/2026Keybank National Association OH3,806$0.35M0.0%-19.3%0.004%Search for SEC Filing on Google Icon
1/30/2026Torren Management LLC280$26K0.0%N/A0.000%Search for SEC Filing on Google Icon
1/30/2026M&T Bank Corp5,233$0.48M0.0%+5.5%0.005%Search for SEC Filing on Google Icon
1/29/2026Comerica Bank30,625$2.81M0.0%-45.2%0.028%Search for SEC Filing on Google Icon
1/29/2026Ashton Thomas Private Wealth LLC3,445$0.32M0.0%+3.3%0.003%Search for SEC Filing on Google Icon
1/29/2026D.A. Davidson & CO.2,400$0.22M0.0%-9.9%0.002%Search for SEC Filing on Google Icon
1/29/2026Kestra Private Wealth Services LLC6,695$0.62M0.0%N/A0.006%Search for SEC Filing on Google Icon
1/29/2026Pictet Asset Management Holding SA40,751$3.75M0.0%+173.4%0.038%Search for SEC Filing on Google Icon
1/29/2026State of Michigan Retirement System25,400$2.33M0.0%-0.8%0.024%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG455,670$41.87M0.0%-19.5%0.423%Search for SEC Filing on Google Icon
1/29/2026Sanctuary Advisors LLC7,561$0.70M0.0%-6.3%0.007%Search for SEC Filing on Google Icon
1/29/2026Vanguard Group Inc.12,290,929$1.13B0.0%-3.2%11.417%Search for SEC Filing on Google Icon
1/29/2026Concurrent Investment Advisors LLC3,354$0.31M0.0%N/A0.003%Search for SEC Filing on Google Icon
1/29/2026Calamos Advisors LLC6,316$0.58M0.0%-32.4%0.006%Search for SEC Filing on Google Icon
1/29/2026China Universal Asset Management Co. Ltd.7,000$0.64M0.0%-12.5%0.007%Search for SEC Filing on Google Icon
1/29/2026Rakuten Securities Inc.556$51K0.0%-55.4%0.001%Search for SEC Filing on Google Icon
1/28/2026Arizona State Retirement System29,760$2.74M0.0%-6.3%0.028%Search for SEC Filing on Google Icon
1/28/2026B. Metzler seel. Sohn & Co. AG18,658$1.71M0.0%-41.2%0.017%Search for SEC Filing on Google Icon
1/28/2026M&T Bank Corp122,636$11.27M0.0%+2,372.0%0.114%Search for SEC Filing on Google Icon
1/28/2026Universal Beteiligungs und Servicegesellschaft mbH137,692$12.72M0.0%+162.6%0.128%Search for SEC Filing on Google Icon
1/28/2026Migdal Insurance & Financial Holdings Ltd.548$50K0.0%N/A0.001%Search for SEC Filing on Google Icon
1/27/2026Meritage Portfolio Management27,432$2.52M0.2%-4.7%0.025%Search for SEC Filing on Google Icon
1/27/2026Novem Group9,632$0.89M0.1%N/A0.009%Search for SEC Filing on Google Icon
1/27/2026Evergreen Capital Management LLC12,625$1.16M0.0%+41.8%0.012%Search for SEC Filing on Google Icon
1/27/2026Zurcher Kantonalbank Zurich Cantonalbank 36,802$3.38M0.0%+1.0%0.034%Search for SEC Filing on Google Icon
1/27/2026Krilogy Financial LLC2,157$0.20M0.0%+5.3%0.002%Search for SEC Filing on Google Icon
1/27/2026Bayforest Capital Ltd1,273$0.12M0.1%-77.4%0.001%Search for SEC Filing on Google Icon
1/27/2026GF Fund Management CO. LTD.15,975$1.47M0.0%-81.3%0.015%Search for SEC Filing on Google Icon
1/26/2026Merit Financial Group LLC4,586$0.42M0.0%+13.0%0.004%Search for SEC Filing on Google Icon
1/26/2026Campbell Newman Asset Management Inc.40,346$3.71M0.3%-3.6%0.037%Search for SEC Filing on Google Icon
1/26/2026Mirae Asset Global Investments Co. Ltd.157,148$14.44M0.0%+21.2%0.146%Search for SEC Filing on Google Icon
1/26/2026Greenwood Capital Associates LLC5,656$0.52M0.1%-11.1%0.005%Search for SEC Filing on Google Icon
1/26/2026Nations Financial Group Inc. IA ADV8,046$0.74M0.0%-9.4%0.007%Search for SEC Filing on Google Icon
1/26/2026CWM LLC16,185$1.49M0.0%+9.0%0.015%Search for SEC Filing on Google Icon
1/26/2026KBC Group NV3,316$0.31M0.0%+12.1%0.003%Search for SEC Filing on Google Icon
1/23/2026Farther Finance Advisors LLC2,343$0.22M0.0%+124.2%0.002%Search for SEC Filing on Google Icon
1/23/2026Oak Ridge Investments LLC3,828$0.35M0.0%+89.2%0.004%Search for SEC Filing on Google Icon
1/23/2026Assetmark Inc.110,754$10.18M0.0%-8.6%0.103%Search for SEC Filing on Google Icon
1/23/2026State of Alaska Department of Revenue18,476$1.70M0.0%+59.6%0.017%Search for SEC Filing on Google Icon
1/23/2026Cambiar Investors LLC18,494$1.70M0.1%-22.1%0.017%Search for SEC Filing on Google Icon
1/23/2026Choreo LLC6,511$0.62M0.0%-2.8%0.006%Search for SEC Filing on Google Icon
1/23/2026Sumitomo Mitsui Trust Group Inc.7,460$0.69M0.0%+7.3%0.007%Search for SEC Filing on Google Icon
1/23/2026Gibbs Wealth Management11,113$1.04M0.3%-4.7%0.010%Search for SEC Filing on Google Icon
1/23/2026Diversify Advisory Services LLC12,293$1.13M0.0%+4.4%0.011%Search for SEC Filing on Google Icon
1/22/2026BNC Wealth Management LLC11,068$1.02M0.3%-4.3%0.010%Search for SEC Filing on Google Icon
1/21/2026AK Global Asset Management LLC5,000$0.46M0.4%N/A0.005%Search for SEC Filing on Google Icon
1/21/2026Yousif Capital Management LLC33,317$3.06M0.0%-1.5%0.031%Search for SEC Filing on Google Icon
1/21/2026Greenleaf Trust3,486$0.32M0.0%+27.4%0.003%Search for SEC Filing on Google Icon
1/21/2026ProCore Advisors LLC3,381$0.31M0.3%N/A0.003%Search for SEC Filing on Google Icon
1/21/2026Azzad Asset Management Inc. ADV24,187$2.22M0.2%-2.6%0.022%Search for SEC Filing on Google Icon
1/21/2026Portside Wealth Group LLC11,515$1.06M0.1%+12.7%0.011%Search for SEC Filing on Google Icon
1/20/2026Harbor Capital Advisors Inc.6,403$0.59M0.0%-30.8%0.006%Search for SEC Filing on Google Icon
1/16/2026Linden Thomas Advisory Services LLC26,259$2.41M0.2%-0.5%0.024%Search for SEC Filing on Google Icon
1/16/2026Empirical Financial Services LLC d.b.a. Empirical Wealth Management7,625$0.70M0.0%+34.7%0.007%Search for SEC Filing on Google Icon
1/15/2026Allspring Global Investments Holdings LLC522,226$51.85M0.1%+5.4%0.485%Search for SEC Filing on Google Icon
1/15/2026Retirement Systems of Alabama129,198$11.87M0.0%-0.7%0.120%Search for SEC Filing on Google Icon
1/14/2026Hennion & Walsh Asset Management Inc.25,979$2.39M0.1%-1.9%0.024%Search for SEC Filing on Google Icon
1/14/2026Spire Wealth Management302$28K0.0%+199.0%0.000%Search for SEC Filing on Google Icon
1/14/2026Exchange Traded Concepts LLC2,575$0.24M0.0%N/A0.002%Search for SEC Filing on Google Icon
1/13/2026Trust Point Inc.2,317$0.21M0.0%-7.9%0.002%Search for SEC Filing on Google Icon
1/13/2026Global X Japan Co. Ltd.5,945$0.55M0.0%+10.4%0.006%Search for SEC Filing on Google Icon
1/13/2026CoreCap Advisors LLC4,367$0.40M0.0%-7.0%0.004%Search for SEC Filing on Google Icon
1/13/2026Norden Group LLC7,882$0.72M0.1%+3.0%0.007%Search for SEC Filing on Google Icon
1/12/2026Moody National Bank Trust Division13,785$1.27M0.1%-37.3%0.013%Search for SEC Filing on Google Icon
1/9/2026Congress Asset Management Co.1,410,615$129.62M0.9%+4.7%1.310%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC63,652$5.85M0.0%+45.1%0.059%Search for SEC Filing on Google Icon
1/9/2026Assenagon Asset Management S.A.46,357$4.26M0.0%-51.0%0.043%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: $98.10
Low: $95.80
High: $102.12

50 Day Range

MA: $101.36
Low: $90.61
High: $125.93

52 Week Range

Now: $98.10
Low: $40.12
High: $135.75

Volume

3,158,441 shs

Average Volume

3,323,477 shs

Market Capitalization

$10.56 billion

P/E Ratio

46.49

Dividend Yield

N/A

Beta

1.53

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

Rambus' top insider investors include:
  1. Luc Seraphin (CEO)
  2. Xianzhi Sean Fan (COO)
  3. Desmond Lynch (CFO)
  4. Emiko Higashi (Director)
  5. Necip Sayiner (Director)
  6. Eric B Stang (Director)
  7. Meera Rao (Director)
  8. John Shinn (SVP)
  9. Steven Laub (Director)
Learn More about top insider investors at Rambus.

Who are the major institutional investors of Rambus?

Rambus' top institutional shareholders include:
  1. Vanguard Group Inc. — 11.42%
  2. Congress Asset Management Co. — 1.31%
  3. Swedbank AB — 1.27%
  4. Allspring Global Investments Holdings LLC — 0.49%
  5. UBS Group AG — 0.42%
  6. Principal Financial Group Inc. — 0.38%
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. Vanguard Group Inc.
  2. Swedbank AB
  3. UBS Group AG
  4. GF Fund Management CO. LTD.
  5. Principal Financial Group Inc.
  6. Schwartz Investment Counsel Inc.
  7. Assenagon Asset Management S.A.
  8. IMC Chicago LLC
During the previous year, company insiders that have sold Rambus company stock include:
  1. Luc Seraphin (CEO)
  2. Xianzhi Sean Fan (COO)
  3. Desmond Lynch (CFO)
  4. Emiko Higashi (Director)
  5. Necip Sayiner (Director)
  6. Eric B Stang (Director)
  7. Meera Rao (Director)
  8. John Shinn (SVP)
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. M&T Bank Corp
  2. Universal Beteiligungs und Servicegesellschaft mbH
  3. Congress Asset Management Co.
  4. Mirae Asset Global Investments Co. Ltd.
  5. Allspring Global Investments Holdings LLC
  6. F m Investments LLC
  7. Pictet Asset Management Holding SA
  8. Truist Financial Corp