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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, Q1 2022

Institutional positions in Rambus Inc as of Mar 31, 2022. 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
276
+20 vs. Q4 2021
Shares held
93.7M
−1.91M (−2.0%) vs. Q4 2021
Total value
$2.98B
+$178.1M (+6.4%) vs. Q4 2021
New holders
46
83 more added
Sold out
26
97 more reduced

2 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2021: 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 holdersQ1 2022: 276 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 heldQ1 2022: $2.98B
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, Q1 2022

Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q4 2021.

Institutions holding RMBS in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
State Board of Administration of Florida Retirement System62,147$1.98M0.00%+414+0.7%Added
MetLife Investment Management59,397$1.89M0.01%+21,446+56.5%Added
Victory Capital Management Inc73,355$1.83M0.00%+23,340+46.7%Added
Ziegler Capital Management, LLC56,392$1.80M0.08%−6,300−10.0%Reduced
Allspring Global Investments Holdings, LLC52,656$1.68M0.00%+371+0.7%Added
Cubist Systematic Strategies, LLC52,490$1.67M0.01%+22,888+77.3%Added
Canada Pension Plan Investment Board52,000$1.66M0.00%+52,000New
Truist Financial Corp51,692$1.65M0.00%−263−0.5%Reduced
Martingale Asset Management L P50,362$1.61M0.02%−7,508−13.0%Reduced
Amalgamated Bank49,191$1.57M0.01%−2,302−4.5%Reduced
Amalgamated Financial Corp.49,191$1.57M0.01%+49,191New
Burney Co47,908$1.53M0.07%+47,908New
STRS Ohio47,700$1.52M0.01%+14,800+45.0%Added
Yorktown Management & Research Co Inc46,400$1.48M1.26%00.0%Unchanged
Raymond James Financial Services Advisors, Inc.45,241$1.44M0.00%−7,935−14.9%Reduced
Manufacturers Life Insurance Company, The44,557$1.42M0.00%−10,426−19.0%Reduced
Louisiana State Employees Retirement System53,200$1.42M0.03%+300+0.6%Added
Western Wealth Management, LLC44,038$1.40M0.07%+44,038New
AQR Capital Management LLC43,951$1.40M0.00%−16,157−26.9%Reduced
Maryland State Retirement & Pension System43,856$1.40M0.04%+256+0.6%Added
Price T Rowe Associates Inc43,588$1.39M0.00%+13,748+46.1%Added
Voya Investment Management LLC42,466$1.35M0.00%+568+1.4%Added
Oregon Public Employees Retirement Fund41,428$1.32M0.01%−511−1.2%Reduced
Guggenheim Capital LLC40,345$1.29M0.01%+1,056+2.7%Added
Robeco Institutional Asset Management B.V.38,401$1.23M0.00%00.0%Unchanged
ETF Managers Group, LLC35,751$1.16M0.02%+604+1.7%Added
Avantax Advisory Services, Inc.34,727$1.11M0.02%+34,727New
Ensign Peak Advisors, Inc34,117$1.09M0.00%00.0%Unchanged
ExodusPoint Capital Management, LP33,928$1.08M0.02%+14,792+77.3%Added
Bank of Montreal33,323$1.08M0.00%+3,855+13.1%Added
HSBC Holdings PLC32,652$1.05M0.00%+32,652New
Teachers Retirement System of the State of Kentucky32,312$1.03M0.01%00.0%Unchanged
Envestnet Asset Management Inc32,191$1.03M0.00%+4,670+17.0%Added
Winton Group Ltd30,479$972.0K0.05%+14,536+91.2%Added
Ameritas Advisory Services, LLC29,810$951.0K0.03%+29,810New
Arizona State Retirement System29,563$943.0K0.01%+254+0.9%Added
AlphaCrest Capital Management LLC29,099$928.0K0.05%+7,303+33.5%Added
PDT Partners, LLC28,005$893.0K0.08%+5,589+24.9%Added
Citadel Advisors LLC27,756$885.0K0.00%−3,671−11.7%Reduced
First Hawaiian Bank27,560$879.0K0.03%00.0%Unchanged
Campbell & CO Investment Adviser LLC26,821$855.0K0.23%+26,821New
Juncture Wealth Strategies, LLC25,141$802.0K0.38%+6,438+34.4%Added
Mitsubishi UFJ Trust & Banking Corp24,238$773.0K0.00%−932−3.7%Reduced
Graham Capital Management, L.P.24,254$773.0K0.03%+14,390+145.9%Added
ProShare Advisors LLC24,156$771.0K0.00%−2,967−10.9%Reduced
Janus Henderson Group PLC23,097$737.0K0.00%+60.0%Added
Teacher Retirement System of Texas22,530$718.0K0.00%+1,569+7.5%Added
Engineers Gate Manager LP20,830$664.0K0.03%+10,210+96.1%Added
JB Capital LLC20,696$660.0K0.06%+2,693+15.0%Added
Handelsbanken Fonder AB18,597$593.0K0.00%−7,700−29.3%Reduced
Capital Fund Management S.A.18,346$585.1K0.02%+2,270+14.1%Added
CIBC World Markets Inc.18,016$575.0K0.00%+18,016New
BNC Wealth Management, LLC16,768$535.0K0.26%−137−0.8%Reduced
Cambridge Investment Research Advisors, Inc.16,230$518.0K0.00%+7,142+78.6%Added
Parallel Advisors, LLC16,007$517.0K0.02%+50+0.3%Added
Mutual of America Capital Management LLC15,759$503.0K0.01%+817+5.5%Added
Qube Research & Technologies Ltd15,740$502.0K0.00%−5,423−25.6%Reduced
Public Employees Retirement Association of Colorado15,619$498.0K0.00%−3,962−20.2%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)15,530$495.0K0.00%−2,597−14.3%Reduced
Hanseatic Management Services Inc15,355$490.0K0.84%+15,355New
Jane Street Group, LLC13,767$439.0K0.00%+13,767New
Everence Capital Management Inc13,445$429.0K0.03%00.0%Unchanged
SG Americas Securities, LLC13,416$428.0K0.00%−113,463−89.4%Reduced
Redwood Investment Management, LLC12,790$408.0K0.06%+12,790New
Group One Trading, L.P.12,585$401.0K0.01%−76,054−85.8%Reduced
IndexIQ Advisors LLC12,262$391.0K0.01%−9,462−43.6%Reduced
State of Wyoming11,759$375.0K0.19%+720+6.5%Added
Eqis Capital Management, Inc.11,561$369.0K0.03%−7,899−40.6%Reduced
Cetera Advisor Networks LLC11,400$364.0K0.00%−717−5.9%Reduced
Jefferies Group LLC11,000$350.8K0.01%+11,000New
CenterBook Partners LP10,564$337.0K0.12%+3,660+53.0%Added
Rockland Trust Co9,992$319.0K0.02%00.0%Unchanged
Creative Planning9,992$319.0K0.00%+2,000+25.0%Added
Quantamental Technologies LLC9,952$317.0K0.18%+9,952New
Sawtooth Solutions, LLC9,855$314.0K0.04%+9,855New
Crossmark Global Holdings, Inc.9,740$310.0K0.01%−80−0.8%Reduced
Cornerstone Investment Partners, LLC9,605$306.0K0.02%00.0%Unchanged
Wolverine Trading, LLC9,329$301.0K0.01%−4,689−33.4%Reduced
Miracle Mile Advisors, LLC9,301$297.0K0.01%00.0%Unchanged
AdvisorShares Investments LLC9,300$297.0K0.05%+9,300New
Raymond James & Associates9,165$292.0K0.00%−7,085−43.6%Reduced
Renaissance Technologies LLC9,100$290.0K0.00%−287,386−96.9%Reduced
Profund Advisors LLC9,090$290.0K0.01%−953−9.5%Reduced
Susquehanna International Group, LLP8,768$280.0K0.00%−13,827−61.2%Reduced
Contravisory Investment Management, Inc.8,732$278.0K0.08%−1,306−13.0%Reduced
Ameritas Investment Partners, Inc.8,317$265.0K0.01%00.0%Unchanged
Pictet Asset Management SA8,104$258.0K0.00%00.0%Unchanged
US Bancorp7,884$251.0K0.00%−551−6.5%Reduced
Meritage Portfolio Management7,859$251.0K0.02%+7,859New
Ferris Capital, LLC7,834$250.0K0.06%00.0%Unchanged
New Century Advisors, LLC7,760$247.0K0.21%+1,190+18.1%Added
First Citizens Bank & Trust Co7,654$244.0K0.01%−114−1.5%Reduced
American Century Companies Inc7,207$230.0K0.00%+7,207New
Penserra Capital Management LLC7,101$226.0K0.01%+571+8.7%Added
Metropolitan Life Insurance Co6,985$222.8K0.01%−21,446−75.4%Reduced
Shelton Capital Management6,889$220.0K0.01%−337−4.7%Reduced
Formidable Asset Management, LLC6,845$218.0K0.04%−450−6.2%Reduced
Advisor Partners LLC6,533$208.0K0.01%+6,533New
Aaron Wealth Advisors6,601$207.0K0.00%+6,601New
Virtu Financial LLC6,467$206.0K0.02%+6,467New