Event-Driven Stocks

ARENA PHARMACEUTICALS INC

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

Signs1 good4 warningdetails ↓

Financials

SEC XBRL · annual
 FY21FY20FY19FY18FY17FY16
Revenue$54,000$319,000$806.4M$18.0M$21.3M$92.2M
Operating income−$624.3M−$426.6M$482.7M−$144.8M−$92.0M−$5.3M
Net income−$616.4M−$404.7M$397.6M−$29.4M−$91.4M−$22.5M
Total assets$784.7M$1.19B$1.17B$686.9M$339.3M$169.0M
Total liabilities
Equity$673.2M$1.08B$1.07B$606.3M$207.1M$39.9M
EPS (diluted)$-10.14$-2.00$12.10$-0.63$-2.77$-0.89
Shares out.60.3M50.2M49.5M39.4M245.5M242.9M

Reported figures from the company's SEC filings (XBRL). Blank where a line item isn't cleanly tagged — never estimated.

Key ratios

from filings · FY2021
Operating margin
−1156109.3%
Net margin
−1141542.6%
Return on equity
−91.6%
Return on assets
−78.6%
Return on capital (ROCE)
−86.9%
Liabilities / assets
Debt / equity
Book value / share
$11.16
Revenue growth (YoY)
−83.1%
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 · FY2021
Accruals / assets
21.0%clean
Piotroski F-Score
1/8weak

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
40
/ 100
Profitability 0Growth 0Catalyst 33Earnings quality 67Financial strength 100

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. What these scores mean →

Signs

4 warning1 good
  • Operating losses (negative operating margin)
  • Reported a net loss
  • Revenue declined year-over-year
  • Negative operating cash flow
  • Clean earnings (low accruals)

Derived from the company's own SEC figures (fundamentals, forensic scores, filing discipline) — descriptive factors, not advice or a forecast.

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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