Event-Driven Stocks

Gossamer Bio, Inc.

GOSSNasdaq

Healthcare · Pharmaceutical Preparations · DE · SEC filings ↗ · Compare ⊕

View price & chart on Yahoo Finance ↗
Signs● 2 good● 5 warning● 2 severedetails ↓

Financials

SEC XBRL · annual
 FY25FY24FY23FY22FY21FY20
Revenue$48.5M$114.7M$0$0——
Operating income−$170.7M−$59.9M−$183.8M−$218.6M−$216.1M−$234.0M
Net income−$170.4M−$56.5M−$179.8M−$229.4M−$234.0M−$243.4M
Total assets$172.2M$315.3M$311.9M$272.4M$343.7M$539.4M
Total liabilities$295.0M$285.8M$249.1M$260.4M$222.2M$218.7M
Equity−$122.8M$29.5M$62.8M$12.1M$121.5M$320.7M
EPS (diluted)$-0.75$-0.25$-1.18$-2.71$-3.13$-3.55
Shares out.227.2M225.6M95.0M76.5M75.5M66.3M

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
−352.2%
Net margin
−351.5%
Return on equity
138.8%
Return on assets
−98.9%
Return on capital (ROCE)
−156.9%
Liabilities / assets
171.3%
Debt / equity
—
Book value / share
$-0.54
Revenue growth (YoY)
−57.7%
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)
-30.36distress
Accruals / assets
0.5%clean
Piotroski F-Score
0/9weak

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 Score
29
/ 100
Profitability 20Growth 0Catalyst 67Earnings quality 33Financial strength 25

Our 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

● 2 severe● 5 warning● 2 good
  • Negative shareholder equity
  • Altman Z″ in the distress zone
  • Operating losses (negative operating margin)
  • Reported a net loss
  • Revenue declined year-over-year
  • High leverage (liabilities > 70% of assets)
  • Negative operating cash flow
  • Strong return on equity (>15%)
  • 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

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
SettlementShares shortDays to coverΔ vs prior
May 15, 202640.8M11.5+2.0%
Apr 30, 202640.0M7.7-0.4%
Apr 15, 202640.2M4.8+7.2%
Mar 31, 202637.5M2.8+2.4%
Mar 13, 202636.6M2.7+5.5%

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

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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