RAMBUS INC
RMBSNasdaqTechnology · Semiconductors & Related Devices · DE · SEC filings ↗ · Compare ⊕
View price & chart on Yahoo Finance ↗Financials
SEC XBRL · annual| FY25 | FY24 | FY23 | FY22 | FY21 | FY20 | |
|---|---|---|---|---|---|---|
| Revenue | $707.6M | $556.6M | $461.1M | $454.8M | $328.3M | $246.3M |
| Operating income | $260.2M | $183.0M | $153.6M | $76.9M | $24.3M | −$44.1M |
| Net income | $230.5M | $179.8M | $333.9M | −$14.3M | $18.3M | −$40.5M |
| Total assets | $1.53B | $1.34B | $1.26B | $1.01B | $1.23B | $1.25B |
| Total liabilities | $165.1M | $222.4M | $220.1M | $233.3M | $370.3M | $338.7M |
| Equity | $1.36B | $1.12B | $1.04B | $779.3M | $862.4M | $912.7M |
| EPS (diluted) | $2.11 | $1.65 | $3.01 | $-0.13 | $0.16 | $-0.36 |
| Shares out. | 106.9M | 107.9M | 107.9M | 109.3M | 111.7M | 112.4M |
Reported figures from the company's SEC filings (XBRL). Blank where a line item isn't cleanly tagged — never estimated.
Key ratios
from filings · FY2025- Operating margin
- 36.8%
- Net margin
- 32.6%
- Return on equity
- 16.9%
- Return on assets
- 15.1%
- Return on capital (ROCE)
- 18.5%
- Liabilities / assets
- 10.8%
- Debt / equity
- 0.12×
- Book value / share
- $12.77
- Revenue growth (YoY)
- 27.1%
- Net income growth (YoY)
- 28.2%
Computed from the company's own SEC figures — no market price, so these are facts, not a valuation. Book value per share is reported equity ÷ shares; it is not the stock price.
Financial health
forensic scores · FY2025- Altman Z″ (distress)
- 13.71safe
- Accruals / assets
- −8.5%clean
- Beneish M-Score
- -2.72normal
- Piotroski F-Score
- 8/9strong
Altman Z″is a textbook bankruptcy-distress score from book values only (>2.6 safe · 1.1–2.6 grey · <1.1 distress). Accruals = (net income − operating cash flow) ÷ assets; persistently high accruals are an earnings-quality red flag. Beneish M-Scoreis an eight-ratio screen comparing this year with last (M > −1.78 = elevated manipulation-risk screen, not proof). Piotroski F-Scorecounts how many of nine fundamental-health checks pass (shown as passed / applicable; we use operating margin and total liabilities as documented proxies where the exact input isn't XBRL-tagged). Computed from SEC filings — descriptive factors, not advice or a forecast.
Quality score
EDS ScoreOur own multi-factor score from free SEC data — profitability, growth, financial strength, earnings quality, and event/ownership catalysts. No market price and no licensed model: each axis is the share of source-backed checks it passes. Descriptive factors, not advice or a forecast.
Signs
● 7 good- Operating margin is positive
- Strong return on equity (>15%)
- Revenue is growing year-over-year
- Conservative leverage (liabilities < 50% of assets)
- Positive operating cash flow
- Clean earnings (low accruals)
- Altman Z″ in the safe zone
Derived from the company's own SEC figures (fundamentals, forensic scores, filing discipline) — descriptive factors, not advice or a forecast.
5%+ owners
SEC Schedule 13D / 13G · last 3 yrs- Price T Rowe Associates Inc /Md/Passive (13G)May 15, 2026
- Invesco Ltd.Passive (13G)May 6, 2026
- Vanguard Capital Management LlcPassive (13G)Apr 30, 2026
- Vanguard Portfolio Management LlcPassive (13G)Apr 29, 2026
- Vanguard Group IncPassive (13G)Mar 27, 2026
- Blackrock, Inc.Passive (13G)Jan 21, 2026
Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.
Short interest
FINRA · bi-monthly| Settlement | Shares short | Days to cover | Δ vs prior |
|---|---|---|---|
| May 15, 2026 | 7.6M | 3.4 | +11.0% |
| Apr 30, 2026 | 6.9M | 2.1 | +1.7% |
| Apr 15, 2026 | 6.8M | 3.4 | +12.9% |
| Mar 31, 2026 | 6.0M | 3.1 | -13.4% |
| Mar 13, 2026 | 6.9M | 3.3 | +9.4% |
Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.
Material events
SEC Form 8-K · most recent- Director / officer changeApr 29, 2026
- Results of operationsApr 27, 2026
- Shareholder vote · Other material eventApr 24, 2026
- Director / officer changeFeb 12, 2026
- Director / officer changeFeb 10, 2026
- Results of operationsFeb 2, 2026
- Results of operationsOct 27, 2025
- Results of operationsJul 28, 2025
Events the company reported on Form 8-K, labelled by the SEC item code it filed under — its own classification, not our interpretation.
Recent SEC filings
All filings ↗Event-driven situations (1)
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