Rambus Inc.
US ˙ NasdaqGS ˙ US7509171069

SecurityRMBS / Rambus Inc.
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Macquarie Group Ltd closes position in RMBS / Rambus Inc.

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 0 shares of Rambus Inc. (US:RMBS) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 163 shares of Rambus Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F RAMBUS INC DEL COM 750917106 0 -100.00 0
2026-02-13 2025-12-31 13F RAMBUS INC DEL COM 750917106 163 -292,042 -99.94 15 -99.95 0.0001
2025-11-13 2025-09-30 13F RAMBUS INC DEL COM 750917106 292,205 36,112 14.10 30,447 85.71 0.0355
2025-08-14 2025-06-30 13F RAMBUS INC DEL COM 750917106 256,093 613 0.24 16,395 23.95 0.0201
2025-08-14 2025-03-31 13F/A-1 RAMBUS INC DEL COM 750917106 255,480 15,912 6.64 13,227 4.45 0.0164
2025-05-15 2025-03-31 13F RAMBUS INC DEL COM 750917106 255,480 15,912 13,227 0.0108
2025-02-14 2024-12-31 13F RAMBUS INC DEL COM 750917106 239,568 -201,760 -45.72 12,664 -32.03 0.0154
2024-11-14 2024-09-30 13F RAMBUS INC DEL COM 750917106 441,328 -109,213 -19.84 18,633 -42.40 0.0201
2024-08-09 2024-06-30 13F RAMBUS INC DEL COM 750917106 550,541 -65,562 -10.64 32,350 -15.05 0.0371
2024-05-14 2024-03-31 13F RAMBUS INC DEL COM 750917106 616,103 -127,645 -17.16 38,081 -24.98 0.0432
2024-02-14 2023-12-31 13F RAMBUS INC DEL COM 750917106 743,748 104,942 16.43 50,761 42.43 0.0586
2023-11-14 2023-09-30 13F RAMBUS INC DEL COM 750917106 638,806 293,904 85.21 35,639 61.03 0.0448
2023-10-27 2023-06-30 13F/A-2 RAMBUS INC DEL COM 750917106 344,902 344,902 22,132 40,885.19 0.0253
2023-10-12 2023-06-30 13F/A-1 RAMBUS INC DEL COM 750917106 344,902 344,902 22,132 0.0222
2023-08-14 2023-06-30 13F RAMBUS INC DEL COM 750917106 344,902 344,902 22,132 0.0225
2022-11-14 2022-09-30 13F RAMBUS INC DEL COM 750917106 0 -2,114 -100.00 54 20.00 0.0001
2022-08-17 2022-06-30 13F/A-1 RAMBUS INC DEL COM 750917106 2,114 0 0.00 45 -32.84 0.0001
2022-08-15 2022-06-30 13F RAMBUS INC DEL COM 750917106 2,114 0 45 0.0000
2022-05-16 2022-03-31 13F RAMBUS INC DEL COM 750917106 2,114 0 0.00 67 8.06 0.0001
2022-02-11 2021-12-31 13F RAMBUS INC DEL COM 750917106 2,114 -911 -30.12 62 -7.46 0.0001
2021-11-12 2021-09-30 13F RAMBUS INC DEL COM 750917106 3,025 0 0.00 67 -6.94 0.0001
2021-08-13 2021-06-30 13F RAMBUS INC DEL COM 750917106 3,025 0 0.00 72 22.03 0.0001
2021-05-14 2021-03-31 13F RAMBUS INC DEL COM 750917106 3,025 -9,104 -75.06 59 -72.17 0.0001
2021-02-16 2020-12-31 13F RAMBUS INC DEL COM 750917106 12,129 0 0.00 212 27.71 0.0003
2020-11-13 2020-09-30 13F RAMBUS INC DEL COM 750917106 12,129 9,428 349.06 166 304.88 0.0003
2020-08-11 2020-06-30 13F RAMBUS INC DEL COM 750917106 2,701 2,701 41 0.0001
2019-03-21 2018-06-30 13F/A-1 RAMBUS INC DEL COM 750917106 0 -2,100 -100.00 0 -100.00
2018-05-11 2018-03-31 13F RAMBUS INC DEL COM 750917106 2,100 2,100 28 0.0001
2015-02-17 2014-12-31 13F RAMBUS COMMON 750917106 0 -92 -100.00 0 -100.00
2014-11-14 2014-09-30 13F RAMBUS COMMON 750917106 92 92 1 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.