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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.

Q1 2023 vs. Q4 2022

How the institutions holding Rambus Inc changed between Q4 2022 and Q1 2023.

All holders in Q1 2023All holders in Q4 2022

13F holders of RMBS: Q4 2022 compared with Q1 2023
MeasureQ4 2022Of which not filed for Q1 2023Q1 2023Change
Holders3032337+36
Shares91.6M65.3K93.7M+2.10M (+2.3%)
Value$3.27B$2.57M$4.81B+$1.55B (+47.4%)

2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (71)

Institutions that held Rambus Inc at the end of Q1 2023 but not at the end of Q4 2022.

Institutions new to RMBS in Q1 2023
InstitutionSharesValue% of portfolio
Whale Rock Capital Management LLC763,470$39.1M0.86%
First Republic Investment Management, Inc.737,322$37.8M0.08%
Swedbank AB300,000$15.4M0.03%
CloudAlpha Capital Management Limited/Hong Kong272,700$14.0M2.52%
Summit Partners Public Asset Management, LLC261,818$13.4M0.75%
Cinctive Capital Management LP149,230$7.65M0.28%
California Public Employees Retirement System113,749$5.83M0.01%
Walleye Trading LLC109,895$5.63M0.20%
Bridgeway Capital Management, LLC92,200$4.73M0.13%
Castleark Management LLC66,270$3.40M0.17%
Empowered Funds, LLC63,409$3.25M0.19%
Twin Tree Management, LP62,034$3.18M0.09%
Tudor Investment Corp Et Al58,387$2.99M0.06%
Concentric Capital Strategies, LP52,372$2.68M0.90%
Emerald Advisers, LLC51,463$2.64M0.13%
Vident Investment Advisory, LLC49,676$2.55M0.08%
Jump Financial, LLC44,784$2.30M0.09%
Emerald Mutual Fund Advisers Trust36,386$1.87M0.11%
Caption Management, LLC35,744$1.83M0.39%
Penserra Capital Management LLC32,863$1.68M0.03%
Syntal Capital Partners, LLC32,405$1.66M0.61%
Raymond James & Associates23,017$1.18M0.00%
Ergoteles LLC22,148$1.14M0.04%
Jennison Associates LLC21,204$1.09M0.00%
Wolverine Trading, LLC19,734$997.0K0.03%
Prudential PLC15,758$807.8K0.01%
National Asset Management, Inc.15,483$793.7K0.02%
Amundi14,727$723.4K0.00%
Fox Run Management, L.L.C.12,546$643.1K0.21%
National Bank of Canada11,985$614.5K0.00%
Inceptionr LLC10,718$549.4K0.18%
Verition Fund Management LLC10,010$513.1K0.01%
CI Private Wealth, LLC8,696$445.8K0.00%
CSS LLC8,500$435.7K0.03%
JustInvest LLC7,973$408.7K0.01%
Woodline Partners LP6,958$356.7K0.01%
Capital CS Group, LLC6,426$329.4K0.31%
E Fund Management Co., Ltd.5,775$296.0K0.02%
Raymond James Financial Services Advisors, Inc.5,469$280.3K0.00%
Bridgefront Capital, LLC5,417$277.7K0.17%
O'Shaughnessy Asset Management, LLC5,283$270.8K0.00%
Miracle Mile Advisors, LLC5,112$262.0K0.01%
Symmetry Peak Management LLC5,000$256.3K1.22%
Rockland Trust Co4,996$256.1K0.02%
Redwood Wealth Management Group, LLC4,983$255.4K0.29%
Bank of Nova Scotia4,942$253.3K0.00%
Cetera Advisors LLC4,820$247.1K0.00%
Migdal Insurance & Financial Holdings Ltd.4,796$242.0K0.01%
Quantinno Capital Management LP4,468$229.0K0.02%
Coldstream Capital Management Inc4,408$226.0K0.01%
Patriot Financial Group Insurance Agency, LLC4,401$225.6K0.05%
Associated Banc-Corp4,300$220.4K0.01%
NJ State Employees Deferred Compensation Plan4,000$205.0K0.03%
DuPont Capital Management Corp3,497$179.3K0.01%
USA Financial Portformulas Corp3,227$165.4K0.27%
Kapitalo Investimentos Ltda2,063$105.7K0.03%
Quantbot Technologies LP1,853$95.0K0.01%
Householder Group Estate & Retirement Specialist, LLC1,759$90.0K0.03%
Leonteq Securities AG1,345$68.9K0.01%
Bokf, NA1,065$54.6K0.00%
Orion Capital Management LLC703$36.0K0.02%
WealthPLAN Partners, LLC600$30.8K0.00%
Hollencrest Capital Management551$28.2K0.00%
Cutler Group LP470$24.0K0.00%
Ameritas Advisory Services, LLC400$20.5K0.00%
Bessemer Group Inc220$11.0K0.00%
First Horizon Advisors, Inc.203$10.4K0.00%
Ancora Advisors, LLC107$5.47K0.00%
Values First Advisors, Inc.104$5.34K0.00%
Private Trust Co NA80$4.10K0.00%
Ronald Blue Trust, Inc.22$1.00K0.00%

Sold out (35)

Institutions that held Rambus Inc at the end of Q4 2022 and filed for Q1 2023 without it.

Not filed for Q1 2023 yet (2)

Institutions that held Rambus Inc at the end of Q4 2022 and haven't filed a 13F for Q1 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding RMBS in Q4 2022 that haven't filed for Q1 2023
InstitutionShares, Q4 2022Value, Q4 2022
Comerica Bank65,236$2.57M
Trustcore Financial Services, LLC52$1.86K