Rambus (RMBS) Institutional Ownership $141.82 +8.26 (+6.18%) Closing price 05/21/2026 04:00 PM EasternExtended Trading$142.46 +0.64 (+0.45%) As of 06:45 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Rambus (NASDAQ:RMBS)CurrentInstitutional OwnershipPercentage88.54%Number ofInstitutional Buyers(last 12 months)385TotalInstitutional Inflows(last 12 months)$2.42BNumber ofInstitutional Sellers(last 12 months)234TotalInstitutional Outflows(last 12 months)$1.74B Get RMBS Insider Trade Alerts Want to know when executives and insiders are buying or selling Rambus stock? 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Skip Chart & View Institutional Buying and Selling Data RMBS Institutional Buying and Selling by Quarter Rambus Major Shareholders & Ownership History ExportReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/21/2026Argent Capital Management LLC10,001$860K0.0%+56.2%0.009% 5/19/2026 Western Wealth Management LLC509$44K0.0%N/A0.000% 5/19/2026 Cim Investment Management Inc.4,072$350K0.1%N/A0.004% 5/19/2026 Bank of America Corp DE1,361,570$117.14M0.0%+9.0%1.259% 5/19/2026 Janus Henderson Group PLC358,892$30.88M0.0%-5.4%0.332% 5/18/2026 Amundi16,384$1.41M0.0%+32.4%0.015% 5/18/2026 Gould Capital LLC15,760$1.36M0.8%-14.3%0.015% 5/18/2026 EverSource Wealth Advisors LLC2,188$188K0.0%+14.8%0.002% 5/18/2026 California State Teachers Retirement System124,195$10.68M0.0%+22.9%0.115% 5/18/2026 Royal Bank of Canada29,542$2.54M0.0%-13.1%0.027% Get the Latest News and Ratings for RMBS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Rambus and its competitors with MarketBeat's FREE daily newsletter. 5/18/2026 Ranger Investment Management L.P.224,365$19.30M1.4%+135.0%0.207% 5/18/2026 EdgePoint Investment Group Inc.1,947,742$167.56M1.3%+38.5%1.801% 5/18/2026 Empowered Funds LLC8,443$726K0.0%-8.0%0.008% 5/16/2026 The Manufacturers Life Insurance Company 102,403$8.81M0.0%-10.2%0.095% 5/16/2026 Maverick Capital Ltd.13,028$1.12M0.0%N/A0.012% 5/16/2026 Quantinno Capital Management LP25,621$2.20M0.0%+9.5%0.024% 5/16/2026 SummitTX Capital L.P.80,674$6.94M0.2%-17.1%0.075% 5/16/2026 Lazard Asset Management LLC101,701$8.75M0.0%-65.9%0.094% 5/15/2026 Weiss Asset Management LP63,100$5.43M0.1%+73.8%0.058% 5/15/2026 Rice Hall James & Associates LLC37,059$3.19M0.2%-17.5%0.034% 5/15/2026 Granahan Investment Management LLC280,246$24.11M1.2%+5.5%0.259% 5/14/2026 Public Employees Retirement System of Ohio2,185$188K0.0%-23.9%0.002% 5/14/2026 Keebeck Wealth Management7,439$640K0.1%-4.4%0.007% 5/14/2026 Inceptionr LLC4,351$374K0.1%-25.2%0.004% 5/14/2026 Gibbs Wealth Management18,234$1.57M0.2%+64.1%0.017% 5/14/2026 Sei Investments Co.339,931$29.24M0.0%-12.1%0.314% 5/14/2026 Lido Advisors LLC6,242$537K0.0%-1.6%0.006% 5/14/2026 State of Wyoming657$57K0.0%-40.3%0.001% 5/13/2026 Cetera Investment Advisers28,692$2.47M0.0%+1.1%0.027% 5/13/2026 First Citizens Bank & Trust Co.14,736$1.27M0.0%-0.5%0.014% 5/13/2026 First Trust Advisors LP307,244$26.43M0.0%+2.4%0.284% 5/12/2026 Chase Investment Counsel Corp3,018$259K0.1%N/A0.003% 5/8/2026 PNC Financial Services Group Inc.12,328$1.06M0.0%-4.9%0.011% 5/7/2026 Meeder Advisory Services Inc.3,639$313K0.0%-6.3%0.003% 5/7/2026 WCM Investment Management LLC165,018$13.16M0.0%-4.3%0.153% 5/7/2026 Dimensional Fund Advisors LP1,795,295$154.42M0.0%-5.2%1.660% 5/7/2026 Balefire LLC2,932$252K0.0%+3.8%0.003% 5/7/2026 Parallel Advisors LLC2,252$194K0.0%-10.0%0.002% 5/7/2026 Swiss National Bank213,000$18.32M0.0%+0.4%0.197% 5/6/2026 Jennison Associates LLC6,739$580K0.0%-43.7%0.006% The S-1 just dropped. 22 days left. (Ad)The SpaceX S-1 is now public - $18.7 billion in revenue, a $75 billion raise, and a June 12 Nasdaq listing confirmed. Goldman, Morgan Stanley, and 19 other banks have already carved up the allocation. But buried in those 277 pages is a detail most investors will miss. One small, publicly traded company is so critical to SpaceX's infrastructure that Musk can't scale without it - and the S-1 just confirmed it.Get the 'S-1 Backdoor' ticker name before June 12 closes the window5/6/2026 Aurora Investment Counsel10,883$936K0.5%-43.3%0.010% 5/6/2026 California Public Employees Retirement System227,271$19.55M0.0%+15.8%0.210% 5/6/2026 Future Fund LLC34,386$2.96M1.0%N/A0.032% 5/6/2026 Assetmark Inc.147,554$12.69M0.0%+33.2%0.136% 5/6/2026 Financiere des Professionnels Fonds d investissement inc.2,299$198K0.0%-68.6%0.002% 5/6/2026 Bessemer Group Inc.1,039,905$89.46M0.1%+1,009.5%0.962% 5/6/2026 Allspring Global Investments Holdings LLC66,531$5.98M0.0%-87.3%0.062% 5/6/2026 Independent Financial Group LLC6,525$561K0.0%N/A0.006% 5/5/2026 Bank of New York Mellon Corp779,878$67.09M0.0%-28.7%0.721% 5/5/2026 Illinois Municipal Retirement Fund27,314$2.35M0.0%+12.2%0.025% 5/5/2026 Sanctuary Advisors LLC7,407$637K0.0%-2.0%0.007% 5/4/2026 Emerald Mutual Fund Advisers Trust307,248$26.43M1.3%-21.5%0.284% 5/4/2026 Emerald Advisers LLC493,236$42.43M1.3%-21.3%0.456% 5/4/2026 Empirical Financial Services LLC d.b.a. Empirical Wealth Management9,346$804K0.0%+22.6%0.009% 5/4/2026 State of Michigan Retirement System25,900$2.23M0.0%+2.0%0.024% 5/4/2026 Principal Financial Group Inc.373,536$32.14M0.0%-9.3%0.345% 5/4/2026 Schwartz Investment Counsel Inc.420,337$36.16M1.3%+133.1%0.389% 5/4/2026 Teachers Retirement System of The State of Kentucky49,124$4.23M0.0%-0.5%0.045% 5/2/2026 Diversify Wealth Management LLC31,253$2.69M0.0%+75.7%0.029% 5/1/2026 Fifth Third Bancorp27,361$2.35M0.0%+1,675.5%0.025% 5/1/2026 Sequoia Financial Advisors LLC7,878$678K0.0%+4.6%0.007% 4/30/2026 Hsbc Holdings PLC6,329$544K0.0%-69.0%0.006% 4/30/2026 Summit Securities Group LLC800$69K0.0%N/A0.001% 4/30/2026 Azzad Asset Management Inc. ADV16,221$1.40M0.1%-32.9%0.015% 4/30/2026 Sumitomo Mitsui Trust Group Inc.7,252$624K0.0%-2.8%0.007% 4/30/2026 Capstone Capital Management Ltd23,326$2.01M2.0%N/A0.022% 4/30/2026 Oregon Public Employees Retirement Fund22,069$1.90M0.0%+2.6%0.020% 4/29/2026 KERR FINANCIAL PLANNING Corp6,050$520K0.7%-23.9%0.006% 4/29/2026 Resonant Capital Advisors LLC3,819$329K0.0%N/A0.004% 4/29/2026 Swedbank AB1,563,000$134.47M0.1%+14.7%1.445% 4/28/2026 Abel Hall LLC3,486$300K0.1%-30.2%0.003% 4/28/2026 Stephens Inc. AR32,981$2.84M0.0%+10.2%0.030% 4/28/2026 Stephens Investment Management Group LLC407,783$35.08M0.5%+110.5%0.377% 4/28/2026 Praxis Investment Management Inc.3,003$258K0.0%+15.9%0.003% 4/27/2026 New York State Teachers Retirement System73,322$6.31M0.0%-4.7%0.068% 4/27/2026 Private Advisor Group LLC7,735$665K0.0%-9.2%0.007% 4/27/2026 Y Intercept Hong Kong Ltd36,901$3.18M0.1%+25.3%0.034% 4/27/2026 Leonteq Securities AG6,749$581K0.0%+20,351.5%0.006% 4/25/2026 Strs Ohio24,300$2.09M0.0%-1.2%0.022% 4/25/2026 Keybank National Association OH2,999$258K0.0%-21.2%0.003% 4/24/2026 Element Squared LLC23,567$2.03M1.1%N/A0.022% 4/23/2026 AMI Asset Management Corp2,950$254K0.0%N/A0.003% 4/22/2026 MeadowBrook Investment Advisors LLC2,365$203K0.2%+9.5%0.002% 4/22/2026 Janney Montgomery Scott LLC110,607$9.52M0.0%-9.8%0.102% 4/22/2026 Pictet Asset Management Holding SA43,583$3.75M0.0%+6.9%0.040% 4/22/2026 Ground Swell Capital LLC3,613$311K0.6%N/A0.003% 4/21/2026 Louisiana State Employees Retirement System31,200$2.68M0.0%N/A0.029% 4/20/2026 Kestra Private Wealth Services LLC6,423$553K0.0%-4.1%0.006% 4/20/2026 Blue Trust Inc.1,015$87K0.0%-29.4%0.001% 4/20/2026 Fifth Third Wealth Advisors LLC3,455$297K0.0%+4.6%0.003% SpaceX controls two-thirds of all satellites - and it is about to go public (Ad)SpaceX is targeting an IPO on June 11th, with trading set to begin June 12th and the roadshow kicking off June 4th. The company recently issued a 5-for-1 stock split, dropping shares from $526 to roughly $105 - a deliberate move to open access to everyday investors. SpaceX controls two-thirds of all satellites in orbit, accounts for 85% of global rocket launches, and has collected $13 billion from NASA over the past decade. Analyst Matt McCall has spent months researching how investors can get a stake before the IPO through a regular brokerage account, for less than $100.Watch the free presentation before the June 4th roadshow begins4/20/2026 OP Asset Management Ltd1,468$126K0.0%N/A0.001% 4/20/2026 Assenagon Asset Management S.A.47,531$4.09M0.0%+2.5%0.044% 4/17/2026 Krilogy Financial LLC2,238$193K0.0%+3.8%0.002% 4/17/2026 Campbell Newman Asset Management Inc.41,067$3.53M0.3%+1.8%0.038% 4/16/2026 SG Americas Securities LLC25,962$2.23M0.0%-59.2%0.024% 4/16/2026 Evolve Private Wealth LLC7,878$678K0.0%+7.3%0.007% 4/16/2026 Diversified Trust Co39,861$3.43M0.1%+40.6%0.037% 4/15/2026 Nations Financial Group Inc. IA ADV7,959$685K0.0%-1.1%0.007% 3/20/2026 Hsbc Holdings PLC20,434$1.89M0.0%+60.9%0.019% 3/17/2026 Rockefeller Capital Management L.P.2,684$247K0.0%+22.3%0.002% RMBS Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of RMBS shares? During the previous two years, 561 institutional investors and hedge funds held shares of Rambus. The most heavily invested institutionals were Vanguard Group Inc. ($1.13B), Price T Rowe Associates Inc. MD ($494.88M), State Street Corp ($390.68M), Invesco Ltd. ($381.22M), Geode Capital Management LLC ($261.26M), Alliancebernstein L.P. ($189.86M), and JPMorgan Chase & Co. ($189.78M).Learn more on Rambus' institutional investors. What percentage of Rambus' stock is owned by institutional investors? 88.54% of Rambus' stock is owned by institutional investors. Learn more on RMBS's institutional investor holdings. Which institutional investors have been buying Rambus' stock? Of the 502 institutional investors that purchased Rambus' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Price T Rowe Associates Inc. MD ($7.88M), Norges Bank ($5.46M), Invesco Ltd. ($3.92M), EdgePoint Investment Group Inc. ($3.33M), Raymond James Financial Inc. ($2.38M), Assenagon Asset Management S.A. ($1.91M), and Alliancebernstein L.P. ($1.59M). How much institutional buying is happening at Rambus? Institutional investors have bought a total of 28,320,789 shares in the last 24 months. This purchase volume represents approximately $2.42B in transactions. Which of Rambus' major shareholders have been selling company stock? Of the 234 institutional investors that sold Rambus' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Invesco Ltd. ($2.21M), JPMorgan Chase & Co. ($1.58M), American Century Companies Inc. ($1.39M), EdgePoint Investment Group Inc. ($1.38M), Bank of New York Mellon Corp ($1.24M), Assenagon Asset Management S.A. ($835.21K), and T. Rowe Price Investment Management Inc. ($746.98K). How much institutional selling is happening at Rambus? Institutional investors have sold a total of 19,772,782 shares in the last 24 months. This volume of shares sold represents approximately $1.74B in transactions. Related Companies Axcelis Technologies Major Shareholders Advanced Energy Industries Major Shareholders Applied Materials Major Shareholders Amkor Technology Major Shareholders KLA Major Shareholders Lam Research Major Shareholders MKS Major Shareholders Monolithic Power Systems Major Shareholders Nova Major Shareholders Onto Innovation Major Shareholders This page (NASDAQ:RMBS) was last updated on 5/22/2026 by MarketBeat.com Staff. 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