TotalMarketCap

Market cap

$412.961 M

$5.08 -10.56%

Close of 6 Nov 2026

As of 6 Nov 2026, Phathom Pharmaceuticals (PHAT) has a market capitalization of $413.0M. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$175.1M

#2318 by revenue

Earnings

-$221.3K

Loss-making

Shares outstanding

81,291,520

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Biotechnology: Pharmaceutical Preparations, ranked by market cap

All 498 →
  1. #199ArvinasARVN$427.0M
  2. #200OculisOCS$419.1M
  3. #201Phathom PharmaceuticalsPHAT$413.0M
  4. #202CorMedixCRMD$407.3M
  5. #203Prothena Corp PublicPRTA$406.3M

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Where these numbers come from

Share counts and financials for Phathom Pharmaceuticals are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.