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 2022
Institutional positions in Rambus Inc as of Mar 31, 2022. 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
- 276
- +20 vs. Q4 2021
- Shares held
- 93.7M
- −1.91M (−2.0%) vs. Q4 2021
- Total value
- $2.98B
- +$178.1M (+6.4%) vs. Q4 2021
- New holders
- 46
- 83 more added
- Sold out
- 26
- 97 more reduced
2 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2021: 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 2022
Shares, value and share of portfolio for each institution holding Rambus Inc; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 17,199,468 | $548.5M | 0.01% | +47,422+0.3% | Added |
| Vanguard Group Inc | 12,030,880 | $383.7M | 0.01% | +168,940+1.4% | Added |
| Ameriprise Financial Inc | 5,029,452 | $160.4M | 0.05% | −373,626−6.9% | Reduced |
| State Street Corp | 4,632,111 | $147.7M | 0.01% | −202,375−4.2% | Reduced |
| Neuberger Berman Group LLC | 4,220,649 | $134.6M | 0.11% | +701,583+19.9% | Added |
| Dimensional Fund Advisors LP | 3,718,856 | $118.6M | 0.04% | +87,609+2.4% | Added |
| Loomis Sayles & Co L P | 3,068,768 | $97.9M | 0.13% | −6,320−0.2% | Reduced |
| Westwood Holdings Group Inc. | 2,520,284 | $80.4M | 0.74% | −401,550−13.7% | Reduced |
| Lynrock Lake LP | 2,342,497 | $74.7M | 4.20% | −1,656,355−41.4% | Reduced |
| Wellington Management Group LLP | 2,245,891 | $71.6M | 0.01% | −144,321−6.0% | Reduced |
| Geode Capital Management, LLC | 1,976,130 | $63.0M | 0.01% | +60,311+3.1% | Added |
| Lord, Abbett & Co. LLC | 1,961,530 | $62.6M | 0.17% | +236,164+13.7% | Added |
| Silvercrest Asset Management Group LLC | 1,823,354 | $58.1M | 0.38% | −535,987−22.7% | Reduced |
| Northern Trust Corp | 1,573,216 | $50.2M | 0.01% | −50,655−3.1% | Reduced |
| D. E. Shaw & Co., Inc. | 1,278,334 | $40.8M | 0.05% | −75,679−5.6% | Reduced |
| Bank of New York Mellon Corp | 1,169,539 | $37.3M | 0.01% | −19,614−1.6% | Reduced |
| Norges Bank | 1,089,477 | $34.7M | 0.01% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 1,095,336 | $34.2M | 0.01% | −281,628−20.5% | Reduced |
| Invesco Ltd. | 822,026 | $26.2M | 0.01% | −208,495−20.2% | Reduced |
| Charles Schwab Investment Management Inc | 790,769 | $25.2M | 0.01% | +16,310+2.1% | Added |
| Shannon River Fund Management LLC | 781,855 | $24.9M | 3.17% | −149,118−16.0% | Reduced |
| Driehaus Capital Management LLC | 771,153 | $24.6M | 0.30% | +771,153 | New |
| Principal Financial Group Inc | 730,777 | $23.3M | 0.01% | −7,181−1.0% | Reduced |
| Morgan Stanley | 722,224 | $23.0M | 0.00% | −121,268−14.4% | Reduced |
| Glenmede Trust Co NA | 692,895 | $22.1M | 0.11% | −7,065−1.0% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 687,890 | $21.9M | 0.25% | +687,890 | New |
| JPMorgan Chase & Co | 605,860 | $19.3M | 0.00% | −226,180−27.2% | Reduced |
| Epoch Investment Partners, Inc. | 589,694 | $18.8M | 0.09% | +63,288+12.0% | Added |
| Hood River Capital Management LLC | 574,310 | $18.3M | 0.61% | +574,310 | New |
| Millennium Management LLC | 565,357 | $18.0M | 0.02% | −212,677−27.3% | Reduced |
| Barington Capital Group, L.P. | 530,100 | $16.9M | 20.35% | 00.0% | Unchanged |
| Heard Capital LLC | 522,370 | $16.7M | 1.53% | −137,014−20.8% | Reduced |
| Russell Investments Group, Ltd. | 518,610 | $16.5M | 0.03% | +36,816+7.6% | Added |
| Deutsche Bank AG | 459,454 | $14.7M | 0.01% | −200,169−30.3% | Reduced |
| Two Sigma Investments, LP | 444,898 | $14.2M | 0.04% | +261,009+141.9% | Added |
| Great Lakes Advisors, LLC | 444,560 | $14.2M | 0.23% | +69,395+18.5% | Added |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT - Equity & Fixed Income | 441,061 | $14.1M | 1.56% | −40,130−8.3% | Reduced |
| Parametric Portfolio Associates LLC | 433,636 | $13.8M | 0.01% | +77,431+21.7% | Added |
| Goldman Sachs Group Inc | 403,156 | $12.9M | 0.00% | −493,034−55.0% | Reduced |
| Two Sigma Advisers, LP | 391,385 | $12.5M | 0.03% | −133,700−25.5% | Reduced |
| New York State Common Retirement Fund | 387,345 | $12.4M | 0.01% | +587+0.2% | Added |
| Bank of America Corp | 386,408 | $12.3M | 0.00% | +13,797+3.7% | Added |
| Legal & General Group Plc | 315,420 | $10.1M | 0.00% | −2,593−0.8% | Reduced |
| Penn Capital Management Co Inc | 360,549 | $9.87M | 1.01% | +34,242+10.5% | Added |
| Captrust Financial Advisors | 297,488 | $9.49M | 0.06% | +92,344+45.0% | Added |
| Rhumbline Advisers | 295,659 | $9.43M | 0.01% | −4,451−1.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 275,838 | $8.80M | 0.02% | −27,695−9.1% | Reduced |
| Pacer Advisors, Inc. | 270,092 | $8.61M | 0.07% | +270,092 | New |
| Primecap Management Co | 263,163 | $8.39M | 0.01% | −4,800−1.8% | Reduced |
| Swiss National Bank | 258,600 | $8.25M | 0.00% | +19,000+7.9% | Added |
| Credit Suisse AG | 210,652 | $6.72M | 0.01% | −164,468−43.8% | Reduced |
| Public Sector Pension Investment Board | 204,122 | $6.51M | 0.04% | −18,630−8.4% | Reduced |
| Wells Fargo & Company | 197,843 | $6.31M | 0.00% | +29,700+17.7% | Added |
| Thrivent Financial for Lutherans | 193,044 | $6.16M | 0.01% | +104,042+116.9% | Added |
| AXA S.A. | 191,600 | $6.11M | 0.02% | −8,300−4.2% | Reduced |
| HighTower Advisors, LLC | 185,929 | $5.93M | 0.01% | +5,527+3.1% | Added |
| Assenagon Asset Management S.A. | 177,407 | $5.66M | 0.02% | −219,504−55.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 175,828 | $5.61M | 0.04% | −39,962−18.5% | Reduced |
| Eagle Asset Management Inc | 174,818 | $5.57M | 0.03% | +174,818 | New |
| First Trust Advisors LP | 168,720 | $5.38M | 0.01% | +46,768+38.3% | Added |
| EAM Global Investors LLC | 165,228 | $5.27M | 0.97% | +76,291+85.8% | Added |
| Alliancebernstein L.P. | 150,612 | $4.80M | 0.00% | −7,842−4.9% | Reduced |
| Schroder Investment Management Group | 145,350 | $4.70M | 0.01% | +26,385+22.2% | Added |
| China Universal Asset Management Co., Ltd. | 143,000 | $4.56M | 1.61% | +48,000+50.5% | Added |
| UBS Asset Management Americas Inc | 141,620 | $4.52M | 0.00% | −2,471−1.7% | Reduced |
| California State Teachers Retirement System | 139,191 | $4.44M | 0.01% | −12,154−8.0% | Reduced |
| Natixis Advisors, L.P. | 134,031 | $4.27M | 0.02% | +114,596+589.6% | Added |
| Crestline Management, LP | 128,956 | $4.11M | 0.52% | −77,582−37.6% | Reduced |
| Citigroup Inc | 127,284 | $4.06M | 0.00% | −2,738−2.1% | Reduced |
| Public Employees Retirement System of Ohio | 126,755 | $4.04M | 0.01% | −29,607−18.9% | Reduced |
| Stephens Inc | 125,642 | $4.01M | 0.07% | +71,192+130.7% | Added |
| SEI Investments Co | 121,344 | $3.85M | 0.01% | +18,232+17.7% | Added |
| Putnam Investments LLC | 119,765 | $3.82M | 0.01% | −32,475−21.3% | Reduced |
| LPL Financial LLC | 119,724 | $3.82M | 0.00% | −35,114−22.7% | Reduced |
| State of Wisconsin Investment Board | 119,300 | $3.80M | 0.01% | 00.0% | Unchanged |
| EAM Investors, LLC | 119,154 | $3.80M | 0.71% | −18,206−13.3% | Reduced |
| Prudential Financial Inc | 114,091 | $3.64M | 0.00% | −1,440−1.2% | Reduced |
| Affinity Wealth Management LLC | 137,453 | $3.58M | 0.73% | +137,453 | New |
| Yousif Capital Management, LLC | 98,759 | $3.15M | 0.03% | −3,460−3.4% | Reduced |
| Barclays PLC | 97,764 | $3.12M | 0.00% | −240,865−71.1% | Reduced |
| Great West Life Assurance Co | 94,323 | $3.09M | 0.01% | −431−0.5% | Reduced |
| State of New Jersey Common Pension Fund D | 96,127 | $3.06M | 0.01% | −7,018−6.8% | Reduced |
| Stifel Financial Corp | 94,505 | $3.01M | 0.00% | +3,175+3.5% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 94,283 | $3.01M | 0.03% | +11,625+14.1% | Added |
| BNP Paribas Arbitrage, SA | 93,683 | $2.99M | 0.01% | −74,913−44.4% | Reduced |
| Royal Bank of Canada | 91,255 | $2.91M | 0.00% | −193,535−68.0% | Reduced |
| Cambiar Investors LLC | 88,363 | $2.82M | 0.11% | −4,899−5.3% | Reduced |
| State of Tennessee, Treasury Department | 87,734 | $2.80M | 0.01% | +4,653+5.6% | Added |
| Boston Partners | 78,742 | $2.51M | 0.00% | +47,677+153.5% | Added |
| Comerica Bank | 93,076 | $2.48M | 0.02% | −2,222−2.3% | Reduced |
| Texas Permanent School Fund | 77,535 | $2.47M | 0.03% | −1,659−2.1% | Reduced |
| UBS Group AG | 77,274 | $2.46M | 0.00% | +28,487+58.4% | Added |
| Advisor Group Holdings, Inc. | 77,624 | $2.45M | 0.00% | +36,387+88.2% | Added |
| State of Alaska, Department of Revenue | 76,341 | $2.43M | 0.03% | −1,095−1.4% | Reduced |
| Gotham Asset Management, LLC | 75,079 | $2.39M | 0.07% | +26,726+55.3% | Added |
| Squarepoint Ops LLC | 72,734 | $2.32M | 0.02% | +40,095+122.8% | Added |
| Man Group plc | 72,154 | $2.30M | 0.01% | +11,835+19.6% | Added |
| New York State Teachers Retirement System | 65,628 | $2.09M | 0.00% | +2,126+3.3% | Added |
| Los Angeles Capital Management LLC | 64,687 | $2.06M | 0.01% | −960−1.5% | Reduced |
| American International Group, Inc. | 62,218 | $1.98M | 0.01% | −3,815−5.8% | Reduced |