Rambus Inc.
US ˙ NasdaqGS ˙ US7509171069

SecurityRMBS / Rambus Inc.
InstitutionSilvercrest Asset Management Group Llc
Latest Disclosed Ownership25,451 shares
Latest Disclosed Value $ 2,189,547
Silvercrest Asset Management Group Llc reports 89.82% decrease in ownership of RMBS / Rambus Inc.

On May 15, 2026 - Silvercrest Asset Management Group Llc filed a 13F-HR form disclosing ownership of 25,451 shares of Rambus Inc. (US:RMBS) valued at $2,189,550 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 249,986 shares of Rambus Inc.. This represents a change in shares of -89.82% during the quarter. The current value of the position is $4,343,468 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 COM 750917106 25,451 -224,535 -89.82 2,190 -90.47 0.0158
2026-02-17 2025-12-31 13F RAMBUS INC DEL COM 750917106 249,986 -214,903 -46.23 22,972 -52.58 0.1579
2025-11-14 2025-09-30 13F RAMBUS INC DEL COM COM 750917106 464,889 -15,559 -3.24 48,442 57.49 0.3206
2025-08-14 2025-06-30 13F RAMBUS INC DEL COM 750917106 480,448 -33,480 -6.51 30,759 15.60 0.2066
2025-05-15 2025-03-31 13F RAMBUS INC DEL COM 750917106 513,928 -2,205 -0.43 26,609 -2.47 0.1905
2025-02-14 2024-12-31 13F RAMBUS INC DEL COM 750917106 516,133 -23,251 -4.31 27,283 19.81 0.1822
2024-11-14 2024-09-30 13F RAMBUS INC DEL COM COM 750917106 539,384 -8,827 -1.61 22,773 -29.31 0.1549
2024-08-15 2024-06-30 13F/A-1 RAMBUS INC DEL COM COM 750917106 548,211 37,693 7.38 32,213 2.08 0.2210
2024-08-14 2024-06-30 13F RAMBUS INC DEL COM COM 750917106 1,096,422 585,904 64,426 0.2210
2024-05-15 2024-03-31 13F RAMBUS INC DEL COM COM 750917106 510,518 -82,344 -13.89 31,555 -22.01 0.2135
2024-02-14 2023-12-31 13F RAMBUS INC DEL COM COM 750917106 592,862 -3,311 -0.56 40,463 21.65 0.2862
2023-11-14 2023-09-30 13F RAMBUS INC DEL COM COM 750917106 596,173 -277,876 -31.79 33,261 -40.70 0.2525
2023-08-14 2023-06-30 13F RAMBUS INC DEL COM COM 750917106 874,049 -291,291 -25.00 56,088 -6.11 0.4001
2023-05-15 2023-03-31 13F RAMBUS INC DEL COM COM 750917106 1,165,340 -36,572 -3.04 59,735 38.75 0.4536
2023-02-14 2022-12-31 13F RAMBUS INC DEL COM COM 750917106 1,201,912 -455,259 -27.47 43,052 2.20 0.3310
2022-11-14 2022-09-30 13F RAMBUS INC DEL COM COM 750917106 1,657,171 -122,635 -6.89 42,125 10.14 0.3465
2022-08-15 2022-06-30 13F RAMBUS INC DEL COM COM 750917106 1,779,806 -43,548 -2.39 38,248 -34.22 0.2907
2022-05-16 2022-03-31 13F RAMBUS INC DEL COM COM 750917106 1,823,354 -535,987 -22.72 58,146 -15.47 0.3777
2022-02-14 2021-12-31 13F RAMBUS INC DEL COM COM 750917106 2,359,341 -96,148 -3.92 68,787 26.19 0.4358
2021-11-15 2021-09-30 13F RAMBUS INC DEL COM COM 750917106 2,455,489 2,783 0.11 54,511 -6.26 0.3674
2021-08-16 2021-06-30 13F RAMBUS INC DEL COM COM 750917106 2,452,706 -70,116 -2.78 58,154 18.58 0.3814
2021-05-17 2021-03-31 13F RAMBUS INC DEL COM COM 750917106 2,522,822 -321,912 -11.32 49,044 -1.26 0.3311
2021-02-16 2020-12-31 13F RAMBUS INC DEL COM COM 750917106 2,844,734 -121,684 -4.10 49,669 22.31 0.3625
2020-11-16 2020-09-30 13F RAMBUS INC DEL COM COM 750917106 2,966,418 -60,492 -2.00 40,610 -11.73 0.3484
2020-08-14 2020-06-30 13F RAMBUS INC DEL COM COM 750917106 3,026,910 83,540 2.84 46,009 40.82 0.4081
2020-05-15 2020-03-31 13F RAMBUS INC DEL COM COM 750917106 2,943,370 2,943,370 32,672 0.3504
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.