Which hedge funds own RMBS? RAMBUS INC DEL, Q2 2026 13F holders
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12 of the hedge funds tracked by WhaleCreep disclosed a position in RMBS (RAMBUS INC DEL) in their Q2 2026 13F filings, worth $290.1m in total. The largest holder by portfolio weight is Duquesne Family Office LLC at 0.5% of its book. 4 managers opened a new position this quarter: Duquesne Family Office LLC, Tudor Investment, Brevan Howard Capital Management, Discovery Capital Management. 2 exited: Holocene Advisors, Steadfast Capital Management.
12tracked managers holding
4opened this quarter
2exited this quarter
Which hedge funds hold RMBS? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Duquesne Family Office LLC | Q2 2026 | 0.5% | $23.0m | 173,000 | – | new |
| Tudor Investment | Q2 2026 | 0.1% | $20.9m | 157,155 | – | new |
| Brevan Howard Capital Management | Q2 2026 | 0.1% | $5.7m | 43,098 | – | new |
| D. E. Shaw & Co | Q2 2026 | 0.1% | $98.2m | 739,701 | 5677% | added |
| Discovery Capital Management | Q2 2026 | 0.1% | $1.3m | 9,965 | – | new |
| Millennium Management | Q2 2026 | 0.0% | $62.8m | 472,818 | 235% | added |
| Citadel Advisors | Q2 2026 | 0.0% | $53.1m | 400,151 | 2326% | added |
| WCM Investment Management | Q2 2026 | 0.0% | $16.2m | 130,986 | -21% | reduced |
| Marshall Wace | Q2 2026 | 0.0% | $7.5m | 56,425 | 921% | added |
| Maverick Capital | Q2 2026 | 0.0% | $572.0k | 4,309 | -67% | reduced |
| Bridgewater Associates | Q2 2026 | 0.0% | $513.8k | 3,871 | -93% | reduced |
| First Manhattan | Q2 2026 | 0.0% | $331.2k | 2,495 | 0% | held |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Holocene Advisors | 0.1% | $4.3m |
| Steadfast Capital Management | 1.8% | $13.2m |
How has hedge fund ownership of RMBS changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 12 | $290.1m |
| Q1 2026 | 10 | $51.6m |
| Q4 2025 | 5 | $42.8m |
| Q3 2025 | 4 | $67.0m |
| Q2 2025 | 4 | $43.2m |
| Q1 2025 | 4 | $31.7m |
| Q4 2024 | 7 | $37.4m |
| Q3 2024 | 6 | $28.2m |
| Q2 2024 | 2 | $20.9m |
| Q1 2024 | 1 | $22.2m |
| Q4 2023 | 1 | $15.6m |
| Q3 2023 | 4 | $115.5m |
| Q2 2023 | 6 | $77.8m |
| Q1 2023 | 6 | $55.8m |
| Q4 2022 | 3 | $3.1m |
| Q3 2022 | 2 | $1.4m |
Counts every tracked manager that disclosed RMBS in that quarter's filing, including managers that have since stopped filing.