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 |
|---|---|---|---|---|---|
| Trexquant Investment LP | 92,707 | $4.90M | 0.06% | −216,882−70.1% | Reduced |
| Wells Fargo & Company | 97,933 | $5.18M | 0.00% | +21,552+28.2% | Added |
| State of Wisconsin Investment Board | 98,470 | $5.21M | 0.01% | +10,299+11.7% | Added |
| Polen Capital Management LLC | 99,259 | $5.25M | 0.01% | +43,109+76.8% | Added |
| California State Teachers Retirement System | 100,643 | $5.32M | 0.01% | −1,388−1.4% | Reduced |
| Assetmark, Inc | 104,946 | $5.55M | 0.02% | +6,208+6.3% | Added |
| Van Eck Associates Corp | 106,164 | $5.61M | 0.01% | +24,723+30.4% | Added |
| Citadel Advisors LLC | 112,495 | $5.95M | 0.01% | −72,954−39.3% | Reduced |
| Balyasny Asset Management LLC | 113,687 | $6.01M | 0.01% | −106,433−48.4% | Reduced |
| Citigroup Inc | 117,200 | $6.20M | 0.01% | +4,285+3.8% | Added |
| Barington Capital Group, L.P. | 120,000 | $6.34M | 5.78% | −25,100−17.3% | Reduced |
| Royce & Associates LP | 120,135 | $6.35M | 0.06% | +120,135 | New |
| Comerica Bank | 120,657 | $6.38M | 0.03% | +21,647+21.9% | Added |
| Congress Wealth Management LLC | 120,733 | $6.38M | 0.09% | +120,733 | New |
| MetLife Investment Management | 122,295 | $6.46M | 0.04% | +5,761+4.9% | Added |
| UBS Group AG | 122,994 | $6.50M | 0.00% | +42,647+53.1% | Added |
| Manufacturers Life Insurance Company, The | 128,151 | $6.77M | 0.01% | +992+0.8% | Added |
| Retirement Systems of Alabama | 129,587 | $6.85M | 0.03% | −1,219−0.9% | Reduced |
| Deutsche Bank AG | 139,002 | $7.35M | 0.00% | +39,798+40.1% | Added |
| Castleark Management LLC | 139,890 | $7.39M | 0.26% | +139,890 | New |
| Mutual of America Capital Management LLC | 146,140 | $7.72M | 0.08% | −1,980−1.3% | Reduced |
| DekaBank Deutsche Girozentrale | 154,173 | $8.24M | 0.02% | 00.0% | Unchanged |
| Natixis Advisors, L.P. | 158,683 | $8.39M | 0.02% | −136,624−46.3% | Reduced |
| Segall Bryant & Hamill, LLC | 161,041 | $8.51M | 0.12% | +161,041 | New |
| Point72 Asset Management, L.P. | 161,153 | $8.52M | 0.02% | +93,566+138.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 165,658 | $8.76M | 0.02% | −6,130−3.6% | Reduced |
| Corebridge Financial, Inc. | 172,977 | $9.14M | 0.05% | −11,764−6.4% | Reduced |
| California Public Employees Retirement System | 173,736 | $9.18M | 0.01% | −10,267−5.6% | Reduced |
| Osterweis Capital Management Inc | 176,745 | $9.34M | 0.43% | +176,745 | New |
| Qube Research & Technologies Ltd | 181,121 | $9.57M | 0.02% | −192,753−51.6% | Reduced |
| New York State Common Retirement Fund | 182,460 | $9.64M | 0.01% | +22,660+14.2% | Added |
| Stephens Investment Management Group LLC | 190,857 | $10.1M | 0.14% | +33,980+21.7% | Added |
| Swiss National Bank | 211,800 | $11.2M | 0.01% | +1,300+0.6% | Added |
| Penn Capital Management Co Inc | 214,863 | $11.4M | 1.11% | +16,327+8.2% | Added |
| Jane Street Group, LLC | 224,621 | $11.9M | 0.02% | −204,986−47.7% | Reduced |
| Alliancebernstein L.P. | 233,636 | $12.3M | 0.00% | −2,817−1.2% | Reduced |
| Legal & General Group Plc | 233,836 | $12.4M | 0.00% | +5,114+2.2% | Added |
| Canada Pension Plan Investment Board | 235,700 | $12.5M | 0.01% | +235,700 | New |
| HighTower Advisors, LLC | 237,217 | $12.5M | 0.02% | +3,924+1.7% | Added |
| Macquarie Group Ltd | 239,568 | $12.7M | 0.02% | −201,760−45.7% | Reduced |
| Royal Bank of Canada | 243,876 | $12.9M | 0.00% | −65,665−21.2% | Reduced |
| Capital Fund Management S.A. | 246,993 | $13.1M | 0.13% | −75,358−23.4% | Reduced |
| Ameriprise Financial Inc | 249,130 | $13.2M | 0.00% | +20,682+9.1% | Added |
| Barclays PLC | 263,453 | $13.9M | 0.01% | +47,194+21.8% | Added |
| Prudential Financial Inc | 289,241 | $15.3M | 0.02% | +16,571+6.1% | Added |
| UBS Asset Management Americas Inc | 290,392 | $15.4M | 0.00% | +45,967+18.8% | Added |
| Algert Global LLC | 292,592 | $15.5M | 0.36% | +33,251+12.8% | Added |
| Mesirow Institutional Investment Management, Inc. | 298,174 | $15.8M | 1.21% | −101,445−25.4% | Reduced |
| SEI Investments Co | 306,072 | $16.2M | 0.02% | −37,032−10.8% | Reduced |
| Glenmede Trust Co NA | 309,742 | $16.4M | 0.08% | −2,168−0.7% | Reduced |
| AQR Capital Management LLC | 319,731 | $16.9M | 0.02% | −42,521−11.7% | Reduced |
| Principal Financial Group Inc | 330,134 | $17.5M | 0.01% | +4,725+1.5% | Added |
| Rhumbline Advisers | 331,966 | $17.5M | 0.02% | +2,762+0.8% | Added |
| Janus Henderson Group PLC | 343,180 | $18.1M | 0.01% | −8,621−2.5% | Reduced |
| Emerald Mutual Fund Advisers Trust | 356,958 | $18.9M | 1.15% | −64,959−15.4% | Reduced |
| WCM Investment Management, LLC | 386,527 | $20.7M | 0.05% | +34,124+9.7% | Added |
| D. E. Shaw & Co., Inc. | 394,352 | $20.8M | 0.02% | −406,347−50.7% | Reduced |
| Franklin Resources Inc | 406,263 | $21.5M | 0.01% | −6,823−1.7% | Reduced |
| Oberweis Asset Management Inc | 409,400 | $21.6M | 1.02% | +409,400 | New |
| Crestline Management, LP | 410,113 | $21.7M | 0.75% | +151,782+58.8% | Added |
| Bank of America Corp | 415,317 | $22.0M | 0.00% | −250,401−37.6% | Reduced |
| Two Sigma Advisers, LP | 435,300 | $23.0M | 0.05% | −127,600−22.7% | Reduced |
| Panagora Asset Management Inc | 437,679 | $23.1M | 0.11% | −1,608−0.4% | Reduced |
| Silvercrest Asset Management Group LLC | 516,133 | $27.3M | 0.18% | −23,251−4.3% | Reduced |
| Two Sigma Investments, LP | 529,974 | $28.0M | 0.06% | −293,915−35.7% | Reduced |
| Emerald Advisers, LLC | 543,829 | $28.7M | 1.11% | −17,585−3.1% | Reduced |
| SG Americas Securities, LLC | 552,173 | $29.2M | 0.13% | +520,754+1,657.4% | Added |
| Millennium Management LLC | 595,055 | $31.5M | 0.03% | −341,541−36.5% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 735,788 | $38.9M | 0.36% | −727,144−49.7% | Reduced |
| Assenagon Asset Management S.A. | 760,214 | $40.2M | 0.07% | −506,566−40.0% | Reduced |
| Analog Century Management LP | 825,288 | $43.6M | 2.92% | +825,288 | New |
| Congress Asset Management Co | 866,026 | $45.8M | 0.31% | +866,026 | New |
| Morgan Stanley | 914,750 | $48.4M | 0.00% | −676,027−42.5% | Reduced |
| Raymond James Financial Inc | 974,284 | $51.5M | 0.02% | +974,284 | New |
| Goldman Sachs Group Inc | 1,048,840 | $55.4M | 0.01% | +227,985+27.8% | Added |
| Nuveen Asset Management, LLC | 1,064,700 | $56.3M | 0.02% | +116,079+12.2% | Added |
| Voya Investment Management LLC | 1,124,441 | $59.4M | 0.06% | −69,421−5.8% | Reduced |
| Westwood Holdings Group Inc. | 1,127,854 | $59.6M | 0.46% | −302,042−21.1% | Reduced |
| American Century Companies Inc | 1,176,352 | $62.2M | 0.04% | +74,478+6.8% | Added |
| Wellington Management Group LLP | 1,248,445 | $66.0M | 0.01% | −210,286−14.4% | Reduced |
| Charles Schwab Investment Management Inc | 1,249,746 | $66.1M | 0.01% | +5,761+0.5% | Added |
| Westfield Capital Management Co LP | 1,389,538 | $73.5M | 0.32% | +487,302+54.0% | Added |
| Northern Trust Corp | 1,463,338 | $77.4M | 0.01% | +170,884+13.2% | Added |
| Neuberger Berman Group LLC | 1,658,364 | $87.7M | 0.07% | −88,899−5.1% | Reduced |
| Swedbank AB | 1,700,000 | $89.9M | 0.11% | −43,000−2.5% | Reduced |
| Dimensional Fund Advisors LP | 1,734,188 | $91.7M | 0.02% | −27,060−1.5% | Reduced |
| Norges Bank | 1,785,242 | $94.4M | 0.01% | +498,710+38.8% | Added |
| Bank of New York Mellon Corp | 2,095,974 | $110.8M | 0.02% | −67,225−3.1% | Reduced |
| Geode Capital Management, LLC | 2,577,185 | $136.3M | 0.01% | −44,157−1.7% | Reduced |
| JPMorgan Chase & Co | 4,184,370 | $221.2M | 0.02% | +68,975+1.7% | Added |
| State Street Corp | 4,737,415 | $250.4M | 0.01% | −81,710−1.7% | Reduced |
| Invesco Ltd. | 4,999,748 | $264.3M | 0.05% | +2,093,953+72.1% | Added |
| Price T Rowe Associates Inc | 5,449,128 | $288.0M | 0.03% | +4,445,146+442.8% | Added |
| Vanguard Group Inc | 12,594,979 | $665.8M | 0.01% | +31,645+0.3% | Added |
| BlackRock, Inc. | 14,139,062 | $747.4M | 0.02% | +445,878+3.3% | Added |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −551,769−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −449,655−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −257,057−100.0% | Sold out |
| M&G Plc | 0 | $0 | 0.00% | −233,121−100.0% | Sold out |
| Seven Eight Capital, LP | 0 | $0 | 0.00% | −137,817−100.0% | Sold out |