Rambus Inc.
US ˙ NasdaqGS ˙ US7509171069

SecurityRMBS / Rambus Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership158,704 shares
Latest Disclosed Value $ 13,653,306
Legal & General Group Plc reports 10.64% decrease in ownership of RMBS / Rambus Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 158,704 shares of Rambus Inc. (US:RMBS) valued at $13,653,305 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 177,596 shares of Rambus Inc.. This represents a change in shares of -10.64% during the quarter. The current value of the position is $23,061,278 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)
2026-05-08 2026-03-31 13F RAMBUS INC DEL COM 750917106 158,704 -18,892 -10.64 13,653 -16.34 0.0017
2026-02-09 2025-12-31 13F RAMBUS INC DEL COM 750917106 177,596 -42,118 -19.17 16,319 -28.72 0.0036
2025-11-13 2025-09-30 13F RAMBUS INC DEL COM 750917106 219,714 -10,483 -4.55 22,894 55.35 0.0051
2025-08-12 2025-06-30 13F RAMBUS INC DEL COM 750917106 230,197 270 0.12 14,737 23.80 0.0037
2025-05-15 2025-03-31 13F RAMBUS INC DEL COM 750917106 229,927 -3,909 -1.67 11,904 -3.69 0.0032
2025-02-13 2024-12-31 13F RAMBUS INC DEL COM 750917106 233,836 5,114 2.24 12,361 28.00 0.0033
2025-02-28 2024-09-30 13F/A-2 RAMBUS INC DEL COM 750917106 228,722 7,910 3.58 9,657 -25.57 0.0025
2024-11-14 2024-09-30 13F/A-1 RAMBUS INC DEL COM 750917106 239,677 7,910 10,119 0.0021
2024-11-14 2024-09-30 13F RAMBUS INC DEL COM 750917106 239,677 7,910 10,119 0.0011
2025-05-29 2024-06-30 13F/A-1 RAMBUS INC DEL COM 750917106 220,812 -26,084 -10.56 12,975 -14.98 0.0037
2024-08-14 2024-06-30 13F RAMBUS INC DEL COM 750917106 231,767 -15,129 13,619 0.0030
2025-05-29 2024-03-31 13F/A-2 RAMBUS INC DEL COM 750917106 246,896 -11,654 -4.51 15,261 -13.52 0.0044
2024-07-01 2024-03-31 13F/A-1 RAMBUS INC DEL COM 750917106 246,896 -11,654 15,261 0.0036
2024-05-14 2024-03-31 13F RAMBUS INC DEL COM 750917106 238,313 -20,237 14,730 0.0018
2025-05-29 2023-12-31 13F/A-1 RAMBUS INC DEL COM 750917106 258,550 -138,715 -34.92 17,646 -20.38 0.0055
2024-02-15 2023-12-31 13F RAMBUS INC DEL COM 750917106 258,550 -138,715 17,646 0.0045
2023-11-14 2023-09-30 13F RAMBUS INC DEL COM 750917106 397,265 -16,035 -3.88 22,163 -16.43 0.0077
2023-08-14 2023-06-30 13F RAMBUS INC DEL COM 750917106 413,300 98,879 31.45 26,521 64.55 0.0086
2023-05-15 2023-03-31 13F RAMBUS INC DEL COM 750917106 314,421 615 0.20 16,117 43.39 0.0058
2023-02-14 2022-12-31 13F RAMBUS INC DEL COM 750917106 313,806 -2,394 -0.76 11,241 39.84 0.0043
2022-11-14 2022-09-30 13F RAMBUS INC DEL COM 750917106 316,200 -3,446 -1.08 8,038 17.00 0.0031
2022-08-22 2022-06-30 13F RAMBUS INC DEL COM 750917106 319,646 4,226 1.34 6,870 -31.70 0.0024
2022-05-16 2022-03-31 13F RAMBUS INC DEL COM 750917106 315,420 -2,593 -0.82 10,059 7.63 0.0031
2022-02-14 2021-12-31 13F RAMBUS INC DEL COM 750917106 318,013 8,539 2.76 9,346 36.04 0.0028
2021-11-15 2021-09-30 13F RAMBUS INC DEL COM 750917106 309,474 15,688 5.34 6,870 -1.38 0.0022
2021-08-12 2021-06-30 13F RAMBUS INC DEL COM 750917106 293,786 -74,340 -20.19 6,966 -2.66 0.0023
2021-05-17 2021-03-31 13F RAMBUS INC DEL COM 750917106 368,126 -2,067 -0.56 7,156 10.71 0.0027
2021-02-12 2020-12-31 13F RAMBUS INC DEL COM 750917106 370,193 14,813 4.17 6,464 32.87 0.0025
2020-11-13 2020-09-30 13F RAMBUS INC DEL COM 750917106 355,380 2,417 0.68 4,865 -9.32 0.0022
2020-08-14 2020-06-30 13F RAMBUS INC DEL COM 750917106 352,963 26,787 8.21 5,365 48.16 0.0026
2020-05-14 2020-03-31 13F RAMBUS INC DEL COM 750917106 326,176 1,472 0.45 3,621 -19.05 0.0021
2020-02-13 2019-12-31 13F RAMBUS INC DEL COM 750917106 324,704 25,343 8.47 4,473 24.08 0.0021
2019-08-14 2019-06-30 13F RAMBUS INC DEL COM 750917106 299,361 1,777 0.60 3,605 15.92 0.0019
2019-05-15 2019-03-31 13F RAMBUS INC DEL COM 750917106 297,584 26,418 9.74 3,110 49.38 0.0018
2019-02-15 2018-12-31 13F RAMBUS INC DEL COM 750917106 271,166 18,022 7.12 2,082 -24.65 0.0016
2018-11-20 2018-09-30 13F RAMBUS INC DEL COM 750917106 253,144 17,482 7.42 2,763 -7.62 0.0020
2018-08-10 2018-06-30 13F RAMBUS INC DEL COM 750917106 235,662 6,830 2.98 2,991 -2.45 0.0023
2018-05-17 2018-03-31 13F RAMBUS INC DEL COM 750917106 228,832 4,888 2.18 3,066 -3.74 0.0023
2018-02-13 2017-12-31 13F RAMBUS INC DEL COM 750917106 223,944 273 0.12 3,185 6.63 0.0023
2017-11-09 2017-09-30 13F RAMBUS INC DEL COM 750917106 223,671 7,187 3.32 2,987 20.69 0.0022
2017-08-03 2017-06-30 13F RAMBUS INC DEL COM 750917106 216,484 23,686 12.29 2,475 -2.25 0.0020
2017-05-12 2017-03-31 13F RAMBUS INC DEL COM 750917106 192,798 1,511 0.79 2,532 -3.98 0.0021
2017-02-13 2016-12-31 13F RAMBUS INC DEL COM 750917106 191,287 90,897 90.54 2,637 110.29 0.0025
2016-10-12 2016-09-30 13F RAMBUS INC DEL COM 750917106 100,390 73,496 273.28 1,254 294.34 0.0013
2016-08-16 2016-06-30 13F RAMBUS INC DEL COM 750917106 26,894 0 0.00 318 -14.29 0.0003
2016-05-16 2016-03-31 13F RAMBUS INC DEL COM 750917106 26,894 4,442 19.78 371 42.15 0.0004
2016-02-16 2015-12-31 13F RAMBUS INC DEL COM 750917106 22,452 0 0.00 261 0.77 0.0003
2015-11-13 2015-09-30 13F RAMBUS INC DEL COM 750917106 22,452 0 0.00 259 -21.75 0.0003
2015-07-31 2015-06-30 13F RAMBUS INC DEL COM 750917106 22,452 1,644 7.90 331 27.31 0.0004
2015-05-14 2015-03-31 13F RAMBUS INC DEL COM 750917106 20,808 4,099 24.53 260 36.13 0.0003
2015-02-20 2014-12-31 13F/A-1 RAMBUS INC DEL COM 750917106 16,709 0 0.00 191 -7.28 0.0002
2015-02-17 2014-12-31 13F RAMBUS INC DEL COM 750917106 16,709 0 191 0.0002
2014-11-14 2014-09-30 13F RAMBUS INC DEL COM 750917106 16,709 16,709 206 0.0002
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.