蘭巴斯公司
US ˙ NasdaqGS ˙ US7509171069

SecurityRMBS / Rambus Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership187,067 shares
Latest Disclosed Value $ 11,976,029
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 2.73% increase in ownership of RMBS / Rambus Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 187,067 shares of Rambus Inc. (US:RMBS) valued at $11,976,029 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 182,104 shares of Rambus Inc.. This represents a change in shares of 2.73% during the quarter. The current value of the position is $27,182,706 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)
2025-08-26 2025-06-30 NP Rambus EC US7509171069 187,067 4,963 2.73 11,976 27.03 0.2689
2025-05-28 2025-03-31 NP Rambus EC US7509171069 182,104 1,934 1.07 9,428 -1.00 0.2262
2025-02-25 2024-12-31 NP Rambus EC US7509171069 180,170 -34,317 -16.00 9,524 5.17 0.2080
2024-11-26 2024-09-30 NP Rambus EC US7509171069 214,487 10,361 5.08 9,056 -24.50 0.1713
2024-08-26 2024-06-30 NP Rambus EC US7509171069 204,126 15,191 8.04 11,994 2.71 0.2443
2024-05-28 2024-03-31 NP Rambus EC US7509171069 188,935 -9,758 -4.91 11,678 -13.88 0.2437
2024-02-26 2023-12-31 NP Rambus EC US7509171069 198,693 13,653 7.38 13,561 31.36 0.2894
2023-11-28 2023-09-30 NP Rambus EC US7509171069 185,040 -3,483 -1.85 10,323 -14.66 0.2693
2023-08-25 2023-06-30 NP Rambus EC US7509171069 188,523 18,622 10.96 12,098 38.90 0.2869
2023-05-26 2023-03-31 NP Rambus EC US7509171069 169,901 2,380 1.42 8,709 45.15 0.2319
2023-02-24 2022-12-31 NP Rambus EC US7509171069 167,521 -7,150 -4.09 6,001 35.14 0.1651
2022-11-25 2022-09-30 NP Rambus EC US7509171069 174,671 1,642 0.95 4,440 19.42 0.1272
2022-08-25 2022-06-30 NP Rambus EC US7509171069 173,029 4,651 2.76 3,718 -30.75 0.1027
2022-05-26 2022-03-31 NP Rambus EC US7509171069 168,378 3,245 1.97 5,370 10.63 0.1251
2022-02-25 2021-12-31 NP Rambus EC US7509171069 165,133 0 0.00 4,853 32.41 0.1053
2021-11-24 2021-09-30 NP Rambus EC US7509171069 165,133 -7,569 -4.38 3,666 -10.48 0.0808
2021-08-26 2021-06-30 NP Rambus EC US7509171069 172,702 0 0.00 4,095 21.95 0.0878
2021-05-27 2021-03-31 NP Rambus EC US7509171069 172,702 -4,142 -2.34 3,357 8.75 0.0761
2021-02-25 2020-12-31 NP Rambus EC US7509171069 176,844 -7,658 -4.15 3,088 22.26 0.0791
2020-11-25 2020-09-30 NP Rambus EC US7509171069 184,502 -7,186 -3.75 2,526 -13.32 0.0811
2020-08-27 2020-06-30 NP Rambus EC US7509171069 191,688 11,333 6.28 2,914 45.58 0.0952
2020-06-01 2020-03-31 NP Rambus EC US7509171069 180,355 9,975 5.85 2,002 -14.71 0.0818
2020-02-27 2019-12-31 NP Rambus EC 750917106 170,380 -4,488 -2.57 2,347 2.22 0.0706
2019-11-27 2019-09-30 NP Rambus EC US7509171069 174,868 174,868 2,295 0.0759
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.