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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, Q4 2024

Institutional positions in Rambus Inc as of Dec 31, 2024. 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
395
+27 vs. Q3 2024
Shares held
95.1M
+3.12M (+3.4%) vs. Q3 2024
Total value
$5.03B
+$1.14B (+29.4%) vs. Q3 2024
New holders
78
121 more added
Sold out
51
153 more reduced

8 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 holdersQ4 2024: 395 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 heldQ4 2024: $5.03B
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, Q4 2024

Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q3 2024.

Institutions holding RMBS in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Nomura Holdings Inc14,115$746.1K0.00%+14,115New
BNC Wealth Management, LLC14,068$743.6K0.24%−200−1.4%Reduced
Federated Hermes, Inc.13,013$687.9K0.00%−4,986−27.7%Reduced
Hennion & Walsh Asset Management, Inc.12,909$682.4K0.03%+2,853+28.4%Added
Cerity Partners LLC15,076$681.4K0.00%−1,539−9.3%Reduced
Commonwealth Equity Services, LLC12,542$663.0K0.00%−713−5.4%Reduced
Mariner, LLC12,473$659.4K0.00%+167+1.4%Added
Stifel Financial Corp12,203$645.1K0.00%+12,203New
State of Alaska, Department of Revenue12,155$642.0K0.01%−355−2.8%Reduced
RSM US Wealth Management LLC11,837$634.5K0.01%+1,094+10.2%Added
Ontario Teachers Pension Plan Board11,998$634.2K0.01%+662+5.8%Added
US Bancorp11,686$617.7K0.00%+2,327+24.9%Added
Public Employees Retirement Association of Colorado10,992$581.0K0.00%−226−2.0%Reduced
Profund Advisors LLC10,986$580.7K0.02%−769−6.5%Reduced
Wesbanco Bank Inc10,984$580.6K0.02%00.0%Unchanged
Aviva PLC10,748$568.1K0.00%−5,156−32.4%Reduced
Illinois Municipal Retirement Fund10,104$534.1K0.01%00.0%Unchanged
Weiss Asset Management LP10,075$532.6K0.01%−100,665−90.9%Reduced
Unique Wealth Strategies, LLC10,056$531.6K0.23%+10,056New
CIBC World Markets Corp9,999$528.5K0.00%+9,999New
Holocene Advisors, LP9,532$503.9K0.00%−4,870−33.8%Reduced
Tower Research Capital LLC (TRC)9,485$501.4K0.01%+6,379+205.4%Added
Jain Global LLC9,285$490.8K0.01%+9,285New
Diversify Advisory Services, LLC8,472$476.4K0.03%+8,472New
Alps Advisors Inc9,000$475.7K0.00%00.0%Unchanged
Advisors Asset Management, Inc.8,932$472.1K0.01%−86−1.0%Reduced
CWM, LLC8,938$472.0K0.00%+1,451+19.4%Added
Nations Financial Group Inc,8,925$471.8K0.03%+246+2.8%Added
Epoch Investment Partners, Inc.8,688$459.2K0.00%+8,688New
Great Valley Advisor Group, Inc.8,250$436.1K0.01%−300−3.5%Reduced
Quest Partners LLC8,222$434.6K0.06%−20,393−71.3%Reduced
Cambridge Investment Research Advisors, Inc.8,192$433.0K0.00%+683+9.1%Added
Mitsubishi UFJ Trust & Banking Corp8,159$431.3K0.00%+8,159New
Aigen Investment Management, LP8,126$429.5K0.08%−26,771−76.7%Reduced
Securian Asset Management, Inc8,056$425.8K0.01%−317−3.8%Reduced
Sanctuary Advisors, LLC6,910$423.0K0.00%+1,622+30.7%Added
First Hawaiian Bank7,830$413.9K0.01%00.0%Unchanged
Quantessence Capital LLC7,421$392.3K0.16%+7,421New
Quantinno Capital Management LP7,413$391.9K0.00%+1,213+19.6%Added
Bridgewater Associates, LP7,145$377.7K0.00%−54,003−88.3%Reduced
Evergreen Capital Management LLC7,099$375.3K0.01%+44+0.6%Added
Mackenzie Financial Corp7,081$374.3K0.00%−170−2.3%Reduced
Forum Financial Management, LP7,017$370.9K0.01%−1,001−12.5%Reduced
Allspring Global Investments Holdings, LLC6,891$368.7K0.00%−29,112−80.9%Reduced
Gibbs Wealth Management6,850$362.1K0.10%+6,850New
Greenwood Capital Associates LLC6,754$357.0K0.05%−76−1.1%Reduced
Crossmark Global Holdings, Inc.6,688$354.0K0.01%−10−0.1%Reduced
Saturna Capital CORP6,681$353.2K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.7,494$351.4K0.00%−8,300−52.6%Reduced
Atria Investments LLC6,362$336.3K0.00%+6,362New
Envestnet Portfolio Solutions, Inc.6,257$330.7K0.00%+6,257New
Mercer Global Advisors Inc6,075$321.1K0.00%−4,216−41.0%Reduced
Virtu Financial LLC6,032$319.0K0.02%−3,601−37.4%Reduced
Walleye Trading LLC5,941$314.0K0.01%+5,941New
M.E. Allison & Co., Inc.5,897$311.7K0.34%+5,897New
Equitable Trust Co5,775$305.3K0.02%+5,775New
Coldstream Capital Management Inc5,609$296.5K0.01%+324+6.1%Added
Arete Wealth Advisors, LLC5,578$295.0K0.02%+5,578New
Dakota Wealth Management5,515$291.5K0.01%+5,515New
Oppenheimer Asset Management Inc.5,496$290.5K0.00%+120+2.2%Added
CI Private Wealth, LLC5,098$269.5K0.00%+5,098New
MML Investors Services, LLC5,084$269.0K0.00%+5,084New
Lido Advisors, LLC5,007$264.7K0.00%+5,007New
Northwestern Mutual Wealth Management Co5,004$264.5K0.00%−1,821−26.7%Reduced
Rockland Trust Co4,996$264.1K0.01%00.0%Unchanged
Sciencast Management LP4,939$261.1K0.07%−42,197−89.5%Reduced
Brevan Howard Capital Management LP4,907$259.4K0.01%−62,201−92.7%Reduced
AE Wealth Management LLC4,884$258.2K0.00%+4,884New
PharVision Advisers, LLC4,778$252.6K0.21%+4,778New
Bank Julius Baer & Co. Ltd, Zurich4,321$252.0K0.00%+317+7.9%Added
Portside Wealth Group, LLC4,656$246.1K0.04%+4,656New
MeadowBrook Investment Advisors LLC4,620$244.2K0.22%00.0%Unchanged
Magnetar Financial LLC4,535$239.7K0.01%−5,042−52.6%Reduced
M&T Bank Corp4,412$233.2K0.00%+4,412New
Wealth Enhancement Advisory Services, LLC4,390$232.1K0.00%+4,390New
Shelton Capital Management4,265$225.4K0.01%−630−12.9%Reduced
Sequoia Financial Advisors, LLC4,233$223.8K0.00%+4,233New
Qsemble Capital Management, LP4,141$218.9K0.03%−70,769−94.5%Reduced
EverSource Wealth Advisors, LLC4,095$216.5K0.01%+3,978+3,400.0%Added
Gotham Asset Management, LLC4,092$216.3K0.00%−56,466−93.2%Reduced
Mirae Asset Global Investments Co., Ltd.3,968$215.2K0.00%+3,245+448.8%Added
KBC Group NV4,008$212.0K0.00%+1,419+54.8%Added
NJ State Employees Deferred Compensation Plan4,000$211.4K0.03%+4,000New
Nisa Investment Advisors, LLC3,985$210.6K0.00%−755−15.9%Reduced
Shell Asset Management Co3,903$206.0K0.01%00.0%Unchanged
Moody National Bank Trust Division3,848$203.4K0.02%+3,848New
Renaissance Technologies LLC3,800$200.9K0.00%+3,800New
HHM Wealth Advisors, LLC3,529$186.5K0.03%+29+0.8%Added
Covestor Ltd3,246$172.0K0.11%+833+34.5%Added
GAMMA Investing LLC3,137$165.8K0.01%+514+19.6%Added
Harvest Fund Management Co., Ltd3,629$134.0K0.01%+3,629New
Clearstead Advisors, LLC2,177$115.1K0.00%00.0%Unchanged
Quadrant Capital Group LLC2,037$107.7K0.01%−23−1.1%Reduced
Northwest Capital Management Inc2,000$105.7K0.05%00.0%Unchanged
Lindbrook Capital, LLC1,513$80.0K0.01%+166+12.3%Added
Ronald Blue Trust, Inc.1,452$76.8K0.00%−2,609−64.2%Reduced
Aster Capital Management (DIFC) Ltd1,385$73.2K0.03%+1,385New
MAI Capital Management1,325$70.0K0.00%+1,325New
GeoWealth Management, LLC1,291$68.2K0.00%+1,291New
Parallel Advisors, LLC1,215$64.2K0.00%+697+134.6%Added