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, Q4 2024
Institutional positions in Rambus Inc as of Dec 31, 2024. 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
- 395
- +27 vs. Q3 2024
- Shares held
- 95.1M
- +3.12M (+3.4%) vs. Q3 2024
- Total value
- $5.03B
- +$1.14B (+29.4%) vs. Q3 2024
- New holders
- 78
- 121 more added
- Sold out
- 51
- 153 more reduced
8 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dynamic Technology Lab Private Ltd | 15,520 | $820.0K | 0.13% | −33,676−68.5% | Reduced |
| Pathstone Holdings, LLC | 15,688 | $829.3K | 0.00% | −723−4.4% | Reduced |
| The PNC Financial Services Group, Inc. | 16,284 | $860.8K | 0.00% | +6,781+71.4% | Added |
| AXA S.A. | 16,407 | $867.3K | 0.00% | −890−5.1% | Reduced |
| Toroso Investments, LLC | 16,712 | $883.4K | 0.01% | −399−2.3% | Reduced |
| Empowered Funds, LLC | 16,967 | $896.9K | 0.01% | +10,450+160.3% | Added |
| Allianz Asset Management GmbH | 17,410 | $920.3K | 0.00% | −53,647−75.5% | Reduced |
| Yorktown Management & Research Co Inc | 17,800 | $940.9K | 0.90% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 18,383 | $971.7K | 0.00% | +877+5.0% | Added |
| PEAK6 LLC | 18,559 | $981.0K | 0.04% | +18,559 | New |
| JustInvest LLC | 19,035 | $1.01M | 0.02% | +4,088+27.3% | Added |
| HSBC Holdings PLC | 19,324 | $1.02M | 0.00% | −91,957−82.6% | Reduced |
| Los Angeles Capital Management LLC | 19,599 | $1.04M | 0.00% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 19,737 | $1.04M | 0.01% | −21,239−51.8% | Reduced |
| Truvestments Capital LLC | 19,829 | $1.05M | 0.27% | +4,102+26.1% | Added |
| Fieldview Capital Management, LLC | 20,103 | $1.06M | 0.16% | +20,103 | New |
| Marshall Wace, LLP | 20,455 | $1.08M | 0.00% | −165,103−89.0% | Reduced |
| Oregon Public Employees Retirement Fund | 21,700 | $1.15M | 0.02% | −200−0.9% | Reduced |
| Amundi | 20,373 | $1.16M | 0.00% | +20,373 | New |
| New Mexico Educational Retirement Board | 22,100 | $1.17M | 0.04% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 22,300 | $1.18M | 0.01% | +22,300 | New |
| Police & Firemen's Retirement System of New Jersey | 22,663 | $1.20M | 0.01% | +22,663 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 23,537 | $1.24M | 0.01% | −199−0.8% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 23,686 | $1.25M | 0.03% | −204−0.9% | Reduced |
| Cetera Investment Advisers | 24,486 | $1.29M | 0.00% | +757+3.2% | Added |
| Natixis | 24,500 | $1.30M | 0.01% | +2,600+11.9% | Added |
| Thrivent Financial for Lutherans | 25,076 | $1.33M | 0.00% | −222−0.9% | Reduced |
| State of Michigan Retirement System | 25,200 | $1.33M | 0.01% | −400−1.6% | Reduced |
| Meritage Portfolio Management | 25,204 | $1.33M | 0.08% | +11,531+84.3% | Added |
| Campbell & CO Investment Adviser LLC | 25,871 | $1.37M | 0.11% | +25,871 | New |
| Teacher Retirement System of Texas | 25,957 | $1.37M | 0.00% | −10,242−28.3% | Reduced |
| Verition Fund Management LLC | 26,178 | $1.38M | 0.01% | −4,710−15.2% | Reduced |
| Linden Thomas Advisory Services, LLC | 26,398 | $1.40M | 0.18% | −100−0.4% | Reduced |
| Pacer Advisors, Inc. | 26,811 | $1.42M | 0.00% | −14,054−34.4% | Reduced |
| STRS Ohio | 27,300 | $1.44M | 0.01% | −5,300−16.3% | Reduced |
| Headlands Technologies LLC | 27,316 | $1.44M | 0.15% | −22,236−44.9% | Reduced |
| South Dakota Investment Council | 27,613 | $1.46M | 0.03% | +27,613 | New |
| Inceptionr LLC | 28,362 | $1.50M | 0.33% | +28,362 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 29,129 | $1.54M | 0.00% | +4,224+17.0% | Added |
| Louisiana State Employees Retirement System | 29,600 | $1.56M | 0.03% | −200−0.7% | Reduced |
| Diversified Trust Co | 30,041 | $1.59M | 0.04% | +2,992+11.1% | Added |
| HRT Financial LP | 30,607 | $1.62M | 0.01% | −399,584−92.9% | Reduced |
| Man Group plc | 30,707 | $1.62M | 0.00% | −14,600−32.2% | Reduced |
| State Board of Administration of Florida Retirement System | 31,123 | $1.65M | 0.00% | 00.0% | Unchanged |
| Point72 Asia (Singapore) Pte. Ltd. | 31,156 | $1.65M | 0.43% | −31,443−50.2% | Reduced |
| Arizona State Retirement System | 31,237 | $1.65M | 0.01% | +202+0.7% | Added |
| Bailard, Inc. | 31,291 | $1.65M | 0.04% | −1,958−5.9% | Reduced |
| Jackson Square Partners, LLC | 31,318 | $1.66M | 0.18% | −34,949−52.7% | Reduced |
| Public Employees Retirement System of Ohio | 31,786 | $1.68M | 0.01% | −140,748−81.6% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 32,192 | $1.70M | 0.11% | −5,803−15.3% | Reduced |
| Handelsbanken Fonder AB | 32,197 | $1.70M | 0.01% | −200−0.6% | Reduced |
| Ameritas Investment Partners, Inc. | 32,526 | $1.72M | 0.06% | −594−1.8% | Reduced |
| Cubist Systematic Strategies, LLC | 32,753 | $1.73M | 0.03% | −781,808−96.0% | Reduced |
| Cambiar Investors LLC | 34,526 | $1.83M | 0.07% | −2,960−7.9% | Reduced |
| Tudor Investment Corp Et Al | 35,256 | $1.86M | 0.02% | −81,890−69.9% | Reduced |
| Danske Bank A/S | 35,770 | $1.89M | 0.01% | +25,365+243.8% | Added |
| Great Lakes Advisors, LLC | 35,955 | $1.90M | 0.02% | −8,633−19.4% | Reduced |
| Yousif Capital Management, LLC | 37,454 | $1.98M | 0.02% | −2,146−5.4% | Reduced |
| Ensign Peak Advisors, Inc | 37,476 | $1.98M | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 38,194 | $2.02M | 0.04% | −164,036−81.1% | Reduced |
| Campbell Newman Asset Management Inc | 39,046 | $2.06M | 0.17% | +16,376+72.2% | Added |
| Victory Capital Management Inc | 39,257 | $2.08M | 0.00% | −482−1.2% | Reduced |
| State of New Jersey Common Pension Fund D | 40,145 | $2.12M | 0.01% | −4,062−9.2% | Reduced |
| Aspetuck Financial Management LLC | 42,275 | $2.23M | 1.74% | +42,275 | New |
| Pinebridge Investments, L.P. | 42,808 | $2.26M | 0.02% | +12,807+42.7% | Added |
| Zacks Investment Management | 42,948 | $2.27M | 0.02% | +3,678+9.4% | Added |
| State of Tennessee, Treasury Department | 44,078 | $2.33M | 0.01% | −15,243−25.7% | Reduced |
| Centiva Capital, LP | 44,098 | $2.33M | 0.09% | −39,817−47.4% | Reduced |
| Hillsdale Investment Management Inc. | 45,400 | $2.40M | 0.12% | +200+0.4% | Added |
| Susquehanna International Group, LLP | 45,673 | $2.41M | 0.00% | −120,726−72.6% | Reduced |
| Moody Aldrich Partners LLC | 45,712 | $2.42M | 0.45% | −1,347−2.9% | Reduced |
| TownSquare Capital, LLC | 46,390 | $2.45M | 0.03% | +46,390 | New |
| B. Metzler seel. Sohn & Co. AG | 46,479 | $2.46M | 0.03% | +4,332+10.3% | Added |
| Alberta Investment Management Corp | 47,140 | $2.49M | 0.02% | 00.0% | Unchanged |
| Amalgamated Bank | 48,847 | $2.58M | 0.02% | +426+0.9% | Added |
| ProShare Advisors LLC | 49,027 | $2.59M | 0.01% | +9,546+24.2% | Added |
| Creative Planning | 51,099 | $2.70M | 0.00% | +13,832+37.1% | Added |
| Captrust Financial Advisors | 55,227 | $2.92M | 0.01% | −45,939−45.4% | Reduced |
| BNP Paribas Arbitrage, SA | 57,221 | $3.02M | 0.00% | −77,679−57.6% | Reduced |
| Intech Investment Management LLC | 57,796 | $3.06M | 0.03% | −33,363−36.6% | Reduced |
| Teachers Retirement System of the State of Kentucky | 62,272 | $3.29M | 0.03% | −1,650−2.6% | Reduced |
| New York State Teachers Retirement System | 62,357 | $3.30M | 0.01% | −17,893−22.3% | Reduced |
| Fred Alger Management, LLC | 62,508 | $3.30M | 0.02% | +35,233+129.2% | Added |
| LPL Financial LLC | 63,364 | $3.35M | 0.00% | +9,183+16.9% | Added |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 64,000 | $3.43M | 1.36% | −4,400−6.4% | Reduced |
| Rice Hall James & Associates, LLC | 68,874 | $3.64M | 0.20% | +631+0.9% | Added |
| Lazard Asset Management LLC | 69,169 | $3.65M | 0.01% | +36,582+112.3% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 73,200 | $3.87M | 0.01% | −110,900−60.2% | Reduced |
| Vident Advisory, LLC | 73,714 | $3.90M | 0.07% | +7,686+11.6% | Added |
| Envestnet Asset Management Inc | 73,938 | $3.91M | 0.00% | +34,193+86.0% | Added |
| Renaissance Group LLC | 75,889 | $4.01M | 0.17% | +16,591+28.0% | Added |
| Public Sector Pension Investment Board | 78,600 | $4.15M | 0.02% | +78,600 | New |
| Russell Investments Group, Ltd. | 79,173 | $4.19M | 0.01% | −59,542−42.9% | Reduced |
| FMR LLC | 79,482 | $4.20M | 0.00% | +16,752+26.7% | Added |
| Primecap Management Co | 82,500 | $4.36M | 0.00% | −12,000−12.7% | Reduced |
| Granahan Investment Management Inc | 82,620 | $4.37M | 0.18% | −24,306−22.7% | Reduced |
| Harbor Capital Advisors, Inc. | 85,914 | $4.54M | 0.20% | +23,269+37.1% | Added |
| First Trust Advisors LP | 86,609 | $4.58M | 0.00% | −113,806−56.8% | Reduced |
| Thornburg Investment Management Inc | 88,084 | $4.66M | 0.06% | +19,036+27.6% | Added |
| Great West Life Assurance Co | 91,911 | $4.85M | 0.01% | −3,619−3.8% | Reduced |