# Rambus Inc: overview

RMBS · Nasdaq · CIK 917273 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/rmbs.md) · [Financials](/companies/rmbs/financials.md) · [Filings](/companies/rmbs/filings.md) · [Insiders](/companies/rmbs/insiders.md)

Latest reported revenue: [$218.3m](/filings/0001193125-26-431941.md) for Q3 FY2026, three months to 2026-09-30, from the 10-Q filed Oct 26, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax, accession 0001193125-26-431941).

## Last eight quarters

| Line item | Unit | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) | Q3 FY2026 (2026-09-30) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [161 d](/filings/0001193125-26-057101.md) | [167](/filings/0001193125-26-186931.md) | [172](/filings/0001193125-26-321000.md) | [179](/filings/0001193125-26-431941.md) | [190 d](/filings/0001193125-26-057101.md) | [180](/filings/0001193125-26-186931.md) | [207](/filings/0001193125-26-321000.md) | [218](/filings/0001193125-26-431941.md) |
| Gross margin | % | [80.4% d](/filings/0001193125-26-057101.md) | [80.3%](/filings/0001193125-26-186931.md) | [79.8%](/filings/0001193125-26-321000.md) | [79.5%](/filings/0001193125-26-431941.md) | [78.9% d](/filings/0001193125-26-057101.md) | [79.7%](/filings/0001193125-26-186931.md) | [79.8%](/filings/0001193125-26-321000.md) | [78.3%](/filings/0001193125-26-431941.md) |
| Operating margin | % | [35.9% d](/filings/0001193125-26-057101.md) | [37.9%](/filings/0001193125-26-186931.md) | [36.6%](/filings/0001193125-26-321000.md) | [35.4%](/filings/0001193125-26-431941.md) | [37.2% d](/filings/0001193125-26-057101.md) | [34.3%](/filings/0001193125-26-186931.md) | [35.1%](/filings/0001193125-26-321000.md) | [38.3%](/filings/0001193125-26-431941.md) |
| Net margin | % | [38.6% d](/filings/0001193125-26-057101.md) | [36.2%](/filings/0001193125-26-186931.md) | [33.6%](/filings/0001193125-26-321000.md) | [27.1%](/filings/0001193125-26-431941.md) | [33.6% d](/filings/0001193125-26-057101.md) | [33.2%](/filings/0001193125-26-186931.md) | [32.6%](/filings/0001193125-26-321000.md) | [34.2%](/filings/0001193125-26-431941.md) |
| Diluted EPS | $ per share | not reported | [0.56](/filings/0001193125-26-186931.md) | [0.53](/filings/0001193125-26-321000.md) | [0.44](/filings/0001193125-26-431941.md) | not reported | [0.55](/filings/0001193125-26-186931.md) | [0.61](/filings/0001193125-26-321000.md) | [0.69](/filings/0001193125-26-431941.md) |
| Free cash flow | $m | [52.5 d](/filings/0001193125-26-057101.md) | [69.5](/filings/0001193125-26-186931.md) | [87.9 d](/filings/0001193125-26-321000.md) | [82.5 d](/filings/0001193125-26-431941.md) | [93.3 d](/filings/0001193125-26-057101.md) | [71.6](/filings/0001193125-26-186931.md) | [52.2 d](/filings/0001193125-26-321000.md) | [95.9 d](/filings/0001193125-26-431941.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 12-month figure less the 9-month figure; 6-month figure less the 3-month figure; 9-month figure less the 6-month figure.

## Last five fiscal years

| Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [328](/filings/0000917273-24-000028.md) | [455](/filings/0000917273-25-000021.md) | [461](/filings/0001193125-26-057101.md) | [557](/filings/0001193125-26-057101.md) | [708](/filings/0001193125-26-057101.md) |
| Gross margin | % | [78.6%](/filings/0000917273-24-000028.md) | [76.3%](/filings/0000917273-25-000021.md) | [77.6%](/filings/0001193125-26-057101.md) | [80.2%](/filings/0001193125-26-057101.md) | [79.6%](/filings/0001193125-26-057101.md) |
| Operating margin | % | [7.4%](/filings/0000917273-24-000028.md) | [16.9%](/filings/0000917273-25-000021.md) | [33.3%](/filings/0001193125-26-057101.md) | [32.9%](/filings/0001193125-26-057101.md) | [36.8%](/filings/0001193125-26-057101.md) |
| Net margin | % | [5.6%](/filings/0000917273-24-000028.md) | [(3.1%)](/filings/0000917273-25-000021.md) | [72.4%](/filings/0001193125-26-057101.md) | [32.3%](/filings/0001193125-26-057101.md) | [32.6%](/filings/0001193125-26-057101.md) |
| Diluted EPS | $ per share | [0.16](/filings/0000917273-24-000028.md) | [(0.13)](/filings/0000917273-25-000021.md) | [3.01](/filings/0001193125-26-057101.md) | [1.65](/filings/0001193125-26-057101.md) | [2.11](/filings/0001193125-26-057101.md) |
| Free cash flow | $m | [195](/filings/0000917273-24-000028.md) | [213](/filings/0000917273-25-000021.md) | [173](/filings/0001193125-26-057101.md) | [200](/filings/0001193125-26-057101.md) | [333](/filings/0001193125-26-057101.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/rmbs/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $1.85bn | 13,964,477 |  | Reduced −2,340,829 |
| [FMR LLC](/funds/315066.md) | 2026-06-30 | $1.39bn | 10,460,026 |  | Added +7,141,577 |
| [Invesco Ltd.](/funds/914208.md) | 2026-06-30 | $880.4m | 6,632,458 |  | Added +133,410 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](/funds/2100121.md) | 2026-06-30 | $805.5m | 6,068,516 |  | Reduced −575,804 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $647.0m | 4,874,385 |  | Added +46,531 |
| [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $519.5m | 3,915,113 |  | Reduced −458,504 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $305.1m | 2,297,660 |  | Reduced −826,835 |
| [JPMORGAN CHASE & CO](/funds/19617.md) | 2026-06-30 | $261.0m | 2,101,418 |  | Added +264,918 |
| [DIMENSIONAL FUND ADVISORS LP](/funds/354204.md) | 2026-06-30 | $228.2m | 1,719,400 |  | Reduced −75,895 |
| [Swedbank AB](/funds/946431.md) | 2026-06-30 | $218.6m | 1,646,500 |  | Added +83,500 |

## Recent filings

[All 1,220 filings](/companies/rmbs/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-26 | 16:13 ET | [10-Q](/filings/0001193125-26-431941.md) | Quarterly report, period 2026-09-30 | 0001193125-26-431941 |
| 2026-10-26 | 16:07 ET | [8-K](/filings/0001193125-26-431918.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-431918 |
| 2026-09-04 | 16:05 ET | [8-K](/filings/0001193125-26-383630.md) | 5.02 Departure or appointment of officers or directors | 0001193125-26-383630 |
| 2026-08-05 | 07:50 ET | [8-K](/filings/0001193125-26-333887.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-26-333887 |
| 2026-07-28 | 16:10 ET | [10-Q](/filings/0001193125-26-321000.md) | Quarterly report, period 2026-06-30 | 0001193125-26-321000 |
| 2026-07-27 | 16:06 ET | [8-K](/filings/0001193125-26-318063.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-318063 |
| 2026-04-29 | 17:09 ET | [8-K](/filings/0001193125-26-192210.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001193125-26-192210 |
| 2026-04-28 | 16:05 ET | [10-Q](/filings/0001193125-26-186931.md) | Quarterly report, period 2026-03-31 | 0001193125-26-186931 |
| 2026-04-27 | 16:08 ET | [8-K](/filings/0001193125-26-182076.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-182076 |
| 2026-04-24 | 16:05 ET | [8-K](/filings/0001193125-26-177140.md) | 5.07 Shareholder vote results; 8.01 Other events | 0001193125-26-177140 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001193125-26-057101.md), filed Feb 18, 2026.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 917273
- Tickers: RMBS
- Exchange: Nasdaq
- SIC code: 3674 Semiconductors & Related Devices
- State of incorporation: DE
- Filer category: Large accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 27, 2026, 17:32 ET. No prices; not investment advice.