RMBS
Rambus IncNASDAQ
Technology • Semiconductors
Factor tilt: Mid-Cap Blend
$74.53+6.96%
Close Nov 6, 2026
- Market cap
- $8.11B
- 1 month
- -31.3%
- 3 months
- -22.3%
- 1 year
- -31.4%
- 52-week range
- $69.68$170.66
- Dividend
- No dividends on record
- Short interest
- 4.0% of float4.3M shares · settled Oct 15, 2026 · -10.4% since Sep 30, 2026 · FINRA
Fundamentals · trailing 12 months to Sep 30, 2026
- Revenue
- $796.11M
- Net income
- $265.87M
- Free cash flow
- $312.93M
- Book value
- $1.42B
- Total debt
- $20.22M
- P/E
- 30.5×
- Price / sales
- 10.2×
- Price / book
- 5.7×
- FCF yield
- +3.9%
- Net margin
- +33.4%
EODHD (TTM) · as of Nov 6, 2026
End-of-day close from stored market data, not a live quote.
About Rambus Inc
Rambus Inc. manufactures and sells semiconductor products in the United States, South Korea, Singapore, and internationally. It offers memory interface chips comprising DDR5 memory interface chips which include registering clock driver, multiplexed registering clock driver, multiplexed data buffer, power management integrated circuits, serial presence detect hubs, temperature sensors, and client clock driver
Read more
products; and DDR4 memory interface chips. The company also provides silicon IP, such as interface and security IP solutions that move and protect data in advanced artificial intelligence, data center, government, and automotive applications; interface IP solutions for high-speed memory and chip-to-chip digital controller IP; security IP solutions, including crypto cores, hardware roots of trust, high-speed protocol engines, and chip provisioning technologies. In addition, it offers portfolio of patents that covers memory architecture, high-speed serial links, and security products. The company sells its products to memory module manufacturers, OEMs and hyperscalers, as well as to chip makers. It markets its products and services through its direct sales force and distributors. Rambus Inc. was incorporated in 1990 and is headquartered in San Jose, California.
- Website
- rambus.com
- Headquarters
- San Jose, CA, United States
- Employees
- 791
- Listed
- May 14, 1997
- Fiscal year ends
- December
Company profile from EODHD, stored Oct 28, 2026.
Quarterly results
The last 8 fiscal quarters as reported (EODHD). Year over year compares the same quarter a year earlier.
| Quarter | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Sep 2026filed Oct 26, 2026 | $218.3M | +22.3% | 78.3% | $83.7M | $74.6M |
| Jun 2026filed Jul 28, 2026 | $207.4M | +20.4% | 79.8% | $72.7M | $67.6M |
| Mar 2026filed Apr 28, 2026 | $180.2M | +8.1% | 79.7% | $61.8M | $59.9M |
| Dec 2025filed Feb 18, 2026 | $190.2M | +18.1% | 78.9% | $70.8M | $63.8M |
| Sep 2025filed Oct 28, 2025 | $178.5M | +22.7% | 74.4% | $63.3M | $48.4M |
| Jun 2025filed Jul 29, 2025 | $172.2M | +30.3% | 74.9% | $63.0M | $57.9M |
| Mar 2025filed Apr 29, 2025 | $166.7M | +41.4% | 75.4% | $63.1M | $60.3M |
| Dec 2024filed Feb 24, 2025 | $161.1M | +31.8% | 78.5% | $57.9M | $62.2M |
Fiscal years · last 6
| Fiscal year | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Dec 2025filed Feb 18, 2026 | $707.6M | +27.1% | 76.0% | $260.2M | $230.5M |
| Dec 2024filed Feb 24, 2025 | $556.6M | +20.7% | 75.4% | $179.0M | $179.8M |
| Dec 2023filed Feb 23, 2024 | $461.1M | +1.4% | 69.1% | $91.5M | $333.9M |
| Dec 2022filed Feb 24, 2023 | $454.8M | +38.5% | 69.0% | $80.1M | -$14.3M |
| Dec 2021filed Feb 28, 2022 | $328.3M | +33.3% | 70.0% | $29.9M | $18.3M |
| Dec 2020filed Feb 26, 2021 | $246.3M | +10.0% | 62.8% | -$41.8M | -$40.5M |
Short-interest history
FINRA reports open short positions for a settlement date. The publication date is later. These are reported positions, with a separate date for each observation.
Compare the reported short exposure around the dates you bought, sold or watched RMBS. A long position benefits from price rises; a short position benefits from falls. A change in these counts does not predict either move.
Settlement Oct 15, 2026
4,287,851 shares short
-496,538 shares (-10.4%) vs Sep 30, 2026
4% of the stored float. Published Oct 26, 2026.
Settlement Sep 30, 2026
4,784,389 shares short
-1,437,920 shares (-23.1%) vs Sep 15, 2026
4.4% of the stored float. Published Oct 9, 2026.
Settlement Sep 15, 2026
6,222,309 shares short
+161,400 shares (+2.7%) vs Aug 31, 2026
5.8% of the stored float. Published Sep 24, 2026.
Settlement Aug 31, 2026
6,060,909 shares short
+628,818 shares (+11.6%) vs Aug 14, 2026
5.7% of the stored float. Published Sep 10, 2026.
Settlement Aug 14, 2026
5,432,091 shares short
+1,344,960 shares (+32.9%) vs Jul 31, 2026
5.1% of the stored float. Published Aug 25, 2026.
Settlement Jul 31, 2026
4,087,131 shares short
-494,585 shares (-10.8%) vs Jul 15, 2026
3.8% of the stored float. Published Aug 11, 2026.
Change = this settlement’s shares short − the previous recorded settlement’s shares short; percentage change divides by that earlier count. A zero earlier count has no percentage change. Split-spanning counts are left uncompared. Float percentages use the stored settlement observation, not today’s float.
Source: stored FINRA equity short-interest records, up to six settlements from the last 240 days. FINRA data and reporting dates · How to read short interest
Dividends and stock splits
See the recorded cash amounts and dates behind RMBS’s income, and the splits that change its share count. Dates below are stored event records, not confirmation of a payment to your account.
Cash-dividend records
No qualified cash-dividend records are stored. This does not establish that the company pays no dividend.
Up to six Polygon cash-dividend events, including recorded ex-dates within the next 120 days. Amounts retain their recorded currency and decimal precision. Historical amounts are not restated to a common split basis, annualized, or converted to dollars.
For a long holding, compare the ex-date with when you held the shares and check the pay date against your broker’s cash history. Owning the stock today does not establish past entitlement. For a short holding, a dividend can create a payment obligation to the share lender.
Ex-dates and special dividend rules · Short-sale dividend obligations · Dividend data definitions
Split history
4 for 1 · forward split
Effective Jun 15, 2000
Each 1 pre-split share becomes 4 post-split shares.
Source: EODHD
Up to six stored split dates through Nov 7, 2026. Equivalent vendor ratios are combined; conflicting ratios are left out. This history may be incomplete.
A split changes the share count and per-share price basis; it does not by itself add investment value. Put your holding’s earlier and later share counts on the same basis before comparing them. This applies to both long shares and shares owed on a short position.
How stock splits workPortfolio context
Sign in to see your position size
We’ll show you if RMBS is in your portfolio and how much it contributes.
Sign inMarket context
Loading market dates
Smart money context
Holder IQ: MEDIUM
84 smart-money holders: institutions with a high Holder IQ
Q2 2026, filed Nov 3, 2026
Smart-money 13F trend: distributing (light)
Unlock crowding heatmapUnlock filer discoveryInsider context
Sentiment: bearish
Last trade: sell 33 days ago
Read the insider context evidence
What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
Stored recent-activity label: bearish. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Red flags: 0
Read the insider context evidence
What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
Stored recent-activity label: bearish. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Largest 13-F holders · Q2 2026
626 filers reported a long position in RMBS for Q2 2026. 13-F holdings are filed up to 45 days after the quarter ends.
The top 10 hold
55.1%
of the 100.6M shares 13-F filers reported
Moves vs Q1 2026
4 added6 trimmed
Net shares held
+6.3%
across the 10 holders with a comparable Q1 2026 book
| Rank | Holder | Value | Shares | Shares vs Q1 2026 |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.9B · 14M shares | 14M | -14.4% |
| 2 | FMR LLC | $1.4B · 10.5M shares | 10.5M | +215.2% |
| 3 | Invesco Ltd. | $880.4M · 6.6M shares | 6.6M | +2.1% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $805.5M · 6.1M shares | 6.1M | -8.7% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $647M · 4.9M shares | 4.9M | +1% |
| 6 | STATE STREET CORP | $519.5M · 3.9M shares | 3.9M | -10.5% |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $442.6M · 3.3M shares | 3.3M | -1.2% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $305.1M · 2.3M shares | 2.3M | -26.5% |
| 9 | JPMORGAN CHASE & CO | $261M · 2.1M shares | 2.1M | +14.4% |
| 10 | DIMENSIONAL FUND ADVISORS LP | $228.2M · 1.7M shares | 1.7M | -4.2% |
Sign in to see each holder’s Holder IQ, factor-adjusted Holder IQ and rank, and compare these holders with all scored filers. Available on every plan.
Sign in5% holder filings (13D / 13G)
Holders of more than 5% of RMBS file with the SEC within days. A 13D holder may seek to influence the company; a 13G holder is passive. Each holder’s latest filing from the last three years.
| Filed | Holder | % of class |
|---|---|---|
| Nov 5, 2026 | FMR LLC13G · passive · amended | 6.6% |
| Oct 27, 2026 | BlackRock, Inc.13G · passive · amended | 10.4% |
| May 15, 2026 | PRICE T ROWE ASSOCIATES INC /MD/13G · passive · amended | 3.1%under 5% |
| May 6, 2026 | Invesco Ltd.13G · passive | 6% |
| Apr 30, 2026 | VANGUARD CAPITAL MANAGEMENT LLC13G · passive | 5.22% |
| Apr 29, 2026 | VANGUARD PORTFOLIO MANAGEMENT LLC13G · passive | 6.23% |
| Mar 27, 2026 | VANGUARD GROUP INC13G · passive · amended | 0%under 5% |
Get the Full Analysis for RMBS
Unlock detailed insider transactions, institutional holder changes, factor exposures, and personalized alerts. Start free with your own portfolio.