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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.

Q2 2025 vs. Q1 2025

How the institutions holding Rambus Inc changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of RMBS: Q1 2025 compared with Q2 2025
MeasureQ1 2025Of which not filed for Q2 2025Q2 2025Change
Holders4133459+49
Shares96.7M303.8K97.1M+715.5K (+0.7%)
Value$5.01B$15.7M$6.22B+$1.23B (+24.5%)

3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (88)

Institutions that held Rambus Inc at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to RMBS in Q2 2025
InstitutionSharesValue% of portfolio
Swedbank AB1,700,000$108.8M0.12%
T. Rowe Price Investment Management, Inc.312,952$20.0M0.01%
Glenmede Investment Management, LP297,440$19.0M0.10%
Loomis Sayles & Co L P220,228$14.1M0.02%
Schroder Investment Management Group130,621$8.36M0.01%
Stanley-Laman Group, Ltd.103,312$6.61M0.98%
Polar Asset Management Partners Inc.100,170$6.41M0.16%
Jump Financial, LLC99,200$6.35M0.08%
Cinctive Capital Management LP65,677$4.20M0.23%
Baird Financial Group, Inc.54,805$3.51M0.01%
Jain Global LLC43,120$2.76M0.04%
Magnetar Financial LLC36,439$2.33M0.01%
AXA S.A.25,227$1.62M0.00%
Aurora Investment Counsel23,311$1.49M0.79%
DnB Asset Management AS23,063$1.48M0.01%
Scott Marsh Financial, LLC20,362$1.30M0.48%
Centiva Capital, LP19,796$1.27M0.08%
Connor, Clark & Lunn Investment Management Ltd.19,142$1.23M0.00%
Zacks Investment Management17,928$1.15M0.01%
Fox Run Management, L.L.C.16,033$1.03M0.17%
Campbell & CO Investment Adviser LLC14,285$914.5K0.06%
Caisse de Depot Et Placement du Quebec13,379$856.5K0.00%
Bokf, NA10,764$689.1K0.01%
Tudor Investment Corp Et Al10,689$684.3K0.01%
Neo Ivy Capital Management9,740$623.6K0.20%
Graham Capital Management, L.P.9,515$609.1K0.02%
Horizon Investments, LLC9,158$586.3K0.01%
Oak Grove Capital LLC8,100$518.6K0.12%
Keebeck Wealth Management, LLC7,852$502.7K0.07%
Wolverine Trading, LLC7,522$481.4K0.01%
Financiere des Professionnels - Fonds d,investissement inc.7,317$468.4K0.03%
Private Advisor Group, LLC6,407$410.2K0.00%
TCG Advisory Services, LLC6,300$403.3K0.01%
Penserra Capital Management LLC6,263$400.0K0.01%
Counterpoint Mutual Funds LLC6,041$386.7K0.03%
Dynamic Technology Lab Private Ltd5,960$382.0K0.05%
MQS Management LLC5,612$359.3K0.20%
Readystate Asset Management LP5,275$337.7K0.01%
Prosperity Wealth Management, Inc.5,245$335.8K0.12%
Gotham Asset Management, LLC4,933$315.8K0.00%
Keybank National Association4,715$301.9K0.00%
Brinker Capital Investments, LLC4,673$299.2K0.00%
TD Asset Management Inc4,490$287.4K0.00%
City Center Advisors, LLC4,110$263.1K0.28%
ZWJ Investment Counsel Inc4,102$262.6K0.01%
Merit Financial Group, LLC4,085$261.5K0.00%
Ethic Inc.4,036$258.3K0.00%
Colony Group, LLC3,955$253.2K0.00%
Oarsman Capital, Inc.3,900$249.7K0.04%
Meeder Advisory Services, Inc.3,717$238.0K0.01%
Axq Capital, LP3,694$236.5K0.08%
Callan Family Office, LLC3,642$233.2K0.01%
Principal Street Partners, LLC3,488$223.3K0.02%
Journey Strategic Wealth LLC3,439$220.2K0.01%
Forum Financial Management, LP3,430$219.6K0.00%
CIBC Asset Management Inc3,410$218.3K0.00%
O'Shaughnessy Asset Management, LLC3,334$213.4K0.00%
Fifth Third Wealth Advisors LLC3,296$211.0K0.01%
Cresset Asset Management, LLC3,282$210.1K0.00%
Ashton Thomas Private Wealth, LLC3,237$207.2K0.01%
New Insight Wealth Advisors3,236$207.2K0.09%
Capstone Investment Advisors, LLC3,194$204.5K0.00%
Global Retirement Partners, LLC1,926$123.3K0.00%
Stonehage Fleming Financial Services Holdings Ltd1,634$104.6K0.00%
Quantbot Technologies LP1,592$101.9K0.00%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,089$70.0K0.00%
Meeder Asset Management Inc679$43.5K0.00%
Essential Partners LLC237$15.2K0.01%
Annis Gardner Whiting Capital Advisors, LLC215$13.8K0.00%
Cullen/Frost Bankers, Inc.192$12.3K0.00%
Kozak & Associates, Inc.100$6.48K0.00%
Ameritas Advisory Services, LLC100$6.40K0.00%
TD Waterhouse Canada Inc.75$4.81K0.00%
Fortitude Family Office, LLC63$4.03K0.00%
Brown Brothers Harriman & Co56$3.58K0.00%
Curio Wealth, LLC52$3.33K0.00%
Legacy Investment Solutions, LLC33$2.11K0.00%
Toth Financial Advisory Corp28$1.79K0.00%
Capital A Wealth Management, LLC25$1.71K0.02%
Bogart Wealth, LLC21$1.34K0.00%
Capital Advisors, Ltd. LLC10$1.00K0.00%
Arlington Trust Co LLC10$6400.00%
Twin Peaks Wealth Advisors, LLC7$5350.00%
Raleigh Capital Management Inc.8$5120.00%
DecisionPoint Financial, LLC5$3210.00%
IMA Wealth, Inc.4$2560.00%
Rialto Wealth Management, LLC3$1930.00%
Pinpoint Asset Management (Singapore) Pte. Ltd.1$640.00%

Sold out (39)

Institutions that held Rambus Inc at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of RMBS in Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Vaughan Nelson Investment Management, L.P.562,813$29.1M
Schonfeld Strategic Advisors LLC203,645$10.5M
Corebridge Financial, Inc.169,347$8.77M
Ellsworth Advisors, LLC74,709$3.87M
Barington Capital Group, L.P.55,000$2.85M
Lisanti Capital Growth, LLC51,925$2.69M
ExodusPoint Capital Management, LP38,249$1.98M
Westpac Banking Corp26,843$1.39M
Renaissance Technologies LLC22,900$1.19M
Trexquant Investment LP16,810$870.3K
Twin Tree Management, LP16,172$837.3K
Legato Capital Management LLC11,575$599.3K
K2 Principal Fund, L.P.11,520$596.5K
Pinebridge Investments, L.P.10,601$548.9K
Ieq Capital, LLC10,485$542.9K
Unique Wealth Strategies, LLC9,717$503.1K
United Services Automobile Association7,171$385.1K
Equitable Trust Co6,870$355.7K
EntryPoint Capital, LLC6,558$339.5K
Oppenheimer Asset Management Inc.5,762$298.3K
Summit Global Investments5,005$259.0K
Fiduciary Financial Group, LLC5,498$254.2K
Allianz Asset Management GmbH4,700$243.3K
Snowden Capital Advisors LLC4,341$224.8K
Ontario Teachers Pension Plan Board4,135$214.1K
Jefferies Financial Group Inc.4,028$208.6K
Headlands Technologies LLC2,160$111.8K
Harvest Fund Management Co., Ltd2,003$104.0K
McIlrath & Eck, LLC804$41.6K
V-Square Quantitative Management LLC508$26.3K
Eq Wealth Advisors, LLC285$14.8K
Clear Street Markets LLC223$11.5K
Mather Group, LLC.113$5.85K
Cape Investment Advisory, Inc.88$4.56K
Stephens Consulting, LLC30$1.55K
TD Private Client Wealth LLC16$828
Global Financial Private Client, LLC9$466
TD Capital Management LLC5$259
Highline Wealth Partners LLC3$155

Not filed for Q2 2025 yet (3)

Institutions that held Rambus Inc at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding RMBS in Q1 2025 that haven't filed for Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Glenmede Trust Co NA301,612$15.6M
Lindbrook Capital, LLC2,169$112.3K
Pinpoint Asset Management Ltd1$52