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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, Q2 2023

Institutional positions in Rambus Inc as of Jun 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
393
+58 vs. Q1 2023
Shares held
95.7M
+2.08M (+2.2%) vs. Q1 2023
Total value
$6.14B
+$1.33B (+27.5%) vs. Q1 2023
New holders
95
139 more added
Sold out
37
128 more reduced

2 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2023: 393 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 heldQ2 2023: $6.14B
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, Q2 2023

Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q1 2023.

Institutions holding RMBS in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Journey Strategic Wealth LLC3,554$228.1K0.01%+3,554New
Bailard, Inc.3,530$226.5K0.01%+3,530New
Cetera Investment Advisers3,514$225.5K0.00%+3,514New
Qube Research & Technologies Ltd3,495$224.3K0.00%+3,495New
Level Four Advisory Services, LLC3,477$223.1K0.01%+3,477New
Forum Financial Management, LP3,416$219.2K0.00%+3,416New
ISAM Funds (UK) Ltd3,415$219.1K0.20%+3,415New
CoreCap Advisors, LLC3,344$214.6K0.02%+3,344New
Cresset Asset Management, LLC3,298$211.6K0.00%+3,298New
Magnetar Financial LLC3,294$211.4K0.00%+3,294New
Mirabella Financial Services LLP3,240$207.9K0.02%+3,240New
Saturna Capital CORP3,199$205.3K0.00%+3,199New
CIBC Asset Management Inc3,177$203.9K0.00%+3,177New
USA Financial Portformulas Corp3,155$202.5K0.31%−72−2.2%Reduced
Harvest Fund Management Co., Ltd3,137$201.0K0.04%−4,781−60.4%Reduced
Spire Wealth Management3,005$192.8K0.01%−1,396−31.7%Reduced
SG Americas Securities, LLC2,966$190.0K0.00%+612+26.0%Added
Tower Research Capital LLC (TRC)2,849$182.8K0.01%+130+4.8%Added
Quadrant Capital Group LLC2,831$181.7K0.02%+33+1.2%Added
Cullen/Frost Bankers, Inc.2,611$167.5K0.00%−1,198−31.5%Reduced
Hollencrest Capital Management2,373$152.3K0.02%+1,822+330.7%Added
Nomura Asset Management Co Ltd2,186$140.3K0.00%+2,186New
Northwest Capital Management Inc2,000$128.3K0.05%+2,000New
Archer Investment Corp1,780$114.2K0.04%−368−17.1%Reduced
Migdal Insurance & Financial Holdings Ltd.1,449$91.0K0.00%−3,347−69.8%Reduced
Leonteq Securities AG1,345$86.3K0.01%00.0%Unchanged
Clearstead Advisors, LLC1,315$84.4K0.01%00.0%Unchanged
Lindbrook Capital, LLC1,159$74.4K0.01%00.0%Unchanged
Park Place Capital Corp1,081$69.4K0.02%−227−17.4%Reduced
Covestor Ltd966$62.0K0.05%+662+217.8%Added
Advisors Asset Management, Inc.958$61.5K0.00%−24,602−96.3%Reduced
Pacer Advisors, Inc.876$56.2K0.00%+876New
FNY Investment Advisers, LLC825$52.0K0.07%+825New
Signaturefd, LLC802$51.5K0.00%+47+6.2%Added
Versant Capital Management, Inc745$47.8K0.02%−131−15.0%Reduced
Virtus Fund Advisers, LLC705$45.2K0.32%−1,622−69.7%Reduced
Lazard Asset Management LLC638$40.0K0.00%+638New
WealthPLAN Partners, LLC600$38.5K0.01%00.0%Unchanged
Maryland Capital Advisors Inc.575$36.9K0.03%00.0%Unchanged
Parkside Financial Bank & Trust563$36.1K0.01%+142+33.7%Added
Proequities, Inc.542$34.8K0.00%+2+0.4%Added
Bartlett & Co. Wealth Management LLC500$32.1K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec500$32.1K0.00%+500New
Bartlett & Co. LLC500$32.0K0.00%00.0%Unchanged
Penserra Capital Management LLC496$31.0K0.00%−32,367−98.5%Reduced
Parallel Advisors, LLC478$30.7K0.00%−164−25.5%Reduced
Altshuler Shaham Ltd434$27.9K0.00%−258−37.3%Reduced
Riggs Asset Managment Co. Inc.400$25.7K0.01%00.0%Unchanged
Credit Agricole S A347$22.3K0.00%+347New
TD Private Client Wealth LLC337$21.6K0.00%−107−24.1%Reduced
Massmutual Trust Co FSB317$20.3K0.00%+44+16.1%Added
Bessemer Group Inc308$20.0K0.00%+88+40.0%Added
Tradition Wealth Management, LLC300$19.0K0.00%00.0%Unchanged
Tradewinds Capital Management, LLC296$19.0K0.01%00.0%Unchanged
IFP Advisors, Inc1,366$18.6K0.00%−481−26.0%Reduced
Fifth Third Bancorp282$18.1K0.00%+25+9.7%Added
Allworth Financial LP248$15.9K0.00%+6+2.5%Added
Quarry LP205$13.2K0.01%+205New
First Horizon Advisors, Inc.203$13.0K0.00%00.0%Unchanged
CarsonAllaria Wealth Management, Ltd.200$12.8K0.01%−350−63.6%Reduced
Fairfield, Bush & Co.200$12.8K0.00%+200New
V-Square Quantitative Management LLC193$12.4K0.01%+193New
Ronald Blue Trust, Inc.245$12.0K0.00%+223+1,013.6%Added
Psagot Value Holdings Ltd. / (Israel)198$12.0K0.01%+198New
Coppell Advisory Solutions LLC147$9.41K0.00%+147New
Key Financial Inc137$8.79K0.00%+137New
Raleigh Capital Management Inc.134$8.60K0.00%+134New
Private Trust Co NA133$8.54K0.00%+53+66.3%Added
JFS Wealth Advisors, LLC121$7.76K0.00%00.0%Unchanged
Huntington National Bank120$7.70K0.00%+119+11,900.0%Added
Anchor Investment Management, LLC117$7.51K0.00%+117New
EverSource Wealth Advisors, LLC92$5.90K0.00%+4+4.5%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC87$5.58K0.00%+87New
Farmers & Merchants Investments Inc84$5.39K0.00%00.0%Unchanged
Valley National Advisers Inc50$4.00K0.00%00.0%Unchanged
Glassman Wealth Services56$3.59K0.00%00.0%Unchanged
Global Retirement Partners, LLC55$3.53K0.00%−17−23.6%Reduced
Horan Securities, Inc.52$3.34K0.00%00.0%Unchanged
West Tower Group, LLC50$3.21K0.00%+50New
Bell Investment Advisors, Inc49$3.15K0.00%+8+19.5%Added
Farther Finance Advisors, LLC33$2.12K0.00%+2+6.5%Added
Toth Financial Advisory Corp30$1.93K0.00%+30New
CGC Financial Services, LLC25$1.60K0.00%+25New
Carolinas Wealth Consulting LLC23$1.50K0.00%+23New
SJS Investment Consulting Inc.23$1.48K0.00%−3−11.5%Reduced
Harbour Investments, Inc.23$1.48K0.00%−9−28.1%Reduced
Venturi Wealth Management, LLC22$1.41K0.00%+22New
AdvisorNet Financial, Inc20$1.28K0.00%−3−13.0%Reduced
Disciplined Investments, LLC18$1.16K0.00%00.0%Unchanged
Albion Financial Group13$8350.00%+13New
Plante Moran Financial Advisors, LLC10$6420.00%+10New
Abound Wealth Management8$5140.00%+8New
Tfo-TDC, LLC4$2570.00%00.0%Unchanged
CloudAlpha Capital Management Limited/Hong Kong0$00.00%−272,700−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−216,563−100.0%Sold out
Cinctive Capital Management LP0$00.00%−149,230−100.0%Sold out
Winton Group Ltd0$00.00%−70,722−100.0%Sold out
Squarepoint Ops LLC0$00.00%−54,751−100.0%Sold out
HRT Financial LP0$00.00%−42,737−100.0%Sold out
Group One Trading, L.P.0$00.00%−31,709−100.0%Sold out