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, Q2 2024
Institutional positions in Rambus Inc as of Jun 30, 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
- 363
- −9 vs. Q1 2024
- Shares held
- 96.1M
- −1.02M (−1.1%) vs. Q1 2024
- Total value
- $5.64B
- −$342.9M (−5.7%) vs. Q1 2024
- New holders
- 53
- 123 more added
- Sold out
- 62
- 149 more reduced
3 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2024
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital Fund Management S.A. | 203,228 | $11.9M | 0.14% | +102,196+101.2% | Added |
| Penn Capital Management Co Inc | 205,964 | $12.1M | 1.15% | −4,221−2.0% | Reduced |
| Two Sigma Advisers, LP | 206,700 | $12.1M | 0.03% | +147,800+250.9% | Added |
| Swiss National Bank | 213,600 | $12.6M | 0.01% | +1,400+0.7% | Added |
| Royal Bank of Canada | 215,220 | $12.6M | 0.00% | +50,101+30.3% | Added |
| Legal & General Group Plc | 220,812 | $13.0M | 0.00% | −26,084−10.6% | Reduced |
| Natixis Advisors, L.P. | 223,027 | $13.1M | 0.03% | +14,093+6.7% | Added |
| Victory Capital Management Inc | 224,104 | $13.2M | 0.01% | −2,489−1.1% | Reduced |
| Glenmede Trust Co NA | 236,002 | $13.9M | 0.07% | +1,794+0.8% | Added |
| Two Sigma Investments, LP | 238,047 | $14.0M | 0.03% | +222,214+1,403.5% | Added |
| UBS Asset Management Americas Inc | 240,247 | $14.1M | 0.00% | +112,104+87.5% | Added |
| Alliancebernstein L.P. | 258,379 | $15.2M | 0.01% | −9,638−3.6% | Reduced |
| New York State Common Retirement Fund | 272,982 | $16.0M | 0.02% | −2,513−0.9% | Reduced |
| Prudential Financial Inc | 283,409 | $16.7M | 0.03% | +226,757+400.3% | Added |
| Lord, Abbett & Co. LLC | 284,896 | $16.7M | 0.05% | −476,577−62.6% | Reduced |
| SEI Investments Co | 284,942 | $16.7M | 0.02% | +94,462+49.6% | Added |
| Mesirow Institutional Investment Management, Inc. | 285,260 | $16.8M | 1.47% | +2,457+0.9% | Added |
| Assenagon Asset Management S.A. | 288,363 | $16.9M | 0.04% | +229,066+386.3% | Added |
| Emerald Mutual Fund Advisers Trust | 306,695 | $18.0M | 0.94% | +35,265+13.0% | Added |
| Axiom Investors LLC | 314,864 | $18.5M | 0.16% | −2,902−0.9% | Reduced |
| Rhumbline Advisers | 340,637 | $20.0M | 0.02% | +5,360+1.6% | Added |
| WCM Investment Management, LLC | 363,656 | $20.6M | 0.05% | +4,909+1.4% | Added |
| Franklin Resources Inc | 385,322 | $22.6M | 0.01% | −78,474−16.9% | Reduced |
| Emerald Advisers, LLC | 394,961 | $23.2M | 0.97% | +30,297+8.3% | Added |
| Principal Financial Group Inc | 424,383 | $24.9M | 0.01% | −119,162−21.9% | Reduced |
| Panagora Asset Management Inc | 429,292 | $25.2M | 0.13% | +41,614+10.7% | Added |
| Loomis Sayles & Co L P | 440,253 | $25.9M | 0.04% | −396,713−47.4% | Reduced |
| Artisan Partners Limited Partnership | 469,442 | $27.6M | 0.04% | −2,726−0.6% | Reduced |
| Westwood Holdings Group Inc. | 482,756 | $28.4M | 0.13% | +43,275+9.8% | Added |
| Barclays PLC | 514,657 | $30.2M | 0.01% | −152,517−22.9% | Reduced |
| Westfield Capital Management Co LP | 545,740 | $32.1M | 0.16% | +217,687+66.4% | Added |
| Silvercrest Asset Management Group LLC | 548,211 | $32.2M | 0.22% | +37,693+7.4% | Added |
| Macquarie Group Ltd | 550,541 | $32.4M | 0.04% | −65,562−10.6% | Reduced |
| AQR Capital Management LLC | 572,930 | $33.1M | 0.05% | +486,078+559.7% | Added |
| Citigroup Inc | 677,570 | $39.8M | 0.04% | +144,654+27.1% | Added |
| Eagle Asset Management Inc | 715,605 | $41.5M | 0.22% | −96,922−11.9% | Reduced |
| FMR LLC | 730,328 | $42.9M | 0.00% | −182,890−20.0% | Reduced |
| Ameriprise Financial Inc | 788,322 | $46.3M | 0.01% | −844,776−51.7% | Reduced |
| Morgan Stanley | 826,232 | $48.5M | 0.00% | +10,089+1.2% | Added |
| Voya Investment Management LLC | 833,672 | $49.0M | 0.05% | +21,986+2.7% | Added |
| Bank of America Corp | 847,538 | $49.8M | 0.00% | −135,779−13.8% | Reduced |
| Rafferty Asset Management, LLC | 871,309 | $51.2M | 0.19% | −86,038−9.0% | Reduced |
| Goldman Sachs Group Inc | 919,387 | $54.0M | 0.01% | −248,772−21.3% | Reduced |
| American Century Companies Inc | 1,053,377 | $61.9M | 0.04% | +410,332+63.8% | Added |
| Price T Rowe Associates Inc | 1,064,297 | $62.5M | 0.01% | +7,947+0.8% | Added |
| Captrust Financial Advisors | 1,095,394 | $64.4M | 0.21% | −163,582−13.0% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 1,105,772 | $65.0M | 0.60% | +166,090+17.7% | Added |
| Nuveen Asset Management, LLC | 1,236,278 | $72.6M | 0.02% | −372,508−23.2% | Reduced |
| Charles Schwab Investment Management Inc | 1,251,427 | $73.5M | 0.01% | +40,930+3.4% | Added |
| Norges Bank | 1,286,532 | $75.6M | 0.01% | +23,326+1.8% | Added |
| Northern Trust Corp | 1,296,254 | $76.2M | 0.01% | −151,069−10.4% | Reduced |
| Swedbank AB | 1,549,850 | $91.1M | 0.12% | +556,850+56.1% | Added |
| Invesco Ltd. | 1,721,282 | $101.1M | 0.02% | +298,542+21.0% | Added |
| Dimensional Fund Advisors LP | 1,798,485 | $105.7M | 0.03% | +158,259+9.6% | Added |
| Neuberger Berman Group LLC | 1,882,938 | $110.6M | 0.09% | −1,628,192−46.4% | Reduced |
| Hood River Capital Management LLC | 2,165,548 | $127.2M | 2.64% | +116,976+5.7% | Added |
| Bank of New York Mellon Corp | 2,237,267 | $131.5M | 0.02% | −70,531−3.1% | Reduced |
| Geode Capital Management, LLC | 2,600,289 | $152.8M | 0.01% | +109,768+4.4% | Added |
| State Street Corp | 4,654,295 | $273.5M | 0.01% | +217,779+4.9% | Added |
| Wellington Management Group LLP | 6,203,098 | $364.5M | 0.07% | +2,085,410+50.6% | Added |
| JPMorgan Chase & Co | 6,594,469 | $387.5M | 0.03% | +89,920+1.4% | Added |
| Vanguard Group Inc | 11,789,178 | $692.7M | 0.01% | +138,064+1.2% | Added |
| BlackRock Inc. | 15,786,205 | $927.6M | 0.02% | +345,248+2.2% | Added |
| Park West Asset Management LLC | 0 | $0 | 0.00% | −450,000−100.0% | Sold out |
| Summit Partners Public Asset Management, LLC | 0 | $0 | 0.00% | −416,677−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −194,551−100.0% | Sold out |
| Epoch Investment Partners, Inc. | 0 | $0 | 0.00% | −122,172−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −112,572−100.0% | Sold out |
| Texas Permanent School Fund | 0 | $0 | 0.00% | −94,091−100.0% | Sold out |
| Kadensa Capital Ltd | 0 | $0 | 0.00% | −92,907−100.0% | Sold out |
| Lombard Odier Asset Management (Europe) Ltd | 0 | $0 | 0.00% | −89,559−100.0% | Sold out |
| Pinebridge Investments, L.P. | 0 | $0 | 0.00% | −64,429−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −53,800−100.0% | Sold out |
| Castleark Management LLC | 0 | $0 | 0.00% | −50,710−100.0% | Sold out |
| Duality Advisers, LP | 0 | $0 | 0.00% | −37,548−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −33,404−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −26,318−100.0% | Sold out |
| JB Capital LLC | 0 | $0 | 0.00% | −24,909−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −23,103−100.0% | Sold out |
| MYDA Advisors LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Lombard Odier Asset Management (Switzerland) SA | 0 | $0 | 0.00% | −19,786−100.0% | Sold out |
| Keystone Investors Pte Ltd | 0 | $0 | 0.00% | −19,022−100.0% | Sold out |
| Harvest Investment Services, LLC | 0 | $0 | 0.00% | −18,902−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −14,823−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −12,030−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −11,682−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −11,476−100.0% | Sold out |
| Shelton Wealth Management, LLC | 0 | $0 | 0.00% | −10,969−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −10,342−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −9,175−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −8,759−100.0% | Sold out |
| Level Four Advisory Services, LLC | 0 | $0 | 0.00% | −7,881−100.0% | Sold out |
| M&T Bank Corp | 0 | $0 | 0.00% | −8,208−100.0% | Sold out |
| National Asset Management, Inc. | 0 | $0 | 0.00% | −8,742−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −7,817−100.0% | Sold out |
| Contravisory Investment Management, Inc. | 0 | $0 | 0.00% | −7,561−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −7,500−100.0% | Sold out |
| MML Investors Services, LLC | 0 | $0 | 0.00% | −6,453−100.0% | Sold out |
| Navellier & Associates Inc | 0 | $0 | 0.00% | −5,991−100.0% | Sold out |