RAMBUS INC (RMBS) Institutional Ownership Changes & 13F Activity

RAMBUS INC (RMBS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Sequoia Financial Advisors, Polen Capital Management, Renaissance Technologies LLC, and Lountzis Asset Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Sequoia Financial AdvisorsBuy3447,878$677,745
Q4 2025Sequoia Financial AdvisorsBuy1,8787,534$692,300
Q3 2025Sequoia Financial AdvisorsBuy3595,656$589,355
Q2 2025Polen Capital ManagementSell-88,98220,135$1,289,043
Q2 2025Sequoia Financial AdvisorsBuy2565,297$339,114
Q1 2025Renaissance Technologies LLCBuy19,10022,900$1,185,648
Q1 2025Polen Capital ManagementBuy9,858109,117$5,649,518
Q1 2025Sequoia Financial AdvisorsBuy8085,041$260,998
Q4 2024Renaissance Technologies LLCSell-307,8863,800$200,868
Q4 2024Polen Capital ManagementBuy43,10999,259$5,246,822
Q4 2024Sequoia Financial AdvisorsSell-6354,233$223,757
Q3 2024Polen Capital ManagementBuy56,15056,150$2,370,645
Q2 2024Sequoia Financial AdvisorsSell-1,1104,868$286,044
Q1 2024Sequoia Financial AdvisorsSell-4935,978$369,501
Q4 2023Sequoia Financial AdvisorsSell-6786,471$441,646
Q3 2023Sequoia Financial AdvisorsBuy3437,149$398,843
Q2 2023Renaissance Technologies LLCBuy53,700311,686$20,001
Q2 2023Sequoia Financial AdvisorsSell-686,806$436,742
Q1 2023Renaissance Technologies LLCBuy206,486257,986$13,224
Q1 2023Sequoia Financial AdvisorsBuy5316,874$352,362
Q4 2022Sequoia Financial AdvisorsBuy6,3436,343$227,206
Q4 2022Renaissance Technologies LLCSell-4,60051,500$1,845
Q3 2022Renaissance Technologies LLCSell-149,28656,100$1,426
Q2 2022Renaissance Technologies LLCBuy196,286205,386$4,414
Q1 2022Renaissance Technologies LLCSell-287,3869,100$290
Q4 2021Renaissance Technologies LLCBuy87,626296,486$8,714
Q3 2021Renaissance Technologies LLCSell-760,200208,860$4,637
Q3 2021Lountzis Asset ManagementBuy450450$9,990
Q2 2021Renaissance Technologies LLCSell-555,900969,060$22,976
Q1 2021Renaissance Technologies LLCSell-1,046,2001,524,960$29,645

Frequently asked questions about RMBS activity

  • Which institutional owners are buying RMBS?

    Institutional owners buying RMBS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in RMBS activity?

    "Buy" means an investor increased their reported position in RMBS compared to the prior reporting period. This reflects growing exposure to RAMBUS INC (RMBS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in RMBS increasing?

    Institutional interest in RMBS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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