RAMBUS INC DEL (RMBS): Institutional Ownership
Hedge funds and institutional managers reporting a position in RMBS · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
21
13F filers
Aggregate Value
$124.8M
Across holders
Last Price
$114.73
2026-06-26
Sector
Information Technology
GICS
Holder activity10 new2 added7 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| Fisher Asset Management, LLC CIK 0000850529 | Institutional Manager | 738K | $63.5M | 50.9% | 0.0% | Added | +$19.0M | Q1 2026 |
| STEADFAST CAPITAL MANAGEMENT LP CIK 0001214822 | Hedge Fund | 153K | $13.2M | 10.6% | 0.5% | New | — | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 102K | $9.3M | 7.5% | 0.0% | New | — | Q4 2025 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 77K | $6.7M | 5.3% | 0.0% | Reduced | $-5.8M | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 114K | $6.0M | 4.8% | 0.0% | New | — | Q4 2024 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 52K | $4.5M | 3.6% | 0.0% | Reduced | $-8.8M | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 50K | $4.3M | 3.4% | 0.0% | New | — | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 50K | $4.3M | 3.4% | 0.0% | Reduced | $-2.6M | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 48K | $4.1M | 3.3% | 0.0% | Added | +$2.3M | Q1 2026 |
| PRIMECAP MANAGEMENT CO/CA/ CIK 0000763212 | Institutional Manager | 48K | $4.1M | 3.3% | 0.0% | Unchanged | +$0 | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 24K | $1.5M | 1.2% | 0.0% | New | — | Q2 2025 |
| MAVERICK CAPITAL LTD CIK 0000934639 | Hedge Fund | 13K | $1.1M | 0.9% | 0.0% | New | — | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 6K | $519K | 0.4% | 0.0% | New | — | Q4 2025 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 6K | $505K | 0.4% | 0.0% | Reduced | $-1.0M | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 6K | $475K | 0.4% | 0.0% | Reduced | $-927K | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 4K | $376K | 0.3% | 0.0% | New | — | Q4 2025 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 4K | $322K | 0.3% | 0.0% | New | — | Q4 2025 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 490 | $41K | 0.0% | 0.0% | Reduced | $-123K | Q1 2026 |
| Ancora Advisors, LLC CIK 0001446114 | Hedge Fund | 107 | $5K | 0.0% | 0.0% | New | — | Q1 2023 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 19 | $2K | 0.0% | 0.0% | Reduced | $-5.0M | Q1 2026 |
Added
Institutional Manager
$63.5M· 50.9% of total· 0.0% port· 738K sh· +$19.0M QoQ· Q1 2026
New
Hedge Fund
$13.2M· 10.6% of total· 0.5% port· 153K sh· — QoQ· Q1 2026
New
Hedge Fund
$9.3M· 7.5% of total· 0.0% port· 102K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$6.7M· 5.3% of total· 0.0% port· 77K sh· $-5.8M QoQ· Q1 2026
New
Hedge Fund
$6.0M· 4.8% of total· 0.0% port· 114K sh· — QoQ· Q4 2024
Reduced
Hedge Fund
$4.5M· 3.6% of total· 0.0% port· 52K sh· $-8.8M QoQ· Q1 2026
New
Hedge Fund
$4.3M· 3.4% of total· 0.0% port· 50K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$4.3M· 3.4% of total· 0.0% port· 50K sh· $-2.6M QoQ· Q1 2026
Added
Hedge Fund
$4.1M· 3.3% of total· 0.0% port· 48K sh· +$2.3M QoQ· Q1 2026
Unchanged
Institutional Manager
$4.1M· 3.3% of total· 0.0% port· 48K sh· +$0 QoQ· Q1 2026
New
Hedge Fund
$1.5M· 1.2% of total· 0.0% port· 24K sh· — QoQ· Q2 2025
New
Hedge Fund
$1.1M· 0.9% of total· 0.0% port· 13K sh· — QoQ· Q1 2026
New
Hedge Fund
$519K· 0.4% of total· 0.0% port· 6K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$505K· 0.4% of total· 0.0% port· 6K sh· $-1.0M QoQ· Q1 2026
Reduced
Hedge Fund
$475K· 0.4% of total· 0.0% port· 6K sh· $-927K QoQ· Q1 2026
New
Hedge Fund
$376K· 0.3% of total· 0.0% port· 4K sh· — QoQ· Q4 2025
New
Hedge Fund
$322K· 0.3% of total· 0.0% port· 4K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$41K· 0.0% of total· 0.0% port· 490 sh· $-123K QoQ· Q1 2026
New
Hedge Fund
$5K· 0.0% of total· 0.0% port· 107 sh· — QoQ· Q1 2023
Reduced
Hedge Fund
$2K· 0.0% of total· 0.0% port· 19 sh· $-5.0M QoQ· Q1 2026
Unchanged
Hedge Fund
$52· 0.0% of total· 0.0% port· 1 sh· +$0 QoQ· Q1 2025
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