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Rambus (RMBS) Institutional Ownership

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$96.42 +0.53 (+0.55%)
Closing price 08/11/2026 04:00 PM Eastern
Extended Trading
$98.14 +1.72 (+1.78%)
As of 07:15 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.
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Institutional Ownership Changes (13F Filings) for Rambus (NASDAQ:RMBS)

Current
Institutional Ownership
Percentage
88.54%
Number of
Institutional Buyers
(last 12 months)
362
Total
Institutional Inflows
(last 12 months)
$4.27B
Number of
Institutional Sellers
(last 12 months)
230
Total
Institutional Outflows
(last 12 months)
$1.58B
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RMBS Institutional Buying and Selling by Quarter

Rambus Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/12/2026Rakuten Securities Inc.544$72K0.0%N/A0.001%
8/12/2026Callan Family Office LLC3,239$430K0.0%N/A0.003%
8/12/2026Keebeck Wealth Management6,214$825K0.1%N/A0.006%
8/11/2026Allworth Financial LP1,847$245K0.0%N/A0.002%
8/11/2026B. Metzler seel. Sohn & Co. AG22,274$2.96M0.0%N/A0.021%
8/11/2026Vise Technologies Inc.6,912$917K0.0%N/A0.006%
8/11/2026E Fund Management Co. Ltd.11,596$1.54M0.0%N/A0.011%
8/10/2026 Great Lakes Advisors LLC14,884$1.98M0.0%N/A0.014%
8/10/2026 Danske Bank A S200$27K0.0%N/A0.000%
8/10/2026 Diversify Advisory Services LLC29,957$2.89M0.0%N/A0.028%
8/8/2026 Deepwater Asset Management LLC44,634$5.93M2.7%N/A0.041%
8/8/2026 Meeder Advisory Services Inc.3,551$471K0.0%N/A0.003%
8/7/2026 BlackRock Inc.13,964,477$1.85B0.0%N/A12.875%
8/7/2026 Deutsche Bank AG23,567$3.13M0.0%N/A0.022%
8/7/2026 Rice Hall James & Associates LLC34,819$4.62M0.2%N/A0.032%
8/7/2026 TimesSquare Capital Management LLC267,705$35.54M0.5%N/A0.247%
8/7/2026 Mitsubishi UFJ Asset Management Co. Ltd.306$41K0.0%N/A0.000%
8/7/2026 Persistent Asset Partners Ltd368$49K0.0%N/A0.000%
8/6/2026 Global Retirement Partners LLC8,471$1.12M0.0%N/A0.008%
8/6/2026 Bank of New York Mellon Corp828,233$109.94M0.0%N/A0.764%
8/6/2026 Focus Partners Advisor Solutions LLC3,400$451K0.0%N/A0.003%
8/6/2026 State of Wyoming13,749$1.83M0.2%N/A0.013%
8/6/2026 Stoneridge Investment Partners LLC2,237$204K0.1%N/A0.002%
7/10/2026 Handelsbanken Fonder AB150,857$20.03M0.1%+28.1%0.140%
7/10/2026 Redhawk Wealth Advisors Inc.9,237$1.23M0.1%N/A0.009%
7/9/2026 Everhart Financial Group Inc.2,200$292K0.0%-9.4%0.002%
7/9/2026 Hennion & Walsh Asset Management Inc.24,150$3.21M0.1%-6.1%0.022%
7/8/2026 Assenagon Asset Management S.A.31,896$4.23M0.0%-32.9%0.029%
7/7/2026 Balefire LLC2,768$367K0.1%-5.6%0.003%
7/7/2026 GAMMA Investing LLC4,139$549K0.0%-14.2%0.004%
7/7/2026 Harbor Investment Advisory LLC1,019$135K0.0%N/A0.001%
7/7/2026 Moody National Bank Trust Division2,148$285K0.0%-86.7%0.002%
7/7/2026 CoreCap Advisors LLC400$53K0.0%N/A0.000%
7/2/2026 KERR FINANCIAL PLANNING Corp5,850$777K0.9%-3.3%0.005%
6/18/2026Pacer Advisors Inc.37,001$3.18M0.0%+80.9%0.034%
6/16/2026Empowered Funds LLC8,443$726K0.0%-8.0%0.008%
6/3/2026 Parallel Advisors LLC2,252$194K0.0%-10.0%0.002%
6/3/2026NewEdge Advisors LLC1,070$92K0.0%-45.3%0.001%
6/2/2026Optiver Holding B.V.480$41K0.0%-15.0%0.000%
5/26/2026 Glenmede Trust Co. NA159,131$13.69M0.1%-7.8%0.147%
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5/22/2026Segall Bryant & Hamill LLC157,450$13.55M0.2%+45.2%0.146%
5/21/2026 Argent Capital Management LLC10,001$860K0.0%+56.2%0.009%
5/19/2026Western Wealth Management LLC509$44K0.0%N/A0.000%
5/19/2026Cim Investment Management Inc.4,072$350K0.1%N/A0.004%
5/19/2026Bank of America Corp DE1,361,570$117.14M0.0%+9.0%1.259%
5/19/2026Janus Henderson Group PLC358,892$30.88M0.0%-5.4%0.332%
5/18/2026Amundi16,384$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%
5/18/2026California State Teachers Retirement System124,195$10.68M0.0%+22.9%0.115%
5/18/2026Royal Bank of Canada29,542$2.54M0.0%-13.1%0.027%
5/18/2026Ranger Investment Management L.P.224,365$19.30M1.4%+135.0%0.207%
5/18/2026EdgePoint Investment Group Inc.1,947,742$167.56M1.3%+38.5%1.801%
5/18/2026Empowered Funds LLC8,443$726K0.0%-8.0%0.008%
5/16/2026The Manufacturers Life Insurance Company102,403$8.81M0.0%-10.2%0.095%
5/16/2026Maverick Capital Ltd.13,028$1.12M0.0%N/A0.012%
5/16/2026Quantinno Capital Management LP25,621$2.20M0.0%+9.5%0.024%
5/16/2026SummitTX Capital L.P.80,674$6.94M0.2%-17.1%0.075%
5/16/2026Lazard Asset Management LLC101,701$8.75M0.0%-65.9%0.094%
5/15/2026Weiss 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%
5/15/2026Granahan Investment Management LLC280,246$24.11M1.2%+5.5%0.259%
5/14/2026Public Employees Retirement System of Ohio2,185$188K0.0%-23.9%0.002%
5/14/2026Keebeck Wealth Management7,439$640K0.1%-4.4%0.007%
5/14/2026Inceptionr LLC4,351$374K0.1%-25.2%0.004%
5/14/2026Gibbs Wealth Management18,234$1.57M0.2%+64.1%0.017%
5/14/2026Sei 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%
5/13/2026Cetera 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%
5/13/2026First 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%
5/7/2026WCM Investment Management LLC165,018$13.16M0.0%-4.3%0.153%
5/7/2026Dimensional 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%
5/7/2026Swiss National Bank213,000$18.32M0.0%+0.4%0.197%
5/6/2026 Jennison Associates LLC6,739$580K0.0%-43.7%0.006%
5/6/2026 Aurora Investment Counsel10,883$936K0.5%-43.3%0.010%
5/6/2026California Public Employees Retirement System227,271$19.55M0.0%+15.8%0.210%
5/6/2026Future 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%
5/6/2026Bessemer Group Inc.1,039,905$89.46M0.1%+1,009.5%0.962%
5/6/2026Allspring 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%
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5/5/2026Illinois Municipal Retirement Fund27,314$2.35M0.0%+12.2%0.025%
5/5/2026Sanctuary 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%
5/4/2026Teachers 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%


RMBS Institutional Ownership - Frequently Asked Questions

During the previous two years, 561 institutional investors and hedge funds held shares of Rambus. The most heavily invested institutionals were BlackRock Inc. ($1.85B), 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), and Alliancebernstein L.P. ($189.86M).Learn more on Rambus' institutional investors.

88.54% of Rambus' stock is owned by institutional investors. Learn more on RMBS's institutional investor holdings.

Of the 506 institutional investors that purchased Rambus' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($13.96M), 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), and Assenagon Asset Management S.A. ($1.68M).

Institutional investors have bought a total of 40,733,768 shares in the last 24 months. This purchase volume represents approximately $4.27B in transactions.

Of the 225 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), EdgePoint Investment Group Inc. ($1.38M), Bank of New York Mellon Corp ($1.24M), JPMorgan Chase & Co. ($1.12M), Assenagon Asset Management S.A. ($850.84K), T. Rowe Price Investment Management Inc. ($746.98K), and Swedbank AB ($674K).

Institutional investors have sold a total of 17,173,173 shares in the last 24 months. This volume of shares sold represents approximately $1.58B in transactions.


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Institutional ownership data for NASDAQ:RMBS is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/12/2026. New 13F filings are added each quarter as they're published.
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