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, Q2 2025
Institutional positions in Rambus Inc as of Jun 30, 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
- 459
- +49 vs. Q1 2025
- Shares held
- 97.1M
- +715.5K (+0.7%) vs. Q1 2025
- Total value
- $6.22B
- +$1.23B (+24.5%) vs. Q1 2025
- New holders
- 88
- 191 more added
- Sold out
- 39
- 131 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Amundi | 7,611 | $494.7K | 0.00% | +2,886+61.1% | Added |
| Keebeck Wealth Management, LLC | 7,852 | $502.7K | 0.07% | +7,852 | New |
| Verition Fund Management LLC | 7,970 | $510.2K | 0.00% | −4,356−35.3% | Reduced |
| Oak Grove Capital LLC | 8,100 | $518.6K | 0.12% | +8,100 | New |
| Securian Asset Management, Inc | 8,180 | $523.7K | 0.01% | +124+1.5% | Added |
| Aviva PLC | 8,196 | $524.7K | 0.00% | −2,605−24.1% | Reduced |
| Atria Investments LLC | 8,538 | $546.6K | 0.01% | +941+12.4% | Added |
| SG Americas Securities, LLC | 8,588 | $550.0K | 0.00% | −481,959−98.2% | Reduced |
| GWM Advisors LLC | 8,605 | $550.9K | 0.00% | −812−8.6% | Reduced |
| Inceptionr LLC | 8,609 | $551.1K | 0.13% | −8,643−50.1% | Reduced |
| Portside Wealth Group, LLC | 8,889 | $569.1K | 0.08% | −35−0.4% | Reduced |
| Moody National Bank Trust Division | 8,906 | $570.2K | 0.05% | −124−1.4% | Reduced |
| Nations Financial Group Inc, | 9,087 | $581.8K | 0.04% | −17−0.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 9,127 | $584.3K | 0.00% | −25,852−73.9% | Reduced |
| Horizon Investments, LLC | 9,158 | $586.3K | 0.01% | +9,158 | New |
| Greenwood Capital Associates LLC | 9,218 | $590.1K | 0.07% | −1,184−11.4% | Reduced |
| Sanctuary Advisors, LLC | 9,293 | $594.9K | 0.00% | +2,033+28.0% | Added |
| Illinois Municipal Retirement Fund | 9,305 | $595.7K | 0.01% | −799−7.9% | Reduced |
| RSM US Wealth Management LLC | 9,320 | $596.7K | 0.01% | −498−5.1% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 9,176 | $604.6K | 0.00% | +2,264+32.8% | Added |
| Profund Advisors LLC | 9,466 | $606.0K | 0.02% | −250−2.6% | Reduced |
| Graham Capital Management, L.P. | 9,515 | $609.1K | 0.02% | +9,515 | New |
| Neo Ivy Capital Management | 9,740 | $623.6K | 0.20% | +9,740 | New |
| Federated Hermes, Inc. | 10,027 | $641.9K | 0.00% | −69−0.7% | Reduced |
| Tudor Investment Corp Et Al | 10,689 | $684.3K | 0.01% | +10,689 | New |
| Public Employees Retirement Association of Colorado | 10,766 | $689.0K | 0.00% | −226−2.1% | Reduced |
| Bokf, NA | 10,764 | $689.1K | 0.01% | +10,764 | New |
| Advisor Group Holdings, Inc. | 11,620 | $702.2K | 0.00% | +3,146+37.1% | Added |
| Toroso Investments, LLC | 11,652 | $746.0K | 0.00% | −11,783−50.3% | Reduced |
| Elo Mutual Pension Insurance Co | 11,780 | $754.2K | 0.02% | −1,366−10.4% | Reduced |
| Commonwealth Equity Services, LLC | 12,044 | $771.0K | 0.00% | −1,008−7.7% | Reduced |
| State of Alaska, Department of Revenue | 12,075 | $773.0K | 0.01% | −415−3.3% | Reduced |
| Alliance Wealth Advisors, LLC | 12,181 | $779.8K | 0.19% | +211+1.8% | Added |
| BNC Wealth Management, LLC | 12,568 | $804.6K | 0.24% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 12,960 | $829.7K | 0.01% | −2,500−16.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 13,102 | $839.0K | 0.00% | +6,105+87.3% | Added |
| CIBC World Markets Corp | 13,304 | $851.7K | 0.01% | −10,406−43.9% | Reduced |
| Caisse de Depot Et Placement du Quebec | 13,379 | $856.5K | 0.00% | +13,379 | New |
| US Bancorp | 13,482 | $863.1K | 0.00% | +4,821+55.7% | Added |
| First Citizens Bank & Trust Co | 13,591 | $870.1K | 0.02% | +9,718+250.9% | Added |
| Y-Intercept (Hong Kong) Ltd | 13,734 | $879.3K | 0.02% | +3,676+36.5% | Added |
| Gibbs Wealth Management | 13,925 | $891.5K | 0.17% | +2,364+20.4% | Added |
| Bank of Montreal | 13,998 | $896.2K | 0.00% | −1,695−10.8% | Reduced |
| Campbell & CO Investment Adviser LLC | 14,285 | $914.5K | 0.06% | +14,285 | New |
| Quadrant Capital Group LLC | 14,780 | $946.2K | 0.03% | −51−0.3% | Reduced |
| Edgestream Partners, L.P. | 14,876 | $952.4K | 0.03% | +5,872+65.2% | Added |
| The PNC Financial Services Group, Inc. | 15,126 | $968.4K | 0.00% | −43−0.3% | Reduced |
| Xponance, Inc. | 15,468 | $990.3K | 0.01% | −35−0.2% | Reduced |
| OP Asset Management Ltd | 15,469 | $990.3K | 0.01% | −6,275−28.9% | Reduced |
| Tower Research Capital LLC (TRC) | 15,601 | $998.8K | 0.03% | +8,902+132.9% | Added |
| Fox Run Management, L.L.C. | 16,033 | $1.03M | 0.17% | +16,033 | New |
| CWM, LLC | 16,267 | $1.04M | 0.00% | +3,026+22.9% | Added |
| Quantinno Capital Management LP | 16,527 | $1.06M | 0.00% | +1,503+10.0% | Added |
| Kovitz Investment Group Partners, LLC | 16,719 | $1.07M | 0.00% | +146+0.9% | Added |
| Guggenheim Capital LLC | 16,778 | $1.07M | 0.01% | −907−5.1% | Reduced |
| Envestnet Portfolio Solutions, Inc. | 16,947 | $1.08M | 0.00% | +11,342+202.4% | Added |
| Diversify Advisory Services, LLC | 14,284 | $1.09M | 0.04% | +1,607+12.7% | Added |
| Stifel Financial Corp | 17,271 | $1.11M | 0.00% | +3,046+21.4% | Added |
| Gould Capital, LLC | 17,392 | $1.11M | 0.74% | +312+1.8% | Added |
| Pictet Asset Management Holding SA | 17,748 | $1.14M | 0.00% | −452−2.5% | Reduced |
| Mariner, LLC | 17,911 | $1.15M | 0.00% | +1,448+8.8% | Added |
| Zacks Investment Management | 17,928 | $1.15M | 0.01% | +17,928 | New |
| Pathstone Holdings, LLC | 18,230 | $1.17M | 0.00% | −6,140−25.2% | Reduced |
| Epoch Investment Partners, Inc. | 18,289 | $1.17M | 0.01% | +2,903+18.9% | Added |
| Great Lakes Advisors, LLC | 18,928 | $1.21M | 0.01% | −1,633−7.9% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 19,142 | $1.23M | 0.00% | +19,142 | New |
| Diversify Wealth Management, LLC | 16,279 | $1.24M | 0.08% | +2,840+21.1% | Added |
| Centiva Capital, LP | 19,796 | $1.27M | 0.08% | +19,796 | New |
| Polen Capital Management LLC | 20,135 | $1.29M | 0.00% | −88,982−81.5% | Reduced |
| Scott Marsh Financial, LLC | 20,362 | $1.30M | 0.48% | +20,362 | New |
| Tealwood Asset Management Inc | 20,460 | $1.31M | 0.58% | +150+0.7% | Added |
| Hennion & Walsh Asset Management, Inc. | 21,166 | $1.36M | 0.05% | +4,373+26.0% | Added |
| JustInvest LLC | 21,514 | $1.38M | 0.02% | +825+4.0% | Added |
| Park Avenue Securities LLC | 21,897 | $1.40M | 0.01% | +557+2.6% | Added |
| Oregon Public Employees Retirement Fund | 22,016 | $1.41M | 0.02% | +416+1.9% | Added |
| Quest Partners LLC | 22,057 | $1.41M | 0.14% | +21,409+3,303.9% | Added |
| New Mexico Educational Retirement Board | 22,100 | $1.42M | 0.05% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 22,200 | $1.42M | 0.01% | +900+4.2% | Added |
| Bailard, Inc. | 22,608 | $1.45M | 0.03% | −9,838−30.3% | Reduced |
| DnB Asset Management AS | 23,063 | $1.48M | 0.01% | +23,063 | New |
| Aurora Investment Counsel | 23,311 | $1.49M | 0.79% | +23,311 | New |
| Northwestern Mutual Investment Management Company, LLC | 23,982 | $1.54M | 0.02% | +286+1.2% | Added |
| Brevan Howard Capital Management LP | 24,086 | $1.54M | 0.02% | +12,050+100.1% | Added |
| Police & Firemen's Retirement System of New Jersey | 24,357 | $1.56M | 0.01% | +1,250+5.4% | Added |
| Natixis Advisors, L.P. | 24,397 | $1.56M | 0.00% | −98,082−80.1% | Reduced |
| AXA S.A. | 25,227 | $1.62M | 0.00% | +25,227 | New |
| Thrivent Financial for Lutherans | 25,291 | $1.62M | 0.00% | +303+1.2% | Added |
| Capital Fund Management S.A. | 25,716 | $1.65M | 0.02% | −55,595−68.4% | Reduced |
| State of Michigan Retirement System | 25,800 | $1.65M | 0.01% | +300+1.2% | Added |
| Linden Thomas Advisory Services, LLC | 26,558 | $1.70M | 0.19% | −288−1.1% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 27,597 | $1.77M | 0.01% | +2,121+8.3% | Added |
| STRS Ohio | 27,600 | $1.77M | 0.01% | +300+1.1% | Added |
| Wesbanco Bank Inc | 27,984 | $1.79M | 0.05% | +17,000+154.8% | Added |
| South Dakota Investment Council | 28,613 | $1.83M | 0.04% | 00.0% | Unchanged |
| Nebula Research & Development LLC | 28,720 | $1.84M | 0.16% | +13,677+90.9% | Added |
| Cambiar Investors LLC | 28,824 | $1.85M | 0.08% | −100.0% | Reduced |
| Cerity Partners LLC | 29,170 | $1.87M | 0.00% | +3,727+14.6% | Added |
| Handelsbanken Fonder AB | 29,697 | $1.90M | 0.01% | −2,500−7.8% | Reduced |
| Danske Bank A/S | 29,859 | $1.91M | 0.00% | −4,534−13.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 30,098 | $1.93M | 0.00% | +969+3.3% | Added |