Rambus Inc.
US ˙ NasdaqGS ˙ US7509171069

SecurityRMBS / Rambus Inc.
InstitutionLPL Financial LLC
Latest Disclosed Ownership87,964 shares
Latest Disclosed Value $ 7,567,529
LPL Financial LLC reports 4.06% increase in ownership of RMBS / Rambus Inc.

On May 6, 2026 - LPL Financial LLC filed a 13F-HR form disclosing ownership of 87,964 shares of Rambus Inc. (US:RMBS) valued at $7,567,543 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 84,535 shares of Rambus Inc.. This represents a change in shares of 4.06% during the quarter. The current value of the position is $12,782,049 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)
2026-05-06 2026-03-31 13F RAMBUS INC DEL COM 750917106 87,964 3,429 4.06 7,568 -2.57 0.0020
2026-02-11 2025-12-31 13F RAMBUS INC DEL COM 750917106 84,535 -16,066 -15.97 7,768 -25.90 0.0021
2025-11-12 2025-09-30 13F RAMBUS INC DEL COM 750917106 100,601 13,418 15.39 10,483 87.82 0.0031
2025-08-12 2025-06-30 13F RAMBUS INC DEL COM 750917106 87,183 7,167 8.96 5,581 34.74 0.0019
2025-05-07 2025-03-31 13F RAMBUS INC DEL COM 750917106 80,016 16,652 26.28 4,143 23.68 0.0016
2025-02-11 2024-12-31 13F RAMBUS INC DEL COM 750917106 63,364 9,183 16.95 3,349 46.44 0.0014
2024-11-08 2024-09-30 13F RAMBUS INC DEL COM 750917106 54,181 -33,493 -38.20 2,288 -55.60 0.0010
2024-08-07 2024-06-30 13F RAMBUS INC DEL COM 750917106 87,674 -7,193 -7.58 5,152 -12.14 0.0026
2024-05-10 2024-03-31 13F RAMBUS INC DEL COM 750917106 94,867 -1,035 -1.08 5,864 -10.42 0.0031
2024-02-14 2023-12-31 13F RAMBUS INC DEL COM 750917106 95,902 -1,103 -1.14 6,545 20.96 0.0040
2023-11-13 2023-09-30 13F RAMBUS INC DEL COM 750917106 97,005 -5,393 -5.27 5,412 -17.64 0.0038
2023-07-31 2023-06-30 13F RAMBUS INC DEL COM 750917106 102,398 11,628 12.81 6,571 41.23 0.0047
2023-05-10 2023-03-31 13F RAMBUS INC DEL COM 750917106 90,770 -25,115 -21.67 4,653 12.10 0.0036
2023-02-07 2022-12-31 13F RAMBUS INC DEL COM 750917106 115,885 -2,108 -1.79 4,151 38.38 0.0036
2022-11-14 2022-09-30 13F RAMBUS INC DEL COM 750917106 117,993 782 0.67 2,999 19.06 0.0029
2022-08-12 2022-06-30 13F RAMBUS INC DEL COM 750917106 117,211 -2,513 -2.10 2,519 -34.02 0.0024
2022-05-16 2022-03-31 13F RAMBUS INC DEL COM 750917106 119,724 -35,114 -22.68 3,818 -16.11 0.0033
2022-02-14 2021-12-31 13F RAMBUS INC DEL COM 750917106 154,838 2,494 1.64 4,551 34.57 0.0038
2021-11-15 2021-09-30 13F RAMBUS INC DEL COM 750917106 152,344 -12,004 -7.30 3,382 -13.22 0.0032
2021-08-13 2021-06-30 13F RAMBUS INC DEL COM 750917106 164,348 4,881 3.06 3,897 25.71 0.0039
2021-05-14 2021-03-31 13F RAMBUS INC DEL COM 750917106 159,467 -7,775 -4.65 3,100 6.16 0.0036
2021-02-12 2020-12-31 13F RAMBUS INC DEL COM 750917106 167,242 18,715 12.60 2,920 43.63 0.0038
2020-11-09 2020-09-30 13F RAMBUS INC DEL COM 750917106 148,527 55,327 59.36 2,033 43.47 0.0032
2020-08-13 2020-06-30 13F RAMBUS INC DEL COM 750917106 93,200 75,238 418.87 1,417 612.06 0.0025
2020-05-14 2020-03-31 13F RAMBUS INC DEL COM 750917106 17,962 17,962 199 0.0004
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.