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Rambus Inc

RMBS
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0000917273

In the last 90 days, Rambus Inc insiders filed 0 open-market purchases and 2 sales; 621 institutions reported holding it in 13F filings for Q2 2026, worth $13.3B in total; superinvestors Duquesne Family Office and Maverick Capital hold it.

13F holders, Q3 2023

Institutional positions in Rambus Inc as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
350
−41 vs. Q2 2023
Shares held
98.0M
+2.29M (+2.4%) vs. Q2 2023
Total value
$5.48B
−$656.3M (−10.7%) vs. Q2 2023
New holders
40
153 more added
Sold out
81
115 more reduced

2 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting RMBS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2023: 350 institutions
Q1 2021: 213 institutionsQ2 2021: 219 institutionsQ3 2021: 236 institutionsQ4 2021: 258 institutionsQ1 2022: 276 institutionsQ2 2022: 253 institutionsQ3 2022: 241 institutionsQ4 2022: 303 institutionsQ1 2023: 337 institutionsQ2 2023: 393 institutionsQ3 2023: 350 institutionsQ4 2023: 400 institutionsQ1 2024: 375 institutionsQ2 2024: 363 institutionsQ3 2024: 376 institutionsQ4 2024: 395 institutionsQ1 2025: 413 institutionsQ2 2025: 459 institutionsQ3 2025: 513 institutionsQ4 2025: 554 institutionsQ1 2026: 557 institutionsQ2 2026: 621 institutions
Value heldQ3 2023: $5.48B
Q1 2021: $1.86BQ2 2021: $2.30BQ3 2021: $2.07BQ4 2021: $2.80BQ1 2022: $2.98BQ2 2022: $2.07BQ3 2022: $2.38BQ4 2022: $3.27BQ1 2023: $4.81BQ2 2023: $6.14BQ3 2023: $5.48BQ4 2023: $6.62BQ1 2024: $6.00BQ2 2024: $5.64BQ3 2024: $3.94BQ4 2024: $5.03BQ1 2025: $5.01BQ2 2025: $6.22BQ3 2025: $10.3BQ4 2025: $9.18BQ1 2026: $8.83BQ2 2026: $13.3B
Institutions holding RMBS and their total value by quarter
QuarterHoldersValue
Q2 2026621$13.3B
Q1 2026557$8.83B
Q4 2025554$9.18B
Q3 2025513$10.3B
Q2 2025459$6.22B
Q1 2025413$5.01B
Q4 2024395$5.03B
Q3 2024376$3.94B
Q2 2024363$5.64B
Q1 2024375$6.00B
Q4 2023400$6.62B
Q3 2023350$5.48B
Q2 2023393$6.14B
Q1 2023337$4.81B
Q4 2022303$3.27B
Q3 2022241$2.38B
Q2 2022253$2.07B
Q1 2022276$2.98B
Q4 2021258$2.80B
Q3 2021236$2.07B
Q2 2021219$2.30B
Q1 2021213$1.86B

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q2 2023.

Institutions holding RMBS in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Prudential PLC10,898$608.0K0.01%−4,604−29.7%Reduced
Mercer Global Advisors Inc10,744$599.0K0.00%+1,293+13.7%Added
Ameritas Investment Partners, Inc.10,735$598.9K0.02%+1,864+21.0%Added
Mariner, LLC10,723$598.2K0.00%+548+5.4%Added
Northwestern Mutual Wealth Management Co10,145$566.0K0.00%+1,105+12.2%Added
Truvestments Capital LLC9,670$539.5K0.28%+61+0.6%Added
Chase Investment Counsel Corp9,525$531.0K0.26%+9,525New
ARGA Investment Management, LP9,489$529.4K0.02%00.0%Unchanged
Bank Julius Baer & Co. Ltd, Zurich9,446$527.0K0.00%+340+3.7%Added
Boston Partners9,443$526.8K0.00%+1,762+22.9%Added
Crossmark Global Holdings, Inc.8,383$510.0K0.01%−223−2.6%Reduced
Great Lakes Advisors, LLC8,962$500.0K0.00%−268,918−96.8%Reduced
National Asset Management, Inc.8,742$487.7K0.01%−8,835−50.3%Reduced
Evergreen Capital Management LLC8,655$482.9K0.02%+379+4.6%Added
Avantax Planning Partners, Inc.8,600$479.8K0.02%00.0%Unchanged
Toroso Investments, LLC8,475$472.8K0.01%+3,901+85.3%Added
Contravisory Investment Management, Inc.8,400$468.6K0.13%−1,520−15.3%Reduced
Raymond James Financial Services Advisors, Inc.8,092$451.5K0.00%+2,642+48.5%Added
MML Investors Services, LLC8,051$449.0K0.00%+690+9.4%Added
Pinpoint Asset Management Ltd8,000$446.3K0.10%+4,000+100.0%Added
Cutler Group LP7,810$435.0K0.07%+2,365+43.4%Added
Mackenzie Financial Corp7,629$417.5K0.00%−26,999−78.0%Reduced
The PNC Financial Services Group, Inc.7,377$411.6K0.00%+62+0.8%Added
O'Shaughnessy Asset Management, LLC7,224$403.0K0.01%+1,649+29.6%Added
Virginia Retirement Systems Et Al7,200$401.7K0.00%−2,600−26.5%Reduced
Robeco Institutional Asset Management B.V.7,187$401.0K0.00%−6,154−46.1%Reduced
Sequoia Financial Advisors, LLC7,149$398.8K0.01%+343+5.0%Added
CWM, LLC7,032$392.0K0.00%+2,574+57.7%Added
New York Life Investment Management LLC6,935$386.9K0.00%−1,105−13.7%Reduced
Hennion & Walsh Asset Management, Inc.6,557$365.8K0.02%+2,349+55.8%Added
Syon Capital LLC6,554$365.6K0.05%+6,554New
Moors & Cabot, Inc.6,550$365.4K0.02%−6,250−48.8%Reduced
Xponance, Inc.6,399$357.0K0.00%00.0%Unchanged
Metropolitan Life Insurance Co6,392$356.6K0.02%+434+7.3%Added
Synovus Financial Corp6,135$342.3K0.00%+1,031+20.2%Added
Caxton Associates LP6,062$338.2K0.05%−3,654−37.6%Reduced
Shell Asset Management Co5,912$330.0K0.01%−93−1.5%Reduced
Veriti Management LLC5,738$320.1K0.04%+92+1.6%Added
Commonwealth Equity Services, LLC5,724$319.0K0.00%+83+1.5%Added
Redwood Wealth Management Group, LLC5,563$310.4K0.36%+1,795+47.6%Added
Pathstone Family Office, LLC5,415$302.1K0.00%+1,324+32.4%Added
Two Sigma Securities, LLC5,375$299.9K0.01%+5,375New
Quantinno Capital Management LP5,345$298.0K0.01%+769+16.8%Added
Shelton Capital Management5,330$297.4K0.01%−525−9.0%Reduced
Fort, L.P.5,162$288.0K0.80%+545+11.8%Added
Public Employees Retirement System of Ohio5,147$287.0K0.00%+454+9.7%Added
Guidance Capital, Inc5,151$281.9K0.13%+293+6.0%Added
Buckingham Strategic Partners5,028$280.5K0.01%−9−0.2%Reduced
Skandinaviska Enskilda Banken AB (publ)5,000$279.0K0.00%−9,400−65.3%Reduced
Rockland Trust Co4,996$278.7K0.02%00.0%Unchanged
Balyasny Asset Management LLC4,887$272.6K0.00%+4,887New
Nisa Investment Advisors, LLC4,842$270.1K0.00%00.0%Unchanged
First Republic Investment Management, Inc.4,643$259.0K0.00%−678,275−99.3%Reduced
Inceptionr LLC4,614$257.4K0.15%+58+1.3%Added
Brinker Capital Investments, LLC4,525$252.4K0.00%−5,818−56.3%Reduced
Orion Portfolio Solutions, LLC4,525$252.4K0.00%−5,818−56.3%Reduced
Ewa, LLC3,989$249.8K0.16%+143+3.7%Added
Blair William & Co4,464$249.0K0.00%+150+3.5%Added
Coldstream Capital Management Inc4,459$248.8K0.01%+13+0.3%Added
Belpointe Asset Management LLC4,357$243.1K0.03%−315−6.7%Reduced
Lazard Asset Management LLC4,375$243.0K0.00%+3,737+585.7%Added
Pinnacle Wealth Planning Services, Inc.4,341$242.2K0.04%−2,350−35.1%Reduced
Twinbeech Capital LP4,339$242.1K0.00%−41,107−90.5%Reduced
Associated Banc-Corp4,300$239.9K0.01%00.0%Unchanged
Miracle Mile Advisors, LLC4,261$237.7K0.01%−370−8.0%Reduced
Verition Fund Management LLC4,097$228.6K0.00%00.0%Unchanged
CI Private Wealth, LLC4,009$223.7K0.00%+56+1.4%Added
NJ State Employees Deferred Compensation Plan4,000$223.2K0.03%00.0%Unchanged
IFP Advisors, Inc3,787$211.3K0.01%+2,421+177.2%Added
Eqis Capital Management, Inc.3,748$209.1K0.03%−309−7.6%Reduced
Cresset Asset Management, LLC3,641$203.1K0.00%+343+10.4%Added
HHM Wealth Advisors, LLC3,500$195.3K0.04%−2,000−36.4%Reduced
Quadrant Capital Group LLC3,500$195.3K0.02%+669+23.6%Added
DekaBank Deutsche Girozentrale3,273$183.0K0.00%+3,273New
Westpac Banking Corp3,100$172.9K0.01%+3,100New
USA Financial Portformulas Corp3,064$170.9K0.26%−91−2.9%Reduced
SG Americas Securities, LLC2,958$165.0K0.00%−8−0.3%Reduced
Cullen/Frost Bankers, Inc.2,611$145.7K0.00%00.0%Unchanged
KBC Group NV2,356$131.0K0.00%−6,057−72.0%Reduced
Advisors Asset Management, Inc.2,068$115.4K0.00%+1,110+115.9%Added
Northwest Capital Management Inc2,000$111.6K0.04%00.0%Unchanged
Archer Investment Corp1,780$99.3K0.03%00.0%Unchanged
Migdal Insurance & Financial Holdings Ltd.1,676$93.0K0.00%+227+15.7%Added
Householder Group Estate & Retirement Specialist, LLC1,591$88.8K0.03%+1,591New
Covestor Ltd1,455$81.0K0.06%+489+50.6%Added
Tower Research Capital LLC (TRC)1,438$80.2K0.00%−1,411−49.5%Reduced
Exchange Traded Concepts, LLC1,403$78.3K0.00%+1,403New
Leonteq Securities AG1,345$75.0K0.01%00.0%Unchanged
Lindbrook Capital, LLC1,332$74.3K0.01%+173+14.9%Added
Clearstead Advisors, LLC1,315$73.4K0.00%00.0%Unchanged
NBC Securities, Inc.1,293$72.0K0.01%+1,293New
Spire Wealth Management1,187$66.2K0.00%−1,818−60.5%Reduced
Park Place Capital Corp1,081$60.3K0.02%00.0%Unchanged
Nomura Asset Management Co Ltd1,027$57.3K0.00%−1,159−53.0%Reduced
Geneos Wealth Management Inc.1,000$55.8K0.00%+1,000New
Signaturefd, LLC934$52.1K0.00%+132+16.5%Added
Coppell Advisory Solutions LLC1,379$49.4K0.02%+1,232+838.1%Added
Versant Capital Management, Inc732$40.8K0.01%−13−1.7%Reduced
Orion Capital Management LLC703$39.2K0.03%+703New
Parallel Advisors, LLC583$32.5K0.00%+105+22.0%Added