Ambiq Micro, Inc.
AMBQNYSETechnology · Semiconductors & Related Devices · DE · SEC filings ↗ · Compare ⊕
View price & chart on Yahoo Finance ↗Financials
SEC XBRL · annual| FY25 | FY24 | |
|---|---|---|
| Revenue | $72.5M | $76.1M |
| Operating income | −$39.5M | −$40.6M |
| Net income | −$36.5M | −$39.7M |
| Total assets | $184.7M | $104.3M |
| Total liabilities | $22.2M | $18.5M |
| Equity | $162.5M | −$292.4M |
| EPS (diluted) | $-4.57 | $-113.50 |
| Shares out. | 18.3M | 434,720 |
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
- −54.5%
- Net margin
- −50.3%
- Return on equity
- −22.4%
- Return on assets
- −19.7%
- Return on capital (ROCE)
- −23.9%
- Liabilities / assets
- 12.0%
- Debt / equity
- 0.14×
- Book value / share
- $8.87
- Revenue growth (YoY)
- −4.7%
- Net income growth (YoY)
- —
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)
- 5.22safe
- Accruals / assets
- −9.1%clean
- Beneish M-Score
- -3.44normal
- Piotroski F-Score
- 4/9mixed
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
● 4 warning● 3 good- Operating losses (negative operating margin)
- Reported a net loss
- Revenue declined year-over-year
- Negative operating cash flow
- Conservative leverage (liabilities < 50% of assets)
- 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- T. Rowe Price Investment Management, Inc.Passive (13G)May 15, 2026
- Kleiner Perkins Caufield & Byers Xvi, LlcPassive (13G)Nov 3, 2025
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 | 978,024 | 1.0 | -5.5% |
| Apr 30, 2026 | 1.0M | 3.2 | -12.3% |
| Apr 15, 2026 | 1.2M | 4.1 | -1.1% |
| Mar 31, 2026 | 1.2M | 2.7 | +248.9% |
| Mar 13, 2026 | 341,783 | 1.0 | +125.4% |
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- Results of operationsMay 12, 2026
- Results of operationsMar 5, 2026
- Results of operationsJan 21, 2026
- Director / officer changeJan 8, 2026
- Results of operationsNov 6, 2025
- Director / officer changeOct 3, 2025
- Results of operationsSep 4, 2025
- Amended charter or bylawsJul 31, 2025
Events the company reported on Form 8-K, labelled by the SEC item code it filed under — its own classification, not our interpretation.