Rambus Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| BLACKROCK, INC. | 08/12/2025 | 15.00 M | $960.31 M | 5.36% | 13.97% |
| EDGEPOINT INVESTMENT GROUP INC. | 08/14/2025 | 2.79 M | $178.44 M | 138.40% | 2.60% |
| WESTWOOD HOLDINGS GROUP INC | 08/18/2025 | 1.74 M | $111.21 M | 40.97% | 1.62% |
| SWEDBANK AB | 07/10/2025 | 1.70 M | $108.83 M | 0.00% | 1.58% |
| RAYMOND JAMES FINANCIAL INC | 08/14/2025 | 1.37 M | $87.84 M | 46.01% | 1.28% |
| CONGRESS ASSET MANAGEMENT CO /MA | 07/16/2025 | 1.28 M | $81.75 M | 6.45% | 1.19% |
| MORGAN STANLEY | 08/15/2025 | 1.16 M | $74.47 B | 24.01% | 1.08% |
| 08/12/2025 | 1.14 M | $72.71 M | 3.00% | 1.06% | |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 08/12/2025 | 962.42 K | $61.61 M | -11.63% | 0.90% |
| HOOD RIVER CAPITAL MANAGEMENT LLC | 08/14/2025 | 955.60 K | $61.18 M | 1.13% | 0.89% |
| ASSENAGON ASSET MANAGEMENT S.A. | 07/11/2025 | 881.56 K | $56.44 M | 392.88% | 0.82% |
| ANALOG CENTURY MANAGEMENT LP | 08/14/2025 | 827.10 K | $52.95 M | 21.61% | 0.77% |
| EMERALD ADVISERS, LLC | 08/04/2025 | 710.12 K | $45.46 M | 33.81% | 0.66% |
| AQR CAPITAL MANAGEMENT LLC | 08/14/2025 | 701.75 K | $44.93 B | 192.85% | 0.65% |
| PARK WEST ASSET MANAGEMENT LLC | 08/14/2025 | 660.00 K | $42.25 M | 12.03% | 0.61% |
| OBERWEIS ASSET MANAGEMENT INC/ | 08/14/2025 | 505.78 K | $32.38 M | -0.31% | 0.47% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 08/14/2025 | 480.45 K | $30.76 M | -6.51% | 0.45% |
| WCM INVESTMENT MANAGEMENT, LLC | 07/29/2025 | 416.90 K | $26.68 M | 7.27% | 0.39% |
| EMERALD MUTUAL FUND ADVISERS TRUST | 08/04/2025 | 416.12 K | $26.64 M | 35.94% | 0.39% |
| SCHWARTZ INVESTMENT COUNSEL INC | 07/30/2025 | 380.34 K | $24.35 M | 0.00% | 0.35% |
| QUBE RESEARCH & TECHNOLOGIES LTD | 08/14/2025 | 349.27 K | $22.36 M | 42.63% | 0.33% |
| FMR LLC | 08/14/2025 | 338.26 K | $21.66 B | 694.64% | 0.31% |
| LORD, ABBETT & CO. LLC | 08/14/2025 | 318.32 K | $20.38 M | -6.92% | 0.30% |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 08/14/2025 | 312.95 K | $20.04 M | 100.00% | 0.29% |
| GLENMEDE INVESTMENT MANAGEMENT, LP | 08/14/2025 | 297.44 K | $19.04 M | 100.00% | 0.28% |
| PENN CAPITAL MANAGEMENT COMPANY, LLC | 08/14/2025 | 286.26 K | $18.38 M | 15.98% | 0.27% |
| OSTERWEIS CAPITAL MANAGEMENT INC | 08/14/2025 | 284.41 K | $18.21 M | -0.66% | 0.26% |
| ALLIANCEBERNSTEIN L.P. | 08/14/2025 | 270.87 K | $17.34 B | 18.91% | 0.25% |
| 08/14/2025 | 268.90 K | $17.21 M | 17.85% | 0.25% | |
| SEGALL BRYANT & HAMILL, LLC | 08/12/2025 | 262.58 K | $16.81 M | -8.11% | 0.24% |
| ROYAL BANK OF CANADA | 08/14/2025 | 240.22 K | $15.38 M | 19.09% | 0.22% |
| BRIDGEWATER ASSOCIATES, LP | 08/13/2025 | 226.87 K | $14.52 M | 190.56% | 0.21% |
| LOOMIS SAYLES & CO L P | 08/13/2025 | 220.23 K | $14.10 M | 100.00% | 0.21% |
| LAZARD ASSET MANAGEMENT LLC | 08/14/2025 | 214.44 K | $13.73 M | 97.50% | 0.20% |
| BNP PARIBAS ARBITRAGE, SNC | 08/14/2025 | 209.33 K | $13.40 B | 159.49% | 0.19% |
| STEPHENS INVESTMENT MANAGEMENT GROUP LLC | 07/30/2025 | 195.12 K | $12.49 M | 0.75% | 0.18% |
| CONGRESS WEALTH MANAGEMENT LLC / DE / | 08/13/2025 | 191.23 K | $12.24 M | 4.69% | 0.18% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS LTD. | 08/14/2025 | 174.22 K | $11.15 M | -4.77% | 0.16% |
| ALGERT GLOBAL LLC | 08/14/2025 | 170.84 K | $10.94 M | -0.26% | 0.16% |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 08/14/2025 | 170.00 K | $10.88 M | 100.00% | 0.16% |
| DEKABANK DEUTSCHE GIROZENTRALE | 07/30/2025 | 154.17 K | $10.00 M | 0.00% | 0.14% |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC | 07/29/2025 | 151.85 K | $9.72 M | 4.78% | 0.14% |
| CANADA PENSION PLAN INVESTMENT BOARD | 08/14/2025 | 141.50 K | $9.06 M | 0.57% | 0.13% |
| MAN GROUP PLC | 08/14/2025 | 141.29 K | $9.05 M | 401.96% | 0.13% |
| RETIREMENT SYSTEMS OF ALABAMA | 08/04/2025 | 131.28 K | $8.40 M | 1.21% | 0.12% |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 08/13/2025 | 130.62 K | $8.36 M | 100.00% | 0.12% |
| GRANAHAN INVESTMENT MANAGEMENT, LLC | 08/14/2025 | 130.08 K | $8.33 M | 1.09% | 0.12% |
| ASSETMARK, INC | 08/04/2025 | 125.56 K | $8.04 M | 9.70% | 0.12% |
| RENAISSANCE GROUP LLC | 08/11/2025 | 121.59 K | $7.78 M | 29.82% | 0.11% |
| CASTLEARK MANAGEMENT LLC | 08/18/2025 | 114.70 K | $7.34 M | -2.88% | 0.11% |
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Rambus Inc. institutional Ownership - FAQ's
During the previous two years, 507 institutional investors and hedge funds held shares of Rambus Inc.. The most heavily invested institutionals were:
BlackRock, Inc.: 15 M
EdgePoint Investment Group Inc.: 2.79 M
WESTWOOD HOLDINGS GROUP INC: 1.74 M
Swedbank AB: 1.7 M
RAYMOND JAMES FINANCIAL INC: 1.37 M
CONGRESS ASSET MANAGEMENT CO /MA: 1.28 M
90.27% of Rambus Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 87.36 M shares in the last 24 months. This purchase volume represents approximately $6.16 B in transactions.