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 2023
Institutional positions in Rambus Inc as of Mar 31, 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
- 337
- +36 vs. Q4 2022
- Shares held
- 93.7M
- +2.10M (+2.3%) vs. Q4 2022
- Total value
- $4.81B
- +$1.55B (+47.4%) vs. Q4 2022
- New holders
- 71
- 91 more added
- Sold out
- 35
- 136 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 621 | $13.3B |
| Q1 2026 | 557 | $8.83B |
| Q4 2025 | 554 | $9.18B |
| Q3 2025 | 513 | $10.3B |
| Q2 2025 | 459 | $6.22B |
| Q1 2025 | 413 | $5.01B |
| Q4 2024 | 395 | $5.03B |
| Q3 2024 | 376 | $3.94B |
| Q2 2024 | 363 | $5.64B |
| Q1 2024 | 375 | $6.00B |
| Q4 2023 | 400 | $6.62B |
| Q3 2023 | 350 | $5.48B |
| Q2 2023 | 393 | $6.14B |
| Q1 2023 | 337 | $4.81B |
| Q4 2022 | 303 | $3.27B |
| Q3 2022 | 241 | $2.38B |
| Q2 2022 | 253 | $2.07B |
| Q1 2022 | 276 | $2.98B |
| Q4 2021 | 258 | $2.80B |
| Q3 2021 | 236 | $2.07B |
| Q2 2021 | 219 | $2.30B |
| Q1 2021 | 213 | $1.86B |
Institutions, Q1 2023
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Inceptionr LLC | 10,718 | $549.4K | 0.18% | +10,718 | New |
| Cetera Advisor Networks LLC | 10,713 | $549.1K | 0.00% | −1,281−10.7% | Reduced |
| Mariner, LLC | 10,641 | $545.0K | 0.00% | −1,799−14.5% | Reduced |
| Cubist Systematic Strategies, LLC | 10,118 | $518.6K | 0.00% | −118,183−92.1% | Reduced |
| Verition Fund Management LLC | 10,010 | $513.1K | 0.01% | +10,010 | New |
| Contravisory Investment Management, Inc. | 9,970 | $511.1K | 0.14% | −141−1.4% | Reduced |
| New York Life Investment Management LLC | 9,904 | $507.7K | 0.01% | −7,886−44.3% | Reduced |
| MQS Management LLC | 9,811 | $502.9K | 0.32% | −41−0.4% | Reduced |
| Truvestments Capital LLC | 9,566 | $490.4K | 0.26% | +2,284+31.4% | Added |
| Seven Eight Capital, LP | 9,556 | $489.8K | 0.10% | +2,895+43.5% | Added |
| Cambridge Investment Research Advisors, Inc. | 9,098 | $466.0K | 0.00% | −766−7.8% | Reduced |
| KBC Group NV | 8,999 | $461.0K | 0.00% | −640−6.6% | Reduced |
| Great Lakes Advisors, LLC | 8,707 | $446.3K | 0.00% | −414,643−97.9% | Reduced |
| CI Private Wealth, LLC | 8,696 | $445.8K | 0.00% | +8,696 | New |
| Avantax Planning Partners, Inc. | 8,600 | $440.8K | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 8,585 | $440.1K | 0.02% | +31+0.4% | Added |
| Meritage Portfolio Management | 8,499 | $436.0K | 0.03% | +354+4.3% | Added |
| CSS LLC | 8,500 | $435.7K | 0.03% | +8,500 | New |
| Kiwi Wealth Investments Limited Partnership | 8,459 | $433.6K | 0.03% | −13,318−61.2% | Reduced |
| Crossmark Global Holdings, Inc. | 8,441 | $433.0K | 0.01% | −672−7.4% | Reduced |
| JustInvest LLC | 7,973 | $408.7K | 0.01% | +7,973 | New |
| Mercer Global Advisors Inc | 7,969 | $408.0K | 0.00% | +803+11.2% | Added |
| Harvest Fund Management Co., Ltd | 7,918 | $406.0K | 0.09% | −4,483−36.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 7,537 | $386.3K | 0.00% | −11,770−61.0% | Reduced |
| Buckingham Strategic Partners | 7,473 | $383.1K | 0.02% | −419−5.3% | Reduced |
| MML Investors Services, LLC | 7,254 | $372.0K | 0.00% | −36−0.5% | Reduced |
| Woodline Partners LP | 6,958 | $356.7K | 0.01% | +6,958 | New |
| Sequoia Financial Advisors, LLC | 6,874 | $352.4K | 0.01% | +531+8.4% | Added |
| Evergreen Capital Management LLC | 6,759 | $346.5K | 0.02% | +485+7.7% | Added |
| Capital CS Group, LLC | 6,426 | $329.4K | 0.31% | +6,426 | New |
| Assenagon Asset Management S.A. | 6,347 | $325.3K | 0.00% | −160,998−96.2% | Reduced |
| Profund Advisors LLC | 6,332 | $324.6K | 0.02% | −430−6.4% | Reduced |
| Shelton Capital Management | 6,330 | $324.5K | 0.01% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 6,306 | $323.2K | 0.00% | −55−0.9% | Reduced |
| Eqis Capital Management, Inc. | 6,300 | $323.0K | 0.04% | −3,262−34.1% | Reduced |
| Xponance, Inc. | 6,193 | $317.5K | 0.00% | +72+1.2% | Added |
| E Fund Management Co., Ltd. | 5,775 | $296.0K | 0.02% | +5,775 | New |
| Metropolitan Life Insurance Co | 5,774 | $296.0K | 0.02% | −975−14.4% | Reduced |
| State of Wyoming | 5,639 | $289.1K | 0.09% | −14,573−72.1% | Reduced |
| Veriti Management LLC | 5,625 | $288.3K | 0.03% | −49−0.9% | Reduced |
| Pathstone Family Office, LLC | 4,412 | $283.3K | 0.00% | −9,898−69.2% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 5,469 | $280.3K | 0.00% | +5,469 | New |
| Bridgefront Capital, LLC | 5,417 | $277.7K | 0.17% | +5,417 | New |
| O'Shaughnessy Asset Management, LLC | 5,283 | $270.8K | 0.00% | +5,283 | New |
| Miracle Mile Advisors, LLC | 5,112 | $262.0K | 0.01% | +5,112 | New |
| Symmetry Peak Management LLC | 5,000 | $256.3K | 1.22% | +5,000 | New |
| Rockland Trust Co | 4,996 | $256.1K | 0.02% | +4,996 | New |
| Redwood Wealth Management Group, LLC | 4,983 | $255.4K | 0.29% | +4,983 | New |
| Bank of Nova Scotia | 4,942 | $253.3K | 0.00% | +4,942 | New |
| GWM Advisors LLC | 4,921 | $252.3K | 0.00% | +977+24.8% | Added |
| Cetera Advisors LLC | 4,820 | $247.1K | 0.00% | +4,820 | New |
| Belpointe Asset Management LLC | 4,725 | $242.2K | 0.01% | −3−0.1% | Reduced |
| Migdal Insurance & Financial Holdings Ltd. | 4,796 | $242.0K | 0.01% | +4,796 | New |
| Franklin Resources Inc | 4,702 | $241.0K | 0.00% | −992−17.4% | Reduced |
| Martingale Asset Management L P | 4,658 | $238.8K | 0.00% | −2,005−30.1% | Reduced |
| Simplex Trading, LLC | 4,591 | $235.0K | 0.01% | −1,443−23.9% | Reduced |
| Quantinno Capital Management LP | 4,468 | $229.0K | 0.02% | +4,468 | New |
| HSBC Holdings PLC | 4,428 | $226.0K | 0.00% | −21,748−83.1% | Reduced |
| Coldstream Capital Management Inc | 4,408 | $226.0K | 0.01% | +4,408 | New |
| Spire Wealth Management | 4,401 | $225.6K | 0.01% | +4,301+4,301.0% | Added |
| Patriot Financial Group Insurance Agency, LLC | 4,401 | $225.6K | 0.05% | +4,401 | New |
| Associated Banc-Corp | 4,300 | $220.4K | 0.01% | +4,300 | New |
| Pinnacle Wealth Planning Services, Inc. | 4,274 | $219.1K | 0.04% | −3,659−46.1% | Reduced |
| US Bancorp | 4,264 | $218.6K | 0.00% | +594+16.2% | Added |
| NJ State Employees Deferred Compensation Plan | 4,000 | $205.0K | 0.03% | +4,000 | New |
| Cullen/Frost Bankers, Inc. | 3,809 | $195.2K | 0.00% | −108−2.8% | Reduced |
| Nisa Investment Advisors, LLC | 3,662 | $188.0K | 0.00% | −470−11.4% | Reduced |
| HHM Wealth Advisors, LLC | 3,500 | $179.4K | 0.04% | 00.0% | Unchanged |
| DuPont Capital Management Corp | 3,497 | $179.3K | 0.01% | +3,497 | New |
| USA Financial Portformulas Corp | 3,227 | $165.4K | 0.27% | +3,227 | New |
| Quadrant Capital Group LLC | 2,798 | $143.4K | 0.01% | +126+4.7% | Added |
| Tower Research Capital LLC (TRC) | 2,719 | $139.0K | 0.00% | +1,842+210.0% | Added |
| Northwestern Mutual Wealth Management Co | 2,700 | $138.4K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 2,354 | $121.0K | 0.00% | −72,517−96.9% | Reduced |
| Virtus Fund Advisers, LLC | 2,327 | $119.3K | 0.84% | 00.0% | Unchanged |
| CWM, LLC | 2,313 | $119.0K | 0.00% | −298−11.4% | Reduced |
| Kapitalo Investimentos Ltda | 2,063 | $105.7K | 0.03% | +2,063 | New |
| Quantbot Technologies LP | 1,853 | $95.0K | 0.01% | +1,853 | New |
| Archer Investment Corp | 2,148 | $95.0K | 0.04% | +1,780+483.7% | Added |
| Householder Group Estate & Retirement Specialist, LLC | 1,759 | $90.0K | 0.03% | +1,759 | New |
| Leonteq Securities AG | 1,345 | $68.9K | 0.01% | +1,345 | New |
| Clearstead Advisors, LLC | 1,315 | $67.4K | 0.00% | 00.0% | Unchanged |
| Park Place Capital Corp | 1,308 | $67.0K | 0.02% | −499−27.6% | Reduced |
| Lindbrook Capital, LLC | 1,159 | $59.4K | 0.01% | 00.0% | Unchanged |
| Bokf, NA | 1,065 | $54.6K | 0.00% | +1,065 | New |
| Versant Capital Management, Inc | 876 | $44.9K | 0.02% | +72+9.0% | Added |
| Signaturefd, LLC | 755 | $38.7K | 0.00% | −182−19.4% | Reduced |
| Baillie Gifford & Co | 740 | $37.9K | 0.00% | +110+17.5% | Added |
| Orion Capital Management LLC | 703 | $36.0K | 0.02% | +703 | New |
| Altshuler Shaham Ltd | 692 | $35.5K | 0.00% | −224−24.5% | Reduced |
| Parallel Advisors, LLC | 642 | $32.9K | 0.00% | +331+106.4% | Added |
| WealthPLAN Partners, LLC | 600 | $30.8K | 0.00% | +600 | New |
| Maryland Capital Advisors Inc. | 575 | $29.5K | 0.03% | 00.0% | Unchanged |
| Hollencrest Capital Management | 551 | $28.2K | 0.00% | +551 | New |
| CarsonAllaria Wealth Management, Ltd. | 550 | $28.2K | 0.02% | 00.0% | Unchanged |
| Proequities, Inc. | 540 | $27.7K | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. LLC | 500 | $26.0K | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 500 | $25.6K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 1,847 | $25.1K | 0.00% | −2,584−58.3% | Reduced |
| Advisory Services Network, LLC | 477 | $24.5K | 0.00% | −100−17.3% | Reduced |