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; 620 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 | 620 | $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 |
|---|---|---|---|---|---|
| MAI Capital Management | 1,241 | $64.3K | 0.00% | −84−6.3% | Reduced |
| Ronald Blue Trust, Inc. | 1,296 | $67.1K | 0.00% | −156−10.7% | Reduced |
| Jones Financial Companies LLLP | 1,252 | $67.2K | 0.00% | +177+16.5% | Added |
| Fifth Third Bancorp | 1,418 | $73.4K | 0.00% | +282+24.8% | Added |
| Versant Capital Management, Inc | 1,507 | $78.0K | 0.01% | +799+112.9% | Added |
| Harbour Investments, Inc. | 1,522 | $78.8K | 0.00% | +1,502+7,510.0% | Added |
| Parallel Advisors, LLC | 1,629 | $84.3K | 0.00% | +414+34.1% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 1,857 | $96.2K | 0.00% | +1,148+161.9% | Added |
| Northwest Capital Management Inc | 2,000 | $103.5K | 0.04% | 00.0% | Unchanged |
| Harvest Fund Management Co., Ltd | 2,003 | $104.0K | 0.01% | −1,626−44.8% | Reduced |
| Headlands Technologies LLC | 2,160 | $111.8K | 0.01% | −25,156−92.1% | Reduced |
| Covestor Ltd | 2,162 | $112.0K | 0.07% | −1,084−33.4% | Reduced |
| Lindbrook Capital, LLC | 2,169 | $112.3K | 0.01% | +656+43.4% | Added |
| Clearstead Advisors, LLC | 2,194 | $113.6K | 0.00% | +17+0.8% | Added |
| HHM Wealth Advisors, LLC | 3,529 | $182.7K | 0.02% | 00.0% | Unchanged |
| Shell Asset Management Co | 3,807 | $197.0K | 0.01% | −96−2.5% | Reduced |
| First Citizens Bank & Trust Co | 3,873 | $200.5K | 0.01% | +3,873 | New |
| MeadowBrook Investment Advisors LLC | 3,900 | $201.9K | 0.19% | −720−15.6% | Reduced |
| Nisa Investment Advisors, LLC | 3,929 | $203.4K | 0.00% | −56−1.4% | Reduced |
| NJ State Employees Deferred Compensation Plan | 4,000 | $207.1K | 0.03% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 4,028 | $208.6K | 0.00% | +4,028 | New |
| Shelton Capital Management | 4,112 | $212.9K | 0.01% | −153−3.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 4,131 | $213.9K | 0.00% | −4,028−49.4% | Reduced |
| Ontario Teachers Pension Plan Board | 4,135 | $214.1K | 0.00% | −7,863−65.5% | Reduced |
| Acadian Asset Management LLC | 4,239 | $218.0K | 0.00% | +4,239 | New |
| Amundi | 4,725 | $218.1K | 0.00% | −15,648−76.8% | Reduced |
| Snowden Capital Advisors LLC | 4,341 | $224.8K | 0.01% | +4,341 | New |
| Hancock Whitney Corp | 4,496 | $232.8K | 0.01% | +4,496 | New |
| Dark Forest Capital Management LP | 4,497 | $232.8K | 0.01% | +4,497 | New |
| Blair William & Co | 4,540 | $235.1K | 0.00% | +4,540 | New |
| GAMMA Investing LLC | 4,573 | $236.8K | 0.02% | +1,436+45.8% | Added |
| Allianz Asset Management GmbH | 4,700 | $243.3K | 0.00% | −12,710−73.0% | Reduced |
| AE Wealth Management LLC | 4,734 | $245.1K | 0.00% | −150−3.1% | Reduced |
| KBC Group NV | 4,765 | $247.0K | 0.00% | +757+18.9% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 4,798 | $248.4K | 0.00% | +477+11.0% | Added |
| M&T Bank Corp | 4,878 | $252.7K | 0.00% | +466+10.6% | Added |
| Fiduciary Financial Group, LLC | 5,498 | $254.2K | 0.06% | +5,498 | New |
| Rockland Trust Co | 4,996 | $258.7K | 0.01% | 00.0% | Unchanged |
| Summit Global Investments | 5,005 | $259.0K | 0.02% | +5,005 | New |
| Sequoia Financial Advisors, LLC | 5,041 | $261.0K | 0.00% | +808+19.1% | Added |
| CI Private Wealth, LLC | 5,100 | $264.1K | 0.00% | +20.0% | Added |
| Nordea Investment Management AB | 5,252 | $267.1K | 0.00% | +5,252 | New |
| Buckingham Strategic Partners | 5,178 | $268.1K | 0.00% | +5,178 | New |
| Dakota Wealth Management | 5,492 | $284.3K | 0.01% | −23−0.4% | Reduced |
| Lido Advisors, LLC | 5,559 | $287.8K | 0.00% | +552+11.0% | Added |
| Envestnet Portfolio Solutions, Inc. | 5,605 | $290.2K | 0.00% | −652−10.4% | Reduced |
| Coldstream Capital Management Inc | 5,618 | $290.9K | 0.01% | +9+0.2% | Added |
| Oppenheimer Asset Management Inc. | 5,762 | $298.3K | 0.00% | +266+4.8% | Added |
| Northwestern Mutual Wealth Management Co | 5,819 | $301.3K | 0.00% | +815+16.3% | Added |
| M.E. Allison & Co., Inc. | 5,897 | $305.3K | 0.30% | 00.0% | Unchanged |
| MML Investors Services, LLC | 5,967 | $309.0K | 0.00% | +883+17.4% | Added |
| Independent Financial Group, LLC | 6,500 | $336.5K | 0.01% | +6,500 | New |
| EntryPoint Capital, LLC | 6,558 | $339.5K | 0.16% | +6,558 | New |
| Alps Advisors Inc | 6,589 | $341.1K | 0.00% | −2,411−26.8% | Reduced |
| Crossmark Global Holdings, Inc. | 6,637 | $343.6K | 0.01% | −51−0.8% | Reduced |
| Tower Research Capital LLC (TRC) | 6,699 | $346.8K | 0.01% | −2,786−29.4% | Reduced |
| Equitable Trust Co | 6,870 | $355.7K | 0.02% | +1,095+19.0% | Added |
| Wealth Enhancement Advisory Services, LLC | 6,912 | $357.9K | 0.00% | +2,522+57.4% | Added |
| Cambridge Investment Research Advisors, Inc. | 6,997 | $362.0K | 0.00% | −1,195−14.6% | Reduced |
| Yorktown Management & Research Co Inc | 7,000 | $362.4K | 0.39% | −10,800−60.7% | Reduced |
| Norden Group LLC | 7,066 | $365.8K | 0.04% | +7,066 | New |
| Mercer Global Advisors Inc | 7,136 | $369.5K | 0.00% | +1,061+17.5% | Added |
| Sanctuary Advisors, LLC | 7,260 | $375.9K | 0.00% | +350+5.1% | Added |
| Evergreen Capital Management LLC | 7,333 | $379.7K | 0.01% | +234+3.3% | Added |
| United Services Automobile Association | 7,171 | $385.1K | 0.01% | +7,171 | New |
| K.J. Harrison & Partners Inc | 7,500 | $388.3K | 0.08% | +7,500 | New |
| Atria Investments LLC | 7,597 | $393.3K | 0.01% | +1,235+19.4% | Added |
| Truvestments Capital LLC | 8,045 | $416.5K | 0.09% | −11,784−59.4% | Reduced |
| Securian Asset Management, Inc | 8,056 | $417.1K | 0.01% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 8,083 | $418.5K | 0.00% | −18,728−69.9% | Reduced |
| Advisor Group Holdings, Inc. | 8,474 | $438.7K | 0.00% | +980+13.1% | Added |
| Advisors Asset Management, Inc. | 8,642 | $447.4K | 0.01% | −290−3.2% | Reduced |
| US Bancorp | 8,661 | $448.4K | 0.00% | −3,025−25.9% | Reduced |
| Great Valley Advisor Group, Inc. | 8,850 | $458.2K | 0.01% | +600+7.3% | Added |
| Portside Wealth Group, LLC | 8,924 | $462.0K | 0.08% | +4,268+91.7% | Added |
| Edgestream Partners, L.P. | 9,004 | $466.2K | 0.02% | +9,004 | New |
| Moody National Bank Trust Division | 9,030 | $467.5K | 0.05% | +5,182+134.7% | Added |
| Nations Financial Group Inc, | 9,104 | $471.4K | 0.04% | +179+2.0% | Added |
| NBC Securities, Inc. | 9,226 | $477.0K | 0.04% | +9,217+102,411.1% | Added |
| Integrated Advisors Network LLC | 9,340 | $483.6K | 0.02% | +9,340 | New |
| GWM Advisors LLC | 9,417 | $487.5K | 0.00% | +9,375+22,321.4% | Added |
| Profund Advisors LLC | 9,716 | $503.0K | 0.02% | −1,270−11.6% | Reduced |
| Unique Wealth Strategies, LLC | 9,717 | $503.1K | 0.23% | −339−3.4% | Reduced |
| RSM US Wealth Management LLC | 9,818 | $508.3K | 0.01% | −2,019−17.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 10,058 | $520.8K | 0.04% | −22,134−68.8% | Reduced |
| Federated Hermes, Inc. | 10,096 | $522.7K | 0.00% | −2,917−22.4% | Reduced |
| Illinois Municipal Retirement Fund | 10,104 | $523.1K | 0.01% | 00.0% | Unchanged |
| Greenwood Capital Associates LLC | 10,402 | $538.6K | 0.07% | +3,648+54.0% | Added |
| Ieq Capital, LLC | 10,485 | $542.9K | 0.00% | +10,485 | New |
| Pinebridge Investments, L.P. | 10,601 | $548.9K | 0.00% | −32,207−75.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 10,602 | $554.4K | 0.00% | +3,711+53.9% | Added |
| Aviva PLC | 10,801 | $559.2K | 0.00% | +53+0.5% | Added |
| Wesbanco Bank Inc | 10,984 | $568.7K | 0.02% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 10,992 | $569.0K | 0.00% | 00.0% | Unchanged |
| K2 Principal Fund, L.P. | 11,520 | $596.5K | 0.09% | +11,520 | New |
| Gibbs Wealth Management | 11,561 | $598.6K | 0.14% | +4,711+68.8% | Added |
| Legato Capital Management LLC | 11,575 | $599.3K | 0.08% | +11,575 | New |
| Stephens Inc | 11,692 | $605.4K | 0.01% | +11,692 | New |
| Alliance Wealth Advisors, LLC | 11,970 | $619.7K | 0.16% | +11,970 | New |
| Brevan Howard Capital Management LP | 12,036 | $623.2K | 0.02% | +7,129+145.3% | Added |