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 2025
Institutional positions in Rambus Inc as of Mar 31, 2025. 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
- 413
- +24 vs. Q4 2024
- Shares held
- 96.7M
- +4.72M (+5.1%) vs. Q4 2024
- Total value
- $5.01B
- +$145.7M (+3.0%) vs. Q4 2024
- New holders
- 78
- 159 more added
- Sold out
- 54
- 131 more reduced
6 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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 2025
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nebula Research & Development LLC | 15,043 | $778.9K | 0.07% | −144−0.9% | Reduced |
| Quantinno Capital Management LP | 15,024 | $777.9K | 0.01% | +7,611+102.7% | Added |
| Quadrant Capital Group LLC | 14,831 | $767.9K | 0.03% | +12,794+628.1% | Added |
| Stifel Financial Corp | 14,225 | $736.5K | 0.00% | +2,022+16.6% | Added |
| CWM, LLC | 13,241 | $686.0K | 0.00% | +4,303+48.1% | Added |
| Elo Mutual Pension Insurance Co | 13,146 | $680.6K | 0.02% | +13,146 | New |
| Commonwealth Equity Services, LLC | 13,052 | $676.0K | 0.00% | +510+4.1% | Added |
| Diversify Wealth Management, LLC | 13,439 | $662.1K | 0.05% | +13,439 | New |
| BNC Wealth Management, LLC | 12,568 | $650.7K | 0.23% | −1,500−10.7% | Reduced |
| State of Alaska, Department of Revenue | 12,490 | $646.0K | 0.01% | +335+2.8% | Added |
| Verition Fund Management LLC | 12,326 | $638.2K | 0.00% | −13,852−52.9% | Reduced |
| Diversify Advisory Services, LLC | 12,677 | $624.6K | 0.04% | +4,205+49.6% | Added |
| Brevan Howard Capital Management LP | 12,036 | $623.2K | 0.02% | +7,129+145.3% | Added |
| Alliance Wealth Advisors, LLC | 11,970 | $619.7K | 0.16% | +11,970 | New |
| Stephens Inc | 11,692 | $605.4K | 0.01% | +11,692 | New |
| Legato Capital Management LLC | 11,575 | $599.3K | 0.08% | +11,575 | New |
| Gibbs Wealth Management | 11,561 | $598.6K | 0.14% | +4,711+68.8% | Added |
| K2 Principal Fund, L.P. | 11,520 | $596.5K | 0.09% | +11,520 | New |
| Public Employees Retirement Association of Colorado | 10,992 | $569.0K | 0.00% | 00.0% | Unchanged |
| Wesbanco Bank Inc | 10,984 | $568.7K | 0.02% | 00.0% | Unchanged |
| Aviva PLC | 10,801 | $559.2K | 0.00% | +53+0.5% | Added |
| Allspring Global Investments Holdings, LLC | 10,602 | $554.4K | 0.00% | +3,711+53.9% | Added |
| Pinebridge Investments, L.P. | 10,601 | $548.9K | 0.00% | −32,207−75.2% | Reduced |
| Ieq Capital, LLC | 10,485 | $542.9K | 0.00% | +10,485 | New |
| Greenwood Capital Associates LLC | 10,402 | $538.6K | 0.07% | +3,648+54.0% | Added |
| Illinois Municipal Retirement Fund | 10,104 | $523.1K | 0.01% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 10,096 | $522.7K | 0.00% | −2,917−22.4% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 10,058 | $520.8K | 0.04% | −22,134−68.8% | Reduced |
| RSM US Wealth Management LLC | 9,818 | $508.3K | 0.01% | −2,019−17.1% | Reduced |
| Unique Wealth Strategies, LLC | 9,717 | $503.1K | 0.23% | −339−3.4% | Reduced |
| Profund Advisors LLC | 9,716 | $503.0K | 0.02% | −1,270−11.6% | Reduced |
| GWM Advisors LLC | 9,417 | $487.5K | 0.00% | +9,375+22,321.4% | Added |
| Integrated Advisors Network LLC | 9,340 | $483.6K | 0.02% | +9,340 | New |
| NBC Securities, Inc. | 9,226 | $477.0K | 0.04% | +9,217+102,411.1% | Added |
| Nations Financial Group Inc, | 9,104 | $471.4K | 0.04% | +179+2.0% | Added |
| Moody National Bank Trust Division | 9,030 | $467.5K | 0.05% | +5,182+134.7% | Added |
| Edgestream Partners, L.P. | 9,004 | $466.2K | 0.02% | +9,004 | New |
| Portside Wealth Group, LLC | 8,924 | $462.0K | 0.08% | +4,268+91.7% | Added |
| Great Valley Advisor Group, Inc. | 8,850 | $458.2K | 0.01% | +600+7.3% | Added |
| US Bancorp | 8,661 | $448.4K | 0.00% | −3,025−25.9% | Reduced |
| Advisors Asset Management, Inc. | 8,642 | $447.4K | 0.01% | −290−3.2% | Reduced |
| Advisor Group Holdings, Inc. | 8,474 | $438.7K | 0.00% | +980+13.1% | Added |
| Pacer Advisors, Inc. | 8,083 | $418.5K | 0.00% | −18,728−69.9% | Reduced |
| Securian Asset Management, Inc | 8,056 | $417.1K | 0.01% | 00.0% | Unchanged |
| Truvestments Capital LLC | 8,045 | $416.5K | 0.09% | −11,784−59.4% | Reduced |
| Atria Investments LLC | 7,597 | $393.3K | 0.01% | +1,235+19.4% | Added |
| K.J. Harrison & Partners Inc | 7,500 | $388.3K | 0.08% | +7,500 | New |
| United Services Automobile Association | 7,171 | $385.1K | 0.01% | +7,171 | New |
| Evergreen Capital Management LLC | 7,333 | $379.7K | 0.01% | +234+3.3% | Added |
| Sanctuary Advisors, LLC | 7,260 | $375.9K | 0.00% | +350+5.1% | Added |
| Mercer Global Advisors Inc | 7,136 | $369.5K | 0.00% | +1,061+17.5% | Added |
| Norden Group LLC | 7,066 | $365.8K | 0.04% | +7,066 | New |
| Yorktown Management & Research Co Inc | 7,000 | $362.4K | 0.39% | −10,800−60.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 6,997 | $362.0K | 0.00% | −1,195−14.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 6,912 | $357.9K | 0.00% | +2,522+57.4% | Added |
| Equitable Trust Co | 6,870 | $355.7K | 0.02% | +1,095+19.0% | Added |
| Tower Research Capital LLC (TRC) | 6,699 | $346.8K | 0.01% | −2,786−29.4% | Reduced |
| Crossmark Global Holdings, Inc. | 6,637 | $343.6K | 0.01% | −51−0.8% | Reduced |
| Alps Advisors Inc | 6,589 | $341.1K | 0.00% | −2,411−26.8% | Reduced |
| EntryPoint Capital, LLC | 6,558 | $339.5K | 0.16% | +6,558 | New |
| Independent Financial Group, LLC | 6,500 | $336.5K | 0.01% | +6,500 | New |
| MML Investors Services, LLC | 5,967 | $309.0K | 0.00% | +883+17.4% | Added |
| M.E. Allison & Co., Inc. | 5,897 | $305.3K | 0.30% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 5,819 | $301.3K | 0.00% | +815+16.3% | Added |
| Oppenheimer Asset Management Inc. | 5,762 | $298.3K | 0.00% | +266+4.8% | Added |
| Coldstream Capital Management Inc | 5,618 | $290.9K | 0.01% | +9+0.2% | Added |
| Envestnet Portfolio Solutions, Inc. | 5,605 | $290.2K | 0.00% | −652−10.4% | Reduced |
| Lido Advisors, LLC | 5,559 | $287.8K | 0.00% | +552+11.0% | Added |
| Dakota Wealth Management | 5,492 | $284.3K | 0.01% | −23−0.4% | Reduced |
| Buckingham Strategic Partners | 5,178 | $268.1K | 0.00% | +5,178 | New |
| Nordea Investment Management AB | 5,252 | $267.1K | 0.00% | +5,252 | New |
| CI Private Wealth, LLC | 5,100 | $264.1K | 0.00% | +20.0% | Added |
| Sequoia Financial Advisors, LLC | 5,041 | $261.0K | 0.00% | +808+19.1% | Added |
| Summit Global Investments | 5,005 | $259.0K | 0.02% | +5,005 | New |
| Rockland Trust Co | 4,996 | $258.7K | 0.01% | 00.0% | Unchanged |
| Fiduciary Financial Group, LLC | 5,498 | $254.2K | 0.06% | +5,498 | New |
| M&T Bank Corp | 4,878 | $252.7K | 0.00% | +466+10.6% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 4,798 | $248.4K | 0.00% | +477+11.0% | Added |
| KBC Group NV | 4,765 | $247.0K | 0.00% | +757+18.9% | Added |
| AE Wealth Management LLC | 4,734 | $245.1K | 0.00% | −150−3.1% | Reduced |
| Allianz Asset Management GmbH | 4,700 | $243.3K | 0.00% | −12,710−73.0% | Reduced |
| GAMMA Investing LLC | 4,573 | $236.8K | 0.02% | +1,436+45.8% | Added |
| Blair William & Co | 4,540 | $235.1K | 0.00% | +4,540 | New |
| Dark Forest Capital Management LP | 4,497 | $232.8K | 0.01% | +4,497 | New |
| Hancock Whitney Corp | 4,496 | $232.8K | 0.01% | +4,496 | New |
| Snowden Capital Advisors LLC | 4,341 | $224.8K | 0.01% | +4,341 | New |
| Amundi | 4,725 | $218.1K | 0.00% | −15,648−76.8% | Reduced |
| Acadian Asset Management LLC | 4,239 | $218.0K | 0.00% | +4,239 | New |
| Ontario Teachers Pension Plan Board | 4,135 | $214.1K | 0.00% | −7,863−65.5% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 4,131 | $213.9K | 0.00% | −4,028−49.4% | Reduced |
| Shelton Capital Management | 4,112 | $212.9K | 0.01% | −153−3.6% | Reduced |
| Jefferies Financial Group Inc. | 4,028 | $208.6K | 0.00% | +4,028 | New |
| NJ State Employees Deferred Compensation Plan | 4,000 | $207.1K | 0.03% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 3,929 | $203.4K | 0.00% | −56−1.4% | Reduced |
| MeadowBrook Investment Advisors LLC | 3,900 | $201.9K | 0.19% | −720−15.6% | Reduced |
| First Citizens Bank & Trust Co | 3,873 | $200.5K | 0.01% | +3,873 | New |
| Shell Asset Management Co | 3,807 | $197.0K | 0.01% | −96−2.5% | Reduced |
| HHM Wealth Advisors, LLC | 3,529 | $182.7K | 0.02% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 2,194 | $113.6K | 0.00% | +17+0.8% | Added |
| Lindbrook Capital, LLC | 2,169 | $112.3K | 0.01% | +656+43.4% | Added |