Rambus Inc.
US ˙ NasdaqGS ˙ US7509171069

SecurityRMBS / Rambus Inc.
InstitutionRoyce Value Trust Inc
Latest Disclosed Ownership33,945 shares
Latest Disclosed Value $ 2,173,158
Royce Value Trust Inc reports 63.32% decrease in ownership of RMBS / Rambus Inc.

On August 15, 2025 - Royce Value Trust Inc filed a NPORT-P form disclosing ownership of 33,945 shares of Rambus Inc. (US:RMBS) valued at $2,173,159 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 19, 2025 disclosing 92,554 shares of Rambus Inc.. This represents a change in shares of -63.32% during the quarter. The current value of the position is $4,931,869 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.

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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)
2025-08-15 2025-06-30 NP Rambus EC US7509171069 33,945 -58,609 -63.32 2,173 -54.64 0.1085
2025-05-19 2025-03-31 NP Rambus EC US7509171069 92,554 27,903 43.16 4,792 40.21 0.2604
2025-02-21 2024-12-31 NP Rambus EC US7509171069 64,651 62,412 2,787.49 3,417 3,535.11 0.1710
2024-11-19 2024-09-30 NP Rambus EC US7509171069 2,239 -103,079 -97.87 95 -98.48 0.0047
2024-08-12 2024-06-30 NP Rambus EC US7509171069 105,318 1,250 1.20 6,188 -3.79 0.3244
2024-05-28 2024-03-31 NP Rambus EC US7509171069 104,068 13,367 14.74 6,432 3.91 0.3288
2024-02-20 2023-12-31 NP Rambus EC US7509171069 90,701 -20,742 -18.61 6,190 -0.43 0.3321
2023-11-22 2023-09-30 NP Rambus EC US7509171069 111,443 -19,984 -15.21 6,217 -26.28 0.3738
2023-08-09 2023-06-30 NP Rambus EC US7509171069 131,427 1,330 1.02 8,434 26.47 0.4810
2023-05-19 2023-03-31 NP Rambus EC US7509171069 130,097 -31,013 -19.25 6,669 15.56 0.3951
2023-02-21 2022-12-31 NP Rambus EC US7509171069 161,110 -170,180 -51.37 5,771 -31.48 0.3595
2022-11-17 2022-09-30 NP Rambus EC US7509171069 331,290 7,400 2.28 8,421 20.99 0.5705
2022-08-16 2022-06-30 NP Rambus EC US7509171069 323,890 309,902 2,215.48 6,960 2,145.16 0.4401
2021-11-22 2021-09-30 NP Rambus EC US7509171069 13,988 -22,993 -62.18 311 -64.61 0.0149
2021-08-24 2021-06-30 NP Rambus EC US7509171069 36,981 -8,985 -19.55 877 -1.90 0.0405
2021-05-17 2021-03-31 NP Rambus EC US7509171069 45,966 -21,924 -32.29 894 -24.64 0.0428
2021-02-19 2020-12-31 NP Rambus EC US7509171069 67,890 -906 -1.32 1,185 25.93 0.0628
2020-11-24 2020-09-30 NP Rambus EC US7509171069 68,796 0 0.00 942 -9.95 0.0623
2020-08-19 2020-06-30 NP Rambus EC US7509171069 68,796 -4,158 -5.70 1,046 29.17 0.0726
2020-05-27 2020-03-31 NP Rambus EC US7509171069 72,954 -4,960 -6.37 810 -24.60 0.0723
2020-02-19 2019-12-31 NP Rambus EC 750917106 77,914 2,257 2.98 1,073 8.17 0.0659
2019-11-25 2019-09-30 NP Rambus EC US7509171069 75,657 75,657 993 0.0663
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.