InsiderTrades.com logo

RMBS Insider Trading

Insider Ownership Percentage: 1.00%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $10,798,163.20

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: $98.81
Price Change: ▲ Price Increase of +0.78 (0.80%)
As of 12/4/2025 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
12/2/2025Allworth Financial LP1,601$0.17M0.0%+8.2%0.001%Search for SEC Filing on Google Icon
12/2/2025IFP Advisors Inc442$47K0.0%+126.7%0.000%Search for SEC Filing on Google Icon
12/2/2025Swiss Life Asset Management Ltd4,886$0.51M0.0%N/A0.005%Search for SEC Filing on Google Icon
11/25/2025KERR FINANCIAL PLANNING Corp7,950$0.83M1.1%N/A0.007%Search for SEC Filing on Google Icon
11/24/2025Penn Capital Management Company LLC151,825$15.87M1.2%-47.0%0.141%Search for SEC Filing on Google Icon
11/24/2025CIBC Private Wealth Group LLC505$53K0.0%+1,194.9%0.000%Search for SEC Filing on Google Icon
11/21/2025CIBC Bancorp USA Inc.11,510$1.20M0.0%N/A0.011%Search for SEC Filing on Google Icon
11/21/2025Oarsman Capital Inc.3,420$0.36M0.0%-12.3%0.003%Search for SEC Filing on Google Icon
11/20/2025WBI Investments LLC4,356$0.45M0.1%N/A0.004%Search for SEC Filing on Google Icon
11/19/2025Captrust Financial Advisors42,034$4.38M0.0%-1.5%0.039%Search for SEC Filing on Google Icon
11/19/2025Coldstream Capital Management Inc.5,703$0.59M0.0%+2.2%0.005%Search for SEC Filing on Google Icon
11/19/2025Danske Bank A S101,058$10.53M0.0%N/A0.094%Search for SEC Filing on Google Icon
11/18/2025Advisory Services Network LLC685$71K0.0%N/A0.001%Search for SEC Filing on Google Icon
11/17/2025Hancock Whitney Corp29,835$3.11M0.1%+299.6%0.028%Search for SEC Filing on Google Icon
11/17/2025Oberweis Asset Management Inc.507,899$52.92M2.0%+0.4%0.472%Search for SEC Filing on Google Icon
11/17/2025NewEdge Advisors LLC594$62K0.0%-93.1%0.001%Search for SEC Filing on Google Icon
11/17/2025Castleark Management LLC110,838$11.55M0.3%-3.4%0.103%Search for SEC Filing on Google Icon
11/17/2025Gould Capital LLC17,939$1.87M1.2%+3.1%0.017%Search for SEC Filing on Google Icon
11/17/2025XTX Topco Ltd6,221$0.65M0.0%+39.1%0.006%Search for SEC Filing on Google Icon
11/17/2025CacheTech Inc.3,018$0.31M0.1%N/A0.003%Search for SEC Filing on Google Icon
11/17/2025United Capital Financial Advisors LLC2,693$0.28M0.0%N/A0.003%Search for SEC Filing on Google Icon
11/17/2025Wexford Capital LP999$0.10M0.0%N/A0.001%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC6,397$0.67M0.0%-19.7%0.006%Search for SEC Filing on Google Icon
11/17/2025State Street Corp4,389,985$457.44M0.0%-2.6%4.078%Search for SEC Filing on Google Icon
11/17/2025Polymer Capital Management US LLC5,374$0.56M0.1%N/A0.005%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd29,117$3.03M0.0%-91.7%0.027%Search for SEC Filing on Google Icon
11/17/2025Public Employees Retirement System of Ohio2,890$0.30M0.0%-93.5%0.003%Search for SEC Filing on Google Icon
11/17/2025PenderFund Capital Management Ltd.305$32K0.0%-49.3%0.000%Search for SEC Filing on Google Icon
11/17/2025Nomura Holdings Inc.27,046$2.82M0.0%N/A0.025%Search for SEC Filing on Google Icon
11/17/2025Northwestern Mutual Wealth Management Co.4,611$0.48M0.0%-30.1%0.004%Search for SEC Filing on Google Icon
11/17/2025Northern Trust Corp1,385,874$144.41M0.0%-0.6%1.287%Search for SEC Filing on Google Icon
11/17/2025Mariner LLC19,871$2.07M0.0%+10.9%0.018%Search for SEC Filing on Google Icon
11/17/2025National Bank of Canada FI1,859$0.19M0.0%N/A0.002%Search for SEC Filing on Google Icon
11/17/2025Mercer Global Advisors Inc. ADV7,759$0.81M0.0%+20.0%0.007%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.152,533$15.89M0.0%-12.4%0.142%Search for SEC Filing on Google Icon
11/17/2025Larson Financial Group LLC4,275$0.45M0.0%+1,623.8%0.004%Search for SEC Filing on Google Icon
11/17/2025Lido Advisors LLC6,296$0.66M0.0%+22.3%0.006%Search for SEC Filing on Google Icon
11/17/2025Hilltop Holdings Inc.2,049$0.21M0.0%N/A0.002%Search for SEC Filing on Google Icon
11/17/2025Granahan Investment Management LLC238,443$24.85M1.0%+83.3%0.221%Search for SEC Filing on Google Icon
11/17/2025Fred Alger Management LLC67,293$7.01M0.0%-28.2%0.063%Search for SEC Filing on Google Icon
11/17/2025Focus Partners Wealth1,961$0.20M0.0%-50.4%0.002%Search for SEC Filing on Google Icon
11/17/2025EdgePoint Investment Group Inc.2,682,956$279.56M2.1%-3.7%2.492%Search for SEC Filing on Google Icon
11/17/2025Cinctive Capital Management LP16,315$1.70M0.1%-75.2%0.015%Search for SEC Filing on Google Icon
11/17/2025California Public Employees Retirement System196,091$20.43M0.0%+5.5%0.182%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE1,550,665$161.58M0.0%+196.0%1.440%Search for SEC Filing on Google Icon
11/17/2025Algert Global LLC122,387$12.75M0.2%-28.4%0.114%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.1,822,030$189.86M0.1%+572.7%1.693%Search for SEC Filing on Google Icon
11/14/2025Creative Planning86,598$9.02M0.0%+23.3%0.080%Search for SEC Filing on Google Icon
11/14/2025Lazard Asset Management LLC298,928$31.15M0.0%+39.4%0.278%Search for SEC Filing on Google Icon
11/14/2025AQR Capital Management LLC547,604$57.06M0.0%-22.0%0.509%Search for SEC Filing on Google Icon
11/14/2025SummitTX Capital L.P.67,388$7.02M0.3%-74.9%0.063%Search for SEC Filing on Google Icon
11/14/2025Zacks Investment Management19,110$1.99M0.0%+6.6%0.018%Search for SEC Filing on Google Icon
11/14/2025Credit Agricole S A15,114$1.58M0.0%N/A0.014%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.1,190,320$124.03M0.0%-13.2%1.106%Search for SEC Filing on Google Icon
11/14/2025Equitable Holdings Inc.6,657$0.69M0.0%N/A0.006%Search for SEC Filing on Google Icon
11/14/2025Caisse de depot et placement du Quebec380,604$39.66M0.1%+2,744.8%0.354%Search for SEC Filing on Google Icon
11/14/2025California State Teachers Retirement System101,119$10.54M0.0%+1.6%0.094%Search for SEC Filing on Google Icon
11/14/2025Osterweis Capital Management Inc.151,560$15.79M0.7%-46.7%0.141%Search for SEC Filing on Google Icon
11/14/2025Horizon Investments LLC18,477$1.93M0.0%+101.8%0.017%Search for SEC Filing on Google Icon
11/14/2025Zurcher Kantonalbank Zurich Cantonalbank 36,442$3.80M0.0%+21.1%0.034%Search for SEC Filing on Google Icon
11/14/2025Brooklyn Investment Group2,020$0.21M0.0%+92.2%0.002%Search for SEC Filing on Google Icon
11/14/2025Keebeck Wealth Management7,607$0.79M0.1%-3.1%0.007%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC253,906$26.46M0.0%-39.9%0.236%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP77,890$8.12M0.0%-40.8%0.072%Search for SEC Filing on Google Icon
11/14/2025Vident Advisory LLC57,087$5.95M0.1%-24.4%0.053%Search for SEC Filing on Google Icon
11/14/2025Analog Century Management LP631,343$65.79M3.5%-23.7%0.586%Search for SEC Filing on Google Icon
11/14/2025Wellington Management Group LLP750,446$78.20M0.0%-37.8%0.697%Search for SEC Filing on Google Icon
11/14/2025Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna29,750$3.10M1.2%-10.3%0.028%Search for SEC Filing on Google Icon
11/14/2025Harvest Fund Management Co. Ltd9,888$1.03M0.0%N/A0.009%Search for SEC Filing on Google Icon
11/14/2025Comerica Bank55,890$5.82M0.0%-33.3%0.052%Search for SEC Filing on Google Icon
11/14/2025FORA Capital LLC6,256$0.65M0.1%N/A0.006%Search for SEC Filing on Google Icon
11/14/2025Glenmede Investment Management LP188,187$19.61M0.1%-36.7%0.175%Search for SEC Filing on Google Icon
11/13/2025Epoch Investment Partners Inc.20,164$2.10M0.0%+10.3%0.019%Search for SEC Filing on Google Icon
11/13/2025Pathstone Holdings LLC20,005$2.09M0.0%+9.7%0.019%Search for SEC Filing on Google Icon
11/13/2025Vise Technologies Inc.2,846$0.30M0.0%N/A0.003%Search for SEC Filing on Google Icon
11/13/2025Arrowstreet Capital Limited Partnership173,353$18.06M0.0%N/A0.161%Search for SEC Filing on Google Icon
11/13/2025Invesco Ltd.2,432,032$253.42M0.0%+4.7%2.259%Search for SEC Filing on Google Icon
11/13/2025Sei Investments Co.280,553$29.23M0.0%-31.1%0.261%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG565,805$58.96M0.0%+302.9%0.526%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets165,311$17.23M0.0%-21.0%0.154%Search for SEC Filing on Google Icon
11/13/2025Mackenzie Financial Corp18,413$1.92M0.0%-43.5%0.017%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.472,349$49.22M0.0%+10.4%0.439%Search for SEC Filing on Google Icon
11/13/2025Van ECK Associates Corp152,512$15.89M0.0%+34.5%0.142%Search for SEC Filing on Google Icon
11/13/2025Legal & General Group Plc219,714$22.89M0.0%-4.6%0.204%Search for SEC Filing on Google Icon
11/13/2025Swiss National Bank208,200$21.69M0.0%+1.5%0.193%Search for SEC Filing on Google Icon
11/13/2025Pinpoint Asset Management Singapore Pte. Ltd.3,014$0.31M0.1%+301,300.0%0.003%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.148,271$15.45M0.0%+13.0%0.138%Search for SEC Filing on Google Icon
11/13/2025Schroder Investment Management Group143,093$14.88M0.0%+9.5%0.133%Search for SEC Filing on Google Icon
11/13/2025Inceptionr LLC11,662$1.22M0.3%+35.5%0.011%Search for SEC Filing on Google Icon
11/13/2025Private Advisor Group LLC6,727$0.70M0.0%+5.0%0.006%Search for SEC Filing on Google Icon
11/13/2025Diversify Advisory Services LLC11,777$1.25M0.0%-17.6%0.011%Search for SEC Filing on Google Icon
11/13/2025B. Metzler seel. Sohn & Co. AG31,732$3.31M0.0%-31.7%0.029%Search for SEC Filing on Google Icon
11/13/2025Regal Partners Ltd4,000$0.42M0.0%N/A0.004%Search for SEC Filing on Google Icon
11/13/2025Parallel Advisors LLC2,383$0.25M0.0%+26.8%0.002%Search for SEC Filing on Google Icon
11/13/2025Meiji Yasuda Asset Management Co Ltd.2,500$0.26M0.0%N/A0.002%Search for SEC Filing on Google Icon
11/13/2025Natixis Advisors LLC26,058$2.72M0.0%+6.8%0.024%Search for SEC Filing on Google Icon
11/13/2025Blair William & Co. IL4,900$0.51M0.0%+7.9%0.005%Search for SEC Filing on Google Icon
11/13/2025First Trust Advisors LP200,545$20.90M0.0%+34.3%0.186%Search for SEC Filing on Google Icon
11/13/2025Neo Ivy Capital Management5,770$0.60M0.1%-40.8%0.005%Search for SEC Filing on Google Icon
11/13/2025Neuberger Berman Group LLC1,482,008$154.41M0.1%+9.9%1.377%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: $98.81
Low: $96.56
High: $99.85

50 Day Range

MA: $99.18
Low: $87.28
High: $113.61

52 Week Range

Now: $98.81
Low: $40.12
High: $114.55

Volume

986,141 shs

Average Volume

1,612,139 shs

Market Capitalization

$10.64 billion

P/E Ratio

46.83

Dividend Yield

N/A

Beta

1.51

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. — 11.80%
  2. State Street Corp — 4.08%
  3. EdgePoint Investment Group Inc. — 2.49%
  4. JPMorgan Chase & Co. — 2.38%
  5. Invesco Ltd. — 2.26%
  6. Dimensional Fund Advisors LP — 1.79%
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. Assenagon Asset Management S.A.
  2. JPMorgan Chase & Co.
  3. Westfield Capital Management Co. LP
  4. Wellington Management Group LLP
  5. Voya Investment Management LLC
  6. Bank of New York Mellon Corp
  7. Qube Research & Technologies Ltd
  8. SummitTX Capital L.P.
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. Alliancebernstein L.P.
  2. Bank of America Corp DE
  3. Rafferty Asset Management LLC
  4. Barclays PLC
  5. Allspring Global Investments Holdings LLC
  6. UBS Group AG
  7. Caisse de depot et placement du Quebec
  8. William Blair Investment Management LLC