Pulmonx Corp
LUNGNasdaqHealthcare · Surgical & Medical Instruments & Apparatus · DE · SEC filings ↗ · Compare ⊕
View price & chart on Yahoo Finance ↗Financials
SEC XBRL · annual| FY25 | FY24 | FY23 | FY22 | FY21 | FY20 | |
|---|---|---|---|---|---|---|
| Revenue | $90.5M | $83.8M | $68.7M | $53.7M | $48.4M | $32.7M |
| Operating income | −$53.7M | −$57.7M | −$61.9M | −$58.6M | −$47.3M | −$32.3M |
| Net income | −$54.0M | −$56.4M | −$60.8M | −$58.9M | −$48.7M | −$32.2M |
| Total assets | $129.3M | $162.8M | $177.8M | $193.7M | $235.2M | $263.7M |
| Total liabilities | $75.2M | $77.0M | $59.5M | $39.7M | $41.9M | $37.6M |
| Equity | $54.1M | $85.8M | $118.3M | $154.0M | $193.2M | $226.1M |
| EPS (diluted) | $-1.33 | $-1.44 | $-1.60 | $-1.59 | $-1.35 | $-3.16 |
| Shares out. | 39.8M | 38.5M | 37.6M | 37.0M | 35.7M | 35.7M |
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
- −59.3%
- Net margin
- −59.7%
- Return on equity
- −99.8%
- Return on assets
- −41.8%
- Return on capital (ROCE)
- −49.1%
- Liabilities / assets
- 58.1%
- Debt / equity
- 1.39×
- Book value / share
- $1.36
- Revenue growth (YoY)
- 8.0%
- 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)
- -11.04distress
- Accruals / assets
- −16.7%clean
- Beneish M-Score
- -3.27normal
- Piotroski F-Score
- 3/9weak
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
● 1 severe● 3 warning● 2 good- Altman Z″ in the distress zone
- Operating losses (negative operating margin)
- Reported a net loss
- Negative operating cash flow
- Revenue is growing year-over-year
- Clean earnings (low accruals)
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- Vanguard Group IncPassive (13G)Mar 27, 2026
- Soleus Capital Master Fund, L.P.Passive (13G)Mar 9, 2026
- Primecap Management Co/Ca/Passive (13G)Nov 13, 2025
- Fmr LlcPassive (13G)Nov 7, 2025
- Morgan StanleyPassive (13G)May 7, 2025
- Blackrock, Inc.Passive (13G)Apr 24, 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 | 2.7M | 4.8 | -24.2% |
| Apr 30, 2026 | 3.6M | 7.2 | +26.5% |
| Apr 15, 2026 | 2.8M | 13.7 | -1.5% |
| Mar 31, 2026 | 2.9M | 5.2 | -13.4% |
| Mar 13, 2026 | 3.3M | 3.1 | -0.5% |
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 operationsApr 29, 2026
- Entered a material agreement · Terminated a material agreement · New financial obligation · Unregistered equity saleMar 5, 2026
- Results of operationsMar 4, 2026
- Results of operationsNov 12, 2025
- Results of operations · Director / officer changeOct 27, 2025
- Results of operationsJul 30, 2025
- Shareholder voteMay 23, 2025
- Results of operationsApr 30, 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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