Rambus Inc.
US ˙ NasdaqGS ˙ US7509171069

SecurityRMBS / Rambus Inc.
InstitutionPacer Advisors, Inc.
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Pacer Advisors, Inc. closes position in RMBS / Rambus Inc.

On May 6, 2026 - Pacer Advisors, Inc. filed a 13F-HR form disclosing ownership of 0 shares of Rambus Inc. (US:RMBS) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 24, 2026 disclosing 20,459 shares of Rambus Inc.. The current value of the position is $0 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 Common Stock - Domestic 750917106 0 -100.00 0
2026-02-24 2025-12-31 13F/A-1 Rambus Common Stock - Domestic 750917106 20,459 1,595 8.46 1,880 -4.38 0.0048
2025-10-15 2025-09-30 13F Rambus Common Stock - Domestic 750917106 18,864 13,336 241.24 1,966 456.66 0.0049
2025-08-12 2025-06-30 13F Rambus Common Stock - Domestic 750917106 5,528 -2,555 -31.61 354 -15.55 0.0009
2025-05-06 2025-03-31 13F Rambus Common Stock - Domestic 750917106 8,083 -18,728 -69.85 418 -70.50 0.0010
2025-01-22 2024-12-31 13F Rambus Common Stock - Domestic 750917106 26,811 -14,054 -34.39 1,417 -17.86 0.0031
2024-11-12 2024-09-30 13F Rambus Common Stock - Domestic 750917106 40,865 8,855 27.66 1,725 -8.24 0.0036
2024-08-13 2024-06-30 13F Rambus Common Stock - Domestic 750917106 32,010 2,308 7.77 1,881 2.45 0.0043
2024-05-10 2024-03-31 13F Rambus Common Stock - Domestic 750917106 29,702 13,542 83.80 1,836 66.52 0.0042
2024-01-16 2023-12-31 13F RAMBUS INC DEL Common Stock - Domestic 750917106 16,160 15,609 2,832.85 1,103 3,573.33 0.0031
2023-11-13 2023-09-30 13F RAMBUS INC DEL Common Stock - Domestic 750917106 551 -325 -37.10 31 -46.43 0.0001
2023-07-12 2023-06-30 13F RAMBUS INC DEL Common Stock - Domestic 750917106 876 876 56 0.0002
2023-05-02 2023-03-31 13F RAMBUS INC DEL Common Stock - Domestic 750917106 0 -442,672 -100.00 0 -100.00
2023-02-06 2022-12-31 13F RAMBUS INC DEL Common Stock - Domestic 750917106 442,672 18,868 4.45 15,857 47.18 0.0811
2022-10-18 2022-09-30 13F RAMBUS INC DEL Common Stock - Domestic 750917106 423,804 53,879 14.56 10,773 35.51 0.0750
2022-08-12 2022-06-30 13F RAMBUS INC DEL Common Stock - Domestic 750917106 369,925 99,833 36.96 7,950 -7.70 0.0590
2022-04-05 2022-03-31 13F RAMBUS INC DEL Common Stock - Domestic 750917106 270,092 270,092 8,613 0.0706
2021-10-15 2021-09-30 13F RAMBUS INC DEL Common Stock - Domestic 750917106 0 -147,708 -100.00 0 -100.00
2021-07-21 2021-06-30 13F RAMBUS INC DEL Common Stock - Domestic 750917106 147,708 57,693 64.09 3,502 100.11 0.0501
2021-04-05 2021-03-31 13F RAMBUS INC DEL Common Stock 750917106 90,015 64,421 251.70 1,750 291.50 0.0304
2021-01-20 2020-12-31 13F RAMBUS INC DEL Common Stock 750917106 25,594 3,717 16.99 447 49.50 0.0084
2020-10-19 2020-09-30 13F RAMBUS INC DEL Common Stock 750917106 21,877 21,877 299 0.0064
2020-07-29 2020-06-30 13F RAMBUS INC DEL Common Stock 750917106 0 -15,162 -100.00 0 -100.00
2020-04-23 2020-03-31 13F RAMBUS INC DEL Common Stock 750917106 15,162 -19,466 -56.21 187 -60.80 0.0038
2020-02-10 2019-12-31 13F RAMBUS INC DEL Common Stock 750917106 34,628 -2,368 -6.40 477 -1.85 0.0215
2019-10-10 2019-09-30 13F RAMBUS INC DEL Common Stock 750917106 36,996 7,133 23.89 486 35.00 0.0109
2019-08-12 2019-06-30 13F RAMBUS INC DEL Common Stock 750917106 29,863 -2,066 -6.47 360 7.78 0.0088
2019-04-10 2019-03-31 13F RAMBUS INC DEL Common Stock 750917106 31,929 -9,498 -22.93 334 5.03 0.0093
2019-02-13 2018-12-31 13F RAMBUS INC DEL Common Stock 750917106 41,427 24,203 140.52 318 69.15 0.0112
2018-11-14 2018-09-30 13F RAMBUS INC DEL Common Stock 750917106 17,224 10,395 152.22 188 118.60 0.0071
2018-08-14 2018-06-30 13F RAMBUS INC DEL Common Stock 750917106 6,829 3,703 118.46 86 104.76 0.0039
2018-05-14 2018-03-31 13F Rambus COM 750917106 3,126 3,126 42 0.0023
2017-11-08 2017-09-30 13F RAMBUS INC DEL Com 750917106 0 -1,798 -100.00 0 -100.00
2017-08-08 2017-06-30 13F RAMBUS INC DEL Com 750917106 1,798 1,798 21 0.0021
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.